Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 09:54

General

  • Target

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f.exe

  • Size

    296KB

  • MD5

    3d7a5b83b6c8fdd5df34cbb0d23483de

  • SHA1

    e774dc8e30008338844f096c6ade70e2c092052d

  • SHA256

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f

  • SHA512

    804a888abd4982913cc1c1e1585040fb6be47c1ca37b5be9eb6c52d6c419c038dfaf18f670e1fa942f2f316fac49e4e613beb39a4a54d21d6df7371bb5947182

  • SSDEEP

    6144:Nnh4rMUW2f5mn4cwBPQD4od7FwDvKbrAGeGYiRqVVc67HJz:zf1o2faKbrAGeuRqVCqF

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f.exe
    "C:\Users\Admin\AppData\Local\Temp\41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe" /pq
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1764
      • C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe" /px
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:1648
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\\vbc.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:860
      • 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:660
        • 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:580
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1564
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:1204
      • 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:1712
        • 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:1508
      • 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\URFNZWN8PN.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\URFNZWN8PN.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:632
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\URFNZWN8PN.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\URFNZWN8PN.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:792

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe

    Filesize

    296KB

    MD5

    3d7a5b83b6c8fdd5df34cbb0d23483de

    SHA1

    e774dc8e30008338844f096c6ade70e2c092052d

    SHA256

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f

    SHA512

    804a888abd4982913cc1c1e1585040fb6be47c1ca37b5be9eb6c52d6c419c038dfaf18f670e1fa942f2f316fac49e4e613beb39a4a54d21d6df7371bb5947182

  • C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe

    Filesize

    296KB

    MD5

    3d7a5b83b6c8fdd5df34cbb0d23483de

    SHA1

    e774dc8e30008338844f096c6ade70e2c092052d

    SHA256

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f

    SHA512

    804a888abd4982913cc1c1e1585040fb6be47c1ca37b5be9eb6c52d6c419c038dfaf18f670e1fa942f2f316fac49e4e613beb39a4a54d21d6df7371bb5947182

  • C:\Users\Admin\AppData\Local\Temp\tmp954.tmp.exe

    Filesize

    296KB

    MD5

    3d7a5b83b6c8fdd5df34cbb0d23483de

    SHA1

    e774dc8e30008338844f096c6ade70e2c092052d

    SHA256

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f

    SHA512

    804a888abd4982913cc1c1e1585040fb6be47c1ca37b5be9eb6c52d6c419c038dfaf18f670e1fa942f2f316fac49e4e613beb39a4a54d21d6df7371bb5947182

  • \Users\Admin\AppData\Local\Temp\tmp954.tmp.exe

    Filesize

    296KB

    MD5

    3d7a5b83b6c8fdd5df34cbb0d23483de

    SHA1

    e774dc8e30008338844f096c6ade70e2c092052d

    SHA256

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f

    SHA512

    804a888abd4982913cc1c1e1585040fb6be47c1ca37b5be9eb6c52d6c419c038dfaf18f670e1fa942f2f316fac49e4e613beb39a4a54d21d6df7371bb5947182

  • \Users\Admin\AppData\Local\Temp\tmp954.tmp.exe

    Filesize

    296KB

    MD5

    3d7a5b83b6c8fdd5df34cbb0d23483de

    SHA1

    e774dc8e30008338844f096c6ade70e2c092052d

    SHA256

    41707206bb6ac790542519a9cad6a438c71e5b1e3eeef5f95f99f7cd19126d9f

    SHA512

    804a888abd4982913cc1c1e1585040fb6be47c1ca37b5be9eb6c52d6c419c038dfaf18f670e1fa942f2f316fac49e4e613beb39a4a54d21d6df7371bb5947182

  • memory/580-86-0x0000000000000000-mapping.dmp

  • memory/632-85-0x0000000000000000-mapping.dmp

  • memory/660-82-0x0000000000000000-mapping.dmp

  • memory/792-89-0x0000000000000000-mapping.dmp

  • memory/860-76-0x00000000004013D8-mapping.dmp

  • memory/860-67-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/860-68-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/860-71-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/860-74-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/1204-88-0x0000000000000000-mapping.dmp

  • memory/1508-87-0x0000000000000000-mapping.dmp

  • memory/1564-83-0x0000000000000000-mapping.dmp

  • memory/1648-69-0x0000000074700000-0x0000000074CAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1648-63-0x0000000000000000-mapping.dmp

  • memory/1652-54-0x00000000758C1000-0x00000000758C3000-memory.dmp

    Filesize

    8KB

  • memory/1652-55-0x0000000074700000-0x0000000074CAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1652-90-0x0000000074700000-0x0000000074CAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1712-84-0x0000000000000000-mapping.dmp

  • memory/1764-66-0x0000000074700000-0x0000000074CAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1764-62-0x0000000074700000-0x0000000074CAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1764-57-0x0000000000000000-mapping.dmp