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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 02:04

General

  • Target

    5a58751cba015e98e899c398e9f6d8d5430eb2f3834e893d41417d60abeb3646N.exe

  • Size

    1.9MB

  • MD5

    81d0918a2296405ef0713a2b30a01040

  • SHA1

    6a260313494f36654e4588a8940fa1f114795d74

  • SHA256

    5a58751cba015e98e899c398e9f6d8d5430eb2f3834e893d41417d60abeb3646

  • SHA512

    ab802cc094af1c429bcefb04e2aaee187b8b1e1233c22fc1b3aba469f37606d73707ede9dec1af3c47f032da26337644757c982ae721d52d4867da554d8691ad

  • SSDEEP

    49152:4LIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1Zl:0IUXQgBiI6i2KFU0yBfM7a9QDosGeo4w

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
  • UPX packed file 20 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 35 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a58751cba015e98e899c398e9f6d8d5430eb2f3834e893d41417d60abeb3646N.exe
    "C:\Users\Admin\AppData\Local\Temp\5a58751cba015e98e899c398e9f6d8d5430eb2f3834e893d41417d60abeb3646N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Users\Admin\AppData\Local\Temp\hgpor.exe
      "C:\Users\Admin\AppData\Local\Temp\hgpor.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2556
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DnlkX.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "csrs" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:5092
    • C:\Users\Admin\AppData\Roaming\csrs.exe
      "C:\Users\Admin\AppData\Roaming\csrs.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3324
      • C:\Users\Admin\AppData\Roaming\csrs.exe
        C:\Users\Admin\AppData\Roaming\csrs.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3116
        • 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:3876
          • 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:4316
        • 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\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3136
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2384
        • 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:4268
          • 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:4332
        • 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\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:860
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:5036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    130B

    MD5

    34a635bb69f9dc2d8e8ceba2f6b25308

    SHA1

    66bbd6b4eb975af0a799c6be7aaed6917f5df10c

    SHA256

    eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

    SHA512

    ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

  • C:\Users\Admin\AppData\Local\Temp\hgpor.exe

    Filesize

    12KB

    MD5

    466773bfcbd01059584cdae36e3c281c

    SHA1

    81e68615ef27cf363d6fe96582433c8a7ce8043b

    SHA256

    21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

    SHA512

    1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

  • C:\Users\Admin\AppData\Roaming\csrs.txt

    Filesize

    1.9MB

    MD5

    b1b8f45410f74a68cd37f787e0f16a0b

    SHA1

    72b104c12fb546ad9d96edeb6800ca2ede1886fa

    SHA256

    f10b631db9ee6ce208f3fb1edb837f2d5867d4a04de02ca466c642590befb62c

    SHA512

    e0d76e58e10bd0b390dbd407c08fea4cff3f405d7307704ea3316bc24ed850a7c6514cd8c25bcce371182801c4be8a96b03d13fc64b6496a6da260a7589780fd

  • memory/2556-52-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2556-10-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/3116-64-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-71-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-43-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-45-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-40-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-78-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-53-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-57-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-59-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-62-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-76-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-67-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3116-69-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3324-46-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB

  • memory/4600-0-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB

  • memory/4600-38-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB