Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e84e19a59b0bc2e…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 07:00:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ccfbce3b4e8974e7935f25ce47b3b736 SHA-1: 736d4685de4814fd674663978a2d24dc5c15a035 SHA-256: 7e84e19a59b0bc2eb4a0629fa9f2d57863edab0781ff3d57c424d4c668178efc
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' lures. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the document body content strongly suggest the intent is to trick users into visiting malicious websites. The presence of a 'password-protected archive handoff' heuristic indicates a potential secondary stage involving encrypted payloads, further reinforcing the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/431946152/get-robux-com-game-hack PDF link annotation
    • http://library.darmaagung.ac.id/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/roblox-noclip-hack-download-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id//repository/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/get-free-robux-skin-tone_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id//repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id//repository/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id//repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/free-robux-without-password-website_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/roblox-robux-generator-free-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/free-shoulder-pet-roblox_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.darmaagung.ac.id/repository/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • http://library.darmaagung.ac.id//repository/easy-roblox-today_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_off00002d7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7F 22056 bytes
SHA-256: bf2919fcda27aaed7f64b76e483f88f8a912f73e599a53394cbe19e2055af2be
font_01_sfnt_off00005e29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E29 18916 bytes
SHA-256: c2efe05e9d2138b719f685e0e190c44da44493e238d9fd68d8d9349a0cba08af

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