Malicious PDF — malware analysis report

Static analysis result for SHA-256 faabb4de717da82a…

MALICIOUS

PDF

34.2 KB Created: 2021-06-27 20:18:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 94965043f47c95deb59d509c4d9479f1 SHA-1: edb593aca6de81488c1e349b1934cbd21bfbbe09 SHA-256: faabb4de717da82a62f84adef9f92e70a1db31dc4b012e823f449697ba0dab50
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/hacked-tshirt-roblox-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-play-pay-to-play-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-pc-only_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-clothes-with-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-cs-go-hack-wallhack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-today-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-hack-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/mcpe-client_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/pokemon-go-free-yamask_GM1094591345.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-promo-codes-2021-august_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/rbxoffers-com-free-robux_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_off00002ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA1 22300 bytes
SHA-256: 5d2059e725219ec40189dd600ddfb3e921ef7fbcf199310d9cba7585abd15f15
font_01_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 19220 bytes
SHA-256: efab4bc63f4eb0485684f4898fcb43b25b1cbd69f3357360dc1ba2675e43048a