Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:30

General

  • Target

    09d065faf34378cbaf232d14a8fc3728957551983c7dcc214840b287b0ccf65e.exe

  • Size

    36KB

  • MD5

    e1dc423f3ae47863386617e294d9aee3

  • SHA1

    11474802648aa402b1bc56e514984e8992985543

  • SHA256

    09d065faf34378cbaf232d14a8fc3728957551983c7dcc214840b287b0ccf65e

  • SHA512

    fb2af136dbdb1f68452f101b52fe8b82d0c52971df03752195cbb3892795d2b8c2c0d6a63778b582d93d5d0b49c9222a58a1ecfcf25c11a658d076fc979e27ba

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 56 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\09d065faf34378cbaf232d14a8fc3728957551983c7dcc214840b287b0ccf65e.exe
    "C:\Users\Admin\AppData\Local\Temp\09d065faf34378cbaf232d14a8fc3728957551983c7dcc214840b287b0ccf65e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3340
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2412
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09d065faf34378cbaf232d14a8fc3728957551983c7dcc214840b287b0ccf65e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2964
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2712
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3788
  • 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:3892
  • 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:3684

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    10ea2565f8985b8fa27dec7a7b818363

    SHA1

    4bf15d9f2dafcf3a2bdb316163e4dc6468f423fa

    SHA256

    9495ab4ec020cda09870dbd58bd065f5a9b3c7361f19d8a9e1e6423fbc30a96b

    SHA512

    15adfadd53f70712a071011d0f7cfa0726a40ea5d4855db08067780f684278883c3b78445d44f04fbfa5660fcc6fb2115f6349d6a24683a1c647eedfcf45ec52

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

    10ea2565f8985b8fa27dec7a7b818363

    SHA1

    4bf15d9f2dafcf3a2bdb316163e4dc6468f423fa

    SHA256

    9495ab4ec020cda09870dbd58bd065f5a9b3c7361f19d8a9e1e6423fbc30a96b

    SHA512

    15adfadd53f70712a071011d0f7cfa0726a40ea5d4855db08067780f684278883c3b78445d44f04fbfa5660fcc6fb2115f6349d6a24683a1c647eedfcf45ec52