Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb916c3e46b5e16…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 19:02:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1da8204be51331c27bb7a1b544aab019 SHA-1: fa53db8a7c86e40d26c6e371db2a535926334877 SHA-256: deb916c3e46b5e16a6fd020a18183ef1ea193ae0623e79676f82065c6a9082d4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and infrastructure, masquerading as 'game hacks' or 'free generators'. The primary lure appears to be a fake download for game-related cheats, which is a common social engineering tactic to trick users into downloading malware. No scripts were extracted, but the embedded links strongly suggest a malicious redirector chain designed to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/fbchampion-game-hack In PDF document text
    • http://lib.kunci.or.id/repository/roblox-account-hacking-device_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/roblox-bomb-vest-free_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/roblox-hack-no-human-verification-no-survey-no-download_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/robux-computer-hack_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-roblox-neon-rideable-pet_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-accounts-for-roblox-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-robux-descargar_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/hacking-program-for-roblox-to-hack-accounts_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/roblox-boxing-simulator-2-hack-xbox_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/coin-master-daily-free-spins-link-today-2021_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_off00002f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F57 22680 bytes
SHA-256: 2d84f79a038fd4eee4072e25db369a30171592f24f171fb9fde6d85772f85f89
font_01_sfnt_off000061fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FA 18656 bytes
SHA-256: fb679c9250522cab0344be15c9898f12ed930a7de6dfe2591d59bad5f2ca43f7

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