Analysis

  • max time kernel
    170s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:41

General

  • Target

    0f3df777b087f711352bfe643a85951c2ef1ff3709c15f141f1e2743eb78d5b3.exe

  • Size

    144KB

  • MD5

    c89ebdecdac0d78e5469995cf1cda592

  • SHA1

    6dd265bc54a27f82563b9eeecad15382df63382f

  • SHA256

    0f3df777b087f711352bfe643a85951c2ef1ff3709c15f141f1e2743eb78d5b3

  • SHA512

    b44847d81ede4d864b174c9b93a7167411c265d22618e78f9ea0e9d16011b2c768d48621d5b95033593fe194bc6f0b5dc3c8811080e70201a29b0fc953d4a3f0

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 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 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.

  • Modifies data under HKEY_USERS 49 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\0f3df777b087f711352bfe643a85951c2ef1ff3709c15f141f1e2743eb78d5b3.exe
    "C:\Users\Admin\AppData\Local\Temp\0f3df777b087f711352bfe643a85951c2ef1ff3709c15f141f1e2743eb78d5b3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f3df777b087f711352bfe643a85951c2ef1ff3709c15f141f1e2743eb78d5b3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3388
  • 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:2952
  • 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:1328

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    d16798e4f538ba86c8c6afa20fe59724

    SHA1

    d13fb88855de6200d0aad759732c89f7a5cbd1eb

    SHA256

    6b01de787ac7b430237d494a24a6a2d25e5a7bba7e09a9019cf8d570c386eaa7

    SHA512

    958a32108f1dd10fb1410e75bc166375efab23707e8701d118679152bd7a461003242a15bea497df668425ac9a3a3e92e4a8dcb497a8b57ba6b21447209dd191

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

    MD5

    d16798e4f538ba86c8c6afa20fe59724

    SHA1

    d13fb88855de6200d0aad759732c89f7a5cbd1eb

    SHA256

    6b01de787ac7b430237d494a24a6a2d25e5a7bba7e09a9019cf8d570c386eaa7

    SHA512

    958a32108f1dd10fb1410e75bc166375efab23707e8701d118679152bd7a461003242a15bea497df668425ac9a3a3e92e4a8dcb497a8b57ba6b21447209dd191