Analysis

  • max time kernel
    112s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 01:10

General

  • Target

    8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe

  • Size

    8.3MB

  • MD5

    2780aa0eed2951601dc61d4c38011b85

  • SHA1

    1e5b178f61f58a9e90b267d881c20031f530c001

  • SHA256

    8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b

  • SHA512

    f599fec839cb48c3c145e0ef8583949fff3b5538b8ad402bd4e06b6f851c7bb682f884757fa6dbaac3fce134c34cd86236abc76b7c657d4370cdcf4046c2f09e

  • SSDEEP

    196608:exOxtJahKu0vlXzxh+ZD2G1md3dtonTkM:7xtJtzX2ZD2GUtonv

Malware Config

Extracted

Family

vidar

Version

11.7

Botnet

8ec2721615c8de7e0afa1fdbfc111f76

C2

https://t.me/m07mbk

https://steamcommunity.com/profiles/76561199801589826

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Drops startup file 3 IoCs
  • Executes dropped EXE 11 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 17 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe
    "C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4828
    • C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe
      "C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Users\Admin\AppData\Local\Temp\BUILD.EXE
        "C:\Users\Admin\AppData\Local\Temp\BUILD.EXE"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4672
        • C:\Users\Admin\AppData\Local\Temp\BUILD.EXE
          "C:\Users\Admin\AppData\Local\Temp\BUILD.EXE"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4896
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\BUILD.EXE" & rd /s /q "C:\ProgramData\CAFIJKFHIJKK" & exit
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4052
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              6⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:1548
      • C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE
        "C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4184
        • C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE
          "C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE"
          4⤵
          • Executes dropped EXE
          PID:3708
        • C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE
          "C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1832
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C schtasks /create /tn WinApp /tr %APPDATA%\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4824
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn WinApp /tr C:\Users\Admin\AppData\Roaming\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 252
          4⤵
          • Program crash
          PID:4908
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4184 -ip 4184
    1⤵
      PID:2248
    • C:\Users\Admin\AppData\Roaming\service.exe
      C:\Users\Admin\AppData\Roaming\service.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Users\Admin\AppData\Roaming\service.exe
        "C:\Users\Admin\AppData\Roaming\service.exe"
        2⤵
        • Checks computer location settings
        • Drops startup file
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3696
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C schtasks /create /tn WinApp /tr %APPDATA%\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4048
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn WinApp /tr C:\Users\Admin\AppData\Roaming\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
            4⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2352
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2572 -s 236
        2⤵
        • Program crash
        PID:4700
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2572 -ip 2572
      1⤵
        PID:5012
      • C:\Users\Admin\AppData\Roaming\service.exe
        C:\Users\Admin\AppData\Roaming\service.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Users\Admin\AppData\Roaming\service.exe
          "C:\Users\Admin\AppData\Roaming\service.exe"
          2⤵
          • Executes dropped EXE
          PID:3732
        • C:\Users\Admin\AppData\Roaming\service.exe
          "C:\Users\Admin\AppData\Roaming\service.exe"
          2⤵
          • Executes dropped EXE
          PID:4516
        • C:\Users\Admin\AppData\Roaming\service.exe
          "C:\Users\Admin\AppData\Roaming\service.exe"
          2⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:3400
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C schtasks /create /tn WinApp /tr %APPDATA%\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
            3⤵
            • System Location Discovery: System Language Discovery
            PID:552
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn WinApp /tr C:\Users\Admin\AppData\Roaming\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
              4⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:3472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 224
          2⤵
          • Program crash
          PID:1512
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2748 -ip 2748
        1⤵
          PID:4888

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\BUILD.EXE

          Filesize

          4.1MB

          MD5

          117231c0ea5644ae28ec0a8963b14e41

          SHA1

          4e28424ff04d51ec065e93f85a5e9e1b4ccc992d

          SHA256

          c5f355ea361d59345a90a6f1e157d29e982830d623202af7ecff5288d6f75c32

          SHA512

          5488f16020f1b14241e43c30640641fd0cead88a4f607e405b8ad42f31f161c4c38b58189111491c9901ac65a1cd2f7d43b43b9b75ce76eae4c35d48835dc988

