Malicious PDF — malware analysis report

Static analysis result for SHA-256 f776507e0230a895…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 14:12:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1585aea280bef4a5cb0af0a1c9db7482 SHA-1: 12992bcefd27251140394578122e1331b4594d04 SHA-256: f776507e0230a895f9038a87f645f522821187cdbfdc83c56d036870c8f40e2a
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.tw/app/431946152/roblox-assassin-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-straight-away-cheats-for-money-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-get-free-robux-online_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-no-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-jailbreak-hack-money_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-fortnite-dances-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-hack-tool-robux-and-tix-no-download_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hack-dragon-ball-online-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblux-robux-hackhacks_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_off00002edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDF 22676 bytes
SHA-256: 6f295de7c0c4b3c37745dcac3687c0f9cb22287e299b85b085b7bcafe5c82174
font_01_sfnt_off00006171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6171 18608 bytes
SHA-256: 487c57aab2c14b77de6ae94f075bf8bf3a9026a86e5e74f635a4f191a7fd8b96

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