Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:44

General

  • Target

    0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe

  • Size

    217KB

  • MD5

    f6629e94d83b57f50188ef210a9eda69

  • SHA1

    4bfdcfd2c62b287916a3dd38036e01a6bbfb86d3

  • SHA256

    0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89

  • SHA512

    6c3ae11547ce322b4a849fd56295077b5682089fd7f421d34834622f516375084e0115f29a42039f0eaa50b08cb87e9df4717b4152fab8b093d8f2ee75c00080

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 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\0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe
    "C:\Users\Admin\AppData\Local\Temp\0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1512
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3488
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1936
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:380
  • 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:1748
  • 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:3408

Network

MITRE ATT&CK Enterprise v6

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Downloads

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

    89871eb34554ec0770be3658da68b0d2

    SHA1

    bd7f63fbed7221694deaa8c4d92615f872ec43fb

    SHA256

    b3d52ccb252a6d0d4367a9318b5c2879c7cb3b208d65f505bad8b8196ae1c9b0

    SHA512

    6d59633535278ba4eb348a617d347ba3700c0bae34671872447481e58b9ab6829976eeb2701693d7d6a3b5d7ca91bab34bffcbaa16a11c3bacecbffa2de90efa

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

    89871eb34554ec0770be3658da68b0d2

    SHA1

    bd7f63fbed7221694deaa8c4d92615f872ec43fb

    SHA256

    b3d52ccb252a6d0d4367a9318b5c2879c7cb3b208d65f505bad8b8196ae1c9b0

    SHA512

    6d59633535278ba4eb348a617d347ba3700c0bae34671872447481e58b9ab6829976eeb2701693d7d6a3b5d7ca91bab34bffcbaa16a11c3bacecbffa2de90efa

  • memory/2372-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB