Malicious PDF — malware analysis report

Static analysis result for SHA-256 9df6b8776650b72b…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 05:35:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: cf3b125c1b4f409e9c5308299af13b4d SHA-1: f58821230d1cb998662975866702e9a3e3dae66a SHA-256: 9df6b8776650b72b3cbb53c42fa341725fcf86544e6371affd0aeba45408203b
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 spins for games like Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this is a lure for potentially malicious content. While no scripts were explicitly extracted, the nature of the lures and the ML classification suggest the document is designed to redirect users to sites that may download further malware or engage in phishing.

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/coin-master-twitter-free-spins-game-hack PDF link annotation
    • http://library.persadabunda.ac.id/repository/roblox-hack-build-you-one-boat-ccv_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/worst-client_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-person_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-admin-commands-hacks_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/hpyerinjector-roblox-hack-injector_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/robux-hack-v6-5-pastebin_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/cicada-wings-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/one-piece-millenium-roblox-dark-hack_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-download-android-free_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-coins-and-spins-app_GM406889139.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_off000032dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32DD 22832 bytes
SHA-256: 1198109651341458a91ef81af81750ee5709641b4aa26bcb35c09a966cf26a69
font_01_sfnt_off00006623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6623 18336 bytes
SHA-256: e01d93bf6b3b1ca3791082ec0b45fc012a06aff95b12f5f509e0a799f9ea8db5

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