Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2e7224be28a2e4…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 13:56:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7ee4a8e357b1dbad17183ddc58af3bdb SHA-1: a0cd6e6195082f0e2528cbc71cf3865fd48aebf2 SHA-256: 8a2e7224be28a2e497d94cc028ba35ba589688bc5477997bc87bda6ddade6191
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on game hacks and free currency lures for popular games like Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates the malicious intent of these links. While no scripts were extracted, the document body and heuristics point to a phishing or scam attempt designed to redirect users to potentially malicious websites.

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/406889139/how-do-i-get-free-coins-in-coin-master-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-money-hack-on-roblox-car-simulator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-can-you-get-free-robux-on-laptop-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/sound-space-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/can-u-make-t-shirts-for-free-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/get-free-robux-on-a-server-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-roblox-system48-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/game-guardian-roblox-invisible-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-counter-blox-roblox-offensive-hacks-very-op_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/znac-free-roblox_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
stream_002_off000030ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30AC 22532 bytes
SHA-256: 3cf76ed844a6b95ab0c00936dde1732ea637d5795bcb13b44f83e60bf18f481c
font_01_sfnt_off000062e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E5 18328 bytes
SHA-256: 1b72113e62650f7fcb08a0ad33bfc479abf41e084b3a9b054d320c4331e51381

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