Malicious PDF — malware analysis report

Static analysis result for SHA-256 793840063a77e54f…

MALICIOUS

PDF

52.7 KB Created: 2021-06-11 06:48:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: c01790de853964892209b72a681cdd95 SHA-1: 7c71da091134df1e92b0d09147b005e65126fe02 SHA-256: 793840063a77e54f296426dfbe7cbefd07e7efed5ed6c0106f04bb421e1b69a1
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9657

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 https://netcdn.tw/app/431946152/murder-mystorys-roblox-knife-hack-game-hack In PDF document text
    • https://lib.bunghatta.ac.id/app/repository/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/getbucks-free-com-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/gui-template-roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-2021-october_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/rbx-claim_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/medieval-hood-of-mystery-free-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/robux-code-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51F8 26048 bytes
SHA-256: c1d9da8b12e73abbd07a15a4e4e24a0d3d15bb851144ed0624cae55bbc3b8050
font_01_sfnt_off00008ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF9 4056 bytes
SHA-256: 8524345a0ed5d2e87a72f70f9e1af257ccef51766f8c6d4c281a9a3902c217e5
font_02_sfnt_off00009c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C98 3396 bytes
SHA-256: e59bc53cd4c0ee65dc1533becad2866f345dcb060e6c68bb8187d21cb9f973ee
font_03_sfnt_off0000a88b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA88B 19096 bytes
SHA-256: 7232c9569cc605db4a0c4fc340c02794dabe690a2e3df3ea9a23225daf72e360