Malicious PDF — malware analysis report

Static analysis result for SHA-256 afbaf001dd190d87…

MALICIOUS

PDF

71.7 KB Created: 2021-03-03 18:36:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 22c8f3b9a8560f0cd0904590a5fb3536 SHA-1: 376dc10e642e51cd9da3f97561591d68b873a672 SHA-256: afbaf001dd190d87426c308e9614742cdbe6ef7017f90ec9623d25508e3d04f8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/award?keyword=sylvia+day+books+ranked PDF link annotation
    • http://blekrossi.ru/gewunikugigatipobukozuklm1.pdfIn PDF document text
    • http://erogan-encolumbia.site/59907071288wh7l5.pdfIn PDF document text
    • http://sorujod.22web.org/honeywell_thermostat_th6110d1021_manual.pdfIn PDF document text
    • http://muldwych.com/71698642946yfanp.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/playing_card_games_app.pdfIn PDF document text
    • http://copyrighthelpcentral.com/21613364094gc7qp.pdfIn PDF document text
    • https://cdn.sqhk.co/bamosabubesi/cHK6MNc/sportage_extreme_offroad_drive_modern_sports_cars.pdfIn PDF document text
    • https://cdn.sqhk.co/legusovej/gcdggiO/lipofepipalifizovanifizo.pdfIn PDF document text
    • https://cdn.sqhk.co/kulizuxekume/hahbifZ/15489289580.pdfIn PDF document text
    • http://lenudes.com/89480285958oj0z8.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/aghxs24/wijaxakim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420906/normal_5fd1d115c42fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487927/normal_5ffa5bebe0a3a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479923/normal_5ff9f6873dac3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://buxazub.epizy.com/aetna_better_health_west_virginia_appeal_form.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/foluzejadupenizorisaru.pdfIn PDF document text
    • http://komiguzuvare.rf.gd/awakening_the_third_eye_lujan_matus.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_off0000dc08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC08 5288 bytes
SHA-256: 43c4cef09f9ee690c7cd1e2dc74658285e71e35d73cb3489418b146a62b45155
font_01_sfnt_off0000ee1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1A 10592 bytes
SHA-256: b17c6832cb4fbb967cc22ba7fddfd32784e70e011b9d38ba076194acf2ba1273