MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a 'Password-protected archive handoff' heuristic suggests the document is designed to trick users into believing they need to decrypt a subsequent payload. The embedded URLs point to various websites, some of which appear to be compromised WordPress installations, further supporting the lure tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://euro520.net/userfiles/file/162278214533292907.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c137f88e619---21225627085.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ade1e1796af---19858981976.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160872e1736fa1---dijasazozodisowefex.pdf
- http://stpetersame.com/clients/9/91/91902b33218228c9a3691be2563b71f1/File/14568366162.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606f444fb9b02---52763745629.pdf
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/29ecb0b051d954ee223d1482eb82cf2e/32605254410.pdf
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/752772383b803e961dbc9c783f8b40a0/rikuliritel.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a45d3370c07---9692578998.pdf
- http://megat.pl/uploaded/fck_files/file/90435544675.pdf
- http://ascensionchina.com/userfiles/file/boxapeposuxudobanubope.pdf
- https://congnghethucpham24h.com/upload/files/gadiloliz.pdf
- http://yaeram.com/userData/board/file/20116699759.pdf
- https://cambodiaangkorhomestay.com/userfiles/file/78667984068.pdf
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/67b86ff77155bbf149f5183d0d3233d2/naxefogumubikuvapamig.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/30f31f96fffb4dcc725a47b0b002c77d/649150548.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/d844ec54a50ac19eec9d0e7453477198/22391320497.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160cab78b96516---wokemav.pdf
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/fntkicc0vj88i31m85vubd0gj1/lusovikobisokazefuv.pdf
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/efeca43553df2150227b10f7d6766d58/fajakemedek.pdf
- http://commune-bourre.com/userfiles/file/doposenuguveragasifowiso.pdf
- http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/34803468349.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=what+is+an+online+tool+to+easily+convert+word+files+to+pdf+file+that+offers+many+more+features
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000167ff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x167FF | 16792 bytes |
font_01_sfnt_off00018016.bin94accc366b51d73214fa5bf6153c6385e2a250ff26b7970a069951bd6d3f0224 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18016 | 11244 bytes |
font_02_sfnt_off00019a5a.bin18b98dbdbc9aca394246a1bf18ed7deca839dab51465d2ce0b7f604b6d3de5c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19A5A | 17832 bytes |
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