Malicious PDF — malware analysis report

Static analysis result for SHA-256 da2a06de9e840f95…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 12:02:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0f09cd2d3a091bec8da60447701ef0d6 SHA-1: a10d671f50091387c0138c162b8b0968e0636687 SHA-256: da2a06de9e840f956f2d67fb508b7c901526b25c64bcef3b817fb8f735f9c10c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/406889139/free-spins-coin-master-cheat-game-hack PDF link annotation
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-money-glitch-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-axe-in-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/roblox-is-hacked-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-items-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/pubg-uc-website-free_GM1330123889.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/diamond-hack-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/como-hackear-el-juego-coin-master_GM406889139.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_off000034cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34CF 22748 bytes
SHA-256: ce0cdcb340ca8db3788d3daf443c284c7265c35ff8d2248f2950ce03d4d40baf
font_01_sfnt_off000067b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B7 18340 bytes
SHA-256: 3e738f0f4701e6d0993b9e177a0bcd70348f62fa5f90b082bbaab36261cd8278

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