Malicious PDF — malware analysis report

Static analysis result for SHA-256 c404b239db22d4bc…

MALICIOUS

PDF

71.9 KB Created: 2021-02-16 08:15:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 32db421163b27657ab8ce942f4391e8c SHA-1: 324ef2c09a7228106b39f2191f6fe8b03ca1d125 SHA-256: c404b239db22d4bcafd19905884e3df9f8b3d35e8f09c79708bbbe33bcdf8504
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/wix?keyword=free+fire+hack+diamonds+and+coins PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4483070/normal_5fdea76412ed6.pdfIn PDF document text
    • http://pemovixo.iblogger.org/accounting_job_interview_questions_and_answers_examples.pdfIn PDF document text
    • http://punubukotulanes.22web.org/xakijirodiw.pdfIn PDF document text
    • https://cdn.sqhk.co/fowurona/jggeDhP/vetunubinixagerur.pdfIn PDF document text
    • https://cdn.sqhk.co/relulapezele/hjfgfja/gupofofuzosariwuxijukiji.pdfIn PDF document text
    • http://tamekawarol.66ghz.com/lowercase_cursive_handwriting_worksheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366354/normal_5fed1edb34b41.pdfIn PDF document text
    • http://sijazoge.iblogger.org/rcm_full_form_name.pdfIn PDF document text
    • http://fukoramilani.22web.org/sisulu.pdfIn PDF document text
    • http://metazexepajesen.22web.org/chennai_express_movie_480p_filmywap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379718/normal_600862dcbb4dc.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/wusigipufuvowix/classic_wow_warlock_leveling_guide_icy_veins.pdfIn PDF document text
    • http://medomapex.epizy.com/bring_me_to_life_drum_cover.pdfIn PDF document text
    • http://safilizejodi.epizy.com/trex_decking_installation_guide.pdfIn PDF document text
    • http://fosadexovoz.epizy.com/xivelusel.pdfIn PDF document text
    • http://zekafoweratum.epizy.com/beko_washing_machine_10kg_manual.pdfIn PDF document text
    • http://dawutanarav.epizy.com/sandisk_clip_sport_plus_not_turning_on.pdfIn PDF document text
    • http://xalimelipuv.rf.gd/performing_artist_adalah.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d37f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37F 5248 bytes
SHA-256: 5ed6bf7c24b372ea5fd32e404a6fd448d9a687cf2cd62b7a9915af15ed001923
font_01_sfnt_off0000e529.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE529 2092 bytes
SHA-256: 13678a14b930e6d42e11b2ac41b13981c2c7f5938cc30cfb194ad51886f1f1dd
font_02_sfnt_off0000eece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEECE 10376 bytes
SHA-256: b7badafc45770db69717ab575b7336a2f785bc103cb111b250ec99c85b18bc56