Analysis

  • max time kernel
    158s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 12:06

General

  • Target

    0279708bd8c078afbe4998073b8ca045df9c81971809edafee04c1a5ec33a9cf.exe

  • Size

    99KB

  • MD5

    bf47be29c6c975e59e4e1f1e779bc270

  • SHA1

    c9bd4aa6db351bef277412984942cb0b331707f9

  • SHA256

    0279708bd8c078afbe4998073b8ca045df9c81971809edafee04c1a5ec33a9cf

  • SHA512

    336c4c5c5121ade5219c87b48d0d8284253be903cba9652a04b32d8b97cc975666e3665ccbdc1275bb1a8b2bf55e151aa081f53f746cbaa45a38c0d47d963181

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 2 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 46 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\0279708bd8c078afbe4998073b8ca045df9c81971809edafee04c1a5ec33a9cf.exe
    "C:\Users\Admin\AppData\Local\Temp\0279708bd8c078afbe4998073b8ca045df9c81971809edafee04c1a5ec33a9cf.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0279708bd8c078afbe4998073b8ca045df9c81971809edafee04c1a5ec33a9cf.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:432
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3824
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:4064
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Modifies data under HKEY_USERS
    PID:364
  • 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:692

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    426202241cc0081590fc68b333179761

    SHA1

    8c3e30ff3fee65c15b506d028f4fe3f26afe7e8d

    SHA256

    7b7e98d0cc76eaaff7b9a4d9f8c43c44d18506ae5ad03fad2cec11f791e3cb2f

    SHA512

    06a11941dbdbdca8e1554f31901b564863c4f3f8d40b3517373474d9d9c791909cb05221c92de2ed139118c9345d51e55d7f588526f2f0d573c0938f6ca9208f

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

    426202241cc0081590fc68b333179761

    SHA1

    8c3e30ff3fee65c15b506d028f4fe3f26afe7e8d

    SHA256

    7b7e98d0cc76eaaff7b9a4d9f8c43c44d18506ae5ad03fad2cec11f791e3cb2f

    SHA512

    06a11941dbdbdca8e1554f31901b564863c4f3f8d40b3517373474d9d9c791909cb05221c92de2ed139118c9345d51e55d7f588526f2f0d573c0938f6ca9208f