MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, with one prominent heuristic identifying it as a 'PDF_SEO_LINK_FARM' that points to a large number of PDFs, including one hosted on s3.amazonaws.com. The primary URL, trafffi.ru, is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and link farm behavior suggest it's designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://trafffi.ru/aws?utm_term=linen+house+sheets+sale
- https://cdn-cms.f-static.net/uploads/4412606/normal_5f9dd716ef9ff.pdf
- https://sukowaletudevux.weebly.com/uploads/1/3/0/8/130874669/xukugugarazobew-rowemu-lumipenesip.pdf
- https://cdn-cms.f-static.net/uploads/4421354/normal_5fa985bc920a6.pdf
- https://cdn-cms.f-static.net/uploads/4383300/normal_5f8b912b19818.pdf
- https://cdn-cms.f-static.net/uploads/4366666/normal_5f88685adaeed.pdf
- https://cdn-cms.f-static.net/uploads/4366662/normal_5f9de9566f409.pdf
- https://cdn-cms.f-static.net/uploads/4466166/normal_5faa2f7f3fd59.pdf
- https://raxuzorufureraw.weebly.com/uploads/1/3/0/7/130775378/litonugikogekaz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zirojopemup/4025307164.pdf
- https://s3.amazonaws.com/bezutu/tijidafilizenekegiriwu.pdf
- https://s3.amazonaws.com/biwubeleba/calhoun_middle_school_web_page.pdf
- https://s3.amazonaws.com/jujojomojemiz/secret_garden_2020_movie.pdf
- https://s3.amazonaws.com/nupotukig/reloxovabiketaw.pdf
- https://uploads.strikinglycdn.com/files/3347dd99-4534-447c-b769-772ae848eb05/59438256629.pdf
- https://s3.amazonaws.com/zibenoroduzuw/seniors_2020_logo.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f136.binbe87162a4ae6dfc9e9d5252393450930ace55156f3f3720adfe54116b2dfecf4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF136 | 4620 bytes |
font_01_sfnt_off000100e6.bin4876563fc4df00a44d2775572e43941910dc0610880d53a3ad1f9e13a0fc72a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100E6 | 11220 bytes |
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