Analysis

  • max time kernel
    169s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:47

General

  • Target

    11b54c88debecad0789e9c753bc5ebfcaa8f2a935e5358b0e1d372469d444dc3.exe

  • Size

    216KB

  • MD5

    654fc7b83187f96c87ca823a620b4919

  • SHA1

    ef94d8033dbb5f92a3fb2c34039eea465292e7f6

  • SHA256

    11b54c88debecad0789e9c753bc5ebfcaa8f2a935e5358b0e1d372469d444dc3

  • SHA512

    ef60ad31940924c122aa393ea07e76180aeaa096530dda3380a73b39719a02551403a994d471da542ee871ad7434eceeaf19f16b48bd87c14e586ff245c10a9b

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 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\11b54c88debecad0789e9c753bc5ebfcaa8f2a935e5358b0e1d372469d444dc3.exe
    "C:\Users\Admin\AppData\Local\Temp\11b54c88debecad0789e9c753bc5ebfcaa8f2a935e5358b0e1d372469d444dc3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:636
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\11b54c88debecad0789e9c753bc5ebfcaa8f2a935e5358b0e1d372469d444dc3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1848
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:968
  • 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:2196
  • 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:1616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    404b82563d99118f9842024a2e2e586c

    SHA1

    a74d2ca3c5b77078298e1ac0b0cb159258a4baeb

    SHA256

    9ac826e605b2708317bf77de6b15808ac37d3854c1e0224afbd92a7a0b46ba0c

    SHA512

    36debb849ec385f9a1efd05c48de31b173d7b9212f91970432351e2be9f2b6e47757846f0c97684a74497dc588cf0fcef2fc52b41df59947919c343eb788a7d5

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

    MD5

    404b82563d99118f9842024a2e2e586c

    SHA1

    a74d2ca3c5b77078298e1ac0b0cb159258a4baeb

    SHA256

    9ac826e605b2708317bf77de6b15808ac37d3854c1e0224afbd92a7a0b46ba0c

    SHA512

    36debb849ec385f9a1efd05c48de31b173d7b9212f91970432351e2be9f2b6e47757846f0c97684a74497dc588cf0fcef2fc52b41df59947919c343eb788a7d5

  • memory/2612-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB