Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9b5438d9f157c16…

MALICIOUS

PDF

74.2 KB Created: 2021-02-24 11:18:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 4e3635c59be934505039d725e2d7afca SHA-1: f488f76a685d5ae5b179cdc43de56df75cada753 SHA-256: d9b5438d9f157c16caab3892db82ac3b40f23c8092cba66cbad22031e6aafab8
94 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier. An external URI pointing to 'baarspo.ru' was extracted, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and a URL that aligns with the heuristic findings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9714

Heuristics 3

  • 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
  • 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://baarspo.ru/strik?utm_term=how+globalization+affect+african+culture PDF link annotation
    • https://cdn.sqhk.co/ruxuvedije/iHXjit5/67944631379.pdfIn PDF document text
    • https://cdn.sqhk.co/gonolesuzam/ejjgche/93102098776.pdfIn PDF document text
    • https://cdn.sqhk.co/kelanadu/hXX0jgh/tusozitazid.pdfIn PDF document text
    • https://cdn.sqhk.co/texojijoraso/hhhe0ia/big_box_office_movies_2014.pdfIn PDF document text
    • https://cdn.sqhk.co/putizimetiwe/wheugdd/sword_knights_ghost_hunter_idle_rpg.pdfIn PDF document text
    • https://cdn.sqhk.co/fovulifavu/iagdhjH/racing_moto_3d_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gupimupiset/hjdn5jj/70304867453.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465565/normal_5fc5a12bdd435.pdfIn PDF document text
    • https://cdn.sqhk.co/sesijisova/dF6hbc0/88626184273.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wedizakur.epizy.com/fixer_alt_balaji_series.pdfIn PDF document text
    • http://zuniguvip.epizy.com/pusuvut.pdfIn PDF document text
    • http://fobajoruvibu.epizy.com/bluestacks_android_emulator_for_ipad.pdfIn PDF document text
    • http://siripuxem.rf.gd/jozazedufawijutalokasav.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA4 5112 bytes
SHA-256: da3bb5531b4f14671d6f76baad18cceae359d6190a1b8e289e5258b26ca22969

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