Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a74a8841a9d425…

MALICIOUS

PDF

72.7 KB Created: 2021-01-09 19:21:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 17f887a0927f9bb40127484ca4dae41e SHA-1: 7d78e1c93b2fd3826a94ef1a7bc010cad6b9cf37 SHA-256: c3a74a8841a9d4259199c6998f50de3c06842cd487a8e6a44dd3317a586579b0
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 PDF SEO link farm. The primary URL, 'https://traffset.ru/aws?utm_term=2018+elantra+gls+manual', suggests a lure related to vehicle manuals, likely to drive traffic to a network of other sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely involving 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://traffset.ru/aws?utm_term=2018+elantra+gls+manual PDF link annotation
    • https://bewupoterefi.weebly.com/uploads/1/3/1/3/131380107/boreko-ginopebavafirew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486054/normal_5fd30c40aec2e.pdfIn PDF document text
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/gezumuwavizegekis.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/mQ7Eheb/mod_mutant_creatures_1._7._10.pdfIn PDF document text
    • https://gezameluloxeg.weebly.com/uploads/1/3/5/3/135393377/d3a0b99780ea692.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391620/normal_5f8e67c567185.pdfIn PDF document text
    • https://cdn.sqhk.co/rilowikapaz/jhfjc6i/1936083787.pdfIn PDF document text
    • https://mabulibatelirip.weebly.com/uploads/1/3/4/5/134597637/986113.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368952/normal_5f8b02292cc65.pdfIn PDF document text
    • https://bilewazivabo.weebly.com/uploads/1/3/2/8/132816117/bugiviberuwip.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/rujimidujek/best_stock_android_tablet_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/57334511586.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/31863444640.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/85145809965.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/nuputinivewewufa.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_off0000dbe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE7 5428 bytes
SHA-256: 2d8ede6093f7b04b34dc162adbb789e3fdb24bb8573752f0ba1d490ecca3b08a
font_01_sfnt_off0000ee48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE48 12832 bytes
SHA-256: 25b396d8eaa92e92b02a13f2d8a2f8180e0ff52459f8199631abc0b8f74c50c0

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