Analysis

  • max time kernel
    148s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-02-2025 13:52

General

  • Target

    2766e65bd149a68ec2a3f392eb55b713619b6374c81b5d03b0c074c3a33b9496.exe

  • Size

    5.4MB

  • MD5

    d2c01e16280221c756abe1fb041af7e5

  • SHA1

    f3031ba121acd543997c564d6ea05effe2187200

  • SHA256

    2766e65bd149a68ec2a3f392eb55b713619b6374c81b5d03b0c074c3a33b9496

  • SHA512

    becad27fbc0f957806509dcf5936c2f6b80df006e7a1ee3589b8472aa7abb5a4ec1ae8f4bb762bbb6c839448c3c478d1f96709d3f6ff62c339766c8a31ddf9ec

  • SSDEEP

    98304:Zs2we8ErfdMgg3X3sQzClYCg4p4eGOCYciJhHPXWmYRfs9DqgrFX6:mErfOh3s4h4p4uxPPXWmYREJrc

Malware Config

Extracted

Family

cryptbot

C2

http://home.elvnuuu11pn.top/ulvJaKQlXazlgWxqjbuu04

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 1 IoCs
  • Embeds OpenSSL 1 IoCs

    Embeds OpenSSL, may be used to circumvent TLS interception.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2766e65bd149a68ec2a3f392eb55b713619b6374c81b5d03b0c074c3a33b9496.exe
    "C:\Users\Admin\AppData\Local\Temp\2766e65bd149a68ec2a3f392eb55b713619b6374c81b5d03b0c074c3a33b9496.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:792
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"
      2⤵
      • Enumerates VirtualBox registry keys
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:8120
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {5A4D3163-5F3F-4264-83F3-877DE57AA0F2} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:S4U:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:7952
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc 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
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:7984
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3490115A-8B74-4B02-A1A7-195E606087D6} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Users\Admin\AppData\Roaming\PermissionSet\Method.exe
      C:\Users\Admin\AppData\Roaming\PermissionSet\Method.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
        3⤵
          PID:3012
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
          3⤵
            PID:1792
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
            3⤵
              PID:2004
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
              3⤵
                PID:2508
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                3⤵
                  PID:8180
                • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                  3⤵
                    PID:2296
                  • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                    3⤵
                      PID:2224
                    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                      3⤵
                        PID:2716
                      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                        3⤵
                          PID:1004
                        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
                          3⤵
                            PID:628

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe

                        Filesize

                        626KB

                        MD5

                        abab3febb6ef9c10eb9ecdbebbbc128c

                        SHA1

                        cda81cd8994098f779de7e1510049daf667fb844

                        SHA256

                        7614eb6c0d335ac226aec01e855d50c683d9b18529dfc066e51b3163c5f54f3d

                        SHA512

                        855993982c0660f85ac53defd959f56d912897b5f67afb673dfbf4c1b984abf81ba198ed22553c2aa94f239bcd40e45f7400a7c8c87e79f316f7496cd231db9c

                      • \Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe

                        Filesize

                        8.9MB

                        MD5

                        85ab275356bceff2054ea13155c72784

                        SHA1

                        993f669feda60c8dcddb7465cf0a7e650c3d9a4d

                        SHA256

                        940dfe413bd0cd025bf1780d7980385e5eb69391b909c60bfd7f3dda2d563256

                        SHA512

                        a288df1b95c179c6ae6b0611e1f934354a23a254fb3b374260e594bb02fd29501b34d53f48d94097dc3e110d5882abb833cc9aea7d69e4ebecb4d9fcda6546db

                      • memory/792-43-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-14-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

                        Filesize

                        4KB

                      • memory/792-17-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/792-33-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-81-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-79-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-77-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-75-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-73-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-71-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-67-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-65-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-63-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-61-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-59-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-57-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-15-0x0000000000F20000-0x0000000000FC2000-memory.dmp

                        Filesize

                        648KB

                      • memory/792-53-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-51-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-49-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-47-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-45-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-37-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-16-0x0000000002480000-0x0000000002578000-memory.dmp

                        Filesize

                        992KB

                      • memory/792-55-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-35-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-31-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-29-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-27-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-25-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-23-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-21-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-69-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-19-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-41-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-18-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-2623-0x0000000000ED0000-0x0000000000F1C000-memory.dmp

                        Filesize

                        304KB

                      • memory/792-2622-0x00000000026B0000-0x0000000002706000-memory.dmp

                        Filesize

                        344KB

                      • memory/792-2624-0x0000000002710000-0x0000000002764000-memory.dmp

                        Filesize

                        336KB

                      • memory/792-2629-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

                        Filesize

                        4KB

                      • memory/792-39-0x0000000002480000-0x0000000002573000-memory.dmp

                        Filesize

                        972KB

                      • memory/792-2631-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/792-2635-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/2604-2655-0x0000000000810000-0x00000000008B2000-memory.dmp

                        Filesize

                        648KB

                      • memory/7984-2632-0x0000000000AB0000-0x0000000000AB8000-memory.dmp

                        Filesize

                        32KB

                      • memory/7984-2630-0x000000001A300000-0x000000001A5E2000-memory.dmp

                        Filesize

                        2.9MB