Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02b6c6923b9dd1d…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 18:19:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 3cfc81518b83a7c7c00f3b9553ccae91 SHA-1: 21a00161d0d078666d3a25c0390d3cfbf67b9466 SHA-256: e02b6c6923b9dd1d27e2c63de2428bc9089a2e80cd8302348609c41ea5042256
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and cheats to entice users. It contains multiple links to redirector infrastructure, such as http://netcdn.co/app/431946152/roblox-jojo-project-cheat-game-hack, which likely serve to host further malicious content or phishing pages. The presence of these malicious links and the ML classifier's high confidence score indicate a high likelihood of malicious intent.

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.co/app/431946152/roblox-jojo-project-cheat-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/sound-space-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-free-pants_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-level-up-hack-on-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-ultimate-gamer-365-new_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-pro-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-you-do-roblox-cheat-on-criminal-vs-swat_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-logo-youtube-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-on-roblox-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/guuud-info-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/master-game_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-it-hacking-if-i-use-autoclicker-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-gamepasses-roblox-2021_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_off00003033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3033 22604 bytes
SHA-256: 7468b13413769d4c4de1fc15d58254cb0e1a48804cdff24047b1cb9c1ea5310d
font_01_sfnt_off0000627f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627F 19264 bytes
SHA-256: 88211f98aa9c84faa9582f6c4a7b2c64f39aaae93ed5331e3fa377aee7539938