Analysis

  • max time kernel
    150s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2022 10:10

General

  • Target

    ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe

  • Size

    226KB

  • MD5

    e1a68fd193ea6f726077f859cf44cfa9

  • SHA1

    70cfa4d3cfd10afcf0aab0b95aef12e0ca021271

  • SHA256

    ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab

  • SHA512

    3bd74f85b94982b93e339b14ac7a1acb2ad95fb878ebe9b1a43736043e73e6b7082cf541e228519a09c989fe127ceab1bb558125fc351faecda27e6265e79023

  • SSDEEP

    3072:9p1I47QE7GxrKLgp0kEEtPMIXHM+gRCM1m5bcT8ULR4g:bO4rgmzmxg9obg1O

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 5 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe
    "C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe
      C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe
      2⤵
      • Adds policy Run key to start application
      • Modifies Installed Components in the registry
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Users\Admin\AppData\Local\Temp\Y2TZ9BXMTH41.exe
        C:\Users\Admin\AppData\Local\Temp\Y2TZ9BXMTH41.exe
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        PID:2028
      • 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
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1376
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:544
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\ef51c68ec438cf1245fbbac8af8a2f38bcbe3cb2f9e105e46224fcaa8d52f9ab.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:836
      • 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
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1080
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:392
      • 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\333.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\333.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1412
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\333.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\333.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:1404

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Y2TZ9BXMTH41.exe

    Filesize

    84KB

    MD5

    41df87cc97cd4727e5fe266c6c06e10d

    SHA1

    0bbfe2506656fe8ebd432c3721758207f36fa0fd

    SHA256

    19f8797dc1c69909d8d0fb563d13e955dc98a1d22fdf8b2c551731323d672505

    SHA512

    7d67b3c11317386971463919e6f8ab479c6b62cd8017a13bbe65acaf8d8fc09ee186d6cde9d3af58e25b4d22f3f94b25f5bca230062bed67d13b8b21d648d191

  • \Users\Admin\AppData\Local\Temp\Y2TZ9BXMTH41.exe

    Filesize

    84KB

    MD5

    41df87cc97cd4727e5fe266c6c06e10d

    SHA1

    0bbfe2506656fe8ebd432c3721758207f36fa0fd

    SHA256

    19f8797dc1c69909d8d0fb563d13e955dc98a1d22fdf8b2c551731323d672505

    SHA512

    7d67b3c11317386971463919e6f8ab479c6b62cd8017a13bbe65acaf8d8fc09ee186d6cde9d3af58e25b4d22f3f94b25f5bca230062bed67d13b8b21d648d191

  • memory/392-79-0x0000000000000000-mapping.dmp

  • memory/544-76-0x0000000000000000-mapping.dmp

  • memory/836-78-0x0000000000000000-mapping.dmp

  • memory/1000-71-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1000-67-0x0000000076871000-0x0000000076873000-memory.dmp

    Filesize

    8KB

  • memory/1000-63-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1000-81-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1000-62-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1000-58-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1000-59-0x000000000045BCD0-mapping.dmp

  • memory/1080-75-0x0000000000000000-mapping.dmp

  • memory/1376-73-0x0000000000000000-mapping.dmp

  • memory/1404-80-0x0000000000000000-mapping.dmp

  • memory/1412-77-0x0000000000000000-mapping.dmp

  • memory/1700-74-0x0000000000000000-mapping.dmp

  • memory/1948-61-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1948-56-0x0000000002D90000-0x0000000002EE3000-memory.dmp

    Filesize

    1.3MB

  • memory/2028-69-0x0000000000000000-mapping.dmp