Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac5b557f47777b1…

MALICIOUS

PDF

61.2 KB Created: 2021-02-06 02:59:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e61df2af7841bce19fcd0d6de602acec SHA-1: 485477dceb67a8b21f8a2c57aa95073b541f5372 SHA-256: 1ac5b557f47777b156285a91d2205f429f416cb5890951b70afc8a218261b759
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://druttle.ru/wb?keyword=2%20weeks%20notice%20full%20movie PDF link annotation
    • http://dajinanumiki.iblogger.org/pexamanemopafixadazu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375518/normal_600e1d119439a.pdfIn PDF document text
    • https://wimofitadaxota.weebly.com/uploads/1/3/4/3/134362004/5802572.pdfIn PDF document text
    • https://cdn.sqhk.co/tuledapozato/b9RVii4/ritiwadojopetukozipupaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421199/normal_60162871d975d.pdfIn PDF document text
    • https://revogofoti.weebly.com/uploads/1/3/3/9/133999152/zakugowewis.pdfIn PDF document text
    • https://cdn.sqhk.co/vabolepibe/fjhz0ic/viral_tiktok_starbucks_drinks_sweet_cream.pdfIn PDF document text
    • https://tujupanex.weebly.com/uploads/1/3/5/3/135333196/348ccc27882a4da.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/jedgejf/assistant_stage_manager_jobs_nyc.pdfIn PDF document text
    • https://linerebe.weebly.com/uploads/1/3/0/8/130813546/dijibe-sopurijegowomul-sasisepemogolub.pdfIn PDF document text
    • https://texexodova.weebly.com/uploads/1/3/0/9/130970004/vidovomexajal.pdfIn PDF document text
    • http://bujupete.iblogger.org/nexebimaropiritam.pdfIn PDF document text
    • https://marizezibafive.weebly.com/uploads/1/3/4/8/134865590/vepukegawamaverej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mudivakerimenog.epizy.com/free_email_bridal_shower_invitation_templates.pdfIn PDF document text
    • http://lafonariki.rf.gd/94907396217.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_off0000b462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB462 4976 bytes
SHA-256: 83c7617a9c3e0452ec51944a8ae8e0c2f33f16ede744638bbbb1ffb7995757ad
font_01_sfnt_off0000c56a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC56A 10136 bytes
SHA-256: 5ae1d23e2bc1f4238f275e033b3704d9dd7f80a7355cffc7c0997c2c2f1baa5f