Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82909c804d94070…

MALICIOUS

PDF

76.5 KB Created: 2021-03-30 09:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 8102a34dc2822de4d054361be55ad66a SHA-1: 22e8856f1e79a100d12b85fa87ece804b153ab89 SHA-256: c82909c804d940709c4b28f32bc183fb2580c4c24ca8e310e74c58e730c4652b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=what+does+a+car+battery+tender+do PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452372/normal_5ff8fcc1b1630.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/KxX9Jjb/30503702433.pdfIn PDF document text
    • http://radogomi.mygamesonline.org/95836588532.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/lakogagojujuwumorotifezim.pdfIn PDF document text
    • http://bagomebefekixob.getenjoyment.net/71163660127.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418973/normal_5ffc68e835043.pdfIn PDF document text
    • https://cdn.sqhk.co/sutazojawote/gXgcIjg/kiritela.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456420/normal_5fed916f38188.pdfIn PDF document text
    • http://watutuwox.iblogger.org/what_does_e01_and_f09_mean_on_a_whirlpool_washer.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/bc3b3511-e04c-48b1-b767-6d1a5c2a322d/how_many_carbs_in_dunkin_donuts_bagel_bites.pdfIn PDF document text
    • https://1ce8651a-bfbb-4b9a-b1bf-24b3b574775a.filesusr.com/ugd/ac72e0_e63f4d033bc34df1a956daa4e511463f.pdf?index=trueIn PDF document text
    • https://c301b42c-deab-4116-afcd-a09dd0728425.filesusr.com/ugd/4bb894_6a15531cd38f4098bc98beeec052b3ea.pdf?index=trueIn PDF document text
    • http://gogujigasad.onlinewebshop.net/uwc_academic_calendar_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c44b7515-79a8-44d9-aeb3-ffd519a5908c/robert_greene_laws_of_human_nature_barnes_and_noble.pdfIn PDF document text
    • http://sibopujisovutu.epizy.com/nejavasekuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8c0ba98-1145-42d1-8a88-2dc32f40915b/wajeloriveluk.pdfIn PDF document text
    • http://lobosebaj.rf.gd/zusavojetiv.pdfIn PDF document text
    • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_c492e96eda0842dbbce2e451e08d0e02.pdf?index=trueIn PDF document text
    • http://zitulogakapede.myartsonline.com/mantis_garden_tillers_for_sale.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_off0000edbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBB 5252 bytes
SHA-256: 38a1f7559aece293f3fb885ddd0d497bfa45e85b864d091ec7f6e84c53f17c37
font_01_sfnt_off0000ffa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA3 10432 bytes
SHA-256: b06b60632ad7a65e81fe2edeae132ff09a07168f699cdbd47175d5ee72bb15b9

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