Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9875533d4864baa…

MALICIOUS

PDF

52.6 KB Created: 2020-11-22 03:19:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70c53a1fccf80e248f5085c2c95bedb1 SHA-1: c573004b007e2b79478ba153a343f34237f92ff8 SHA-256: b9875533d4864baa5a9c18d56e026e38bcaf88fb50ad3c734d4e2202ae6e7de3
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded URLs, many of which point to disposable hosting and are used in a link farm. The document body, though heavily obfuscated, suggests a lure related to Aadhaar card applications, aiming to trick users into clicking malicious links. The presence of external URIs and the ML classifier's flagging strongly indicate a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6442

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://traffking.ru/aws?utm_term=aadhaar+card+online+form+fillup
    • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/gisikenesujupakafox.pdf
    • https://fuloremazugad.weebly.com/uploads/1/3/4/3/134356453/5334620.pdf
    • https://jurulekoteg.weebly.com/uploads/1/3/4/7/134700509/moziwokujobo-vowututemibazu.pdf
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/7443628.pdf
    • https://xonujofepip.weebly.com/uploads/1/3/4/3/134385468/7423102.pdf
    • https://gefeteki.weebly.com/uploads/1/3/4/3/134310298/5182039.pdf
    • https://uploads.strikinglycdn.com/files/f40ae682-9ad9-4b76-b3cd-85f2d6411a2d/late_adulthood_physical_development.pdf
    • https://s3.amazonaws.com/pisedij/9908489193.pdf
    • https://s3.amazonaws.com/fekaduvopigab/bodyweight_workout_routines.pdf
    • https://uploads.strikinglycdn.com/files/b705bdd7-457a-44a0-aeff-48e9cb3d76d6/who_killed_spottedleaf.pdf
    • https://s3.amazonaws.com/fonazuzixagizir/battle_brothers_cheat_engine_experience.pdf
    • https://s3.amazonaws.com/napoledunadigo/company_profile_design_sample.pdf
    • https://uploads.strikinglycdn.com/files/bd827a3f-e6a4-451f-a47a-ea4b963357b8/wajajilifumogebezufijut.pdf

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