MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagged for containing a large number of external links, a common tactic for SEO spam or phishing campaigns. The primary malicious URL identified is traffset.ru, which is likely used to redirect users to malicious content or further stages of an attack. The presence of numerous PDF links suggests an attempt to manipulate search engine results or distribute malicious documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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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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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://traffset.ru/123?utm_term=avast+digital+river+customer+service
- https://cdn-cms.f-static.net/uploads/4411921/normal_5f979cbe3aaad.pdf
- https://cdn-cms.f-static.net/uploads/4383679/normal_5faa0b969a9c3.pdf
- https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/puwufibutorevegos.pdf
- https://cdn-cms.f-static.net/uploads/4403127/normal_5fa08b4c99d64.pdf
- https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/buwomif.pdf
- https://cdn-cms.f-static.net/uploads/4379229/normal_5f8da22ad414d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/d2e5ec4f-1293-4f16-bb20-aa097c9735e5/mp3_minions_banana_song.pdf
- https://uploads.strikinglycdn.com/files/eef96f20-754e-4a87-a9f9-2fade7ec9ac5/35864668415.pdf
- https://s3.amazonaws.com/mejifavo/catalogo_cedulas_do_brasil_2019.pdf
- https://s3.amazonaws.com/sugaguxagu/lopinazukojapuradu.pdf
- 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_off0000c3f9.binfaafe4feea6979fd21cb48cf96841602794b686b22110fb88773beb422b1affb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3F9 | 5084 bytes |
font_01_sfnt_off0000d544.bin349522ac98ce5b716cff16358138cf73c5deb04c184cd01b08207e7b258cae1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD544 | 10912 bytes |
font_02_sfnt_off0000fa5d.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA5D | 4324 bytes |
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