MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed for SEO manipulation or phishing. The 'SE_MFA_LURE' heuristic indicates the document is likely attempting to harvest credentials or session tokens by mimicking multi-factor authentication prompts. While no scripts were explicitly extracted, the PDF structure and link farm heuristics point towards a phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://traffine.ru/123?utm_term=matlab+manual+pdf+download
- https://wuxelulomevadi.weebly.com/uploads/1/3/4/9/134904547/80c2fd1f8f49c.pdf
- https://tumafivefaj.weebly.com/uploads/1/3/3/9/133999435/siriguragerogifet.pdf
- https://gebopudexor.weebly.com/uploads/1/3/4/4/134482947/xuwiger_vakuze_morebovogofulov_kusuworozeti.pdf
- https://cdn-cms.f-static.net/uploads/4370074/normal_5f8d35f3995c8.pdf
- https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/fetajopu-kefabazekupo-tipapulexuninof.pdf
- https://cdn-cms.f-static.net/uploads/4366005/normal_5f8ccde7d4eac.pdf
- https://mosozedap.weebly.com/uploads/1/3/1/8/131856454/8832421.pdf
- https://xasuvakem.weebly.com/uploads/1/3/4/4/134400919/390a4ea4a02f4.pdf
- https://radunepik.weebly.com/uploads/1/3/4/6/134617153/318d2d7e817b.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd121d1ea14523495942f8/1606226461972/qu_genix_reviews_nyc.pdf
- https://static1.squarespace.com/static/5fdfe9c7f67c863bcd18f266/t/5fe111d7bdd81f07749d024b/1608585690285/92819298271.pdf
- https://uploads.strikinglycdn.com/files/4380db1a-5237-4d2e-a4be-9d3ca258cc85/98488795494.pdf
- https://uploads.strikinglycdn.com/files/8b266eba-ccd4-4ebd-85d1-fe0e95e1e6b0/28190432549.pdf
- http://se.mathworks.com
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bdef.bindefcde9991dab51a99ec21e281fea4a37499d79256b7f5d03ab1c615dafeb836 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDEF | 4864 bytes |
font_01_sfnt_off0000ce6e.bin80373393bbef44b14e637b43feef5589956e86e0241fd7e1c30a150235a1620d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE6E | 11192 bytes |
font_02_sfnt_off0000f481.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF481 | 4324 bytes |
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