Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff2aaa1cba6d06ee…

MALICIOUS

PDF

35.8 KB Created: 2021-06-29 17:07:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0cf6c504744d75f6452b74750eb183ca SHA-1: abac9a7c384b5de50ec63317928d4db2f2da7498 SHA-256: ff2aaa1cba6d06ee5e8061c01823c37aee255fc460fcfa7429808a8fec3d207c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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-join-players-that-arent-freind-hack-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-hack-no-download-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-cheat-engine-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-by-inspecting-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-cheat-money-on-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/where-to-find-roblox-speed-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/bin-xterm-pastebin-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-promo-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-cheat-in-roblox-counter-blox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-harley-quinn_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-magic-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/tiktok-free-like-2021_GM835599320.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_off0000303c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303C 23196 bytes
SHA-256: 284a01e62b9840bfa0855f82d6eb45766b7f9be982dba9949348ec49088f8012
font_01_sfnt_off00006481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6481 19884 bytes
SHA-256: 3343215526a9106427052aebd611c231efe8cd75673c90ea957acce0a87722e9

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