Malicious PDF — malware analysis report

Static analysis result for SHA-256 5529cdae5a7875a8…

MALICIOUS

PDF

76.2 KB Created: 2021-03-02 02:33:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 336d46bc2827025538860c5d3193af75 SHA-1: 1af544da4fa004dcc37a29dd8789d439f2b6cc31 SHA-256: 5529cdae5a7875a89da999839b123ff1fabc1ab28b147c1c2ad97a0a80e6b1e6
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is malicious and a phishing attempt. It embeds a URL that appears to be a lure, disguised with terms related to Casio watches. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a phishing attack designed to redirect users to a malicious site.

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://botokaw.ru/strik?utm_term=casio+g+shock+digital+watches+india
    • https://cdn.sqhk.co/rozamulev/fkHjhlB/tiles_hop_color_ball_3d_game.pdf
    • https://cdn.sqhk.co/kikolibub/ygidKf1/zeus_father_cronus.pdf
    • https://cdn.sqhk.co/sabumijobude/jw3ih2b/sopefozesemumulone.pdf
    • http://vugekowuzujed.scienceontheweb.net/tijonuluxatokakawudab.pdf
    • http://zememor.sportsontheweb.net/xudorixitijuwodul.pdf
    • http://jezojarugeboz.22web.org/dead_space_4_free_for_pc.pdf
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/7341303.pdf
    • http://xilatotes.sportsontheweb.net/524087646.pdf
    • https://depuxozepol.weebly.com/uploads/1/3/4/3/134377374/motulejikaberub.pdf
    • https://nozonefabizeg.weebly.com/uploads/1/3/0/9/130969368/sutur-topuvimizawe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/buponuwebi/robiwawipupa.pdf
    • http://warijagivekivax.rf.gd/you_are_responsible_for_your_own_happiness_on_the_job.pdf
    • http://kofaxafogi.myartsonline.com/swann_1080p_spotlight_outdoor_security_camera_review.pdf
    • 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_off0000ee58.bin
671b3cdd1d4031af52de60f796da067efe09d7303d0bac96fb74cc11e7f01c18		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE58 5168 bytes
font_01_sfnt_off0000fff8.bin
8be758080b7d877dafa6e99bc98212d9fb13094fa297e11fd67f43e83cc4d40f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF8 10596 bytes

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