Resubmissions

01/03/2024, 15:41

240301-s46jpahe82 10

20/02/2024, 02:32

240220-c1ct7sab38 10

Analysis

  • max time kernel
    42s
  • max time network
    36s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/03/2024, 15:41

General

  • Target

    db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe

  • Size

    5.6MB

  • MD5

    731812403191b60503e017d88e23b1a3

  • SHA1

    67e1c24ded75620181916dea9654eeddf4049525

  • SHA256

    db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2

  • SHA512

    1ae78e7d5e134d56ebbe9ec3e71bd7529aedbe5670a93b7728eca0aa482ac6688187884c5a61c2c8ef308acda555152d4d5cd2938d1cfa57303a8649803f01d5

  • SSDEEP

    98304:nsl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6UcR6m:nPOuK6mn9NzgMoYkSIvUcwti7TQlvciK

Malware Config

Signatures

  • MilleniumRat

    MilleniumRat is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
    "C:\Users\Admin\AppData\Local\Temp\db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3492
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp5757.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp5757.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 3492"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:3648
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:4628
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:1100
        • C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
          "C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1056
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2024
            • C:\Windows\system32\reg.exe
              reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdate /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe /f
              5⤵
              • Adds Run key to start application
              • Modifies registry key
              PID:1636

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

      Filesize

      1.7MB

      MD5

      65ccd6ecb99899083d43f7c24eb8f869

      SHA1

      27037a9470cc5ed177c0b6688495f3a51996a023

      SHA256

      aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

      SHA512

      533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

    • C:\Users\Admin\AppData\Local\Temp\tmp5757.tmp.bat

      Filesize

      256B

      MD5

      841d3c6730065dccef5c56e09419781f

      SHA1

      ed4170eed37c8f70e38877ad440887d83f0d3168

      SHA256

      ab431c14fc1d077217a8795a80ea9c3f21aaf3ed0e53aaad37b3910443b00cd8

      SHA512

      14684650c57bc2cb2765844a1f22beaa2ad0843afc790e17932a26692b0710d1833cadb0f26934b64d4aceeb87bcd89727becc59c4c44e9f97db2fd2e19983fa

    • C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe

      Filesize

      5.6MB

      MD5

      731812403191b60503e017d88e23b1a3

      SHA1

      67e1c24ded75620181916dea9654eeddf4049525

      SHA256

      db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2

      SHA512

      1ae78e7d5e134d56ebbe9ec3e71bd7529aedbe5670a93b7728eca0aa482ac6688187884c5a61c2c8ef308acda555152d4d5cd2938d1cfa57303a8649803f01d5

    • memory/1056-17-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

      Filesize

      10.8MB

    • memory/1056-20-0x000001FD48550000-0x000001FD48560000-memory.dmp

      Filesize

      64KB

    • memory/1056-21-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

      Filesize

      10.8MB

    • memory/3492-0-0x00000296DE120000-0x00000296DE6C0000-memory.dmp

      Filesize

      5.6MB

    • memory/3492-1-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

      Filesize

      10.8MB

    • memory/3492-6-0x00000296F8AF0000-0x00000296F8B66000-memory.dmp

      Filesize

      472KB

    • memory/3492-7-0x00000296F8D10000-0x00000296F8D20000-memory.dmp

      Filesize

      64KB

    • memory/3492-8-0x00000296E03C0000-0x00000296E03DE000-memory.dmp

      Filesize

      120KB

    • memory/3492-12-0x00007FFBA2D40000-0x00007FFBA3801000-memory.dmp

      Filesize

      10.8MB