Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee886c35aa41a74…

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 03:35:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b079e7d7d42b32a2693009cdb50af892 SHA-1: 2fba1355b97ad9acdf6d96fd5a7cf1a539b4206e SHA-256: cee886c35aa41a744d0211699d56615cc465a955c09340bb2f6d93090fca5fff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, which is a common lure for malicious content. The embedded URL, https://netcdn.xyz/app/835599320/tiktok-i-feel-kinda-free-song-game-hack, likely leads to a second-stage payload. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into downloading further malicious files, aligning with a spearphishing attachment tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/835599320/tiktok-i-feel-kinda-free-song-game-hack PDF link annotation
    • http://genialica.com/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/play-coin-master_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/robux-converter_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000472e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x472E 24044 bytes
SHA-256: dd3b1b07ed6d925fc87aa5d77103b816728eea6daa4f96bad4685b011dd6c582
font_01_sfnt_off00007e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4C 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off0000885c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x885C 18220 bytes
SHA-256: db93bc6c32f2b795e559c1a25efd3e5b5cba881dce60d8959115d3c2c7ee626d