Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0cc926861a4677e…

MALICIOUS

PDF

68.9 KB Created: 2021-01-07 03:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 1fc990d6ff91efb15e9a1330847bb31d SHA-1: c51de06e80c9d233e42496b2fe6f9c2e0e825bdd SHA-256: f0cc926861a4677e003da3e64975bd28317360b1e6ed54968e3e26039849ea5f
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://trafftec.ru/wb?keyword=basketball%20champions%20league%20final%208 PDF link annotation
    • https://kiwiwutirove.weebly.com/uploads/1/3/4/7/134707888/bavakegalasowuxir.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/fAiiIja/mizuke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407793/normal_5f932e0ada6b3.pdfIn PDF document text
    • https://revunisukigi.weebly.com/uploads/1/3/4/8/134849871/dodowariwavilesod.pdfIn PDF document text
    • https://cdn.sqhk.co/wejupexuput/jaiaiji/x_core_sprinkler_system_test.pdfIn PDF document text
    • https://cdn.sqhk.co/fofasafiwi/fifLeCZ/logo_quiz_answers_level_6.pdfIn PDF document text
    • https://sewuvemap.weebly.com/uploads/1/3/4/3/134377394/3940605.pdfIn PDF document text
    • https://cdn.sqhk.co/latipizi/igid2gj/56216943627.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/jbIhcha/29915830189.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421768/normal_5ff656a084bff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424982/normal_5fd7916ac4022.pdfIn PDF document text
    • https://nusoselif.weebly.com/uploads/1/3/4/4/134470887/6252967.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443357/normal_5fba9b8125fbb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401985/normal_5fe8517870422.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/99311839926.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_off0000cdb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDB2 5780 bytes
SHA-256: 800f2825fc9594f6890b2d33b40514a73720079f079997bd99f0b53e56343a1e
font_01_sfnt_off0000e13e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13E 11572 bytes
SHA-256: 7ff9257baa70d45aede02b162b4fae50297a66d35bd7b627bcf651ea975fc360