Malicious PDF — malware analysis report

Static analysis result for SHA-256 96cce446cb2dceb3…

MALICIOUS

PDF

59.1 KB Created: 2021-02-15 08:00:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1e5a610a48b994f3a57e8632f9e7cd20 SHA-1: e40771944e06dc64300dbbed73621981a7a9acd2 SHA-256: 96cce446cb2dceb3dcade7fea3d172dfeedd61eac368d1982975c06aae89a025
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or SEO spam campaign. The document body, though heavily obfuscated, contains references to 'Chrome linux accelerator' and 'wkhtmltopdf', indicating a potential lure. ClamAV and ML heuristics confirm the malicious nature, flagging it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9022

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/aws?utm_term=chrome+linux++accelerator PDF link annotation
    • https://sitimewodojex.weebly.com/uploads/1/3/1/8/131856527/c3914.pdfIn PDF document text
    • https://bifetidenogu.weebly.com/uploads/1/3/1/3/131379340/7987564.pdfIn PDF document text
    • http://venira.su/free_lute_sheet_musicnor7k.pdfIn PDF document text
    • https://fereganew.weebly.com/uploads/1/3/4/1/134131887/9c1d8.pdfIn PDF document text
    • https://raxelapanaf.weebly.com/uploads/1/3/4/7/134746791/vopivemogoreten-zodilexezano-kiratupezita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377120/normal_6014e69a98f45.pdfIn PDF document text
    • http://ubsvp.com/zisamipisuwzb41p.pdfIn PDF document text
    • https://rojanudase.weebly.com/uploads/1/3/0/9/130969060/d81729210bd.pdfIn PDF document text
    • http://cmb-eco.com/77955817402sgvv1.pdfIn PDF document text
    • https://mavezuwunokil.weebly.com/uploads/1/3/4/6/134627141/1045676.pdfIn PDF document text
    • https://zupevojug.weebly.com/uploads/1/3/0/7/130740492/c5451a45006.pdfIn PDF document text
    • http://damvglaz1.xyz/jamaxeguxelamoruvgwiu.pdfIn PDF document text
    • http://leree6.club/puzofajegetomuf0xtv.pdfIn PDF document text
    • https://rigavimiba.weebly.com/uploads/1/3/0/8/130814992/1fd8071811.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/42470043246.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/free_cryptic_music_quiz_questions_and_answers.pdfIn PDF document text

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