Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9206f610b6c7bb…

MALICIOUS

PDF

80.1 KB Created: 2021-03-12 02:51:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 25054a960ba8dcd0ec551ac494cce1f4 SHA-1: 2928fb402492fe674c12f0e820c4e778dbe364f3 SHA-256: eb9206f610b6c7bb1d250b30352ceae0ab1ed9e0c0c7cffe5e9bf7cbfae0ada1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/award?keyword=blizzard+beach+map+2020+pdf PDF link annotation
    • https://cdn.sqhk.co/xomakonezema/idjcPbN/75569439494.pdfIn PDF document text
    • https://cdn.sqhk.co/sunaxidida/zmhfoPO/city_racing_lite_hack_mod_apk.pdfIn PDF document text
    • https://makigomeludawuk.weebly.com/uploads/1/3/4/7/134748455/3885290.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/ohjqfZz/xunikuxekaramo.pdfIn PDF document text
    • http://dmgameplan.com/93051096099ouua.pdfIn PDF document text
    • https://metuwudoguwo.weebly.com/uploads/1/3/5/3/135323448/da8dc5f.pdfIn PDF document text
    • https://welaxulisura.weebly.com/uploads/1/3/4/0/134042468/ec749e.pdfIn PDF document text
    • https://tipolapuponawog.weebly.com/uploads/1/3/2/6/132696210/najevokuweti-mofosunatevep.pdfIn PDF document text
    • http://detonic-buy.website/36197097272w7h24.pdfIn PDF document text
    • http://zikuwojanubeg.iblogger.org/fativinutib.pdfIn PDF document text
    • https://cdn.sqhk.co/xotolodi/jgjjfat/usa_today_games_and_puzzles.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wafogaz.rf.gd/48669792098.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a1bde71-d9a0-48e1-b1dd-991c6f09cf13/xonakuxewuzeselonuvos.pdfIn PDF document text
    • http://zisilorelane.rf.gd/5949773665.pdfIn PDF document text
    • https://200c4c3d-185b-4246-b99f-f40cd7065c99.filesusr.com/ugd/3ed902_d2638d8a9f4f402896d651af4ab95c21.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed5516dc-bf31-4df0-bc3e-0007f8c6abff/viwuzeti.pdfIn PDF document text
    • http://sogisad.rf.gd/66601502071.pdfIn PDF document text
    • https://5e024257-ca51-40df-b6b5-a3104c7b7124.filesusr.com/ugd/97368a_c9f8c14c67e948f18d2970fff62d4dc5.pdf?index=trueIn 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_off0000f997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF997 5728 bytes
SHA-256: cefe99d9b3d89ddb0ebc2375e4fa2bb857597bc4bf31d578b8fdcffbec564824
font_01_sfnt_off00010cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CF0 10968 bytes
SHA-256: 032dd3bd66cf526721f23f65568f172bf74ce6d334dd05cd2cc14502f7ee8b73

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