Malicious PDF — malware analysis report

Static analysis result for SHA-256 99ac5979224e6c5b…

MALICIOUS

PDF

59.8 KB Created: 2021-03-09 03:28:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: ded246a140a932c5d8f1abd76888340f SHA-1: a06d97364b3ec3833b530ad8ad4e57e01b353fbf SHA-256: 99ac5979224e6c5b0e5825fec8fbe76680425e6ba2eedfb4047e55112169633f
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document functions as a link farm, directing users to numerous external websites, many of which are hosted on disposable domains. The primary URL suggests a phishing or scam attempt disguised as a review. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7003

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/strik?utm_term=altered+carbon+season+2+review+guardian PDF link annotation
    • https://fapezadedafax.weebly.com/uploads/1/3/4/6/134609176/cd3a0e91.pdfIn PDF document text
    • https://nevajuto.weebly.com/uploads/1/3/2/6/132695651/231dca98a097a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469386/normal_5fdabf3a3e10d.pdfIn PDF document text
    • https://wefejakero.weebly.com/uploads/1/3/0/8/130814310/6efd5ddaf005a0d.pdfIn PDF document text
    • https://sezavifibeka.weebly.com/uploads/1/3/4/4/134463458/6d61570a12aea6.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/IjflWih/wurususovepiso.pdfIn PDF document text
    • https://cdn.sqhk.co/garisuvonuk/i4gdhjO/roman_numerals_1-_20_worksheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466379/normal_5fe2897850f18.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/dziauha/megapolis_city_building_simulator._urban_strategy_apk.pdfIn PDF document text
    • http://duwelizub.mywebcommunity.org/nulafe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_603422a93c02e.pdfIn PDF document text
    • https://digokevun.weebly.com/uploads/1/3/4/7/134747151/ae53b6519.pdfIn PDF document text
    • https://cdn.sqhk.co/xaselavub/aPhbggG/agricola_score_sheet_printable.pdfIn PDF document text
    • http://tobidogajetu.onlinewebshop.net/tolusitofoleli.pdfIn PDF document text
    • https://52ed6390-a5c1-4502-9f93-599cf6d98ad1.filesusr.com/ugd/f7fbc8_a6525833d804458c9eb0862c49d0505a.pdf?index=trueIn PDF document text
    • https://238a82c5-85a8-4641-a991-2f0f5270ddc4.filesusr.com/ugd/63f22d_96c6b73eb5594c928a1aa13291d40e8d.pdf?index=trueIn PDF document text
    • https://f55c6975-0091-4942-a106-dc80285e5f9d.filesusr.com/ugd/8a4248_60dff850e4234a4db58f2637c35af287.pdf?index=trueIn PDF document text
    • http://rinimodosejowuf.myartsonline.com/how_much_does_it_cost_to_buy_adobe_illustrator.pdfIn PDF document text
    • https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_e643dcd910964c67b1ac678bc056acbd.pdf?index=trueIn PDF document text
    • http://gitojaxekeveki.onlinewebshop.net/kotal.pdfIn PDF document text