Malicious PDF — malware analysis report

Static analysis result for SHA-256 464577813f094501…

MALICIOUS

PDF

89.9 KB Created: 2021-03-17 00:40:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c1b4951dabe2ea10d3125547faf5e7 SHA-1: 9aaaa3d254f8925f28ca02eef378ac8d5de36bc9 SHA-256: 464577813f094501016085d70c702c4096de7ece1cf7b4a0285c83c5c02c0026
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URI and document body suggest a lure related to watching movies online, which is a common phishing tactic. The presence of multiple unknown URLs further supports the phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://zajinet.ru/wix?keyword=watch+anchorman+2+online+free
    • http://expressday.online/sakawofawiwajutiwikaevv.pdf
    • http://innov-cis.net/cuchillas_desconectadoras_tripolarese2sel.pdf
    • http://probkin34.xyz/351349676473zlh4.pdf
    • http://retys.space/4022274343iwccv.pdf
    • http://blu-ital.space/the_one_thing_inxs_chords4pax3.pdf
    • http://verenica.net/how_to_solve_symbolic_logic_problems8prob.pdf
    • http://carishr.com/cant_remember_password_for_gopro_hero_31kwlw.pdf
    • http://lovemecompletely.com/tikegose20j5.pdf
    • https://static.s123-cdn-static.com/uploads/4407781/normal_5fe4868e9c05a.pdf
    • http://dokumenty-kiev.online/how_to_replace_igniter_on_ge_gas_stoveipu2e.pdf
    • http://fapseo.ru/319514725726ixzl.pdf
    • https://cdn-cms.f-static.net/uploads/4494166/normal_6047ce06bac79.pdf
    • https://cdn-cms.f-static.net/uploads/4475582/normal_6036884f5a724.pdf
    • http://kinokaiff.space/25831368230pv40a.pdf
    • http://lalat.space/jilanezumufibiwufokuvjxow.pdf
    • http://fsbsiod.com/98769899721tlz8e.pdf
    • http://20970907.net/zobamixugimutuvoa63bk.pdf
    • https://cdn-cms.f-static.net/uploads/4494668/normal_5fd6489b806e7.pdf
    • http://llloooodddd.space/45049858129fx7la.pdf
    • https://static.s123-cdn-static.com/uploads/4476941/normal_5ffe95fde98d0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://9387bd13-3746-4408-b474-2867f26e464d.filesusr.com/ugd/ace02d_8a33077e4ebd4c0d97a6db55ffad0c54.pdf?index=true
    • https://uploads.strikinglycdn.com/files/9addddf1-77db-4b69-80bb-ae465c5ec06c/bushnell_game_camera_reviews.pdf
    • https://uploads.strikinglycdn.com/files/466790e6-c7d8-432f-be87-c74d33c44287/33362703874.pdf
    • https://uploads.strikinglycdn.com/files/2f839183-be9a-46d2-a5eb-2c730da09b24/the_merchant_of_venice_book_buy.pdf
    • https://777dd155-384c-4f1d-a337-8f27b94bb056.filesusr.com/ugd/1ecdae_00657384372b4fc88693d76c3bf8a1a7.pdf?index=true
    • https://6c892e0d-5736-4b4a-96a3-cd490fd1fe3d.filesusr.com/ugd/1407cd_dfc93dbdd33a41e1ad9dc90f660a16e6.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_off00012258.bin
dae624bba34df78a71e34e8ce005db7a9354cfcde51541269b3abcf767800a1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12258 5088 bytes
font_01_sfnt_off0001338b.bin
c7217635c665d6ca465367cb6b751c6aa422659f855cbf611b60c067619c5aec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1338B 11432 bytes

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