Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cfd2529fb25275e…

MALICIOUS

PDF

50.6 KB Created: 2021-03-01 06:40:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53d6f85d8d23e6be0d6cfa9f0fd137e2 SHA-1: ba6af71a80c6b6f1d89417343b4c3b1e6d92aa3d SHA-256: 6cfd2529fb25275e828e075857d5816ecdd5578c2827408cc0c7725748cc076a
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many hosted on disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6779

Heuristics 4

  • 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 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://mezovuduw.ru/aws?utm_term=how+to+setup+netgear+powerline+1000
    • http://triple-doska5.club/the_rise_of_anthropological_theorystyo1.pdf
    • https://static.s123-cdn-static.com/uploads/4474206/normal_600115f320d59.pdf
    • https://cdn.sqhk.co/mexovaru/hbDJz5Q/space_images_free.pdf
    • https://xosenevofas.weebly.com/uploads/1/3/5/3/135324499/rubupavuzobalu_lutuzi_rodirapimox.pdf
    • https://cdn.sqhk.co/jisokemefaz/TidO8E0/classifica_musica_italiana_febbraio_2020.pdf
    • https://static.s123-cdn-static.com/uploads/4413121/normal_5ff1445c720a9.pdf
    • http://anrostore.ru/psalm_103_loving_and_forgiving_lyricsu3jwk.pdf
    • https://cdn.sqhk.co/leruwexikud/hgIjjQP/98094251020.pdf
    • http://volosaty100.xyz/mewovetimuvuwevaje005ax.pdf
    • http://datinge.site/libro_el_alquimista_de_paulo_coelho502st.pdf
    • https://cdn-cms.f-static.net/uploads/4413016/normal_5fd2602a76bce.pdf
    • http://50off.pro/98825801829p6ijb.pdf
    • https://s3.amazonaws.com/tanikanaw/what_kind_of_charger_does_beats_solo_3_use.pdf
    • https://s3.amazonaws.com/dugibabafod/lazuzumozopelafovu.pdf

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