        • C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE

          Filesize

          353KB

          MD5

          a6c522213b6d328513ac0770555035f4

          SHA1

          e3376ed412a343b6c787c7b5cf62ec63d47aa00c

          SHA256

          0a14b17aa3dfadac32fb1b5fffbe2f68f694f5a5b3adc3b9363458f329952238

          SHA512

          93723e343751815b406f0b7dbfd2fa9dda558e577a2e5852eb42d92c44685b643463faf691213025a1f19d1a2b5266245ffac5bd6e7f5a463f3ec000d0ae7dea

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\service.exe

          Filesize

          64KB

          MD5

          c60cf18bec1acbd0ec5efc4c5b6ab1d4

          SHA1

          497535117578ae14be15c8aa0e7f6f00f55daddc

          SHA256

          0f838464021eaf1c84730e474db56f319d6355f71b1111995266f347a33b2d90

          SHA512

          fa7cb9641f81f553320af682940a707169aa4c9191193d34be16836363aaeaeffa67aed8ae8eeab734b807386044dfd3b062d81f30f6ac37645b98ce7814b571

        • memory/1832-44-0x0000000000030000-0x0000000000090000-memory.dmp

          Filesize

          384KB

        • memory/1832-40-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/1832-43-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2880-11-0x0000000000C70000-0x00000000010FA000-memory.dmp

          Filesize

          4.5MB

        • memory/2880-7-0x0000000000C70000-0x00000000010FA000-memory.dmp

          Filesize

          4.5MB

        • memory/2880-22-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/2880-35-0x0000000000C70000-0x00000000010FA000-memory.dmp

          Filesize

          4.5MB

        • memory/2880-12-0x0000000000C70000-0x00000000010FA000-memory.dmp

          Filesize

          4.5MB

        • memory/4184-38-0x0000000000072000-0x0000000000073000-memory.dmp

          Filesize

          4KB

        • memory/4672-54-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4672-55-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4672-51-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4672-49-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4672-50-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4672-48-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4672-47-0x0000000000400000-0x000000000082E000-memory.dmp

          Filesize

          4.2MB

        • memory/4828-0-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-17-0x0000000000C42000-0x0000000000C61000-memory.dmp

          Filesize

          124KB

        • memory/4828-3-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-4-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-15-0x0000000000517000-0x000000000052F000-memory.dmp

          Filesize

          96KB

        • memory/4828-5-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-21-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-10-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-2-0x0000000000517000-0x000000000052F000-memory.dmp

          Filesize

          96KB

        • memory/4828-19-0x0000000000C0E000-0x0000000000C43000-memory.dmp

          Filesize

          212KB

        • memory/4828-20-0x0000000000C16000-0x0000000000C43000-memory.dmp

          Filesize

          180KB

        • memory/4828-16-0x0000000000BFA000-0x0000000000C05000-memory.dmp

          Filesize

          44KB

        • memory/4828-18-0x0000000000C0A000-0x0000000000C0F000-memory.dmp

          Filesize

          20KB

        • memory/4828-6-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4828-1-0x0000000000400000-0x0000000000C61000-memory.dmp

          Filesize

          8.4MB

        • memory/4896-59-0x0000000000830000-0x0000000000A89000-memory.dmp

          Filesize

          2.3MB

        • memory/4896-83-0x0000000000830000-0x0000000000A89000-memory.dmp

          Filesize

          2.3MB

        • memory/4896-53-0x0000000000830000-0x0000000000A89000-memory.dmp

          Filesize

          2.3MB

        • memory/4896-85-0x0000000000830000-0x0000000000A89000-memory.dmp

          Filesize

          2.3MB

        • memory/4896-84-0x0000000000830000-0x0000000000A89000-memory.dmp

          Filesize

          2.3MB