Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f511bed9e0dd03e…

MALICIOUS

PDF

72.7 KB Created: 2021-03-06 00:40:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9cf55610e490ab5dea49b1fe4950b9dd SHA-1: 07eaf22a8aba930930e632d67eeb804d172fd512 SHA-256: 3f511bed9e0dd03ef53656bb61ed598f1ce8a2f4900ddc24700e930e22a416fc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://baarspo.ru/award?keyword=polaris+trailblazer+250+carburetor+hose+diagram PDF link annotation
    • https://wibakaxidame.weebly.com/uploads/1/3/2/7/132741334/0b51d6de.pdfIn PDF document text
    • https://cdn.sqhk.co/jovojatubo/d1TUkgj/super_mario_bros_1_adventures.pdfIn PDF document text
    • http://goladelexugezi.sportsontheweb.net/32079744438.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376852/normal_602f25d797408.pdfIn PDF document text
    • http://sozaxesugoj.mywebcommunity.org/bedinemigefopir.pdfIn PDF document text
    • https://zowimebewira.weebly.com/uploads/1/3/1/6/131606727/javuro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374708/normal_6029edd11b2d0.pdfIn PDF document text
    • https://cdn.sqhk.co/wazuzofi/hdhjaCN/97040043869.pdfIn PDF document text
    • http://nefozufovi.scienceontheweb.net/do_you_soak_wood_chips_before_smoking_electric_smoker.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496014/normal_6025edfbdbe36.pdfIn PDF document text
    • https://fonekukiko.weebly.com/uploads/1/3/5/3/135393218/20721eb9ac9647.pdfIn PDF document text
    • https://femezusuf.weebly.com/uploads/1/3/1/6/131606597/6ce2278737643a.pdfIn PDF document text
    • http://zukirudon.mypressonline.com/how_to_cope_with_bpd_mother.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/12058244777.pdfIn PDF document text
    • http://javaxirivibewi.mygamesonline.org/13227618170.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483070/normal_5feb4ee419ac7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wumafopid.onlinewebshop.net/53395320942.pdfIn PDF document text
    • http://dowuvoduwitovos.atwebpages.com/11855459844.pdfIn PDF document text
    • http://manosotidokef.myartsonline.com/lutodapalewagiworol.pdfIn PDF document text
    • http://kewevagisugimuw.onlinewebshop.net/why_does_my_sony_sound_bar_cut_out.pdfIn PDF document text
    • http://xemunebo.atwebpages.com/tuvipifisot.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB8 5944 bytes
SHA-256: 0abf32d660ee7c5a440bf34a809887aea9e29efced220a3fff48188c1dd274cd
font_01_sfnt_off0000f1cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CC 10336 bytes
SHA-256: 5cab81ffdcb02d07a73fecd66a9d88a9ac992608f75ec4434e165f5efa8042fb

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