Malicious PDF — malware analysis report

Static analysis result for SHA-256 67766fa5d8b39cf4…

MALICIOUS

PDF

61.1 KB Created: 2021-02-11 19:52:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f829f5950b115189dd0790bacef54560 SHA-1: f2329eab544982e68ccd2b90dc56fe6e3342d536 SHA-256: 67766fa5d8b39cf473edb723465c0ea7dccd10b24aaef97a59d2ca1079dfd4a0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wix?keyword=study+guide+for+night+by+elie+wiesel+answers PDF link annotation
    • http://copyrightsafetyhelps.com/bovujolomotebelm3xru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420470/normal_5fcf4a033294b.pdfIn PDF document text
    • https://divekoworubu.weebly.com/uploads/1/3/4/0/134017674/jizufub.pdfIn PDF document text
    • https://muvekova.weebly.com/uploads/1/3/5/3/135394778/nipujajizoj_mikaledid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367919/normal_6018355dd5c8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497685/normal_5fdc181bbfc83.pdfIn PDF document text
    • https://nolaxefipox.weebly.com/uploads/1/3/4/7/134740184/jesepubifa-dolevizu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463538/normal_5fcaa140f1265.pdfIn PDF document text
    • http://ig-mediateam.net/40919728804w7jn7.pdfIn PDF document text
    • http://quickpapp.online/video_free_fire_gameygiwf.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/21961743759xj9i.pdfIn PDF document text
    • https://doritader.weebly.com/uploads/1/3/4/8/134885844/nizekuwajosoma.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luzeparuzibez.rf.gd/battle_dress_uniform_ww2.pdfIn PDF document text
    • http://pudekixepubaz.epizy.com/pupatodekutif.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_off0000b318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB318 5604 bytes
SHA-256: f08ec76633098b0975dbccd1f0e2a10859d8dbe35dddf5a1054f43315cda7a91
font_01_sfnt_off0000c635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC635 9756 bytes
SHA-256: edb9663a9fc0485add8f7c18728709fe802cb97190f17751176efbb61e686f70