MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is unreadable, but the presence of a link farm on disposable hosting and compromised sites points to a tactic of obscuring the true destination of the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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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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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 https://drafthe.ru/uplcv?utm_term=inflammatory+response+syndrome+sirs+pdf PDF link annotation
- http://caffepontoni.com/uploads/file/dalufiwewasufubaj.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/f3467848533206d84137ca6ac01175d8/segobidejugogafevemeje.pdfIn PDF document text
- http://hilltop1976.com/clients/24685/File/sunenodapedoninotok.pdfIn PDF document text
- http://anapro.com/ckfinder/userfiles/files/davibik.pdfIn PDF document text
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609194a87c1fc---67900475227.pdfIn PDF document text
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/1623947770343.pdfIn PDF document text
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a5a8db1765ea6bfe3ad9b890812d3eac/66301525742.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/fixevepag.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/jesuzigivolozajad.pdfIn PDF document text
- https://autotrans911.com/thread/admin/uploads/file/51578546337.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/36073026033.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/26e009184bada957b019ce1dda19ebad/zimolobetanebokapipe.pdfIn PDF document text
- http://sdtrafficticketlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zumefasivalawubugaj.pdfIn PDF document text
- http://winhazel.com/indigo/ckfinder/userfiles/files/zosotuf.pdfIn PDF document text
- https://beautyyaurient.com/editor_upload/file/72931330540.pdfIn PDF document text
- https://gw21.ch/uploads/userfiles/file/62697934597.pdfIn PDF document text
- http://pcmcpropertyblog.com/wp-content/plugins/super-forms/uploads/php/files/960a50b280a11808aae190744b3ccf27/83866383611.pdfIn PDF document text
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a32b78e1c7---8038114840.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/bbb23a056cc2f985fcf789141206d7ff/96669168314.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c0bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d8cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8CF | 17584 bytes |
SHA-256: 4267799c50f2f38fbbfa5cfb1f45b41da96acdfb23ee749b3d2c5b4491a8677f |
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font_02_sfnt_off0001065e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1065E | 10724 bytes |
SHA-256: 6216f47e162074cf76b66dc3920a6d9721ac13a6a9a0eb1d080987dba068d4b3 |
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