Malicious PDF — malware analysis report

Static analysis result for SHA-256 694ce5cc2df064e4…

MALICIOUS

PDF

34.7 KB Created: 2021-07-01 20:18:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 62e3aaa7cc1b526dc6b3e0e248c9a980 SHA-1: 2b8e053be80123fabc3d59d9ace834f6bfeb025d SHA-256: 694ce5cc2df064e4f9ff0a09493b40d1d93f5823f309761baa7ab25f6719bcbd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing 'free Robux' and game hacks, indicating a lure for users interested in such topics. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-no-joke-game-hack, is flagged as a redirector for game hacks. This suggests the document's purpose is to trick users into visiting malicious sites, likely for credential harvesting or to initiate further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.co/app/431946152/how-to-get-free-robux-no-joke-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan//repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/www-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-robuxian_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hack-roblox-exploiting_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/sex-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/black-magic-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/robux-hack-no-verification-survey_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000313d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313D 21992 bytes
SHA-256: d81393684766999334a6571f7ae77d07eca94f4ebfc603865eb947ac4cd2c4a8
font_01_sfnt_off0000619d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619D 19320 bytes
SHA-256: 650b8b97bb431739ea91028be2f0ddb7077c97aea2040672f3235d223004f37a

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