Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc886550f4e9329…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 21:30:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f869f2ee7efa5809fe3fdef5d707b7ee SHA-1: d5fa560cd240203332c01fee7ca2fc3acd076486 SHA-256: 6fc886550f4e9329b1d227e599e6c63dc2f62d5d3a6b0027f7011282bfe930b2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a prominent link to a URL that appears to be a lure for game-related cheats or downloads. The heuristic 'SE_SECRET_RECOVERY_LURE' suggests the document may also attempt to phish for sensitive information like private keys or passwords. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

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-free-spin-and-coin-link-haktuts-game-hack
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-minecraft-account_GM479516143.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/minecraft-java-account-free_GM479516143.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/coin-master-free-spins-through-coin-pop_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/roblox-hack-tool_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/roblox-hacks-2021_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-roblox-card-codes_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/rbx-website_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-download-2021_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/coin-master-free-attack-link_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-33-download_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-robux-script_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/coin-master-hack-unlimited-spins-game-download_GM406889139.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://elearning.mtsnkra.sch.id/__statics/gudangsoal/files/free-robux-generator-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b39.bin
f4cc7c3ed7a848df00da6e36d7dacd9ad74c9e34c12ebac36f56ed1cd2d28287		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B39 24304 bytes
font_01_sfnt_off0000832c.bin
6ff184d88c7edc501ccd8c43f711d8b4a31af9e5613917888831e6fd5fbfeb68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x832C 18792 bytes

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