Malicious PDF — malware analysis report

Static analysis result for SHA-256 e695d90bb05608cc…

MALICIOUS

PDF

74.1 KB Created: 2020-12-27 00:40:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ebfe496e7e00d4ad1f9614f2833e228 SHA-1: 152512cbf27a0df0a1c5f855fb6329a23e13fc9f SHA-256: e695d90bb05608cccda1558f4707e8d31df0c526718a7a2635e9bb6e05ce0db4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL pointing to 'traffine.ru', which is flagged as suspicious and likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

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://traffine.ru/strik?utm_term=fold+up+trundle+bed+with+mattress
    • https://cdn-cms.f-static.net/uploads/4449605/normal_5f9e4e6bbde39.pdf
    • https://nofefikow.weebly.com/uploads/1/3/4/5/134510094/f3ea84.pdf
    • https://cdn-cms.f-static.net/uploads/4415051/normal_5f9b64304824c.pdf
    • https://romugazasemagop.weebly.com/uploads/1/3/4/8/134897733/dbfcd0bdc7.pdf
    • https://cdn.sqhk.co/niminililez/Pwggajd/dejunikarolinub.pdf
    • https://static.s123-cdn-static.com/uploads/4390999/normal_5fe25f70b3312.pdf
    • https://cdn-cms.f-static.net/uploads/4387702/normal_5fb5402ec2252.pdf
    • https://cdn.sqhk.co/kokuxisa/aNggFfR/geboxiropolezogux.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dusubonifu/zagexipogibadipa.pdf
    • https://s3.amazonaws.com/jajuzasalikirut/dedadepudixevebajoda.pdf
    • https://uploads.strikinglycdn.com/files/79035d2f-87b9-4c4d-b487-ee0205fcd3e5/ragudizisikewafezo.pdf
    • https://uploads.strikinglycdn.com/files/c817d19c-acd6-4088-b768-e37b4e624d2d/bikibofajagafejoto.pdf
    • https://s3.amazonaws.com/bufipevuril/adobe_photoshop_7._0_free_cnet.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.

FilenameKindSourceSize
font_00_sfnt_off0000e69c.bin
57b17a93bda8411aacaa1c64f98799b229c28e902030fd3de0bc69ee9e6a9ccc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE69C 5388 bytes
font_01_sfnt_off0000f8c4.bin
33919edda492f07bb8d97c2be0001a20aa759c25572fabc9cf94b97ba23ca1c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C4 10336 bytes

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