Analysis

  • max time kernel
    163s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:34

General

  • Target

    1253b29c4c199eab010818ba2fddf57952bfcda54d8861a56a6c429e1ebc3c42.exe

  • Size

    192KB

  • MD5

    4113284d22657961b0a08db47ece9944

  • SHA1

    c2f0f2d20261d920a5f4e924ecb7a9d2adc9b48e

  • SHA256

    1253b29c4c199eab010818ba2fddf57952bfcda54d8861a56a6c429e1ebc3c42

  • SHA512

    403a82c184d310133520591b1a4d1df380e9688a7062470fe5ada1459d7a20e998df9879bc605bdd8f570f9a47b5644c99a7f9a3293179ef78b1591370f2c42e

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 2 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 46 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\1253b29c4c199eab010818ba2fddf57952bfcda54d8861a56a6c429e1ebc3c42.exe
    "C:\Users\Admin\AppData\Local\Temp\1253b29c4c199eab010818ba2fddf57952bfcda54d8861a56a6c429e1ebc3c42.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3408
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1253b29c4c199eab010818ba2fddf57952bfcda54d8861a56a6c429e1ebc3c42.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1348
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1800
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • 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:3728

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    f320e070d6a6ece9a0e932ccfb1c1596

    SHA1

    fc79ec09c25d005b4a83d984bfee00661d525396

    SHA256

    a3c89e7a0c7c073f34216d117565b282f53e1665a2cfe967f6513ccf0a841b6e

    SHA512

    96942d5792f82934592f2781997201fc14d1ff835b6c1d491c724134a2e4ed42950e085375624f08a7d6ac5307fe2fed125d94384aca8565fc63378629804bf8

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

    MD5

    f320e070d6a6ece9a0e932ccfb1c1596

    SHA1

    fc79ec09c25d005b4a83d984bfee00661d525396

    SHA256

    a3c89e7a0c7c073f34216d117565b282f53e1665a2cfe967f6513ccf0a841b6e

    SHA512

    96942d5792f82934592f2781997201fc14d1ff835b6c1d491c724134a2e4ed42950e085375624f08a7d6ac5307fe2fed125d94384aca8565fc63378629804bf8