Analysis

  • max time kernel
    155s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:26

General

  • Target

    0a14cb86e67e05db73b95614a3267bee6749dbf590a3770a64c3a3b2a127f3e4.exe

  • Size

    36KB

  • MD5

    c1308f13be2f8a0438b154ebf6acdd32

  • SHA1

    619635941243f86d2c22049edf59fc966c8439d4

  • SHA256

    0a14cb86e67e05db73b95614a3267bee6749dbf590a3770a64c3a3b2a127f3e4

  • SHA512

    1efa243e33b2bc0323d40b724f26cceed4f891c06899653ad875f35cf077f3509985ade4bb3e1ed675ea1d552a58b40537391fb95e5ac09e1b51615460524623

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 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\0a14cb86e67e05db73b95614a3267bee6749dbf590a3770a64c3a3b2a127f3e4.exe
    "C:\Users\Admin\AppData\Local\Temp\0a14cb86e67e05db73b95614a3267bee6749dbf590a3770a64c3a3b2a127f3e4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0a14cb86e67e05db73b95614a3267bee6749dbf590a3770a64c3a3b2a127f3e4.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3584
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2220
  • 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:3688
  • 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:2304

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    127f880ccef30d81332c5c28d9e1b99f

    SHA1

    e888ff4930a152786e96c5808e32d919d2f86982

    SHA256

    19234b6038d56b4631d0f626e2298704e0f6d0d032c883a983f515c4ff0c98de

    SHA512

    cd9f5380966f584c795d12f8f7651e616a8c600f7d3dbac38fbfd81fd96d2c5488be783dfa3dba23b21858a7e368502fbd297a5e0778e15c359ece46b8714da5

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

    127f880ccef30d81332c5c28d9e1b99f

    SHA1

    e888ff4930a152786e96c5808e32d919d2f86982

    SHA256

    19234b6038d56b4631d0f626e2298704e0f6d0d032c883a983f515c4ff0c98de

    SHA512

    cd9f5380966f584c795d12f8f7651e616a8c600f7d3dbac38fbfd81fd96d2c5488be783dfa3dba23b21858a7e368502fbd297a5e0778e15c359ece46b8714da5