Malicious PDF — malware analysis report

Static analysis result for SHA-256 87428fcb6a1a844c…

MALICIOUS

PDF

66.5 KB Created: 2021-03-21 04:06:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 551403e2d05a3fbde837937a84b6ddd2 SHA-1: b776a31442c4c57d1a4e310199efb5c0b63ae37d SHA-256: 87428fcb6a1a844c94e2262f19adb109c2d786e7e0b42596394331c0168f8b18
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier. It contains an external URI pointing to 'ponafet.ru', which is suspicious. The document body, though heavily obfuscated, appears to be a lure related to an 'Allstate agency agreement'. No scripts were extracted, but the presence of external links and the nature of the heuristics suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

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
  • 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
  • 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://ponafet.ru/award?keyword=allstate+r3001+exclusive+agency+agreement+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416154/normal_6051cbf12861e.pdfIn PDF document text
    • http://mereritijazos.scienceontheweb.net/dikapawomutiju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486965/normal_60038bea6b310.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/rumepos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4527747/normal_602709d2e8bb0.pdfIn PDF document text
    • http://nupewijanetari.medianewsonline.com/never_stop_learning_ayman_sadiq_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459483/normal_5ff3a0c0b4d9d.pdfIn PDF document text
    • http://pakekoramiduwin.getenjoyment.net/libros_de_auditoria_forense_gratis.pdfIn PDF document text
    • http://damvglaz1.xyz/rofuzeviraplhrnn.pdfIn PDF document text
    • http://natnat.fun/sophie_s_worldloa7h.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09887588-2788-4e6d-bd65-51d3d9125921/asu_electrical_engineering_online_major_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad15425a-a8b6-4747-bdb1-c94a6f8dda86/ottlite_executive_desk_lamp_with_wireless_charging_base.pdfIn PDF document text
    • https://91ca87c2-c493-4616-adaa-fbcec45394e1.filesusr.com/ugd/6116da_c7161ceb6d0945c8a597705e9a5c4a9e.pdf?index=trueIn PDF document text
    • https://d04c2b29-3777-4fe6-aaa9-ab96f87c3324.filesusr.com/ugd/43eb95_445929a7a1274390b66cfc78d156ef3c.pdf?index=trueIn PDF document text
    • https://3e3188f7-d9e9-48da-9af6-4e6760718ee0.filesusr.com/ugd/4f7562_fad802d61baa4e01bba64c57e7cbfd49.pdf?index=trueIn PDF document text
    • http://legokejapo.atwebpages.com/cours_anglais_seconde.pdfIn PDF document text
    • https://994180ce-385f-4272-9833-4a204a825e0f.filesusr.com/ugd/ec0c41_0100d36478fa432ba33a3757835f7118.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/36cec656-79a2-4aa4-965f-2121518149ce/how_to_clear_dtc_without_scan_tool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35994cda-31f9-4989-8cf4-9f58435b83ed/five_characteristics_of_magical_realism.pdfIn PDF document text