MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by multiple heuristics and an ML classifier, with ClamAV detecting it as a phishing trojan. The document contains a large number of external links, indicating it functions as a link farm, likely to manipulate search engine results or redirect users to malicious sites. The primary URL observed is zajinet.ru, which is associated with phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://zajinet.ru/award?keyword=como+se+hace+un+electrocardiograma+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387241/normal_6042fd53f0f60.pdfIn PDF document text
- https://cdn.sqhk.co/jozunufap/cjhihhh/85212128795.pdfIn PDF document text
- http://8gusevshop.space/bubba_forrest_gump_quotesjcn7g.pdfIn PDF document text
- https://cdn.sqhk.co/sixerusesebu/hbOQQkV/virtual_families_3_cheats_mobile.pdfIn PDF document text
- https://cdn.sqhk.co/pevedapev/Hg1jfih/xepekef.pdfIn PDF document text
- http://demask.space/nixukijiduso0l7fl.pdfIn PDF document text
- https://cdn.sqhk.co/lepavenujal/o5Rcgg2/never_gone_ost_lyrics.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4458145/normal_60019180aecbf.pdfIn PDF document text
- https://cdn.sqhk.co/gunuzuli/dYjaie6/kusadarufomewulu.pdfIn PDF document text
- https://cdn.sqhk.co/posiraki/i3cicha/sidatotebejemijuvamuxo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374699/normal_602c1f7e9d8fb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385647/normal_6022985195e10.pdfIn PDF document text
- https://cdn.sqhk.co/dirujigowag/csibQig/loputuxererut.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/a8f60e2a-a729-456e-8b9f-c588fb7b579b/what_is_the_best_robot_vacuum_on_the_market.pdfIn PDF document text
- https://c1bbde11-5cda-4f7c-8b74-b2fe90b484f5.filesusr.com/ugd/1c8c6c_3fbd604c03e14790bdd4d1c244357653.pdf?index=trueIn PDF document text
- https://d04c2b29-3777-4fe6-aaa9-ab96f87c3324.filesusr.com/ugd/43eb95_9cbce86847174cde922c7d5e28dbafed.pdf?index=trueIn PDF document text
- https://065b66ee-25d8-4381-b309-094abc4d823c.filesusr.com/ugd/2703e6_edb162c1c6774f4da35446f9ec3f3369.pdf?index=trueIn PDF document text
- https://c1d61d78-9bae-425c-b347-ee91470fe4f1.filesusr.com/ugd/60933b_ddfb75ed611d4044a55b7b66b4af1ef1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1e31187e-c67c-4ae5-b52e-0d15bfa06bf5/vaxin.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d0d9c794-8d64-4d04-9b3b-d926b824b2db/somijazanegofevudelawila.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fdb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB6 | 5476 bytes |
SHA-256: b442edd896afaf87038d3b55993d974ac71e61226b20403ed0dde137f8cc43d2 |
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font_01_sfnt_off0001102a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1102A | 11636 bytes |
SHA-256: f1044974f88d91a91396482f251737cd67f8042f0c752bfcd88b3b92d4437f22 |
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font_02_sfnt_off0001361f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1361F | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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