Analysis

  • max time kernel
    169s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:32

General

  • Target

    042b6d8bf51e045ceab0a86d2847c2f172dd80545be003d29f10bf665871f754.exe

  • Size

    58KB

  • MD5

    8cca2dd08e8edd1c38c5d8e8fd5fa60a

  • SHA1

    eae31063a630a09a3e57cfeb421dcced13ce6f42

  • SHA256

    042b6d8bf51e045ceab0a86d2847c2f172dd80545be003d29f10bf665871f754

  • SHA512

    0fa54094ab578a81cd049ac98b2ce245d1a08f1db8993678b9d23853fdb91d5c1901f145d8ae745f6ee09710a22a0f360f8083ca7a3b02c618f482ef586b66fb

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 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\042b6d8bf51e045ceab0a86d2847c2f172dd80545be003d29f10bf665871f754.exe
    "C:\Users\Admin\AppData\Local\Temp\042b6d8bf51e045ceab0a86d2847c2f172dd80545be003d29f10bf665871f754.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3984
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1288
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\042b6d8bf51e045ceab0a86d2847c2f172dd80545be003d29f10bf665871f754.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2340
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3748
  • 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:2632
  • 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:212

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    04096e467bc6e1f2d8cbee24909da655

    SHA1

    f365daaaf3d4af6aaaeb9b4ef92ab49bd0c1aea6

    SHA256

    cfc519850dce877f6ad8017ddc390a34ce73c601d68a5d491d7dbf4ab9e4f80c

    SHA512

    415293707405cac842ae56cb53c288abe8afcac6de8517fe8356b1a91612c4b91ac9f49c7ce8699efd9764cb45272dc8c24470f607b94ef323cf852dedb9ca0e

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

    04096e467bc6e1f2d8cbee24909da655

    SHA1

    f365daaaf3d4af6aaaeb9b4ef92ab49bd0c1aea6

    SHA256

    cfc519850dce877f6ad8017ddc390a34ce73c601d68a5d491d7dbf4ab9e4f80c

    SHA512

    415293707405cac842ae56cb53c288abe8afcac6de8517fe8356b1a91612c4b91ac9f49c7ce8699efd9764cb45272dc8c24470f607b94ef323cf852dedb9ca0e