Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aecd97f662c508b…

MALICIOUS

PDF

33.2 KB Created: 2021-07-05 12:58:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: faaf64e16176ae7078e06649c2c35cbb SHA-1: 073ad483b1782bac11bda9f43eb7fdec376438b4 SHA-256: 6aecd97f662c508bec7a7c7c239c276ca4ac7b987bcc2797111dafa387ac39b5
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/406889139/coin-master-time-hack-ios-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux-hack-2021-no-scam_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-gold-chain-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-a-lot-of-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/can-i-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/mouse-ears-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-combo-list_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-dragon-ball-super-2-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-scarf-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-coin-master-spins-no-human-verification_GM406889139.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_off00002f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F66 21844 bytes
SHA-256: 2638e3c569918354c51d392aefe4eb14cd5f478967ea69d013ef1b5534dec7d6
font_01_sfnt_off00005f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F42 18264 bytes
SHA-256: e044f2111956dd3925dd1ff7e5ca2de0ff7ca221e79223e1f430a3df40f93c8b

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