Analysis

  • max time kernel
    181s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:23

General

  • Target

    17bcdbeca03d7b7713b8994f8019ddcebcfce52f666e078760262641b9443a7a.exe

  • Size

    100KB

  • MD5

    9d2b371cf65733029fc71ff271491e1c

  • SHA1

    8cd06ecf9d5590bad1c31bca681dcce651260daf

  • SHA256

    17bcdbeca03d7b7713b8994f8019ddcebcfce52f666e078760262641b9443a7a

  • SHA512

    c0522b6822b39bebe8de02b137c85a7c5a3f68660983bb588664ae863507961bad5c2cc6203c9a420b9cf007690ffee8d628fdcf4b72c4a8313c1b6802494ef1

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • 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\17bcdbeca03d7b7713b8994f8019ddcebcfce52f666e078760262641b9443a7a.exe
    "C:\Users\Admin\AppData\Local\Temp\17bcdbeca03d7b7713b8994f8019ddcebcfce52f666e078760262641b9443a7a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2148
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\17bcdbeca03d7b7713b8994f8019ddcebcfce52f666e078760262641b9443a7a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3284
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3176
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1460
  • 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:3084
  • 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:3104

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    f7dae88e5eab17634b3b549369501761

    SHA1

    134235b7d9a01fdb3212f4b86dad073c3ad0f3ae

    SHA256

    c769795b4951b68fbf5fd2f03554860c0bf76d2fbfcbb3d33e4906942a36188a

    SHA512

    a50050ccbb94ad7e5c43a40fe19d41a3b938d1b056227a7018df69d6f589e30b9f30b8ee5780b3e6594694c435800760cb7f23de78af6e24bc9a10e8dec09399

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

    MD5

    f7dae88e5eab17634b3b549369501761

    SHA1

    134235b7d9a01fdb3212f4b86dad073c3ad0f3ae

    SHA256

    c769795b4951b68fbf5fd2f03554860c0bf76d2fbfcbb3d33e4906942a36188a

    SHA512

    a50050ccbb94ad7e5c43a40fe19d41a3b938d1b056227a7018df69d6f589e30b9f30b8ee5780b3e6594694c435800760cb7f23de78af6e24bc9a10e8dec09399