Analysis

  • max time kernel
    150s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2022 10:37

General

  • Target

    cdaa4075259d357b780e89dee5f54f13c69dfa9861f06af608f6fc2513b54b64.exe

  • Size

    140KB

  • MD5

    2f37107f3eeca69aa15a889c2ab104ca

  • SHA1

    48f4aa6e5115af769cc64908028bd6cca3e14b92

  • SHA256

    cdaa4075259d357b780e89dee5f54f13c69dfa9861f06af608f6fc2513b54b64

  • SHA512

    42aeb7f6b64b99b341043911f8eddb0104d5133e7a8e19de6aa9ff188ce4e1fa37769b389a1c3296284f82ab6ee2c1851cd941df6a44dc4cb6b8e24136439b7c

  • SSDEEP

    1536:YnpFcf/VwssUfw5GZS5u61rC634cmY77UsMJXGoQDnzqLcTJLO01DvqlWgB0gyn8:mpFcftRLYt77UsMJXGoFDwfG

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdaa4075259d357b780e89dee5f54f13c69dfa9861f06af608f6fc2513b54b64.exe
    "C:\Users\Admin\AppData\Local\Temp\cdaa4075259d357b780e89dee5f54f13c69dfa9861f06af608f6fc2513b54b64.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\vouheo.exe
      "C:\Users\Admin\vouheo.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\vouheo.exe

    Filesize

    140KB

    MD5

    5e3ca9614a801a250b62f898b0198668

    SHA1

    5681912653839f66bbb489cad9a1de85e12ba7cf

    SHA256

    7f443b7af446e9ef8dff934824edd3d672c119eccaa3b6eb5ca9cf4582287662

    SHA512

    8c88f593bd8bc2a5c690a1aac96ae137040c95d8171bfc19bd12525e654f3eec9fc2d31144ef8367ad7280bc6c92e91c576e8ad62e3ac91f123fab7afbf4dc89

  • C:\Users\Admin\vouheo.exe

    Filesize

    140KB

    MD5

    5e3ca9614a801a250b62f898b0198668

    SHA1

    5681912653839f66bbb489cad9a1de85e12ba7cf

    SHA256

    7f443b7af446e9ef8dff934824edd3d672c119eccaa3b6eb5ca9cf4582287662

    SHA512

    8c88f593bd8bc2a5c690a1aac96ae137040c95d8171bfc19bd12525e654f3eec9fc2d31144ef8367ad7280bc6c92e91c576e8ad62e3ac91f123fab7afbf4dc89

  • \Users\Admin\vouheo.exe

    Filesize

    140KB

    MD5

    5e3ca9614a801a250b62f898b0198668

    SHA1

    5681912653839f66bbb489cad9a1de85e12ba7cf

    SHA256

    7f443b7af446e9ef8dff934824edd3d672c119eccaa3b6eb5ca9cf4582287662

    SHA512

    8c88f593bd8bc2a5c690a1aac96ae137040c95d8171bfc19bd12525e654f3eec9fc2d31144ef8367ad7280bc6c92e91c576e8ad62e3ac91f123fab7afbf4dc89

  • \Users\Admin\vouheo.exe

    Filesize

    140KB

    MD5

    5e3ca9614a801a250b62f898b0198668

    SHA1

    5681912653839f66bbb489cad9a1de85e12ba7cf

    SHA256

    7f443b7af446e9ef8dff934824edd3d672c119eccaa3b6eb5ca9cf4582287662

    SHA512

    8c88f593bd8bc2a5c690a1aac96ae137040c95d8171bfc19bd12525e654f3eec9fc2d31144ef8367ad7280bc6c92e91c576e8ad62e3ac91f123fab7afbf4dc89

  • memory/1348-54-0x0000000075601000-0x0000000075603000-memory.dmp

    Filesize

    8KB