Analysis

  • max time kernel
    119s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 16:43

General

  • Target

    aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe

  • Size

    1.8MB

  • MD5

    59a7581d2e7d549205390c86631c0510

  • SHA1

    7c01b0421e0b4c3e5df4950e1709d602f1caac29

  • SHA256

    aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaa

  • SHA512

    51156b9d223ec10a695731cb3d7c756a5529a4c56853a8f20d264c34ac9f9b90a2f8143ead8687c86fdf72ea251b933b316672718363e9083667a5d1b863a998

  • SSDEEP

    12288:BHTVhI8jdG+sV1p0x/k9fkQ3KypwkBPKxY9XZdFh29DNDupLdXUoWxOT8oS+:tV35QOk3KWNo34nOOTz

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 21 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe
    "C:\Users\Admin\AppData\Local\Temp\aac0a537d4aed51eeb6ac90685dd5547d1588ca4262417800681ac424745cdaaN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KJEDn.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WinUpdt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1720
    • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
      "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
        "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2540
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3740
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1664
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5104
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:3284
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2424
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:832
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3540
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2996
      • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
        "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\KJEDn.txt

    Filesize

    152B

    MD5

    49bb161b07149b1bda99901c71d98b1f

    SHA1

    e5e3b389c09d551bd8f3a4cf71ee30e566fdf6e2

    SHA256

    734c4f48449a118dbdfbbe4971ecf112b26b2b45d1889678c01dea98eb5767d8

    SHA512

    da09a2af9b7f9528916ab719ed97ee8b61179bba92016eaed64b3e7d6bf08646801aeeb0eb332bdde175eb64b48106f7cf2fe2bf01ea6128753e4ce1d48707be

  • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.txt

    Filesize

    1.8MB

    MD5

    7f6a28a5f1ddb95f9c0aa7bbf4eb62f8

    SHA1

    52a2569844e34cfe4be3342ac4989c343c5fce9a

    SHA256

    6b9828895bcb96d5b7f73fe48a55f55c09123f5fd208a2a1f789501055d005d9

    SHA512

    1d939a61abd48596b3272a0ed3a902c37c1e7765affd89f64f4f6e8c876078ee1e701a8e67d9fc97e5fd561b664a896bb0719ee278f914f8bdee579f0407f1cc

  • memory/2328-48-0x0000000000400000-0x00000000005CA000-memory.dmp

    Filesize

    1.8MB

  • memory/2540-36-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-53-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-62-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-34-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-74-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-31-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-69-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-60-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-51-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-67-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-65-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-55-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2540-58-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/3136-30-0x0000000000400000-0x00000000005CA000-memory.dmp

    Filesize

    1.8MB

  • memory/3136-0-0x0000000000400000-0x00000000005CA000-memory.dmp

    Filesize

    1.8MB

  • memory/4972-40-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4972-52-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4972-37-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4972-44-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB