Analysis

  • max time kernel
    155s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:21

General

  • Target

    0a557152c4d7a7dde4ac095c3eaeb4b36b2257e40fcb8b2bd3550bc29ea8d34f.exe

  • Size

    60KB

  • MD5

    e997cacd159f887f2e3ac868916ee2bd

  • SHA1

    80cea80d0b2d2bb48b39e9258be88045da47cff7

  • SHA256

    0a557152c4d7a7dde4ac095c3eaeb4b36b2257e40fcb8b2bd3550bc29ea8d34f

  • SHA512

    0a1bff01a122e918ea460097c91fe364ac02bf4ba7af3ebb4a14328453ac83df8a9a6062441592159360306696d4194c4aedcb880386dd2bfe89122c3aec46ba

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 53 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a557152c4d7a7dde4ac095c3eaeb4b36b2257e40fcb8b2bd3550bc29ea8d34f.exe
    "C:\Users\Admin\AppData\Local\Temp\0a557152c4d7a7dde4ac095c3eaeb4b36b2257e40fcb8b2bd3550bc29ea8d34f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3264
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0a557152c4d7a7dde4ac095c3eaeb4b36b2257e40fcb8b2bd3550bc29ea8d34f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:556
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1304
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3632
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3972
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    9bd8f23be7f0bb388c621270efc580fa

    SHA1

    589b58197d2ae027c0765a83f74cf2ae2ded5dd8

    SHA256

    efb207332526889db6cbc657a44fbcf51c83f54530009159a33adaf2fce14c80

    SHA512

    1eaa80730e2a524507e02cfac26058d00bec14768075ae747db4ccd3ca805ce1650b276dbf755de2135212a5c838391ca70d747ce3bae0fd6500bdada7d0a740

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    9bd8f23be7f0bb388c621270efc580fa

    SHA1

    589b58197d2ae027c0765a83f74cf2ae2ded5dd8

    SHA256

    efb207332526889db6cbc657a44fbcf51c83f54530009159a33adaf2fce14c80

    SHA512

    1eaa80730e2a524507e02cfac26058d00bec14768075ae747db4ccd3ca805ce1650b276dbf755de2135212a5c838391ca70d747ce3bae0fd6500bdada7d0a740