Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa05d508082b65d6…

MALICIOUS

PDF

67.4 KB Created: 2021-02-16 04:30:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9970ce00cc3bf211761780d1790422e2 SHA-1: 2232d0a16cbb9112fb6c430c29f34582fedbb03d SHA-256: fa05d508082b65d68aa209ec73cb583ff2bd60c67c86d564f820ceb249d9b193
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://jacksth.ru/wix?keyword=adding+and+subtracting+matrices+worksheet+pdf PDF link annotation
    • https://cdn.sqhk.co/potasuregoz/iiifEgf/zen_basketball_scoreboard_free_download.pdfIn PDF document text
    • http://verification-help.business/ada_guidelines_diabetesxa83z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368984/normal_5fe4bd90a6bfb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393631/normal_5ff569c55b0e5.pdfIn PDF document text
    • https://cdn.sqhk.co/tepikipo/jeoptrR/learn_languages_with_music_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465691/normal_5fde8646a89a3.pdfIn PDF document text
    • http://adyga.site/venuwamaxediliwagn2955.pdfIn PDF document text
    • http://kedolopogiwef.iblogger.org/kidikosaxubepewufulisiro.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxofidipo/ephjegd/golf_clash_clubs_for_tour_5.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/gozifep/85490067543.pdfIn PDF document text
    • http://tukutuxobolekub.epizy.com/39350427582.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/93828726542.pdfIn PDF document text
    • http://kevusej.epizy.com/menurusilonimenula.pdfIn PDF document text
    • http://molumazorok.rf.gd/balam_pichkari_lyrics.pdfIn PDF document text
    • http://nujemapamonaj.epizy.com/depreciation_expense_equipment_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/sojamasixoriw.pdfIn PDF document text
    • http://gurimexuma.epizy.com/lilapexasuxegubinoru.pdfIn PDF document text
    • http://nezenomawaza.epizy.com/bully_pc_completo.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/adxl335_accelerometer_datasheet.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_off0000c890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC890 5820 bytes
SHA-256: da9232386c608e923398a1511cd6b2fbd7477078b15f08420def8d9eccad5181
font_01_sfnt_off0000dc50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC50 10488 bytes
SHA-256: d4c6a11b24bf435b5960a9ab40253880da013f35999ea3e06290296e3b0d2e1e