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Analysis

  • max time kernel
    149s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • UPX packed file 22 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 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a58751cba015e98e899c398e9f6d8d5430eb2f3834e893d41417d60abeb3646N.exe
    "C:\Users\Admin\AppData\Local\Temp\5a58751cba015e98e899c398e9f6d8d5430eb2f3834e893d41417d60abeb3646N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\FaETp.exe
      "C:\Users\Admin\AppData\Local\Temp\FaETp.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2800
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\WdBRi.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2720
      • 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:2552
    • C:\Users\Admin\AppData\Roaming\csrs.exe
      "C:\Users\Admin\AppData\Roaming\csrs.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2840
      • 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:1948
        • 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:2520
          • 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:2856
        • 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:2996
          • 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:2872
        • 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:3000
          • 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:2940
        • 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:2792
          • 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:1436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\WdBRi.bat

    Filesize

    130B

    MD5

    34a635bb69f9dc2d8e8ceba2f6b25308

    SHA1

    66bbd6b4eb975af0a799c6be7aaed6917f5df10c

    SHA256

    eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

    SHA512

    ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

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

    Filesize

    1.9MB

    MD5

    ee5cf0a98f2187df5fd9c7e5be9e216f

    SHA1

    864ee91009b19a1025fefd86e96c9fd03c2e5b04

    SHA256

    78d7ed396aaa61e353c9f4f4b1e347bf0eb48e505432efdbded9a53909e6e3ad

    SHA512

    1cb5cf980a441382b737c5ba8651883b503d306ee02fc8018a8b7e4c6180897da61d8cd0484285981d6bd043fab81c1b6e8bf88534d553f31fccb42dacd71bff

  • \Users\Admin\AppData\Local\Temp\FaETp.exe

    Filesize

    12KB

    MD5

    466773bfcbd01059584cdae36e3c281c

    SHA1

    81e68615ef27cf363d6fe96582433c8a7ce8043b

    SHA256

    21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

    SHA512

    1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

  • memory/1948-74-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-70-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-111-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-106-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-101-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-97-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-94-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-92-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-90-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-87-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-78-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-84-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1948-73-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2180-65-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB

  • memory/2180-0-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB

  • memory/2180-63-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB

  • memory/2180-19-0x0000000001F50000-0x0000000001F67000-memory.dmp

    Filesize

    92KB

  • memory/2180-61-0x0000000003410000-0x00000000035EE000-memory.dmp

    Filesize

    1.9MB

  • memory/2180-12-0x0000000001F50000-0x0000000001F67000-memory.dmp

    Filesize

    92KB

  • memory/2180-11-0x0000000001F50000-0x0000000001F67000-memory.dmp

    Filesize

    92KB

  • memory/2800-82-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2800-21-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2840-75-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB

  • memory/2840-64-0x0000000000400000-0x00000000005DE000-memory.dmp

    Filesize

    1.9MB