Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c2a45f98452d774…

MALICIOUS

PDF

91.3 KB Created: 2021-01-14 11:34:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 2e871a94e220526a75fc23bb1e4c93dd SHA-1: 9d7bf4613c6087c6b0fc1bfacfc151d028ae43ab SHA-256: 2c2a45f98452d774c720bcf2be5528ef9c5cde15617f8c892f554fbb2973f952
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://gettraff.ru/123?utm_term=leaf+green+pokemon+game'. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or malware distribution attempt.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=leaf+green+pokemon+game In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374520/normal_5f891831be95f.pdfIn PDF document text
    • https://site-1172223.mozfiles.com/files/1172223/47541920226.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450256/normal_5fc8881cf2aad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454047/normal_5fe58a47dee5b.pdfIn PDF document text
    • https://site-1168377.mozfiles.com/files/1168377/whatsapp_plus_4_apk_abo2sadam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489843/normal_5fcbfbcb598fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404727/normal_5fa3dc9b9749b.pdfIn PDF document text
    • https://vosaxiwajikox.weebly.com/uploads/1/3/0/9/130969878/roxutomogap.pdfIn PDF document text
    • https://safasisi.weebly.com/uploads/1/3/4/4/134472516/45adc894d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8825ba44f81.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/fonibinaraj/xogoviwedologofezo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114A1 6604 bytes
SHA-256: 9bc70b6a00dbd4f316533c2701fb515b2d48e987c76a6b1a2210da233fe6d604
font_01_sfnt_off00012b57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B57 5016 bytes
SHA-256: 662a117674b9bbd6876c4360610362821af8ad67a8cc7396724269401dadaf6a
font_02_sfnt_off00013c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C66 10452 bytes
SHA-256: 5979bd25721c5bf845516c8b5c15ace7e002ed38b8bd113a74ac3688a67bc556

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