Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:10

General

  • Target

    0520209e0df888bf2c1795d646f3ac0c05548c4d2ff6e49ee166a6b2881a20e3.exe

  • Size

    216KB

  • MD5

    2657492c6c27910c9b404b666bfd763c

  • SHA1

    e79340b46c51df47a0bb5ef795ac0eabd5f71d7b

  • SHA256

    0520209e0df888bf2c1795d646f3ac0c05548c4d2ff6e49ee166a6b2881a20e3

  • SHA512

    a069b83ced202ed3fbb7140ffc41cda748226531a29963ca8d9f897599738e0b46eb4c0e1c40a76d64a0d9b127cfd15b0d9abcf7ff3ab3557815ad7d8e8cf3c7

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 51 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\0520209e0df888bf2c1795d646f3ac0c05548c4d2ff6e49ee166a6b2881a20e3.exe
    "C:\Users\Admin\AppData\Local\Temp\0520209e0df888bf2c1795d646f3ac0c05548c4d2ff6e49ee166a6b2881a20e3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2112
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0520209e0df888bf2c1795d646f3ac0c05548c4d2ff6e49ee166a6b2881a20e3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1216
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:332
  • 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:2120
  • 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:3300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    cf4f1abbcbb6d0290245fe454022549a

    SHA1

    cd3feb3bda7c77bdccfa0b9a2ddd0c38ea3f5c61

    SHA256

    f1dfdd0865d9bc3d131ef8d2d5411d235ef997af9a341b314dc0195cc768879d

    SHA512

    0346a7322282a6c77630e8a2607c027f47c7038d5c79914fe38b3a2d1d694e4547ad283e331eaf1c636ae9b2cba67a0db423ccec92d0e15fd68b05b7c1f8c3e4

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

    cf4f1abbcbb6d0290245fe454022549a

    SHA1

    cd3feb3bda7c77bdccfa0b9a2ddd0c38ea3f5c61

    SHA256

    f1dfdd0865d9bc3d131ef8d2d5411d235ef997af9a341b314dc0195cc768879d

    SHA512

    0346a7322282a6c77630e8a2607c027f47c7038d5c79914fe38b3a2d1d694e4547ad283e331eaf1c636ae9b2cba67a0db423ccec92d0e15fd68b05b7c1f8c3e4

  • memory/1100-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2112-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB