Analysis

  • max time kernel
    151s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:29

General

  • Target

    09eede63d5a96ad6bb0e47aabf12488425834935657554b877c6ccf25bbbaab3.exe

  • Size

    116KB

  • MD5

    a0354d25afa96e96d644d0a7475293bb

  • SHA1

    527be7be65e2276bd8bb1b09f7739d79742d642c

  • SHA256

    09eede63d5a96ad6bb0e47aabf12488425834935657554b877c6ccf25bbbaab3

  • SHA512

    3a9a8fc73188d51258d535373362c4e0c9bfd81aea3d4e4f7cac3e055129768fd9302503296ad34692afd6b6746612d0b527745d7069913b180a76fead6b32ee

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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 55 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\09eede63d5a96ad6bb0e47aabf12488425834935657554b877c6ccf25bbbaab3.exe
    "C:\Users\Admin\AppData\Local\Temp\09eede63d5a96ad6bb0e47aabf12488425834935657554b877c6ccf25bbbaab3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1884
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09eede63d5a96ad6bb0e47aabf12488425834935657554b877c6ccf25bbbaab3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3244
  • 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:3976
  • 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:3024

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    956fdffb0df3f3bceb04c64eff915263

    SHA1

    684ed58a538d09ce09ec16a8a0a9b3f1af441fc5

    SHA256

    c258060d2b2e769d39337c9ff0f10b7b31aad7aa35e014279b7faf456476aba8

    SHA512

    e5b9ebb74c4149454f0b4d7b49bb326cd6617ffdaefad1b4941cbd4d2838af27440d01fb3e5631e16de610716d783cbc18a3e3c575e071ee2e1c55b6344a7a7b

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

    956fdffb0df3f3bceb04c64eff915263

    SHA1

    684ed58a538d09ce09ec16a8a0a9b3f1af441fc5

    SHA256

    c258060d2b2e769d39337c9ff0f10b7b31aad7aa35e014279b7faf456476aba8

    SHA512

    e5b9ebb74c4149454f0b4d7b49bb326cd6617ffdaefad1b4941cbd4d2838af27440d01fb3e5631e16de610716d783cbc18a3e3c575e071ee2e1c55b6344a7a7b

  • memory/1884-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/4056-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB