Malicious PDF — malware analysis report

Static analysis result for SHA-256 351d9160adaefb6d…

MALICIOUS

PDF

77.1 KB Created: 2021-04-03 16:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fdb6684a51a7441c97a220bc7621340f SHA-1: d6767a2161cc90c61d8c62a92052c5bd01e3e8f5 SHA-256: 351d9160adaefb6dec6385f5a39a0886d061a0f77b6c77e8d50c6e30b47ed253
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and contains an embedded URI pointing to a suspicious domain. The PDF structure and embedded content suggest it is intended to deceive the user into clicking the link, which is a common phishing tactic. No scripts were extracted, but the PDF itself contains malicious elements.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://midufefew.ru/award?keyword=cabinet+minister+of+meghalaya+pdf
    • https://cdn.sqhk.co/letarezetap/CtjdgtM/fast_money_halftime_report_cnbc_fix.pdf
    • https://cdn-cms.f-static.net/uploads/4403816/normal_605dce14d0757.pdf
    • https://static.s123-cdn-static.com/uploads/4450517/normal_5ff8c78dbf6d7.pdf
    • https://cdn-cms.f-static.net/uploads/4466408/normal_6045b95096a2e.pdf
    • https://cdn.sqhk.co/sobupepokor/N4Dgggj/samsung_music_player_buy_online.pdf
    • https://cdn-cms.f-static.net/uploads/4405194/normal_5fd825b107117.pdf
    • https://static.s123-cdn-static.com/uploads/4503767/normal_5fe35a620aeb7.pdf
    • https://cdn.sqhk.co/tiwumixe/Z7GVibQ/kanitorajode.pdf
    • https://cdn.sqhk.co/ganuniwiku/3mjekhh/lekopaxefaxitemazuvefug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f608bf75-187c-4b28-9621-af925c05c2b6.filesusr.com/ugd/05e3ad_5caac4d3038e43f2b5e070c65aee585a.pdf?index=true
    • https://uploads.strikinglycdn.com/files/2109b3d0-b011-4ba8-af22-60354a6cb77c/99181231637.pdf
    • https://3e1ae61b-6b68-46dc-8a90-d1c7a5b9f91c.filesusr.com/ugd/b8bbd7_d70eea02e4d34d9d8f5a75482e55a34d.pdf?index=true
    • https://s3.amazonaws.com/votawawo/nafuwuzezisanuriwetino.pdf
    • https://s3.amazonaws.com/donarepemi/51491232226.pdf
    • https://uploads.strikinglycdn.com/files/584b3c42-1629-459a-a49d-d4a4b6db603d/wing_chun_techniques_for_beginners.pdf
    • https://6d251753-49d0-4f5b-a278-10ed1cacc9d0.filesusr.com/ugd/5c139a_bc053939d3404b9082ea1f16797be17e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/01412dd1-53f7-4651-a2ce-f63b4c734c55/what_is_the_definition_of_liminal.pdf
    • https://uploads.strikinglycdn.com/files/a9c0a0aa-5c10-4c73-b5f2-055cc80543ae/manhattan_preps_5_lb._book_of_gre_practice_problems.pdf
    • https://s3.amazonaws.com/wibadinavosunom/89752877181.pdf
    • https://uploads.strikinglycdn.com/files/25720f84-696d-4f00-a198-75dab0125e1c/75162688420.pdf
    • https://6754c94d-8795-460a-880d-d127bb37d4d4.filesusr.com/ugd/2383dc_7603a70fca954e0fa9fe5576018fbe89.pdf?index=true
    • https://uploads.strikinglycdn.com/files/cba00e1b-127a-408d-8a39-b72fe726e6f7/lexumijeberorumaki.pdf
    • https://5b0e1d79-1acc-45ba-a965-31015372eee8.filesusr.com/ugd/67f5f7_483511af96434f18a997f468c8672f69.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed2c.bin
bcabcf774364a95f8e1cda2eeb1df3072a958ae767d09b54d527328a0af2d368		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED2C 5600 bytes
font_01_sfnt_off0001000a.bin
b3aa9230718d4de3eeb78593d7f516d3d161a7f58805b07d48d4635d098bac06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1000A 10868 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.