Malicious PDF — malware analysis report

Static analysis result for SHA-256 f02698ba59648345…

MALICIOUS

PDF

75.7 KB Created: 2020-12-30 11:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 7e68dde5ddc07a454a35e84c798ce62d SHA-1: b949691c1e2e4551101777bcb62cb89938e68611 SHA-256: f02698ba59648345df8c49ba0f72dbf4ffdd787a7ed0d3deff8a946edffafe82
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified as a link farm, with the primary malicious URL being trafffffe.ru. This suggests the document is designed to redirect users to potentially harmful websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • 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://trafffe.ru/strik?utm_term=blues+music+genre+songs PDF link annotation
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/5032668.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/6cc86ec5c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5fd2e44268481.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445745/normal_5fcfb80e55ef3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401694/normal_5fa25c8be83e7.pdfIn PDF document text
    • https://lopiranurepo.weebly.com/uploads/1/3/4/7/134735856/a642c20e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459028/normal_5fe6fdb8e9ba0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480748/normal_5fec2d8c83dbc.pdfIn PDF document text
    • https://dowezepuxaku.weebly.com/uploads/1/3/4/4/134463959/tomusatazi_xafutunipoto.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/zibenoroduzuw/bostitch_compressor_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/mosuladup.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/bottom_navigation_activity_android_studio_example.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/zosanofegokarol.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/8001380162.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.

FilenameKindSourceSize
font_00_sfnt_off0000ecf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF7 4960 bytes
SHA-256: 3f9c3e96a89b8f0f908812bfe4877b231978a54c612de3cbd33ac8891f0fa40a
font_01_sfnt_off0000fdc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC9 10508 bytes
SHA-256: dd1a89b5e55245e890d779e04a7f37ab457cbd7229f7799f19418d1dae655e7a

Open this report in the interactive analyzer, or submit your own file for analysis.