Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2cf7ae5e26489d4…

MALICIOUS

PDF

71.5 KB Created: 2021-02-26 19:15:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 35051187a51417861d9fec00fc279200 SHA-1: 5e561c8923970ef33a84e97e362066666933ca06 SHA-256: a2cf7ae5e26489d405e2b96e4a181c76005ddf4b91542763d23e7645ae30f76b
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://xezojetit.ru/award?keyword=unravel+me+lyrics+tokyo+ghoul PDF link annotation
    • http://tublitalia.fun/12313151716bnk5e.pdfIn PDF document text
    • https://kowexemi.weebly.com/uploads/1/3/1/8/131872048/4937150.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495240/normal_60268f892cbb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500897/normal_600ed24976010.pdfIn PDF document text
    • https://kibalenujodoziz.weebly.com/uploads/1/3/0/7/130776895/xiniwobogop.pdfIn PDF document text
    • https://gilasagajeradek.weebly.com/uploads/1/3/4/6/134632792/7448312.pdfIn PDF document text
    • https://pavexoseg.weebly.com/uploads/1/3/5/3/135315086/0340eb9caf9.pdfIn PDF document text
    • http://copyrightshelpscenters.com/clasificacion_de_grannumymxcf.pdfIn PDF document text
    • https://fuwamelewupo.weebly.com/uploads/1/3/4/1/134131589/9641073.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417990/normal_5feee4f00e743.pdfIn PDF document text
    • https://jinafoxibufesow.weebly.com/uploads/1/3/5/2/135293268/f2954f.pdfIn PDF document text
    • https://giligigava.weebly.com/uploads/1/3/4/4/134494785/kivejukifiwi.pdfIn PDF document text
    • http://spindlndou.space/coenzyme_q10_liquid_form_costcotgtgs.pdfIn PDF document text
    • http://tesocoin.online/nikon_d5100_price_in_malaysia_second_handig4ob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://modunatotuw.epizy.com/percentage_increase_decrease_word_problems_worksheet.pdfIn PDF document text
    • http://lewuxiboru.epizy.com/17121727431.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_off0000dbba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBA 5428 bytes
SHA-256: cae8240bb949aa7b99d4bb02630e31dd48bdd9ea985bfe7c3f3919643690eea0
font_01_sfnt_off0000ee15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE15 10240 bytes
SHA-256: c607ca7d721a020c3d0b96a7dc6d94168a6ee365b6966881a22c6d8ede0f8e2a