Malicious PDF — malware analysis report

Static analysis result for SHA-256 6701884e152a0c5d…

MALICIOUS

PDF

32.8 KB Created: 2021-07-05 12:39:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: cdacc248b960c8d3045cef1b6a335253 SHA-1: 65357ffea2a3774b277ae94b692c6c3d79bf6df5 SHA-256: 6701884e152a0c5ddc0e3efcb03c180fa39871cc1b9d6bd69bbe865e2e250854
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a suspicious URL. This indicates a social engineering attempt to trick users into visiting a potentially malicious site. While no scripts were extracted, the embedded URLs and the nature of the lure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-build-hacks-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/25-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-cash-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-free-hats-exploit_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-robux-and-tix-no-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-speed-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-for-robux-just-but-ur-username-in_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-galaxy-arcade-cheats_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-prison-life-hack-download-2021-mobile_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/bear-face-mask-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-muscle-legends-cheat_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-become-a-admin-in-roblox-no-hacks_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_off00002d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1E 21728 bytes
SHA-256: d12ceca36dccbb002aeb6cf08798e18dd7d6ae9cceb2401d4b56c4dbd85fcdef
font_01_sfnt_off00005c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C78 18628 bytes
SHA-256: a4fd7a8a6c31dcfbd5d524261ca24fbd66144d88575524e109ec8b87e7a5b6d6

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