Malicious PDF — malware analysis report

Static analysis result for SHA-256 6347f3ce6deec9e1…

MALICIOUS

PDF

70.7 KB Created: 2021-02-27 06:32:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: b552c1d84cfaf4c073397f5c4c5127d0 SHA-1: 5a91e3855cea219c9e734ba0f40047aae104ec09 SHA-256: 6347f3ce6deec9e1a79625b8c457ab0a125e066da134c6cc3cec3d9d0f56b7bd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://vilenefex.ru/award?keyword=the+unwanteds+movie+cast PDF link annotation
    • https://cdn.sqhk.co/zurefaxenov/ZJ5Gx0u/gagekuvuwinupufasojitu.pdfIn PDF document text
    • http://appless.space/what_is_harry_potter_book_1_aboutc3te4.pdfIn PDF document text
    • http://fruittea.space/67060727153g9imu.pdfIn PDF document text
    • http://alexandreablog.com/savexijukofebolatif99cnr.pdfIn PDF document text
    • http://logvoz.ru/59367181344m9vh5.pdfIn PDF document text
    • http://uose.xyz/piguvupeverazudum108q.pdfIn PDF document text
    • http://tryraisins.pro/16776944367y90pr.pdfIn PDF document text
    • https://ranenowubugipo.weebly.com/uploads/1/3/4/0/134040983/lowisotir-sogoke-wasedij-mutipefowowa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421940/normal_60132b666d66a.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/AjdhhXp/fire_and_glory_ministry.pdfIn PDF document text
    • http://fineagencyy.com/nixon_the_sentry_ss_star_wars_watchv66zs.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/lemerisinivum/2877294003.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/69417340979.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/zeragidoxufarasorugu.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_off0000d8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B9 5152 bytes
SHA-256: 634c3698025f18579a74d233766acf49a8894bea3e34a00fd883f8e88e027f8b
font_01_sfnt_off0000ea36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA36 10752 bytes
SHA-256: eda28881d889182a6519e2f40b63895718a8a6b20dc7ec73c080b4c24c575c87