Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7022a14b5afae34…

MALICIOUS

PDF

77.4 KB Created: 2021-03-25 11:38:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 047933018b3920460b0f8bb6e94c4157 SHA-1: 1781e566584b08989ccb8c2d15c2959345ebccab SHA-256: d7022a14b5afae34225fe5db0589e6ef5c66f0508a6aa787ab2e8ae7173b51db
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that redirects to a URL associated with a search query, likely as a lure. ClamAV and ML classifiers strongly indicate maliciousness, classifying it as a phishing trojan. The presence of multiple embedded URLs suggests an attempt to redirect the user to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=skyrim+can%2527t+feed+as+vampire
    • https://cdn.sqhk.co/menaleser/bKge43B/weather_report_bangalore_electronic_city.pdf
    • https://static.s123-cdn-static.com/uploads/4479439/normal_5fc7531e1df5a.pdf
    • https://cdn.sqhk.co/kugefiruxat/jahdjfa/82134952550.pdf
    • https://cdn-cms.f-static.net/uploads/4467945/normal_6021ea2d5cd8c.pdf
    • http://noksipals.online/sanegesosunofeta586.pdf
    • http://madamzero.com/zazajaparabitotekatoxorazacdud.pdf
    • https://cdn-cms.f-static.net/uploads/4464700/normal_601d7a1596f38.pdf
    • http://intekzafast.online/risonazaxuboxoxefuwumoa42kc.pdf
    • https://cdn-cms.f-static.net/uploads/4388421/normal_604a27454aa94.pdf
    • http://13millions-warzone.store/sodoxeridc7cz.pdf
    • https://static.s123-cdn-static.com/uploads/4501201/normal_5fc672c2516f4.pdf
    • https://cdn.sqhk.co/ragejeli/eZViajf/preschool_learning_games_nick_jr.pdf
    • https://cdn-cms.f-static.net/uploads/4384310/normal_60495dc06b745.pdf
    • https://cdn.sqhk.co/janawezexoj/chjgfha/archer_cast_lana.pdf
    • https://static.s123-cdn-static.com/uploads/4386836/normal_5ffb0e694fe86.pdf
    • https://cdn-cms.f-static.net/uploads/4421983/normal_5fe96a3228e9f.pdf
    • https://cdn.sqhk.co/wixefawoz/hggc4he/idle_champions_of_the_forgotten_realms_blessings_guide.pdf
    • http://milesnires.xyz/86699284151nxlq0.pdf
    • https://cdn.sqhk.co/pixazizaze/iejchfk/kiwiburufofapitusogaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2e2.bin
c185af77f48ea0e6684bf35d4bda733be791ff24fc01bb33863dcaa93c5e0aaa
pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E2 5308 bytes
font_01_sfnt_off0000f4e7.bin
6333133506e27b172e5f4c95b4049ec9fd1f5266833c1d248c834fc3790dc8c9
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E7 11132 bytes
font_02_sfnt_off00011a7c.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A7C 4324 bytes