Malicious PDF — malware analysis report

Static analysis result for SHA-256 9069e64a14da5337…

MALICIOUS

PDF

66.5 KB Created: 2020-12-21 06:07:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 334c89ee651c5b998748cdc23462a873 SHA-1: 667c9476233a098d85dcf175cdeab732d7fe44a1 SHA-256: 9069e64a14da5337affe652b932dd0fda47f50cfb9067f32d4995ebc4033de6b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a printer manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/123?utm_term=brother+es2000+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368742/normal_5f8f7d5b75260.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373788/normal_5fbb76472aa6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393755/normal_5fb4c7025b82f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f87e3bf15bfc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fcdfcfaecb86110b1356bd8/t/5fd6c18372b1137fa9846959/1607909764779/car_games_free_in_jio_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/181b3a87-4d93-4bd8-95be-463d1d511069/rs422_vs_rs485_difference.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23d2ab22-b104-4eb5-95f0-06ce0027a461/62132353191.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c9ad2aa-dfaa-4d58-b23f-b11870b523c1/franciscans_of_the_primitive_observance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2dcbb850-fe30-41f8-9e0e-6d4ed37cc8de/words_with_tend.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25ea45b2-1914-4fbd-8db2-bb599c245c31/rpcs3_metal_gear_solid_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f30ed74a-c88a-430f-b53d-8f25508d80c3/kowababamifisopo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6cd63570fb44d1fb4d6a/1606380759411/96281203240.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_off0000c7a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A9 5248 bytes
SHA-256: 4cd073c7c25fab48ea53e0d3f41cb41dd543332b6a4d7414bb5689f9219bffff
font_01_sfnt_off0000d950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD950 10536 bytes
SHA-256: 5e4a81edd67fe959e985da62ae01f9c4f39fae396b089ff85e4602541210c7b9