Analysis

  • max time kernel
    153s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:33

General

  • Target

    09ad2fd00f014873e9fe0b673604e3ff15c47b89c5c3808bb1a6ed58023921f9.exe

  • Size

    58KB

  • MD5

    d0610703cf623d5a13da4f965ebd3cc1

  • SHA1

    204d7fe858f4d14b2c802f1b8277e43e3cad1bcc

  • SHA256

    09ad2fd00f014873e9fe0b673604e3ff15c47b89c5c3808bb1a6ed58023921f9

  • SHA512

    09453f889a2d9d5bc1048fb78efa006cb15ab04fd46c6be951c39b90658ee86aac6cbc0be643e17f0350e953d44d9d9ff3402099ebf4030daf3e30ad0c128057

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 54 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\09ad2fd00f014873e9fe0b673604e3ff15c47b89c5c3808bb1a6ed58023921f9.exe
    "C:\Users\Admin\AppData\Local\Temp\09ad2fd00f014873e9fe0b673604e3ff15c47b89c5c3808bb1a6ed58023921f9.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1692
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2476
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09ad2fd00f014873e9fe0b673604e3ff15c47b89c5c3808bb1a6ed58023921f9.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3752
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2076
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3912
  • 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:3824
  • 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:3884

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    e08ff482ab3c6c90662723dedf87dd2a

    SHA1

    7c937130267fae868ce4b700cdde198a410fd91f

    SHA256

    1d37bb2ca4a05c84d377e446fb32a54ca66f88df6e4663ff2b8872f568b1d299

    SHA512

    fd6b5189a6f1858adeb8626938a652550503de02c150024d2fb3464e58fa8bedc652a681ac24476689916004f0ef98b08f622cb88a9350aaea7d48872a503df5

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

    e08ff482ab3c6c90662723dedf87dd2a

    SHA1

    7c937130267fae868ce4b700cdde198a410fd91f

    SHA256

    1d37bb2ca4a05c84d377e446fb32a54ca66f88df6e4663ff2b8872f568b1d299

    SHA512

    fd6b5189a6f1858adeb8626938a652550503de02c150024d2fb3464e58fa8bedc652a681ac24476689916004f0ef98b08f622cb88a9350aaea7d48872a503df5