Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ebdd66b75f0e120…

MALICIOUS

PDF

73.3 KB Created: 2021-06-12 06:36:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: a7de84960f8e2db30e493a85c6e80849 SHA-1: 92a216e2480f8d89a60de097a7ecd8f31caae7ff SHA-256: 9ebdd66b75f0e1204fa4d3d8e1565175f9c5d92d9ec1510aaeea7344b6385492
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. It contains numerous embedded URLs, with a primary suspicious URL being https://drafthe.ru/pbw?utm_term=rangde+telugu+movie+torrent. The document body, though heavily obfuscated, suggests a lure related to movie torrents, aligning with phishing or malware distribution tactics. No scripts were extracted, but the PDF structure and embedded links strongly indicate malicious intent.

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://drafthe.ru/pbw?utm_term=rangde+telugu+movie+torrent PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478685/normal_603eb1a4d7ada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367656/normal_6052adfedc2a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367687/normal_606e21121cec0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403404/normal_6015db0e292c1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://togiwuvoze.pbworks.com/f/87828533159.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b1cf8b6-d8db-426b-bf7e-29265eb01087/garmin_405_watch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35d04928-096e-463b-98ee-a350fc50b497/2000_kawasaki_prairie_400_4x4_for_sale.pdfIn PDF document text
    • http://legesir.pbworks.com/f/html_css_menu_bar_templates_free_download_responsive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/930bcbfb-8083-47cc-8b73-92e95d6d7032/kibadimowi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa14dd06-75c7-493a-92db-f16ab3b8675f/is_geometry_dash_free_on_steam.pdfIn PDF document text
    • http://kimotamiju.pbworks.com/f/73506981369.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/374f3836-b7dc-484f-9f3a-d5ecd9c091ad/how_to_write_a_good_tribute_speech.pdfIn PDF document text
    • http://ziriwuru.pbworks.com/f/81611337927.pdfIn PDF document text
    • http://zuwofig.pbworks.com/w/file/fetch/144954153/76717884711.pdfIn PDF document text
    • http://xoxafepapesu.pbworks.com/f/wings_of_fire_rainwing_icewing_hybrid_names.pdfIn PDF document text
    • http://marutipug.pbworks.com/f/menefet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e614f023-9d8c-4520-a246-be5f55f1b2ba/bostitch_rn46_roofing_nailer_manual.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_off0000e380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE380 5032 bytes
SHA-256: 843957081a9e516bc5d1868f772cf829c9e5339176a4df7cf035af806fc61964
font_01_sfnt_off0000f497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF497 10476 bytes
SHA-256: 573f313fdd51ed80941651f4acc003815995d8d7e36b9714d88539925beb8610

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