Malicious PDF — malware analysis report

Static analysis result for SHA-256 baa23c4d9f4a682a…

MALICIOUS

PDF

42.9 KB Created: 2021-05-19 21:42:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6257b5b740ecd0b353fa006dff9522dc SHA-1: 6ac3f432e2761ca303555c94f501b74ce0a4ec35 SHA-256: baa23c4d9f4a682ae0baa63ce214e072dec31702506b7849e01c08a8eef76c6e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for game hacks and cheats, directing users to external URLs. The presence of a recovery secret lure and ML classification strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

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/how-to-hack-coin-master-android-game-hack
    • http://www.ma-plast.hr/files/roblox-hacked-version-download_GM431946152.pdf
    • https://www.ma-plast.hr/files/daily-coin-master-free-spins_GM406889139.pdf
    • https://www.ma-plast.hr/files/legitimate-coin-master-free-spins-apk_GM406889139.pdf
    • https://www.ma-plast.hr/files/pubg-uc-and_GM1330123889.pdf
    • http://www.ma-plast.hr/files/how-to-get-free-robux-easy-no-download_GM431946152.pdf
    • http://www.ma-plast.hr/files/can-you-get-free-robux-on-roblox_GM431946152.pdf
    • https://www.ma-plast.hr/files/free-robux-no-survey-or-human-verification_GM431946152.pdf
    • https://www.ma-plast.hr/files/apps-to-get-free-robux_GM431946152.pdf
    • http://www.ma-plast.hr/files/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://www.ma-plast.hr/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdf
    • https://www.ma-plast.hr/files/minecraft-launcher-free_GM479516143.pdf
    • http://www.ma-plast.hr/files/how-to-get-free-snacks-in-coin-master_GM406889139.pdf
    • https://www.ma-plast.hr/files/free-spins-for-coin-master-2021_GM406889139.pdf
    • https://www.ma-plast.hr/files/coin-master-hack-ios_GM406889139.pdf
    • http://www.ma-plast.hr/files/coin-master-spin-hack-2021_GM406889139.pdf
    • http://www.ma-plast.hr/files/minecraft-realms-free-codes_GM479516143.pdf
    • https://www.ma-plast.hr/files/regal-world-coin-master_GM406889139.pdf
    • https://www.ma-plast.hr/files/coin-master-free-spins-instagram_GM406889139.pdf
    • https://www.ma-plast.hr/files/microsoft-free-robux_GM431946152.pdf
    • https://www.ma-plast.hr/files/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d0a.bin
9a2401dbf063f7b7a88fbe465e527958f07defb7484f7ea380cd19eb6547cc9d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D0A 25720 bytes
font_01_sfnt_off000085f2.bin
bcfa17c5709dab1c3cba96da80ba62d2e7141defff98e25088c987d76bf65ce0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85F2 18056 bytes

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