Malicious PDF — malware analysis report

Static analysis result for SHA-256 5131aa299f262622…

MALICIOUS

PDF

46.1 KB Created: 2021-06-08 23:05:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 97cfdb2b393d815c18fd3b27004b9f58 SHA-1: f7d91e4cf7d9e22f1abe81d4dac09314d658e559 SHA-256: 5131aa299f26262207ec5a5930fa173aee7a54a5bb12f349a8ce987d2ec77fec
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and cheats, such as 'lua-cheat-engine-roblox-game-hack'. This lure is designed to trick users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/lua-cheat-engine-roblox-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-avatar-items-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/best-free-roblox-executor_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
stream_004_off0000543f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x543F 25856 bytes
SHA-256: 160f97b0b61a01c3e6ce9dafdd95b7cf5cdd96beb07a09797609860cff439587
font_01_sfnt_off00008ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF4 18832 bytes
SHA-256: 6469f38ed5ab560f2546d3b0161cfceec362a02a8fa329fe87db133837566758

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