Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa093a00265038f…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 21:40:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d3b13ff4c6b7ed63e8bd3515906572a0 SHA-1: b571ed935fffae08bd80eac462ca5d7419b1c7cd SHA-256: 6aa093a00265038f403b10679ba8e053b6edffbc2d9f34c109d9c889e770006a
102 Risk Score

Malware Insights

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

The document contains a lure for game-related cheats and exploits, specifically mentioning 'Coin Master Daily Spin Free' and providing multiple links to download related files. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document may attempt to trick users into revealing sensitive information like private keys or passwords under the guise of game-related benefits. The presence of external URIs and numerous embedded URLs suggests a phishing or social engineering attempt to redirect users to malicious content.

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-daily-spin-free-game-hack
    • http://fourieredu.cz/files/ckfinder/files/redeem-roblox-card-free_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/hack-coin-master-using-pc_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-minecraft-com_GM479516143.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-robux-no-verification-no-download-2021_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/coin-master-hack-version-download_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/is-minecraft-free-on-pc_GM479516143.pdf
    • http://fourieredu.cz/files/ckfinder/files/create-minecraft-server-free_GM479516143.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-spins-coin-master-generator_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/coin-master-hack-2021-android_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/orewards-com-free-robux_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-robux-hack_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-roblox-com_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-robux-script_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-spin-link-coin-master-today_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/how-to-get-free-minecraft-windows-10_GM479516143.pdf
    • http://fourieredu.cz/files/ckfinder/files/earn-robux-online_GM431946152.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-spins-from-coin-master_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • http://fourieredu.cz/files/ckfinder/files/free-robux-no-verification-no-survey_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048fd.bin
26af7b7ad22a4980c148f7d1f410b53738b7fbd69faba9d1b7b84b09c34a5d67
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FD 24468 bytes
font_01_sfnt_off000080fe.bin
213ea0fed5678e19eff32fcc5d46e69a4f1b73f67043b57a178cf12547108d4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x80FE 18308 bytes