Malicious PDF — malware analysis report

Static analysis result for SHA-256 3de25c279cfbde94…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 20:26:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 10e836adab7d6f90e027590e0a883f7e SHA-1: 1c28946bf54f81cc73406fa050995c04d7571c3f SHA-256: 3de25c279cfbde94dcb03b8ae910414d09bbf6ec218485eb58ba023c53b46eaa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/roblox-lumber-tycoon-2-cheat-axe-game-hack PDF link annotation
    • http://baroque1990.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/boku-no-roblox-codes-cheat-sheet_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-avatar-the-last-airbender-cheat-engine_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://baroque1990.com/images/dead-by-roblox-bloodpoints-hack_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/rbx-website_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/hack-r-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/cheat-roblox-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/80-robux-free_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_off00002e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2F 22584 bytes
SHA-256: b8fc5a883c215933e8b8c8880a8ba9c6e217fe87a543968ccd4f662ff43b8682
font_01_sfnt_off000060bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BB 19460 bytes
SHA-256: 6bd27dadbb5436ad732f2a17848e4582959936fbe19b0f689e2ee9b5a78d6338

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