Analysis

  • max time kernel
    169s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:58

General

  • Target

    13ec0d650792afd673ca20d89ef072456033b4dbd4b07e422017b9bbdaa6d80a.exe

  • Size

    92KB

  • MD5

    53ee115d935f47012654d3a4a99d724a

  • SHA1

    7ab3731d2319854842d52ceb519ca03e244398a9

  • SHA256

    13ec0d650792afd673ca20d89ef072456033b4dbd4b07e422017b9bbdaa6d80a

  • SHA512

    73c4e95a0b29f5c580ee76141e41acb97b8a5ba92f06b89cae3f1ecd069a1a03f07402aa9a08a5568cf3a8ce91cb742d4e25ac30f309a52add7f2a62d34542eb

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.

  • 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\13ec0d650792afd673ca20d89ef072456033b4dbd4b07e422017b9bbdaa6d80a.exe
    "C:\Users\Admin\AppData\Local\Temp\13ec0d650792afd673ca20d89ef072456033b4dbd4b07e422017b9bbdaa6d80a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2276
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\13ec0d650792afd673ca20d89ef072456033b4dbd4b07e422017b9bbdaa6d80a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3596
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3036
  • 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:3560
  • 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:3744

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    6f1a07ca89e6728f14276151517312e8

    SHA1

    05953d520d908d0642f96af6055fd055fcf3147e

    SHA256

    3f5ee97451f7fcef3989bc94f329ad1e3b18b29380ba4d37bc4c7ca3595fb14d

    SHA512

    9dfa943c693ce92db83d12e82484862d4a7554249a86b0c1e9f463ebfed7b31be6605178e13bacc3d4e42b0e8e00d9886633ec363e499139aca734d373767206

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

    MD5

    6f1a07ca89e6728f14276151517312e8

    SHA1

    05953d520d908d0642f96af6055fd055fcf3147e

    SHA256

    3f5ee97451f7fcef3989bc94f329ad1e3b18b29380ba4d37bc4c7ca3595fb14d

    SHA512

    9dfa943c693ce92db83d12e82484862d4a7554249a86b0c1e9f463ebfed7b31be6605178e13bacc3d4e42b0e8e00d9886633ec363e499139aca734d373767206