Malicious PDF — malware analysis report

Static analysis result for SHA-256 5695580f205d7558…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 18:31:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 11e0a45daa19d9203c5dd7bfcfbd052d SHA-1: 0de81cc73622d0335b994489e5d1910694d6f79f SHA-256: 5695580f205d75585211edb0b853952370896814029e5e4a79a928e19cb461bf
82 Risk Score

Malware Insights

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

The document contains numerous embedded URLs and a heuristic firing for an external URI, all pointing to sites offering game hacks and cheats. The presence of a 'Password-protected archive handoff' heuristic suggests the document is designed to trick the user into downloading a password-protected malicious file, likely containing a second-stage payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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/roblox-fly-hack-game-hack
    • http://library.itekes-bali.ac.id/repository/roblox-retail-tycoon-hack-no-cheat-engine_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/how-to-get-robux-on-phone_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-hacker-on-urbis_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/cheats-for-roblox-high-school_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-hack-download-2021-for-jack-the-monkey_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-for-ios_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-catalog-roblox-no-fake_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/hack-coin-master-apk-32-download_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/cheat-engine-roblox-shut-down_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-marketplace-sell-free-shirts_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/robux-free-online_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/hacks-on-mad-paint-ball-2-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-booga-booga-hack_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/rb-robux-unlimited-hack_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/hack-version-coin-master-apk_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f5a.bin
81a39929972cf10c0501e51d9e5cfcd468abd9537ae726c53d6dfc0b7c9b119f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5A 22000 bytes
font_01_sfnt_off00005ff7.bin
85597ddf86b547b1587e1575dd14eab6ad0408ff1d5dd1947e703cb703eeca41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF7 19000 bytes

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