Analysis

  • max time kernel
    149s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12-02-2022 03:54

General

  • Target

    1687bc0738560d9d615f5715ca377841fd87f86d6304201c66767a87670d3d95.exe

  • Size

    150KB

  • MD5

    9aa9cf034deaf46ad4714d3ddab92f9e

  • SHA1

    ed1ac2d3a7c099245c3b4756a50833bae6941e0b

  • SHA256

    1687bc0738560d9d615f5715ca377841fd87f86d6304201c66767a87670d3d95

  • SHA512

    e802caa7da6014ba7062a14504b96947a4bed82c046c222fee57931e76e74171d0edeae1a8e3efabf1b345936a4cc7371e343437ecd08a2a1009e20e662a6e85

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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\1687bc0738560d9d615f5715ca377841fd87f86d6304201c66767a87670d3d95.exe
    "C:\Users\Admin\AppData\Local\Temp\1687bc0738560d9d615f5715ca377841fd87f86d6304201c66767a87670d3d95.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1687bc0738560d9d615f5715ca377841fd87f86d6304201c66767a87670d3d95.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4336
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4328
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2800
  • 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:4128

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    0693212f93d9f95fb01fb262d67fcfa3

    SHA1

    1215d3c5e60cb52249cc6c96f13fcde5e25d15d9

    SHA256

    d6c80ad9b20361de2134c1c99323fc78afe84ca164b8b3e09414515d912f3b65

    SHA512

    df7797e3e209d64f98a6db99de7a80cb78375a695c31e972948e9362f53f93dd7a337fa3b016810988d6ae3c0a8cbba4c85202f8e905a88f04ba7b748f256fc3

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

    MD5

    0693212f93d9f95fb01fb262d67fcfa3

    SHA1

    1215d3c5e60cb52249cc6c96f13fcde5e25d15d9

    SHA256

    d6c80ad9b20361de2134c1c99323fc78afe84ca164b8b3e09414515d912f3b65

    SHA512

    df7797e3e209d64f98a6db99de7a80cb78375a695c31e972948e9362f53f93dd7a337fa3b016810988d6ae3c0a8cbba4c85202f8e905a88f04ba7b748f256fc3

  • memory/2800-132-0x000001E8113A0000-0x000001E8113B0000-memory.dmp

    Filesize

    64KB

  • memory/2800-133-0x000001E811A20000-0x000001E811A30000-memory.dmp

    Filesize

    64KB

  • memory/2800-134-0x000001E814120000-0x000001E814124000-memory.dmp

    Filesize

    16KB