Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ca6106951d781e…

MALICIOUS

PDF

41.3 KB Created: 2021-05-15 23:38:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8e0bceb724f6f3cf3b552d7fe6e66dab SHA-1: e1977f3201740aab905d43a3c83c4b081d2d8ba5 SHA-256: d2ca6106951d781ecd1b457c4e138b624179cb80b479e71960ac40fdbe6b8705
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a prominent external URI pointing to a site offering game-related cheats, suggesting a lure to download a malicious payload. The heuristic indicating a password-protected archive handoff suggests the document may be designed to bypass security controls by encrypting its payload. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-october-17-2021-game-hack
    • http://elibrary.perludem.org/repository/you-promised-my-son-free-robux_GM431946152.pdf
    • http://elibrary.perludem.org/repository/static-moonactive-net-rewards_GM406889139.pdf
    • http://www.elibrary.perludem.org/repository/coin-master-free-spins-2021_GM406889139.pdf
    • http://elibrary.perludem.org/repository/coin-master-firebird-card-free_GM406889139.pdf
    • http://elibrary.perludem.org//repository/roblox-premium-free_GM431946152.pdf
    • http://elibrary.perludem.org/repository/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://www.elibrary.perludem.org/repository/free-coin-master-spin-and-coin-link_GM406889139.pdf
    • http://elibrary.perludem.org/repository/free-robux-master_GM431946152.pdf
    • http://elibrary.perludem.org//repository/minecraft-diamond-finder-hack_GM479516143.pdf
    • http://elibrary.perludem.org//repository/minecraft-hacker-skin_GM479516143.pdf
    • http://www.elibrary.perludem.org/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://elibrary.perludem.org/repository/coin-master-heaven-free-spins_GM406889139.pdf
    • http://elibrary.perludem.org//repository/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdf
    • http://elibrary.perludem.org/repository/coin-master-free-spins-2021-haktuts_GM406889139.pdf
    • http://elibrary.perludem.org//repository/wurst-112_GM479516143.pdf
    • http://www.elibrary.perludem.org/repository/free-robux-com-roblox_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/roblox-hack-download_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/coin-master-rewards_GM406889139.pdf
    • http://elibrary.perludem.org/repository/hacks-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004891.bin
c4e1b2055b4f0fb012b7548bd8b139a6b8d147e1f6cf213668228a9f18e782d4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4891 23636 bytes
font_01_sfnt_off00007e0d.bin
aa7bff32dbd331c78ef5965829602ae5e6111fcf7e9748869226dce5f8ff9ec9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 18504 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.