Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee19a135c44df55…

MALICIOUS

PDF

91.0 KB Created: 2021-02-18 21:31:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 32bd3e9b9e7beedc4642a2d4b2afcc45 SHA-1: 2a17d0fbcaaf9d1b95936e6115372c92ece55457 SHA-256: eee19a135c44df55c45644c9fde525f0d673048f0fe82a2167e6fb6c0b196ae5
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains embedded URIs pointing to external resources, likely for phishing or malware distribution. The presence of external URIs suggests an attempt to redirect the user to a malicious site, aligning with phishing or credential harvesting tactics.

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://bologen.ru/strik?utm_term=echo+srm+230+parts PDF link annotation
    • https://cdn.sqhk.co/pugirunosamo/4jgibid/tank_war_machines.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/l7hlUie/fokojutod.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/gglethe/69909370657.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418985/normal_5ff9ce38c6c71.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420031/normal_5fefb77483ec7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411702/normal_5fe65389b35a0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385415/normal_5fdda79f53037.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367674/normal_5fef6b433d4ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365570/normal_5ff57be785c7c.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupasuzoku/aWjdoOV/wemovaleba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407998/normal_60013904e67bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383689/normal_600f5aed4ac7b.pdfIn PDF document text
    • https://cdn.sqhk.co/risevejuxik/cIWhbjb/72800570283.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376358/normal_5fdfc2f18fc7e.pdfIn PDF document text
    • https://cdn.sqhk.co/muzedikerum/KoRjgha/kolipenojarijisozivema.pdfIn PDF document text
    • https://cdn.sqhk.co/jebumujo/Mi2ibBY/40658030308.pdfIn PDF document text
    • https://cdn.sqhk.co/wixefawoz/gdijKxw/27810259087.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00011ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED5 5536 bytes
SHA-256: 5540835978f32335fa3f0a3824068ef0e4058b8c165658e10d4d8cfab968864c
font_01_sfnt_off0001317b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1317B 12820 bytes
SHA-256: 637a5c2d57b1422052d64ba876fd7ff3e719a1176dc24d6a48c96f50050c4059

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