Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbb0debff7cb27a3…

MALICIOUS

PDF

54.8 KB Created: 2021-03-25 14:54:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 31b7b9e2fd32e69bc401d2adf11a77cc SHA-1: 92440312e0fca01dcc00ef0ea56ff7fa5d3560e5 SHA-256: fbb0debff7cb27a30906588a829e1613129eba82f5ad0d95f977359345e0b15e
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.9051

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://kuzutuzo.ru/strik?utm_term=how+to+pair+auvio+speaker PDF link annotation
    • https://rexekimat.weebly.com/uploads/1/3/4/0/134017736/8213654.pdfIn PDF document text
    • http://heleogose.online/powerful_verbs_worksheet_6th_graderv06z.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzezajolu/ARuih0a/runescape_haunted_house.pdfIn PDF document text
    • http://eurozone.pro/daxosotoloradiz4vqz2.pdfIn PDF document text
    • http://ttttrrrr.space/zetumopepifatiselu3h6kf.pdfIn PDF document text
    • https://pegufozexak.weebly.com/uploads/1/3/5/3/135317465/bifisagenowag.pdfIn PDF document text
    • http://reduslim-buy.site/61694533293ojem8.pdfIn PDF document text
    • http://urolog.xyz/eddie_bauer_baby_sling_hip_carrier_instructions0mcy3.pdfIn PDF document text
    • http://thesimplycompleteseries.com/fox_reporter_aishah_hasnie9mgb3.pdfIn PDF document text
    • https://vatubovelogised.weebly.com/uploads/1/3/4/3/134375195/9776280.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460266/normal_6054c9296d5a5.pdfIn PDF document text
    • http://eglo.club/756709755871v3n2.pdfIn PDF document text
    • https://cdn.sqhk.co/pemoxeriko/AhhbS0s/hard_rock_music_bands_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417805/normal_603b8e5a2258a.pdfIn PDF document text
    • http://bodyita.space/19212230457o3gu0.pdfIn PDF document text
    • https://fupixadig.weebly.com/uploads/1/3/4/0/134096542/nogebevenu-rigex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_6034220017a61.pdfIn PDF document text
    • https://cdn.sqhk.co/pagozixupezi/jf3hghe/3147400965.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418166/normal_60077424df150.pdfIn PDF document text
    • http://zoom-omsk.ru/the_humans_stephen_karam_scriptw370w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425501/normal_5ffc012eea298.pdfIn PDF document text

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