Analysis

  • max time kernel
    145s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:13

General

  • Target

    04f97471bdb347bf70329dd3f508dbbf917398c56dc1b3c1127087ee3fd4a825.exe

  • Size

    36KB

  • MD5

    e3ada4312a329d9366a48ea160d2123d

  • SHA1

    3b7e7b821a29639b1c59677c2e7d38ef46dab43d

  • SHA256

    04f97471bdb347bf70329dd3f508dbbf917398c56dc1b3c1127087ee3fd4a825

  • SHA512

    66d71b38504f60faf04e93c7e3a12967b19d5e29630c50c560bd2848624d2ce6002f869c18bc792a12e2343d28a9213ba3bf61d638b3056b3ff893c322564135

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 53 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\04f97471bdb347bf70329dd3f508dbbf917398c56dc1b3c1127087ee3fd4a825.exe
    "C:\Users\Admin\AppData\Local\Temp\04f97471bdb347bf70329dd3f508dbbf917398c56dc1b3c1127087ee3fd4a825.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3544
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04f97471bdb347bf70329dd3f508dbbf917398c56dc1b3c1127087ee3fd4a825.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2056
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3728
  • 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:2016
  • 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:3788

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    e0565d973442e6686cee536172b6e370

    SHA1

    755fbb3371e5cc343da27c9a91d99f2baca8ba7d

    SHA256

    af0f78fe362487fac78725bdeffc764dc525534c89d4c0d7e4ddb15cdc5fcec7

    SHA512

    8a9bd3ba112b023c99966dc4b6ebc9cfbfd9f3d46dfd1fa387650ad6266414b3a07f028d7f2818a91428397d7f08f26ffd0110d1fd768cfce04bd36c90421bed

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

    e0565d973442e6686cee536172b6e370

    SHA1

    755fbb3371e5cc343da27c9a91d99f2baca8ba7d

    SHA256

    af0f78fe362487fac78725bdeffc764dc525534c89d4c0d7e4ddb15cdc5fcec7

    SHA512

    8a9bd3ba112b023c99966dc4b6ebc9cfbfd9f3d46dfd1fa387650ad6266414b3a07f028d7f2818a91428397d7f08f26ffd0110d1fd768cfce04bd36c90421bed