Analysis

  • max time kernel
    158s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:48

General

  • Target

    0610398fed04a39d7635832ce60b4c3d2f9b467b0a20b07393e52ff1adb3cedf.exe

  • Size

    92KB

  • MD5

    733cac2ce9d760a66bfdff24ee6ae7ba

  • SHA1

    85414922f21253823d1192497caf3e171780c8aa

  • SHA256

    0610398fed04a39d7635832ce60b4c3d2f9b467b0a20b07393e52ff1adb3cedf

  • SHA512

    137863b41de45b9d60f0b4d80d669cafbea982d1d66ba475b373c38ba933669129213fe91a06ac388fecda31e72e5ccc67701cd63f7d23d9388cd7a7020b6b3f

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 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 55 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\0610398fed04a39d7635832ce60b4c3d2f9b467b0a20b07393e52ff1adb3cedf.exe
    "C:\Users\Admin\AppData\Local\Temp\0610398fed04a39d7635832ce60b4c3d2f9b467b0a20b07393e52ff1adb3cedf.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3652
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0610398fed04a39d7635832ce60b4c3d2f9b467b0a20b07393e52ff1adb3cedf.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3220
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:320
  • 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:3960
  • 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:3680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    e7b982555d6f598c88d406d43a28cf02

    SHA1

    13dde706ab55bdfa775b3707943d3d62c4e90e2b

    SHA256

    be3bce694e3edbb44358288ddbaa98bf9f2806e60183ef4df7b9979650546cd7

    SHA512

    4dcb86241b078ff3a67675a3e49ce9fc94bcf5bf0cec574e610f90f8a0b2521322a67c1cd768b175a5b383cc4e47e1c0a59abad37693257cdee343d79141ea19

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

    e7b982555d6f598c88d406d43a28cf02

    SHA1

    13dde706ab55bdfa775b3707943d3d62c4e90e2b

    SHA256

    be3bce694e3edbb44358288ddbaa98bf9f2806e60183ef4df7b9979650546cd7

    SHA512

    4dcb86241b078ff3a67675a3e49ce9fc94bcf5bf0cec574e610f90f8a0b2521322a67c1cd768b175a5b383cc4e47e1c0a59abad37693257cdee343d79141ea19