Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe
    "C:\Users\Admin\AppData\Local\Temp\db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpD21E.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpD21E.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 2668"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:2884
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:2848
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:2912
        • C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe
          "C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Update.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2924
          • 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:2432
            • 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:2308
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 2924 -s 1620
            4⤵
              PID:2032

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpD21E.tmp.bat

        Filesize

        256B

        MD5

        a1de6ec4f15988e8ec69523a2fb5097a

        SHA1

        52b32deb6a375fc58b11e735a16118a1bc4504a2

        SHA256

        f7a8d1543cd24f14497260cde28cb441334d8e814d1f53c709e6b428747ffbe1

        SHA512

        a8fa3cc40af8ff674efc8b3411c626b30ede2c0beb1dddf8cdc909168cdde970d28c9b0a5ec1b3fd019ef144d3d6c7b1dcdbef1369a717f9f78371f9f2d335fe

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

        Filesize

        5.6MB

        MD5

        731812403191b60503e017d88e23b1a3

        SHA1

        67e1c24ded75620181916dea9654eeddf4049525

        SHA256

        db874ae685d2bc4235b1213ec9d43d327c8d2bd12300bb0d78c9ce0a84c828b2

        SHA512

        1ae78e7d5e134d56ebbe9ec3e71bd7529aedbe5670a93b7728eca0aa482ac6688187884c5a61c2c8ef308acda555152d4d5cd2938d1cfa57303a8649803f01d5

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

        Filesize

        1.7MB

        MD5

        65ccd6ecb99899083d43f7c24eb8f869

        SHA1

        27037a9470cc5ed177c0b6688495f3a51996a023

        SHA256

        aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

        SHA512

        533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

      • memory/2668-0-0x000007FEF6113000-0x000007FEF6114000-memory.dmp

        Filesize

        4KB

      • memory/2668-1-0x00000000009E0000-0x0000000000F80000-memory.dmp

        Filesize

        5.6MB

      • memory/2668-6-0x000007FEF6110000-0x000007FEF6AFC000-memory.dmp

        Filesize

        9.9MB

      • memory/2668-7-0x000007FEF6113000-0x000007FEF6114000-memory.dmp

        Filesize

        4KB

      • memory/2668-8-0x000007FEF6110000-0x000007FEF6AFC000-memory.dmp

        Filesize

        9.9MB

      • memory/2668-11-0x000007FEF6110000-0x000007FEF6AFC000-memory.dmp

        Filesize

        9.9MB

      • memory/2924-16-0x00000000000A0000-0x0000000000640000-memory.dmp

        Filesize

        5.6MB