Analysis

  • max time kernel
    166s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:12

General

  • Target

    0508eeb5a936996d2c7ab66e3bd7d8adcb0976b7c52a0354b5338237f39ff40c.exe

  • Size

    116KB

  • MD5

    b8fa06df4815bab1aa36ca0a58470ee4

  • SHA1

    359a9d15f5a50cb6681cc7c4b6b90f6279785c2b

  • SHA256

    0508eeb5a936996d2c7ab66e3bd7d8adcb0976b7c52a0354b5338237f39ff40c

  • SHA512

    6fbbdb5ef4864142cb8b6486c1b1efd9b261911f753835d289a49494510f7ae518696c3692b9f8cb3565d73eca82d18ea1bc92f19adb6d79a938d79663a26e4f

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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 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\0508eeb5a936996d2c7ab66e3bd7d8adcb0976b7c52a0354b5338237f39ff40c.exe
    "C:\Users\Admin\AppData\Local\Temp\0508eeb5a936996d2c7ab66e3bd7d8adcb0976b7c52a0354b5338237f39ff40c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1868
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0508eeb5a936996d2c7ab66e3bd7d8adcb0976b7c52a0354b5338237f39ff40c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1168
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3464
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3808
  • 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:1820
  • 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:3228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    0b66b34e860f064f40cf2b7aac77bc18

    SHA1

    ec1b2aceef8df8e86974fd9f442639fe3df47a42

    SHA256

    6c00245c2d9618fd05adf60d27c288afb17bf97fd7df4d9e945336d43b505f29

    SHA512

    f9cb17ae1542996aa01af452a85791fc9ee9ddab9184cd60162f53861ab1fa3d1d21d5411344b4f2b93ea0c665324a007e8483e92781d14c84667123a3e2ddff

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

    0b66b34e860f064f40cf2b7aac77bc18

    SHA1

    ec1b2aceef8df8e86974fd9f442639fe3df47a42

    SHA256

    6c00245c2d9618fd05adf60d27c288afb17bf97fd7df4d9e945336d43b505f29

    SHA512

    f9cb17ae1542996aa01af452a85791fc9ee9ddab9184cd60162f53861ab1fa3d1d21d5411344b4f2b93ea0c665324a007e8483e92781d14c84667123a3e2ddff

  • memory/1224-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1868-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB