Malicious PDF — malware analysis report

Static analysis result for SHA-256 326a64f46b9e7f8a…

MALICIOUS

PDF

68.9 KB Created: 2021-02-21 21:55:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 07df5ee12cb96ff5635a7240d01029e0 SHA-1: 4c255e569967cdb9d888241100b04c4e915f1699 SHA-256: 326a64f46b9e7f8a8c20eb735642c82cbe71eb26b9e2c7665fabe2ee29cd8689
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=trading+business+plan+sample+pdf PDF link annotation
    • https://cdn.sqhk.co/tivanosox/hgdMihC/rukoxatoli.pdfIn PDF document text
    • https://cdn.sqhk.co/nawovoso/f7IVjaV/nintendo_64_emulator_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fovuxugo/fhfgdtv/vutikipuzunapo.pdfIn PDF document text
    • https://cdn.sqhk.co/noluxokeruma/aia3jas/adobe_photoshop_fix_not_compatible.pdfIn PDF document text
    • https://fanesorugetefex.weebly.com/uploads/1/3/1/3/131383934/dekezevomid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412891/normal_60146df795082.pdfIn PDF document text
    • https://penuwepilaxol.weebly.com/uploads/1/3/4/7/134756509/8970757.pdfIn PDF document text
    • https://cdn.sqhk.co/runolisor/Ujjgcii/42670906488.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411483/normal_601b2fc68e979.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/KxX9Jjb/30503702433.pdfIn PDF document text
    • https://cdn.sqhk.co/rubekafux/jhgd6cm/stargazing_bubble_camp_ny.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/JRhiifW/best_free_hockey_prediction_site_in_england.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379477/normal_5fec86cd56d89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472198/normal_6004819eb14b6.pdfIn PDF document text
    • https://melozepopi.weebly.com/uploads/1/3/0/7/130775643/d83f5.pdfIn PDF document text
    • https://nalivugubogepa.weebly.com/uploads/1/3/0/9/130969323/2966428.pdfIn PDF document text
    • https://popupobapovuzus.weebly.com/uploads/1/3/4/0/134012290/6710679.pdfIn PDF document text
    • https://cdn.sqhk.co/vivepovugeli/7ijgiiC/vegevujejakurugigowe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cd40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD40 5452 bytes
SHA-256: c5cf3a8598738f833197c156c9193904ba5f48f2a6f5607e27f2db1b632b925b
font_01_sfnt_off0000dfaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAA 12212 bytes
SHA-256: e5fc59a627de0ceb6b96820e8bba60131e6c4d97f448339351e4ff6fe33d6502

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