Malicious PDF — malware analysis report

Static analysis result for SHA-256 269febce174db64e…

MALICIOUS

PDF

76.5 KB Created: 2021-03-14 10:17:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: f2509e62f83c7bbf8df6f75e349ede28 SHA-1: a834c77a60d3ebcd8a62ce13bda78550bc4ffb67 SHA-256: 269febce174db64eef84c90e20ae7d4698d82f2c98d240c488bc862679905f07
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document contains numerous embedded URLs, with one prominent URL pointing to 'dugedepap.ru', suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://dugedepap.ru/wix?keyword=what+direction+do+roundabouts+move+in PDF link annotation
    • https://cdn.sqhk.co/xegunorasu/pjaihxa/within_temptation_vocalist_name.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/piaifhg/pawipumevilivajikagopeboz.pdfIn PDF document text
    • http://fasadi.site/volewikulekasakifevejl7q4g.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/ibQNifB/midugixofugutagugaxiw.pdfIn PDF document text
    • http://aduo5.online/504672007082br3w.pdfIn PDF document text
    • http://stc-l.ru/clash_of_clans_pc_cheat_engine1f8hk.pdfIn PDF document text
    • http://tepugorotewole.medianewsonline.com/milerimafemiwu.pdfIn PDF document text
    • http://baltika-trans.ru/97494296096i3ubo.pdfIn PDF document text
    • http://amsidgi.xyz/guvijirgvr73.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/canara_bank_account_transfer_form.pdfIn PDF document text
    • https://cdn.sqhk.co/munoforifuso/hijWAgf/gameboy_sp_charger.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxamomajil/jdeieLA/90165373166.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/c85c6c5f-6e3f-4104-a48d-9bbbbcc03692/45072149749.pdfIn PDF document text
    • http://xakazasaravi.onlinewebshop.net/monev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/674c12fe-96ce-4589-b8ad-dae6c9f1a193/80126301051.pdfIn PDF document text
    • http://kaloruligot.onlinewebshop.net/12427219152.pdfIn PDF document text
    • https://1923692e-f727-4f58-80a8-3583160180e3.filesusr.com/ugd/c4ccc4_a93d5f3038ba4ebf9c2c19180f089517.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/87c0c74f-dc00-4f32-9b3b-88f520fa4136/coast_guard_staffing_standards_manual.pdfIn PDF document text
    • https://2c5a832e-93c4-4ab0-bef0-969ef348d747.filesusr.com/ugd/cc5daa_37335ba315534772ba713cb028351d4b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d3cf7cb-66f7-473a-9516-fcb35893100b/kawagoxawakugiviwan.pdfIn PDF document text
    • https://f4b9ed98-44c1-44e6-9966-d9817cd43de7.filesusr.com/ugd/9ced5d_8e56065365254827ae95cab54b6513f6.pdf?index=trueIn PDF document text
    • https://bfb79b04-db4d-4c54-a74a-4733ff68ceb9.filesusr.com/ugd/11291b_db64f329c6ab44639abe99fd72361494.pdf?index=trueIn PDF document text
    • https://ff0b3df2-dc61-4aeb-9024-93fa9b5bc175.filesusr.com/ugd/aa14a9_44caca5e6be04a0b89747659a514b50e.pdf?index=trueIn PDF document text
    • https://28481333-1ef2-46fb-8ebf-d56c3f24acbc.filesusr.com/ugd/314c35_4f743ee03ead4c88994697fb64f9d1a3.pdf?index=trueIn PDF document text
    • https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_f59337d4ecfc4170be8832d51ebd1c14.pdf?index=trueIn PDF document text
    • http://faxiruvud.myartsonline.com/dorian_gray_painting_chicago.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_off0000edba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBA 5360 bytes
SHA-256: 0c8faa950f3c68d5d7fcf1a0101a0284d6e9d5def428f58121059c2a394cd09e
font_01_sfnt_off0000ffd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD4 10808 bytes
SHA-256: f188648aa6242c26f7894e77ee99eb9fcf6eb57bcc715b46a41dd33fa7deed8b