Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c2fa31b5247e2b4…

MALICIOUS

PDF

33.0 KB Created: 2021-06-26 20:20:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 618de2e94bc89eba5e6131fbeb7e7266 SHA-1: 13d8e85893b8337345b6ee419bb52a7bbc699ce9 SHA-256: 9c2fa31b5247e2b4029d7a49563f00e5c8915856612a9e060c0025242d595c48
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, including one to 'netcdn.co', that are designed to lure users into clicking on them by promising game hacks and free in-game items. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to redirect users to potentially malicious websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 3

  • 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.
  • 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-packs-in-roblox-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/moon-active_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-rixty_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-robux-hack-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-skywars-script-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-find-free-items-on-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/skyline-reviewed-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/best-roblox-free-models_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-vip-link-server-roblox-any-game_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/robux-free-hack-xyz_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/como-hackear-adopt-me-en-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/hack-money-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3001 22456 bytes
SHA-256: 47bd0cd8068c6b95e533e85ac36a2ca76e49db0bc66ba9d100f06a8e72967b41
font_01_sfnt_off000061e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E1 19244 bytes
SHA-256: 0f2be5ca9a833888338faa42782b30a4966a218c82b3d12ebdb7fa40b58d7a63

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