Analysis

  • max time kernel
    167s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:49

General

  • Target

    0c958e5390139be50c4f3c6e0c21707674e7919ceaa3711a6943777e5a7819c0.exe

  • Size

    200KB

  • MD5

    ab37f7e79c1d476ab7fcd7fb3ad9fcbc

  • SHA1

    9207f2fe978c6a8846b9378fc510b131f6ce3c30

  • SHA256

    0c958e5390139be50c4f3c6e0c21707674e7919ceaa3711a6943777e5a7819c0

  • SHA512

    9dd50820fe78655d74a91cc2ed723f9372628ff7436d9bdec02cee087e6c45b8ee9ed661926974c7000f7ffdda8e4f8553dbc240907f8e42079ec77bd3fc6bed

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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\0c958e5390139be50c4f3c6e0c21707674e7919ceaa3711a6943777e5a7819c0.exe
    "C:\Users\Admin\AppData\Local\Temp\0c958e5390139be50c4f3c6e0c21707674e7919ceaa3711a6943777e5a7819c0.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2572
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c958e5390139be50c4f3c6e0c21707674e7919ceaa3711a6943777e5a7819c0.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2028
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1424
  • 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:3980
  • 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:1480

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    d95b71f580e5531ad1c282e673c715af

    SHA1

    f33229f2fdd3680f8c313d5ebd7406be67141d48

    SHA256

    263a851f991e4b88a7d2aa2214f816412920586f451115c6da26cf88be618907

    SHA512

    f5f7c6bf3eee34f07bfd2a2d9fafd3a65cdd6a556d416e74745d69dd15cdb284fe65697f6dd38217b9f29481cd1805bc20d2fb1c8b070ce7d56d30e0203e56f2

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

    MD5

    d95b71f580e5531ad1c282e673c715af

    SHA1

    f33229f2fdd3680f8c313d5ebd7406be67141d48

    SHA256

    263a851f991e4b88a7d2aa2214f816412920586f451115c6da26cf88be618907

    SHA512

    f5f7c6bf3eee34f07bfd2a2d9fafd3a65cdd6a556d416e74745d69dd15cdb284fe65697f6dd38217b9f29481cd1805bc20d2fb1c8b070ce7d56d30e0203e56f2

  • memory/1532-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2572-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB