MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to multiple compromised WordPress sites and disposable hosting, strongly suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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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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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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://xn--h49al33a2zdp0eo1x.com/DATA/file/20210623033619.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086847c2bdd4---60165376073.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/a79c6b7e7c197018b6abe7cc92e0cab0/voluju.pdf
- http://tramtronbetong.com/uploads/userfiles/file/77871078282.pdf
- https://driftwoodcc.com/userfiles/files/91204150903.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/5onv9i41isk01kioldoun7ct4l/pozununifa.pdf
- http://curtisfamilyfun.net/clients/e/e0/e02f67ab5b6879a7eb6c21a3163f7106/File/kexatepigizaginak.pdf
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a32c9f0fbd3---tovamutijewuwegopomozafi.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/8a4b1d7744721291bd84ac050e6995ac/xukikexewo.pdf
- http://www.allatpatikapecs.hu/images/file/fosasuguz.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160ae5b839373f---41972248542.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/d619664dd440250ead7c5aaf8666b4cd/35391525840.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16096107c97776---47807891468.pdf
- http://allamericannursing.com/userfiles/file/kimuwifipokiwanibesoxu.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608840e9168b6---9527059769.pdf
- https://hanomanberjaya.com/contents//files/penaxasuteti.pdf
- http://topstec.com/d/files/6094424137.pdf
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/df2fec6438b754c992e6ca6297f9fca5/57422610438.pdf
- https://careoncall.in/userfiles/files/nigez.pdf
- https://augsburger-dartliga.de/uploads/file/7264647652.pdf
- https://moraure.net/js/ckfinder/userfiles/files/53745327294.pdf
- http://aroma-es.red/yamituki-n/uploads/files/77547754095.pdf
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a702003826a---51053516727.pdf
- http://downloadlink.or
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=cost+accounting+a+managerial+emphasis+15th+edition+solutions+chapter+11
- 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_off00010ad3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AD3 | 16792 bytes |
font_01_sfnt_off000122ea.bin9493b3671880efeee0895a39d0c81833711f5998e71daecc5d269d70e6c738c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122EA | 11276 bytes |
font_02_sfnt_off00013d13.bine24dd3b4a3f4b1cab173a4e8757fdfa288aa6b12f09fe526a244a0317880ce3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D13 | 17248 bytes |
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