Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42a689dd8fdfd19…

MALICIOUS

PDF

76.4 KB Created: 2021-02-13 01:33:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a54291a4ad00304c18b6d9486f6dbe0c SHA-1: c259c3e03707c4820a736bbb4ad2221b8b205dd1 SHA-256: c42a689dd8fdfd197efeda482c1f7ab76cd2f9accdacc7b7e7fc0fec53b27717
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=stock+technical+analysis+book+pdf PDF link annotation
    • http://getakabawi.22web.org/wosozeka.pdfIn PDF document text
    • http://reawont.online/bayonetta_2_weapons_guidemc7am.pdfIn PDF document text
    • http://detonic-buy.website/996933136363qgjx.pdfIn PDF document text
    • http://supermagazforsale1.xyz/zezedofodubenifugb3pbt.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/S0HjbGy/36856591245.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/hai56yv/fofumirovetaluxa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450746/normal_5fe4ca4cdfb69.pdfIn PDF document text
    • http://tramlaweq.online/fawoniv8uyn.pdfIn PDF document text
    • https://cdn.sqhk.co/xezexasag/gjgggls/gonumumozufewesu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417986/normal_601676fcb6471.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481673/normal_6026283a66f95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452386/normal_601f31a9a7765.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pemisikozawefa.epizy.com/wegenugi.pdfIn PDF document text
    • http://tomenederixi.epizy.com/76308853630.pdfIn PDF document text
    • http://tokavasetalan.epizy.com/donation_letter_template_word.pdfIn PDF document text
    • http://sojizodujibibo.epizy.com/saxodisojux.pdfIn PDF document text
    • http://viputedijanoxoz.rf.gd/sleeping_bag_tog_rating_guide.pdfIn PDF document text
    • http://gofosuxubajo.epizy.com/integers_word_problems_worksheets_grade_8.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_off0000eb05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB05 5556 bytes
SHA-256: ff7b32a27966c510bbc31684ffea76be862b1690c501166c5b08bf1bf6f178f7
font_01_sfnt_off0000fdf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF2 11396 bytes
SHA-256: 2d1cb53d78069f2f0484af402c298291f756a18b0f414ddf7bba1d249c8920c2