Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b9f10d60c90a4bf…

MALICIOUS

PDF

68.8 KB Created: 2021-02-25 23:41:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b6486875e82ceaae12b8cb103dbac8b5 SHA-1: 3eff03e2091c15fb2e586e1d7819a59217a5c0e8 SHA-256: 6b9f10d60c90a4bfc2ceee5d8125b9763f5fe05371b00ba0a65ec706aec60b13
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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
  • 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://seumenha.ru/wix?keyword=play+vulpin+adventure+2 PDF link annotation
    • https://cdn.sqhk.co/kewesowovim/bwDigUC/9886144951.pdfIn PDF document text
    • https://cdn.sqhk.co/zapimafe/bshgjcj/lolanu.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/32809843651.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/62830132361.pdfIn PDF document text
    • https://bopunesarikimar.weebly.com/uploads/1/3/1/4/131453984/mewutopijapijot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467322/normal_5fdf018f21065.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496824/normal_5ff51438461e7.pdfIn PDF document text
    • https://cdn.sqhk.co/keliziniw/b4Aihjd/zatipowegebetujaxa.pdfIn PDF document text
    • https://cdn.sqhk.co/zivunegas/fiuzojc/animal_evolution_phylogenetic_tree.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/GiiiCWe/battle_souls_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459481/normal_5ffe1da23ba60.pdfIn PDF document text
    • https://bavoramexur.weebly.com/uploads/1/3/5/3/135326869/sixudemigerif-gaseluzi.pdfIn PDF document text
    • https://vinipuzi.weebly.com/uploads/1/3/0/7/130776781/botusaju.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/hi1klie/wuxifidomijowidexasidir.pdfIn PDF document text
    • https://lozepexowazabi.weebly.com/uploads/1/3/1/4/131409761/9129390.pdfIn PDF document text
    • https://fuwamelewupo.weebly.com/uploads/1/3/4/1/134131589/widobekexebutajaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nununad.myartsonline.com/xufabedinekukada.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_off0000d23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23C 5072 bytes
SHA-256: 592776b6fc3a99ca2c480b0ea0342e7d1785f73776cd0b603fdc9b21d988048e
font_01_sfnt_off0000e39b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39B 10212 bytes
SHA-256: ffd6624a9e5c95059290b2e8c6e9edf8b04d515b25156c5ded08455d08b7c468

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