MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm or redirection mechanism to phishing or malware sites. The presence of PDF-specific heuristics further supports its role as a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://krisoc.ru/uplcv?utm_term=%25D0%25B5%25D0%25B2%25D0%25B0%25D0%25BD%25D0%25B3%25D0%25B5%25D0%25BB%25D0%25B8%25D0%25B5+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+pdf PDF link annotation
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a33a02788ff---zazodomajalokobosugaz.pdfIn PDF document text
- http://moto-bike.pl/userfiles/file/basirulopuzumun.pdfIn PDF document text
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607616ef336ab---tiruwogizetebuv.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/6b6d788c73a2c001f2273c5a10dbe0d1/muwimifox.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/7b5dba4fdb06b6b9c6a9be7d36118cb6/88460687281.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcc9e18334---27350203714.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/fccd3e93849b80a29671f7444ac02b3c/repopibukotolifisudo.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160798c9b30c53---40740560991.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/511lmocd1nsqg6vd45m7gu4dvt/famukerodutu.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608628b7984a4---lakorofadikovadutomu.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb2bdc938fa---9486938165.pdfIn PDF document text
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5652c5caac---rokisunepakavewutam.pdfIn PDF document text
- http://s-privod.ru/userfiles/file/90972870241.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e6d2bfc3c---97274639021.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/7b3089a6564e5895d5ae7e394c01053f/nurewuxoziwewitutufepu.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e112.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE112 | 5640 bytes |
SHA-256: 1cb9721e6b6b538b488582062a271ba64a6002e6badfaadf24fbf3d5f4465c0e |
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font_01_sfnt_off0000f42c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF42C | 14744 bytes |
SHA-256: 010ea81ce77972c0fd45d266d52a1ae82f5cc80ee4fb70bd73563ee2522e776b |
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