Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc926b43bae0b94c…

MALICIOUS

PDF

74.3 KB Created: 2021-03-30 00:19:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44c6d90c3665782a33a244b22644f800 SHA-1: aac6b6922866c58cee494bddf9ea5bb9bf874da8 SHA-256: dc926b43bae0b94cdfc8fdab013dd21b55738ea7e141f6dc1aaf68cde3b720b7
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://soxebez.ru/award?keyword=vicdans%25C4%25B1zlar+antisosyal+ki%25C5%259Filik+bozuklu%25C4%259Fu+pdf` suggests a phishing or social engineering lure, likely aiming to trick users into visiting a compromised site. While no scripts were explicitly extracted, the PDF structure and embedded URIs are typical of phishing documents designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=vicdans%25C4%25B1zlar+antisosyal+ki%25C5%259Filik+bozuklu%25C4%259Fu+pdf
    • http://fibutogu.mywebcommunity.org/brand_positioning_strategy.pdf
    • http://mon-fortuneo.best/82331430842mcwar.pdf
    • https://cdn.sqhk.co/kakovavop/fihdbjd/idle_fisher_tycoon_fish_inc.pdf
    • http://penageli.getenjoyment.net/rebelion_en_la_granja_george_orwell_personajes.pdf
    • http://wasatosu.sportsontheweb.net/vikegelivusip.pdf
    • http://devgame.design/4397596439599wz1.pdf
    • http://fasekafalig.scienceontheweb.net/when_worlds_collide_song_spongebob.pdf
    • http://koxivesuvif.mypressonline.com/reading_assessment_tools.pdf
    • http://goloszauniver.fun/easy_homemade_vanilla_cake_from_scratch8k1ar.pdf
    • https://cdn.sqhk.co/wesuwajil/pgRgdgg/earth_galaxy_live_wallpaper_mac.pdf
    • http://lorakuze.sportsontheweb.net/xadopuwaleba.pdf
    • http://daimontimur.org/gemini_alarm_system_troubleshootingpmkdw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zamuriza/11599608209.pdf
    • https://s3.amazonaws.com/sugosubexez/vepejuxolibilumavaruzebug.pdf
    • https://19004eff-8f5e-45b0-b15a-9fbdbd99e39d.filesusr.com/ugd/578ea4_763be5d66d614e83880efb78f75c9551.pdf?index=true
    • https://19527f6f-7821-4b33-8e58-d909ab9a203f.filesusr.com/ugd/b18fc6_bc1723d523d340e084c164e27631a7cb.pdf?index=true
    • https://s3.amazonaws.com/kimone/codecanyon_android_template.pdf
    • https://s3.amazonaws.com/xopugup/formation_chaudronnerie_navale.pdf
    • https://s3.amazonaws.com/ziwuvijevo/jutuvepovu.pdf
    • http://ligoroxenafof.atwebpages.com/reading_and_listening_skills.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_off0000de1d.bin
17265fa8a5b21eb6ec8fd1eddde8d2f93ae5d80f50280559c5a7b0a379b9a0ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1D 5980 bytes
font_01_sfnt_off0000f227.bin
f9d00aa03e997e9d7a6ee7fa525f7de0e8504e54ea37ace3e4ec0a8dcd0f0925		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF227 12320 bytes

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