MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The presence of a large number of external links, many pointing to PDF files, suggests a link farm or SEO abuse tactic. One of the embedded URLs, 'https://dafemum.ru/strik?utm_term=consiste+em+obter+energ%25C3%25ADa+electrica', is likely part of the malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://dafemum.ru/strik?utm_term=consiste+em+obter+energ%25C3%25ADa+electrica
- https://cdn-cms.f-static.net/uploads/4454277/normal_605d1a04721ea.pdf
- https://cdn-cms.f-static.net/uploads/4450350/normal_604f8dfdce7a1.pdf
- https://cdn-cms.f-static.net/uploads/4426409/normal_604a83d99c696.pdf
- https://bumozirejukije.weebly.com/uploads/1/3/5/3/135340746/4c4c1446b.pdf
- https://static.s123-cdn-static.com/uploads/4477651/normal_5fca7842ce792.pdf
- https://cdn-cms.f-static.net/uploads/4465691/normal_6044cb1eb932f.pdf
- https://finuvowevemez.weebly.com/uploads/1/3/5/3/135397693/bejodobudodinex-zovisate.pdf
- https://static.s123-cdn-static.com/uploads/4425501/normal_6001f4e044d82.pdf
- https://cdn-cms.f-static.net/uploads/4374545/normal_606e1e2b300f9.pdf
- https://cdn-cms.f-static.net/uploads/4387939/normal_5fd643ff01c6d.pdf
- https://cdn-cms.f-static.net/uploads/4470016/normal_6013eb7ddb472.pdf
- https://pananufizusa.weebly.com/uploads/1/3/4/4/134445813/tumolixal-ponozese-pelevepap-jubugimuna.pdf
- https://cdn-cms.f-static.net/uploads/4464542/normal_6018cb7a28d51.pdf
- https://nidikibadut.weebly.com/uploads/1/3/1/4/131453007/bidurawo.pdf
- https://jimutovila.weebly.com/uploads/1/3/1/8/131856698/1334525.pdf
- https://static.s123-cdn-static.com/uploads/4449630/normal_5fc7e993db930.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/194b5440-f788-4654-b743-e23fdbeee9c3/milew.pdf
- https://uploads.strikinglycdn.com/files/caba31d8-f4ba-4df2-9c27-2f8fe228de4d/codigo_ascii_de_acento.pdf
- https://uploads.strikinglycdn.com/files/f254740a-a49d-4caa-bee8-a4c596760110/stopping_by_woods_on_a_snowy_evening_poem_meaning_in_hindi.pdf
- https://uploads.strikinglycdn.com/files/038bd85b-7e66-4673-88d1-a0e935a40b28/english_literary_devices-_definition_with_examples.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_off0000fa86.bin1530744bb9b25300da31048e9a7c504303cc442d6310d51116eff96561304ac5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA86 | 5220 bytes |
font_01_sfnt_off00010c27.bin8db65adc699bed2ed4e99b174e414cace916d9ae25f4e5597e3d94de4d1667c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C27 | 2116 bytes |
font_02_sfnt_off000115cf.binf561adaffc0b168b11ae4e84c1323c63c3253c667e99d542536d68a613c6c1d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115CF | 12864 bytes |
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