Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ce07799370d7fe…

MALICIOUS

PDF

63.0 KB Created: 2021-04-26 22:00:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f4368edfd0f7671c060d28a88ba096f SHA-1: 625d69b54114def566575771fcc5c02c50010cf8 SHA-256: b2ce07799370d7fef206c71eacdf5a4299383bb8fa0937ab415db475090a0456
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and is flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, appears to be a lure related to 'Lord of flies sparknotes chapter 3', directing users to a suspicious URL for further action. No scripts were extracted, but the overall structure suggests a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9639

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://vilenefex.ru/strik?utm_term=lord+of+flies+sparknotes+chapter+3
    • https://bufuxilanu.weebly.com/uploads/1/3/4/4/134402831/b634b27ee24f4.pdf
    • https://static.s123-cdn-static.com/uploads/4403414/normal_5fefe8f40f2fb.pdf
    • https://cdn.sqhk.co/jizuxadif/4jbYieI/pictoword_level_55.pdf
    • https://judumufef.weebly.com/uploads/1/3/0/7/130738812/1304199.pdf
    • https://static.s123-cdn-static.com/uploads/4382781/normal_5fde575deb719.pdf
    • https://static.s123-cdn-static.com/uploads/4476590/normal_5ff680f6d85db.pdf
    • https://cdn-cms.f-static.net/uploads/4500893/normal_6046a4b6a03a3.pdf
    • https://cdn.sqhk.co/nusipodagunu/xjeRYhb/vaxef.pdf
    • https://cdn.sqhk.co/dimowitop/bhccieq/53646522203.pdf
    • https://witowufagefalob.weebly.com/uploads/1/3/0/7/130738848/3fa4be0609e0037.pdf
    • https://uploads.strikinglycdn.com/files/9a226ecd-3de4-44bf-a2ac-73949145a954/fosetabulegodugavepux.pdf
    • https://uploads.strikinglycdn.com/files/d0bc4afb-267a-4471-9d35-1c1ad850a711/why_do_my_legs_hurt_at_night_during_pregnancy.pdf
    • https://s3.amazonaws.com/bisegilupuf/hp_laserjet_p2035n_toner_compatible.pdf
    • http://lafagelupuf.myartsonline.com/mozewosazusevajotolakad.pdf
    • http://sokekakeloji.onlinewebshop.net/brave_new_world_review.pdf
    • https://s3.amazonaws.com/xisefowu/crayon_coloring_template.pdf
    • https://s3.amazonaws.com/dubiditiginowo/56112638512.pdf
    • https://uploads.strikinglycdn.com/files/355479ef-bf12-4e68-bc62-2468591be8ac/24360668245.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.