MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous URLs, many hosted on compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of external URIs and link farms indicates a likely phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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 https://krisoc.ru/uplcv?utm_term=kris+x+lancer PDF link annotation
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b371f360718---gukutibakabarul.pdfIn PDF document text
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4682dfb4d---fifasoba.pdfIn PDF document text
- https://clearpatth.com/userfiles/file/18960845870.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160796f7338d7c---zenomajizipizelovejuj.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/n3c6hibei8rvbbpoph2eps6g86/66300643283.pdfIn PDF document text
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/dasawolunexewerogu.pdfIn PDF document text
- http://bjbtrh.com/files/pic/file/96585184128.pdfIn PDF document text
- https://nutricount.cz/UserFiles/File/wevowovuxevikubudurino.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd6ab206a2a---pafez.pdfIn PDF document text
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/o6q8gkr5vap5f9ia1nens9rf8o/vixuno.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/37700749722.pdfIn PDF document text
- http://strandedtattoo.net/file/19088773828.pdfIn PDF document text
- http://momsystem.ru/public/file/77924250922.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/42d426982c86bd7f423f55a40a2cac2c/tiveti.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file/%5C/xanezugidozo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001154d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1154D | 7644 bytes |
SHA-256: b6699f843c62167987ba890e99f1ff3ae528c532b552254aca33240c540a99bb |
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font_01_sfnt_off00012f6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F6B | 4832 bytes |
SHA-256: 68e8e50e2cd9594730cd0557df7c1f4a6580578aec48518debc01ef7057e90b0 |
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font_02_sfnt_off00013fef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FEF | 12200 bytes |
SHA-256: ba839e3c98eba952da3e8e0f3d74dfe0e8917d9f227f76b5e4df7297324f8828 |
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font_03_sfnt_off000168fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x168FD | 16080 bytes |
SHA-256: 99dc80f4e35ecbd485aec20692fae4feb9ee2895e9102f631d55a3222af1d7fe |
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