MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised WordPress sites hosting PDF files, suggesting a link farm designed to redirect users to malicious content. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate a phishing or spam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606f086ece43a---wepevozafebipat.pdf
- http://asijskepotraviny.cz/files/file/20511789702.pdf
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/wovexajilu.pdf
- http://nakatka.com/files/file/lemepuxozelovugaruru.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e163700482---voremivimexanaxalunik.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4298166aba---10487469844.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8e4866816---64579047615.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd8b0455678---5980136712.pdf
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/desigp9pl2fe0l6a2bnqvo6ngo/98231420162.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/qgaadh6an6c2mlc1icdrc4ms66/9705741425.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8bb27d2ff---bokazemiwerigoloxuxufutem.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/q8q81gk66dgfc7mguis4bntome/99643624575.pdf
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/d292972dd2c5d3f48d43d83d8abf11f0/8086645040.pdf
- https://okinawa4d.com/contents//files/90999038129.pdf
- http://hublihorse.com/uploads/userfiles/files/63193526215.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607871e0bb3b3---44356850280.pdf
- http://beytarimcilik.com/admin/editor_resim/file/21223133459.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/8o1cqa42g44quh58si6iskkotm/milarij.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a488e1692bf---vedemuxesazuguxigasaxo.pdf
- http://romanakladatelstvi.cz/userfiles/file/wolida.pdf
- http://usmleworkout.com/files/file/tupiwelijinus.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=mico+toughened+glass
- 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_off0000d61f.bin67b0275931fa724f67477c327228325947ec30bc1770a5c9481632a8e9a8bd3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD61F | 10644 bytes |
font_01_sfnt_off0000ee45.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE45 | 16792 bytes |
font_02_sfnt_off00010657.bincba843166337b4a0775b32e36c92ccf592130656285be271639acf132807bdd5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10657 | 16860 bytes |
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