Analysis

  • max time kernel
    168s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 12:08

General

  • Target

    0270345879fb308a2ede27d2789a7e38081527c2ef13688d8c95c1d14742231a.exe

  • Size

    60KB

  • MD5

    c1d79885377e656a54014f182de5dcd9

  • SHA1

    445c9f23ed3584be643a8d42c745f75de5bffcb3

  • SHA256

    0270345879fb308a2ede27d2789a7e38081527c2ef13688d8c95c1d14742231a

  • SHA512

    a8904cb663b10009cc2417bb92a8bf8d2885add8b4d5ba97ecd6602473f4d1ec21f342f83504206e01a55d7202699e4b3a07168b9e7a1273953b516624585710

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 48 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\0270345879fb308a2ede27d2789a7e38081527c2ef13688d8c95c1d14742231a.exe
    "C:\Users\Admin\AppData\Local\Temp\0270345879fb308a2ede27d2789a7e38081527c2ef13688d8c95c1d14742231a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0270345879fb308a2ede27d2789a7e38081527c2ef13688d8c95c1d14742231a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:32
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3988
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:3828
  • 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:904
  • 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:2172

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    f76651079032b6618b9cd1aeb216ae35

    SHA1

    7007fc8d46d69c0f27973d3d4309140840028982

    SHA256

    739c2c58f898406b5ab3fe28f1ff5f036161ac192739224a7147d4c5528d37ef

    SHA512

    013822536a809114ba649083b0a8559710663f2595b1c2d3e64f233666f7d3875ee5ce70db49f19630cef58d7e6b1f57bdabec6ed607b4448ed1ea4a7ca29cc8

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

    f76651079032b6618b9cd1aeb216ae35

    SHA1

    7007fc8d46d69c0f27973d3d4309140840028982

    SHA256

    739c2c58f898406b5ab3fe28f1ff5f036161ac192739224a7147d4c5528d37ef

    SHA512

    013822536a809114ba649083b0a8559710663f2595b1c2d3e64f233666f7d3875ee5ce70db49f19630cef58d7e6b1f57bdabec6ed607b4448ed1ea4a7ca29cc8