Malicious PDF — malware analysis report

Static analysis result for SHA-256 667c697fa8a3f537…

MALICIOUS

PDF

80.5 KB Created: 2021-03-07 15:19:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 2052316cf301890dda3905d0b4fc2a4c SHA-1: e86f3e137d5494473fa0240b716f768329a376d3 SHA-256: 667c697fa8a3f537b1a3a301cfacaf376b6bc4176274be07267d12b549c00038
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a phishing page disguised as a help article. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the document's deceptive content suggest it's designed to trick users into visiting a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/strik?utm_term=how+do+i+reset+my+kenmore+microwave PDF link annotation
    • https://cdn.sqhk.co/loxufore/jaghjaF/15039550901.pdfIn PDF document text
    • https://cdn.sqhk.co/rogudokives/jchexyO/tournament_choice_air_hockey_table_pucks.pdfIn PDF document text
    • http://silkhfig.bid/american_pie_reunion_movie_in_tamilhf488.pdfIn PDF document text
    • https://cdn.sqhk.co/kupejabel/gUhazic/super_sergeant_shooter_2_unblocked.pdfIn PDF document text
    • http://wumomotetidofe.getenjoyment.net/49690777227.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/iagc8Kn/33557596179.pdfIn PDF document text
    • http://ritegifufefut.scienceontheweb.net/danoduwovegepunoxixarog.pdfIn PDF document text
    • http://copyrighthelpcentral.com/fanolupagudokexugijxti4f.pdfIn PDF document text
    • https://cdn.sqhk.co/wejawujagi/cidggZs/pba_tournament_bracket.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/jbia3gf/95661179103.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/eDow5tL/titan_quest_immortal_throne_conqueror_build.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwebobit/3BXf7jb/84207237990.pdfIn PDF document text
    • http://masito.space/dibixexemitoniluvosum6n.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/ggXqGhj/hepatitis_b_symptoms_after_exposure.pdfIn PDF document text
    • https://cdn.sqhk.co/lalamiteliw/jcgcieY/53751376001.pdfIn PDF document text
    • https://cdn.sqhk.co/wusakituzu/jf3ggTQ/59967629440.pdfIn PDF document text
    • https://cdn.sqhk.co/gixobujikelu/Pjcjdhf/slow_motion_video_converter_software_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c17fa6d9-f9f9-46d7-b731-96e153aa62de/94419589445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/077864a6-e65a-4f2a-a206-75b2685a61cd/what_is_a_dream_upon_waking_the_creature.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65ca1800-f4c1-4db7-a77a-3e80c289617f/hague_watermax_water_softener_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc32a2b5-b15f-4a4c-b513-efb9a01638f1/samsung_bd-j5700_manual_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e56c0c79-15db-4435-a05b-0ada22bf5da1/strange_case_of_dr_jekyll_and_mr_hyde_movie_2017.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_off0000fd59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD59 5332 bytes
SHA-256: 2f3bc27a955c69ca7eff88740070033592c1230309b05965a128f684da145500
font_01_sfnt_off00010f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F80 10780 bytes
SHA-256: 1c855c76d6342c94c68accb020e2093174116c5436d32eeb13d4ea46231a1fa9

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