Analysis

  • max time kernel
    147s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-02-2025 11:47

General

  • Target

    a8750b5975e3f52c9285f811e9fe22cf19cc9b097fd96ee945623965c613a385.exe

  • Size

    5.4MB

  • MD5

    7bee3a8f387bbbc84ab90a8a92be6dc6

  • SHA1

    d93b5a47af4094bb8d900a8a6feb89bcbf38c118

  • SHA256

    a8750b5975e3f52c9285f811e9fe22cf19cc9b097fd96ee945623965c613a385

  • SHA512

    95cbe2ed9005342fa1caf3a192f636fd9c8ef64df8f7baaeb09a701c209ef139da90e61a1fd24efef0c4d078706a8acdc082ac7b3f5c138ca5341d6b829846af

  • SSDEEP

    98304:ZsskiQvHYE7PyrHXIJ1zqRfm0zWPReVl23hIJyNm4/acqTsg:wiyYaH1q9z6eVlPJygsg

Malware Config

Extracted

Family

cryptbot

C2

http://home.elvnpp11sb.top/PbeokZpPUOamImAhVrmG11

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\a8750b5975e3f52c9285f811e9fe22cf19cc9b097fd96ee945623965c613a385.exe
    "C:\Users\Admin\AppData\Local\Temp\a8750b5975e3f52c9285f811e9fe22cf19cc9b097fd96ee945623965c613a385.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2072
    • 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:2176
    • 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:7748
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4EC10FB7-55DE-417F-803D-3A4C00496AC2} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:S4U:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:7580
    • 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:7612
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {DBAE535A-196D-4FC2-87A1-6184DBDD1A3A} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:7892
    • 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:7924
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
        3⤵
          PID:4932
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
          3⤵
            PID:4964
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
            3⤵
              PID:4996
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
              3⤵
                PID:5020
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                3⤵
                  PID:5044
                • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                  3⤵
                    PID:5076
                  • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                    3⤵
                      PID:5104
                    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                      3⤵
                        PID:5128
                      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                        3⤵
                          PID:5152
                        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
                          3⤵
                            PID:5184

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

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

                        Filesize

                        8.5MB

                        MD5

                        f1d1d8dc0494c69f77e03f6b5366a2a4

                        SHA1

                        2f20af746b4e69db58c3c0383365ba9da7c6bf26

                        SHA256

                        11c9dd0e206ed62d39c85600cda77706e91691b3b6557746a916c0bbe5a60721

                        SHA512

                        df0c70cb54faef30891da8fb7c8e9e877adbe004ee2348d780131586113d50e3d8ed2966538a69dcdeb5f14f689fb53f913a0747062241813d3b0ad1a064da04

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

                        Filesize

                        626KB

                        MD5

                        abab3febb6ef9c10eb9ecdbebbbc128c

                        SHA1

                        cda81cd8994098f779de7e1510049daf667fb844

                        SHA256

                        7614eb6c0d335ac226aec01e855d50c683d9b18529dfc066e51b3163c5f54f3d

                        SHA512

                        855993982c0660f85ac53defd959f56d912897b5f67afb673dfbf4c1b984abf81ba198ed22553c2aa94f239bcd40e45f7400a7c8c87e79f316f7496cd231db9c

                      • memory/2176-2622-0x0000000000F10000-0x0000000000F66000-memory.dmp

                        Filesize

                        344KB

                      • memory/2176-14-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

                        Filesize

                        4KB

                      • memory/2176-17-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/2176-77-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-81-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-79-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-73-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-71-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-69-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-67-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-65-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-61-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-59-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-57-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-55-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-53-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-15-0x00000000012C0000-0x0000000001362000-memory.dmp

                        Filesize

                        648KB

                      • memory/2176-47-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-45-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-43-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-41-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-2623-0x0000000000160000-0x00000000001AC000-memory.dmp

                        Filesize

                        304KB

                      • memory/2176-37-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-16-0x0000000001160000-0x0000000001258000-memory.dmp

                        Filesize

                        992KB

                      • memory/2176-49-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-75-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-63-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-51-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-35-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-33-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-31-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-29-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-27-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-25-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-23-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-21-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-19-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-18-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-2624-0x0000000000F70000-0x0000000000FC4000-memory.dmp

                        Filesize

                        336KB

                      • memory/2176-2629-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

                        Filesize

                        4KB

                      • memory/2176-39-0x0000000001160000-0x0000000001253000-memory.dmp

                        Filesize

                        972KB

                      • memory/2176-2635-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/2176-2632-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/7612-2631-0x0000000000A40000-0x0000000000A48000-memory.dmp

                        Filesize

                        32KB

                      • memory/7612-2630-0x000000001A380000-0x000000001A662000-memory.dmp

                        Filesize

                        2.9MB

                      • memory/7924-2655-0x0000000000FF0000-0x0000000001092000-memory.dmp

                        Filesize

                        648KB