MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
This PDF document is identified as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It functions as a link farm, directing users to various external URLs, one of which is associated with a scam lure. The primary attack pattern observed is an advance-fee scam, leveraging deceptive content to trick users into clicking malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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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://trafffe.ru/strik?utm_term=free+gay+chat+dating+sites+uk
- https://cdn-cms.f-static.net/uploads/4369504/normal_5faa2045d4bea.pdf
- https://riwominejakubik.weebly.com/uploads/1/3/4/5/134598273/7c76b55c3a866.pdf
- https://melegejisud.weebly.com/uploads/1/3/1/3/131379421/dewuvatagulil.pdf
- https://tabupuja.weebly.com/uploads/1/3/4/6/134647436/7986182.pdf
- https://static.s123-cdn-static.com/uploads/4408599/normal_5fe31219d7abc.pdf
- https://cdn-cms.f-static.net/uploads/4365661/normal_5f86f79e52b86.pdf
- https://cdn-cms.f-static.net/uploads/4423136/normal_5fb74d60c8429.pdf
- https://jikeberu.weebly.com/uploads/1/3/1/8/131857846/kubowirokaxub.pdf
- https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/1000608.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/7c406ab4-8c6f-4a20-9b93-c9a410fede7c/woxevegebeja.pdf
- https://uploads.strikinglycdn.com/files/a9486d73-088b-4ac3-9ad3-5c9b4ccdddd6/eic_worksheet_b_form_1040.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_off0000dde5.bin8aa988fb0bdb41ff3a1664b0ac8c270a5189cc12fcfb2ed3a1ee7b4fc54d1b7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE5 | 5060 bytes |
font_01_sfnt_off0000ef14.binb6a492168495b7d4af8455520af3dbdc9d7c3a56369b25563a7c10d0f76630c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF14 | 10780 bytes |
font_02_sfnt_off00011385.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11385 | 4324 bytes |
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