Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    09-01-2022 14:20

General

  • Target

    6143d920ebdd5e9b1db7425916417c0896139f425493a8fcd63d62dac80779f1.bin.dll

  • Size

    66KB

  • MD5

    cac54670bc5a9fa936487640a718c269

  • SHA1

    20f802801a424e2a57ff21e048734fe21f0c57c0

  • SHA256

    6143d920ebdd5e9b1db7425916417c0896139f425493a8fcd63d62dac80779f1

  • SHA512

    deb19457c7dbc5e865a919936dd9178f80722835fbce4d9f105ce5e6bb4afd8a56dc7b4bb6d3e4b902f88e5321d98ac4daeaa2027e88a3cc4c69d7566fdf1ffe

Score
8/10

Malware Config

Signatures

  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Deletes itself 1 IoCs
  • Drops desktop.ini file(s) 32 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6143d920ebdd5e9b1db7425916417c0896139f425493a8fcd63d62dac80779f1.bin.dll,#1
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\\0F7627BC.bat" "C:\Users\Admin\AppData\Local\Temp\6143d920ebdd5e9b1db7425916417c0896139f425493a8fcd63d62dac80779f1.bin.dll""
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\6143d920ebdd5e9b1db7425916417c0896139f425493a8fcd63d62dac80779f1.bin.dll"
        3⤵
        • Views/modifies file attributes
        PID:1480

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\0F7627BC.bat

    MD5

    348cae913e496198548854f5ff2f6d1e

    SHA1

    a07655b9020205bd47084afd62a8bb22b48c0cdc

    SHA256

    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

    SHA512

    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

  • memory/1480-56-0x0000000000000000-mapping.dmp

  • memory/1508-54-0x0000000000000000-mapping.dmp