MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised WordPress sites. These sites host further PDF files, suggesting a multi-stage download or redirection chain designed to obscure the ultimate malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://gfow.om/wp-content/plugins/super-forms/uploads/php/files/4r5qddqk23l8b3iloo8onbg11u/12986112048.pdf In PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/vuwefikukejogirik.pdfIn PDF document text
- http://h-st.nl/bestanden/files/7161908507.pdfIn PDF document text
- http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/lomali.pdfIn PDF document text
- http://vietnam-intraco.com/webroot/img/files/66139729786.pdfIn PDF document text
- https://dianthusindustrial.com/resimler/files/73617784215.pdfIn PDF document text
- https://binhvi.com/upload/files/denafiwoweres.pdfIn PDF document text
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/6e1e8656455f76ef5890b113fc35c3dd/80785570541.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/p0mvj0h1fu371lm43cff77ned0/vomopivepariwoma.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b79e181152a---46605279158.pdfIn PDF document text
- http://anaminfo.com/attachfile/file/gufekuvekekabi.pdfIn PDF document text
- http://szentistvanpatika.hu/upload/file/xijufafidoxurovufekolata.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/95tjc9g861kij16qfefl6rg5ds/wiwikezugegaxurowukaj.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160796819aaa1b---gekuko.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/kamako.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a42e2cf8e---kolawolikikowuto.pdfIn PDF document text
- http://bertrandetgastineaudesigners.com/userfiles/file/80619085046.pdfIn PDF document text
- http://gzky.cn/dubeite/ckfinder/userfiles/files/20210620_151814.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/af07dbfd3aef09cacfc449a746bce2e4/80338682140.pdfIn PDF document text
- http://progettogeometra.it/userfiles/files/kugaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=who+can+be+a+personal+character+reference+letterPDF link annotation
- 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_off0000e3af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3AF | 16536 bytes |
SHA-256: a66508bbe55a5ad5049cdd548f675501d36eba821946fbe889f9362d397a38d8 |
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font_01_sfnt_off00010e6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E6C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012683.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12683 | 10620 bytes |
SHA-256: 9cb9462c31ee71f438b4d353dc03a1bac95d18875e0d0d79e86543c441cbfdfa |
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