PDF malware analysis — malicious · 9d86e26509953229

MALICIOUS

PDF

76.4 KB Created: 2020-11-17 20:41:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: c1bf6e654f93f377e220b233296fda9f SHA-1: bb1dcfa564a6ab3615683d2f36ef7f6031cef226 SHA-256: 9d86e265099532297889365a9e81d2976549532c0d32d2287f3addb4d0ca64d8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'trafffi.ru', suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of malicious intent, likely related to spearphishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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/strik?utm_term=ap+world+history+chapter+2+test PDF link annotation
- https://zobejonimofov.weebly.com/uploads/1/3/4/3/134354570/jekef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377410/normal_5f8c24d3c3cfc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413238/normal_5fb2f6e0460cb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365551/normal_5f8736d87f6fb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380380/normal_5fa2a5a696f90.pdfIn PDF document text
- https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/3327695.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387581/normal_5fa4463a6ee66.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369336/normal_5f887fcf39022.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444655/normal_5fa1b3258d96d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/memul/24889207884.pdfIn PDF document text
- https://s3.amazonaws.com/zuses/lowekudojujat.pdfIn PDF document text
- https://s3.amazonaws.com/patotale/66038010066.pdfIn PDF document text
- https://s3.amazonaws.com/zunewidimem/pennyrile_state_park_lodge.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e514.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE514	5476 bytes
SHA-256: `2d419c821fc69ea7ab98ba01808d53b7c48fcbff9e80790273b47dea3ac18c10`
`font_01_sfnt_off0000f7c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7C2	14524 bytes
SHA-256: `555a9f8aed31e0b2573121cc2aac5b83ff2e3d1ed4f28d720ab6ece3506bf190`

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