Analysis

  • max time kernel
    178s
  • max time network
    195s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:12

General

  • Target

    1365540841658811df52455d245e04350775d077b92dcf235dd32828a59899d7.exe

  • Size

    92KB

  • MD5

    cf58bdfe6de9fae3d3f3ad754cf9a140

  • SHA1

    cd33d62005886294e74915dbe97454491cb23783

  • SHA256

    1365540841658811df52455d245e04350775d077b92dcf235dd32828a59899d7

  • SHA512

    a6956f8daa32043003bc07bd2a86331e7e65b85b6149abab2838d7350fc572471061d265bb7d30cd71cffeede3026a3f2017dcac6bddb62dfc57fc7dadf2088e

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 49 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\1365540841658811df52455d245e04350775d077b92dcf235dd32828a59899d7.exe
    "C:\Users\Admin\AppData\Local\Temp\1365540841658811df52455d245e04350775d077b92dcf235dd32828a59899d7.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4084
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1365540841658811df52455d245e04350775d077b92dcf235dd32828a59899d7.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2480
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:844
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:788
  • 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:312
  • 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:540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    143826786e74d8f8f2f6e20be75a82d3

    SHA1

    7de6eca3845d91a6a0fdf6c1902b83e3b0ba7a98

    SHA256

    3e1fd8fd01803df96022ee9b71a9c2518ab896e5236050a8cf3bfadadedfc497

    SHA512

    42abbe0a40bfd90514e5f68170992bacc659d02422686ff24cce733d49c58c8c7f9eb2f037924265b30dfc21ef20e4e3b1c83f726293e7fb9d1c4f225cb5360d

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

    MD5

    143826786e74d8f8f2f6e20be75a82d3

    SHA1

    7de6eca3845d91a6a0fdf6c1902b83e3b0ba7a98

    SHA256

    3e1fd8fd01803df96022ee9b71a9c2518ab896e5236050a8cf3bfadadedfc497

    SHA512

    42abbe0a40bfd90514e5f68170992bacc659d02422686ff24cce733d49c58c8c7f9eb2f037924265b30dfc21ef20e4e3b1c83f726293e7fb9d1c4f225cb5360d