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Analysis

  • max time kernel
    168s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 00:37

General

  • Target

    c9a23374473a464d9008c9e9a0006faaa4c9d09e22f2e472935d32c4d95ee9d1.exe

  • Size

    228KB

  • MD5

    64f71d48982c65a907dc40199cf1557a

  • SHA1

    7ec5ac5ff1caf8d3b1f7a348c069353aad41dcd6

  • SHA256

    c9a23374473a464d9008c9e9a0006faaa4c9d09e22f2e472935d32c4d95ee9d1

  • SHA512

    aa2fca0d979ae3bac8f7beec2ebc89709ef5b7906eaaa622c5528565e7e6afd5ad57a0914e7ad4d39ce87719db0fbdb23d9a8ef6442d53f5e90a34972afb68d7

  • SSDEEP

    3072:6gEty/i5UYJVFV5eDQHsuvNA05Vqtto24VmcZMUuXi46qndrAxIbYpWv:oy+3JrLeDQHr+uV0to24VmlUuSvqdl

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 55 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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9a23374473a464d9008c9e9a0006faaa4c9d09e22f2e472935d32c4d95ee9d1.exe
    "C:\Users\Admin\AppData\Local\Temp\c9a23374473a464d9008c9e9a0006faaa4c9d09e22f2e472935d32c4d95ee9d1.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Users\Admin\tueif.exe
      "C:\Users\Admin\tueif.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:5028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\tueif.exe

    Filesize

    228KB

    MD5

    67ac8f43732b923b68be451c23be2710

    SHA1

    c66d71863eabedbc261cd3e77fbe1fea1abd5fa9

    SHA256

    0cdc59a24d0becade4f3817638179010755006ee664d2d5c650f612811c51e07

    SHA512

    1fcb9445631880050e171bc9b8bd0c257ece1dff70b4e7a0172eaec0ba0037386919a82e2422d4f76b87103f6cb0149cc8247ab528fa4dac3d0eaefac91ee1b9

  • C:\Users\Admin\tueif.exe

    Filesize

    228KB

    MD5

    67ac8f43732b923b68be451c23be2710

    SHA1

    c66d71863eabedbc261cd3e77fbe1fea1abd5fa9

    SHA256

    0cdc59a24d0becade4f3817638179010755006ee664d2d5c650f612811c51e07

    SHA512

    1fcb9445631880050e171bc9b8bd0c257ece1dff70b4e7a0172eaec0ba0037386919a82e2422d4f76b87103f6cb0149cc8247ab528fa4dac3d0eaefac91ee1b9

  • memory/1560-134-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1560-135-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/5028-141-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/5028-142-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB