Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46c0c1472b85b7a…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 03:35:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e9024bccb25cf5ec19ce66a989f48800 SHA-1: aafd0ea30f3f74d5bb3da3c17b8c23387f927819 SHA-256: d46c0c1472b85b7a44bc98b649ef90e3db42db1c1d053ccfd8059c3c8153993c
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-lego-hack-2021-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/how-to-get-a-bunch-of-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-script-hack-admin_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-im-gay-roblox-shirt_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-tonk-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.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/infinite-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-robux-free-and-legit_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_off000030e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E2 22496 bytes
SHA-256: 0b84bd06786843e10cac868a846dbe22e3aa0ea5bb833a6e9f790f6f542405f0
font_01_sfnt_off0000635c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 19056 bytes
SHA-256: 6dc999db1c0a8be3bb3ce0cc76eb7d23a6cfefe2621564020fc966e247c166e5

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