Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2da447600944126…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 15:28:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 151ed93798efe3216011d020f2f47c5d SHA-1: 15626da7746701176af2c8f025d61f93ff3c62d9 SHA-256: e2da447600944126134919069cf179e00cd0b5ae0ab741ee944684e2e3b6dad9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and a visual call-to-action, masquerading as a game hack generator. The primary link, http://netcdn.tw/app/431946152/robux-apk-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to lure users to download potentially malicious content, likely an executable or further exploit.

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.tw/app/431946152/robux-apk-game-hack PDF link annotation
    • http://stmb-multismart.ac.id/perpustakaan/repository/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-instantly-get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/base-wars-roblox-cheats-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-get-skins-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/cheat-engine-roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/hack-client-roblox-may-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/robux-promocodes-no-hacking_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-dominus-roblox-not-a-model_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-get-a-penguin-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-hack-all-game-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/slurp-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-robux-super-easy-and-very-quick-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/www-rubux_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-cheat-engine-64-robux_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/ccv-roblox-hack_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_off000030e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E2 22456 bytes
SHA-256: 9dfe1d128ec4a722123dadc5cbcaf410f42e5f0a3c53c3a8fa20273a2b221faf
font_01_sfnt_off0000630b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630B 18896 bytes
SHA-256: d6fe5a9ee6cd38a3f7fd000d6a8081505603ed5c53f6d64f924d6cd3550e503f