Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce569eac683be26c…

MALICIOUS

PDF

35.8 KB Created: 2021-06-19 02:49:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 650c471e444817b07851a7caa93b6e27 SHA-1: 6f813a93443904725018667112009369309d99da SHA-256: ce569eac683be26c8a1229e472d9e8b96c1fb42428b6bfca68a6e0caeb917580
122 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 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.co/app/431946152/yt-how-to-get-free-robux-without-human-verification-game-hack PDF link annotation
    • http://library.atim.ac.id/repository/how-to-get-free-money-in-mad-city-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-fly-cheat-code_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-robux-no-download-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-hack-roblox-passwords-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-today-dot-com_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-bleach-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-freeze-tag-games_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-exclusive-virtual-item-codes-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/critical-strike-roblox-free-gamepass_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-tool-robux-and-tickets-download_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/is-it-really-possible-to-get-free-robux_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_off000031d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D0 22460 bytes
SHA-256: 251aa3d18acfc18cdfa5ed57cd8b39acdaddc3209c41f4169698efdaa85c181b
font_01_sfnt_off0000640c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640C 20024 bytes
SHA-256: ca7b6c7056250824e01eb3f30a966cc0f688412964062072855be9136488bc1d

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