Analysis

  • max time kernel
    152s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2022, 13:12

General

  • Target

    4e7c8caeb5fcf866d30e596e2ce6535a50e64f1fcf36bc1fe11ad006ec1b92c3.exe

  • Size

    270KB

  • MD5

    90d1650e8a355e7e0b2b9717a3e0f473

  • SHA1

    6adbe498c033f613899c00341676664341aa5a00

  • SHA256

    4e7c8caeb5fcf866d30e596e2ce6535a50e64f1fcf36bc1fe11ad006ec1b92c3

  • SHA512

    306984641413562ed0e936dd67b1d5fe945599444e9090bf9b00e615be101678330a0a83903322ff5373d078913972dabcbcf18caf4f73850378a28c55c810ed

  • SSDEEP

    6144:kWfCbohHv6mC21AAf3os6SC+vyJ65FrD1yyIchVjz5GEKQVfjixoS/:tfuopvBCSfYdN6yE55D1yyIcVPqQVfjq

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 24 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 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 36 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e7c8caeb5fcf866d30e596e2ce6535a50e64f1fcf36bc1fe11ad006ec1b92c3.exe
    "C:\Users\Admin\AppData\Local\Temp\4e7c8caeb5fcf866d30e596e2ce6535a50e64f1fcf36bc1fe11ad006ec1b92c3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\qaJPZ.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1532
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Winlogon" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe" /f
        3⤵
        • Adds Run key to start application
        PID:1648
    • C:\Users\Admin\AppData\Roaming\winlogon.exe
      "C:\Users\Admin\AppData\Roaming\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:624
      • C:\Users\Admin\AppData\Roaming\winlogon.exe
        C:\Users\Admin\AppData\Roaming\winlogon.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:944
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:1924
          • 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
            • Modifies registry key
            PID:1388
        • 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\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • 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:\Users\Admin\AppData\Roaming\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1260
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:772
          • 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
            • Modifies registry key
            PID:1172
        • 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\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1920
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1220
      • C:\Users\Admin\AppData\Roaming\winlogon.exe
        C:\Users\Admin\AppData\Roaming\winlogon.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    138B

    MD5

    4da6717f2c70f4bd32ad33a227a2ff47

    SHA1

    3d7f7159e1f695bd469287d1ad4ffa0841b407a8

    SHA256

    a12bb2e5d2fb0b3c400ce311fae72995a00b57a97d23e4b9effec47cff189d07

    SHA512

    6765314054ad9bf2164058248f3d3a17775176925abbe4376aec030dca3a5e59be8b9e96139941fec2b2e1a9bff38f87abdb29ea09a299d8ab7e23ecec4083df

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

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

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

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

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

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

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

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    270KB

    MD5

    d1682ad218757c82461fbdc6d7dbeaef

    SHA1

    0535f5addb7fbdd2f8f97c55f4f26e8364a9a971

    SHA256

    4369597ffab4cf70c07f1cd6d9a04d1d9076e06d50cfe80567610f603a2abcf1

    SHA512

    b81a3a6a814331a5fc89546d0f277dc9eff99ea5313a687e04e32c61121c34ec660eb9c55aa9c402b5378daad1185ac57e9a134191898ddee4172e2eff16991b

  • memory/624-86-0x0000000000400000-0x000000000058E000-memory.dmp

    Filesize

    1.6MB

  • memory/624-72-0x0000000000400000-0x000000000058E000-memory.dmp

    Filesize

    1.6MB

  • memory/944-77-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/944-91-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/944-104-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/944-79-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/944-73-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1700-87-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1700-90-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1700-85-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1700-78-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1700-103-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2032-57-0x0000000075201000-0x0000000075203000-memory.dmp

    Filesize

    8KB

  • memory/2032-56-0x0000000000400000-0x000000000058E000-memory.dmp

    Filesize

    1.6MB

  • memory/2032-68-0x0000000000400000-0x000000000058E000-memory.dmp

    Filesize

    1.6MB