Malicious PDF — malware analysis report

Static analysis result for SHA-256 90c252e7934826c9…

MALICIOUS

PDF

42.1 KB Created: 2021-04-27 04:23:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d3b127f4ba8600dfce78b5f4eca09a71 SHA-1: 951011906740c6c501af6c1630e3f9bb63a7b3b0 SHA-256: 90c252e7934826c99e4cf909e389f1eb8e9097338b1c9f0c19430edbf8e91f3e
122 Risk Score

Malware Insights

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

The PDF document employs a social engineering lure related to game hacks to entice users to click on embedded links. These links redirect to a URL that promotes the installation of a browser extension or update, a common tactic for malware delivery or credential theft. No scripts were extracted, but the heuristics strongly indicate a malicious intent to trick the user into a harmful download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.xyz/app/431946152/all-roblox-vehicle-simulator-chat-hacks-game-hack PDF link annotation
    • http://lib.icbc-indonesia.org/repository/gamepass-me-free-robux.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/robux-cheat-without-human-verification.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-robux-bloxawards.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-one-piece-millenium-stars-hack-script-pastebin.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/creator-give-roblox-hacks.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-free-items-glitch.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/hack-mod-apk-de-roblox-2388202117.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-field-of-battle-cheats.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/cheat-engine-roblox-2021-robux.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/que-pasa-si-mientes-al-hacker-de-roblox.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_003_off0000433f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x433F 26288 bytes
SHA-256: 9b3e0fc778240206cf4d9b7ff5de888413e7d5a8cf859ffc9e8b41f89ddf8de1
font_01_sfnt_off000080b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B4 19108 bytes
SHA-256: 68fdee1d990ac5fd28f1a1d50911621898bd4e43d7d7e7acf250ea6842988c4a

Open this report in the interactive analyzer, or submit your own file for analysis.