Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6f23a43cdb05d1a…

MALICIOUS

PDF

34.9 KB Created: 2021-06-30 17:38:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4a7c653820cd0897f65f2d3993ec1e96 SHA-1: 668d3672ea815cb8e82bf29af4c821c90811394e SHA-256: b6f23a43cdb05d1ac773b4e2b8d3fff31554386b20c706f7697bf88830f6cb69
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/gabe-youtube-free-robux-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/roblox-sand-simulator-infinite-backpack-code-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/robux-cheat_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-us-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/a-free-trial-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/774-roblox-hack-discord_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-human-verification-or-survey-2021-on-ipad_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-2021-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-things-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/who-hacked-cutelucyy9-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-script-hack-pizza-factory_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-dragon-ball-rage-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-hack-2021-online_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-suit-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-use-cheat-engine-64-on-roblox-for-robux_GM431946152.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_off0000313f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313F 22524 bytes
SHA-256: ffc4e50667f2ff21a49e599439aac6f7c29d3deae51b612f53ef832f75825c91
font_01_sfnt_off0000636f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636F 18984 bytes
SHA-256: eed7ff33433d6cfe493253cfb27fd3f181e0655c18b3cfc36191063208ac0acb

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