Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b5ad003d47a9b37…

MALICIOUS

PDF

72.2 KB Created: 2021-05-10 07:34:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 26babb61c8ad2b535afa3fefbb677b7f SHA-1: a4342ebd375cbe25ec2e2aafe455a6ec35ebf4cb SHA-256: 3b5ad003d47a9b37f93d57619327824bcbd3467234184c560477acb22097fb64
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6455

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 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.
  • 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://mezovuduw.ru/strik?utm_term=most+popular+vcs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456699/normal_5fd379ab536fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380887/normal_604cecf759801.pdfIn PDF document text
    • http://vedevejunogi.iblogger.org/zajeji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465705/normal_60540f6b6c51b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379474/normal_601d59f2a526f.pdfIn PDF document text
    • http://zozegakipuvi.iblogger.org/critical_thinking_skills_assessment.pdfIn PDF document text
    • https://rutelixiriselop.weebly.com/uploads/1/3/4/7/134748314/mojapajer_rawaratonabulel.pdfIn PDF document text
    • https://nijenemal.weebly.com/uploads/1/3/4/4/134465501/1aca9.pdfIn PDF document text
    • http://dovogonusiru.iblogger.org/anemia_perniciosa_laboratorio.pdfIn PDF document text
    • http://vakorizu.epizy.com/critical_thinking_download.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/76655499366.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/46416771002.pdfIn PDF document text
    • http://resisimokopi.epizy.com/84632885168.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/vojivigikolo.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/xuwazowitokajadofa.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/love_story_movie_mp3_song_download_bestwap.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/atomic_blonde_full_movie_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/labavididexo.pdfIn PDF document text
    • http://tujukiji.rf.gd/75857017676.pdfIn PDF document text
    • http://gesulobanaxa.rf.gd/dosinivox.pdfIn PDF document text