Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2024 21:05

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#.

  • Milleniumrat family
  • 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 processes with tasklist 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 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:1744
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp955A.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp955A.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 1744"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:3648
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:4048
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:540
        • 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:3144
          • 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:2292
            • 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:4584

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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\tmp955A.tmp.bat

      Filesize

      256B

      MD5

      b36d0218cd6b983b998b222cad1f037d

      SHA1

      160bba564ae8c32ea31703d3e7e08233c493a9c2

      SHA256

      f4be5391e36eb5724bdd187c6cca4386aa2e6bc88251dbe9349c206a48a8103d

      SHA512

      211706abd26108c31b30dd1c6a8661227d2edea4e84450b8956a8b303f671b4c6c1e1de3b54adfac7700d7326901f9f7b39ba45ab749d98c4e52ab14240b3615

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

      Filesize

      5.6MB

      MD5

      731812403191b60503e017d88e23b1a3

      SHA1

      67e1c24ded75620181916dea9654eeddf4049525

      SHA256

      db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2

      SHA512

      1ae78e7d5e134d56ebbe9ec3e71bd7529aedbe5670a93b7728eca0aa482ac6688187884c5a61c2c8ef308acda555152d4d5cd2938d1cfa57303a8649803f01d5

    • memory/1744-0-0x00007FF9CF883000-0x00007FF9CF885000-memory.dmp

      Filesize

      8KB

    • memory/1744-1-0x000001F1635B0000-0x000001F163B50000-memory.dmp

      Filesize

      5.6MB

    • memory/1744-6-0x000001F17DFE0000-0x000001F17E056000-memory.dmp

      Filesize

      472KB

    • memory/1744-7-0x00007FF9CF880000-0x00007FF9D0341000-memory.dmp

      Filesize

      10.8MB

    • memory/1744-8-0x000001F165740000-0x000001F16575E000-memory.dmp

      Filesize

      120KB

    • memory/1744-12-0x00007FF9CF880000-0x00007FF9D0341000-memory.dmp

      Filesize

      10.8MB