Analysis

  • max time kernel
    148s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:00

General

  • Target

    18d00f31780680c6e04601ab004172d938e9f4017fa4f29fcfe6101e05ac334b.exe

  • Size

    58KB

  • MD5

    2111837035b997e7bcb417a242fc3b16

  • SHA1

    606d764a52da53475732a7d7189b0594162a10b1

  • SHA256

    18d00f31780680c6e04601ab004172d938e9f4017fa4f29fcfe6101e05ac334b

  • SHA512

    7f784c64ac97cd86c997348a1e93db48cc44934e1543d1b78aa4a539509e628790f390b5651d9157ea7c7e006498b221976f5342263013e6a407c555cdcc78aa

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 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\18d00f31780680c6e04601ab004172d938e9f4017fa4f29fcfe6101e05ac334b.exe
    "C:\Users\Admin\AppData\Local\Temp\18d00f31780680c6e04601ab004172d938e9f4017fa4f29fcfe6101e05ac334b.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1016
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18d00f31780680c6e04601ab004172d938e9f4017fa4f29fcfe6101e05ac334b.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3572
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3424
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3572
  • 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:408
  • 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:3308

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    be2076c454fa7eb2c86a477fcb83c602

    SHA1

    f8504a3de0efbadcc884e6d57da77e5710ca4925

    SHA256

    54113a782e1322f76508c92e0a743e9be6a2dd8b81c0cc6b453a954ca2d408a8

    SHA512

    b3f1cb0559c8c6fd0fcde6cf4c63ebd5fd4df3f6ea4371a5263a476ee38ae6bd94b2c375b00e878314311cb3aefaf03917f16d84e41605936b7f59300cf513bc

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

    MD5

    be2076c454fa7eb2c86a477fcb83c602

    SHA1

    f8504a3de0efbadcc884e6d57da77e5710ca4925

    SHA256

    54113a782e1322f76508c92e0a743e9be6a2dd8b81c0cc6b453a954ca2d408a8

    SHA512

    b3f1cb0559c8c6fd0fcde6cf4c63ebd5fd4df3f6ea4371a5263a476ee38ae6bd94b2c375b00e878314311cb3aefaf03917f16d84e41605936b7f59300cf513bc