Malicious PDF — malware analysis report

Static analysis result for SHA-256 863ca816f00e1b4b…

MALICIOUS

PDF

33.4 KB Created: 2021-07-05 01:24:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8de8b065187a0ca8ccbfa70a4549b175 SHA-1: 33f09ce7d03d610b5f07154963c01b9820814a80 SHA-256: 863ca816f00e1b4b5e5fc70bbbd91e0366b59efb7b26430f2744f1072d0a431e
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/479516143/how-to-get-minecraft-for-free-on-laptop-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-with-no-app-download_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hacks-for-jailbreak-in-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-rich-accounts-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-retail-tycoon-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/como-usar-tesla-roblox-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-converter_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-rare-roblox-account_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/auto-farm-hack-boku-no-roblox-remastered_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-for-apps_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/royale-high-roblox-dresses-free-glowing-beach-skirt_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_off00002f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5A 22052 bytes
SHA-256: 93b4c785266a7c7ce39d411789a050b5b3d27909cc02a255cde4a07e6824f023
font_01_sfnt_off00005fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDC 18336 bytes
SHA-256: b646d971b4a48de69496e79329de15073d264ed964b7577fdc93e7feb1447e1a