Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1f79e8a891c467…

MALICIOUS

PDF

42.6 KB Created: 2021-05-11 22:16:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0d4d36c39c76950127fe0acb93c11864 SHA-1: 6229c84c11539b38b4f70c81dd22d2b3ede77a27 SHA-256: dd1f79e8a891c467da6fa344551c1bb39d11772dc1c01a49b068199a142d6869
102 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs and a clear lure for downloading an application, specifically requesting recovery secrets. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button heuristic further supports a malicious intent. The document likely aims to trick users into downloading malware by promising game-related hacks or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/coin-master-hack-version-download-2021-ios-game-hack
    • http://optiquedelavaunage.com/images/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://optiquedelavaunage.com/images/roblox-hacks-and-cheats_GM431946152.pdf
    • http://optiquedelavaunage.com/images/coin-master-free-spin-no-offers_GM406889139.pdf
    • http://optiquedelavaunage.com/images/rbxfree-com-free-robux_GM431946152.pdf
    • http://optiquedelavaunage.com/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdf
    • http://optiquedelavaunage.com/images/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://optiquedelavaunage.com/images/free-robux-for-free_GM431946152.pdf
    • http://optiquedelavaunage.com/images/robux-free-co_GM431946152.pdf
    • http://optiquedelavaunage.com/images/robux-hack-tools_GM431946152.pdf
    • http://optiquedelavaunage.com/images/coin-master-hack-no-verification-2021_GM406889139.pdf
    • http://optiquedelavaunage.com/images/get-free-robux-generator_GM431946152.pdf
    • http://optiquedelavaunage.com/images/coin-master-free-spins-link-today-hack_GM406889139.pdf
    • http://optiquedelavaunage.com/images/free-robux-today_GM431946152.pdf
    • http://optiquedelavaunage.com/images/minecraft-115-2-hacks_GM479516143.pdf
    • http://optiquedelavaunage.com/images/how-to-hack-coin-master-root_GM406889139.pdf
    • http://optiquedelavaunage.com/images/coin-master-free-spins-2021-today_GM406889139.pdf
    • http://optiquedelavaunage.com/images/coin-master-hack-iosgods_GM406889139.pdf
    • http://optiquedelavaunage.com/images/free-robux-no-human-verification-or-survey_GM431946152.pdf
    • http://optiquedelavaunage.com/images/no-scam-free-robux_GM431946152.pdf
    • http://optiquedelavaunage.com/images/free-roblox-groups_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048fe.bin
5ae9116febc2a5d0d4bde40939de6b144dc0012f8067ff3cc1374d8a670941be		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FE 25932 bytes
font_01_sfnt_off0000826e.bin
cc7b03749ee8e0bb295fc18f3327ccd24d21e4560feed49354a921164f87bbf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x826E 18832 bytes

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