Analysis

  • max time kernel
    176s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:44

General

  • Target

    038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe

  • Size

    176KB

  • MD5

    592581c6d1fcb2f85842c7a0b809a51a

  • SHA1

    c632382723fa8c166db7fc0a94e1c222e73b56cf

  • SHA256

    038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b

  • SHA512

    a2e765375630af229d67013b730b2377f778ef7cf6518fdee78a81b6288dadb7d2eb7a02c2fab5b9f772278493e494fd94e305c190dae314165d2ed09b850ce0

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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\038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe
    "C:\Users\Admin\AppData\Local\Temp\038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.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:1780
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3488
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2932
  • 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:3764
  • 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:2064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    6f9f0e44430e04df4468654fe575920a

    SHA1

    57b87fc8815719224e3d1b8571f3aefacae47850

    SHA256

    3bcef83b0c59e4bcc5e38c79da416a15e191106d42a33593260e4ea3657bcb8e

    SHA512

    1c03284396ff5b35b03eeb9b57449f8af95bc4010ecace410f21a7816cda407b59934a6cb85f78cd54efa258e2ea39670400a555f13565dafcf4f99b01bf087d

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

    MD5

    6f9f0e44430e04df4468654fe575920a

    SHA1

    57b87fc8815719224e3d1b8571f3aefacae47850

    SHA256

    3bcef83b0c59e4bcc5e38c79da416a15e191106d42a33593260e4ea3657bcb8e

    SHA512

    1c03284396ff5b35b03eeb9b57449f8af95bc4010ecace410f21a7816cda407b59934a6cb85f78cd54efa258e2ea39670400a555f13565dafcf4f99b01bf087d

  • memory/3984-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB