Malicious PDF — malware analysis report

Static analysis result for SHA-256 edded3ecd3885b7c…

MALICIOUS

PDF

74.7 KB Created: 2021-01-29 23:52:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4263b7cb9b4184d1108179620b475318 SHA-1: 27a2305e015605a165f347a95f2c778f914267fc SHA-256: edded3ecd3885b7c690a809e3665bb9da43f56d86d2d0b8fefc1e455412b9b7e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. The PDF contains numerous embedded URLs pointing to potentially malicious domains, and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic suggests a deliberate attempt to obscure the true destination or distribute multiple malicious links. No scripts were extracted, but the presence of external URIs and the link farm heuristic strongly suggest the document's purpose is to redirect users to malicious content.

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/123?utm_term=mister+in+spanish+language PDF link annotation
    • https://cdn.sqhk.co/sirojenu/jgihdN7/5417848459.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/torodeketapalotizaxazodowts9gh.pdfIn PDF document text
    • http://cardioactiveuficiale.site/2008_ford_ranger_manual_transmissionznt0a.pdfIn PDF document text
    • http://leqqurint.online/47285885915yrllv.pdfIn PDF document text
    • http://herss.space/cat_wart_removal5hofk.pdfIn PDF document text
    • http://kzrovk.xyz/siluzioxye.pdfIn PDF document text
    • http://balifruit.com/zedge_for_iphone_wallpapersdhwr3.pdfIn PDF document text
    • http://insurancesouk.com/funny_drag_racing_team_namesra7ah.pdfIn PDF document text
    • http://fuckfrsky.com/artioscad_for_mac_freeb6epw.pdfIn PDF document text
    • http://white-x.fun/xasomawudiduncr4ks.pdfIn PDF document text
    • http://agent-spv.space/bisalaxozij51jm.pdfIn PDF document text
    • http://crysety.xyz/95777512462cpsqt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nalujisutu.epizy.com/bootstrap_3_form_control_error.pdfIn PDF document text
    • http://vukefuxi.epizy.com/bomberman_pc_game_free_full_version.pdfIn PDF document text
    • http://zetipetarot.rf.gd/37545527984.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/bollywood_new_movies_free_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/nitro_cloud_to_word_conversion_online.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_off0000d8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C0 4856 bytes
SHA-256: 2859345630058efa8d6c77ee585540d2130c4b4e62454cbbf19f149deb92ecb9
font_01_sfnt_off0000e93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93D 11744 bytes
SHA-256: 4c0c775755993a329350dd6ce173ca5a04296d68251b02e698de4083bf25b83a
font_02_sfnt_off00010feb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FEB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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