Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 15:42

General

  • Target
    file.exe
  • Size 1.2MB
  • Sample240403-s5bqpsfd59
  • SHA256 907706946fe86a55bf29fefb4e5d2d0f0f490bd1b565cb39bdf8daad60acabfc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • meduza

C2
  • 5.182.86.229

Signatures

  • Meduza

    Meduza is a crypto wallet and info stealer written in C++.

  • Meduza Stealer payload 4 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1256
      • C:\Users\Admin\AppData\Local\Temp\file.exe
        "C:\Users\Admin\AppData\Local\Temp\file.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2276
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c move Sword Sword.bat && Sword.bat
          3⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2944
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:2084
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
              PID:1980
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              4⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:2720
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
              4⤵
                PID:2696
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c md 495824
                4⤵
                  PID:2756
                • C:\Windows\SysWOW64\findstr.exe
                  findstr /V "ExplainedApSegaWants" Buck
                  4⤵
                    PID:2464
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b 495824\Downloading.pif + Kirk + Resume + Environmental + Adjust + Optimal 495824\Downloading.pif
                    4⤵
                      PID:2580
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd /c copy /b Move + W + Skype + Besides + Winds 495824\L
                      4⤵
                        PID:2440
                      • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\Downloading.pif
                        495824\Downloading.pif 495824\L
                        4⤵
                        • Suspicious use of NtCreateUserProcessOtherParentProcess
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of FindShellTrayWindow
                        • Suspicious use of SendNotifyMessage
                        • Suspicious use of WriteProcessMemory
                        PID:2484
                      • C:\Windows\SysWOW64\PING.EXE
                        ping -n 5 127.0.0.1
                        4⤵
                        • Runs ping.exe
                        PID:2612
                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\Downloading.pif
                    "C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\Downloading.pif"
                    2⤵
                    • Checks computer location settings
                    • Executes dropped EXE
                    • Accesses Microsoft Outlook profiles
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of WriteProcessMemory
                    • outlook_office_path
                    • outlook_win_path
                    PID:1448
                    • C:\Windows\System32\cmd.exe
                      "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\Downloading.pif"
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2340
                      • C:\Windows\system32\PING.EXE
                        ping 1.1.1.1 -n 1 -w 3000
                        4⤵
                        • Runs ping.exe
                        PID:1348

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      Downloading.pif

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\Downloading.pif
                      • Size 28B
                      • SHA256 a797eb9f33292fd5cca5c741701b2aab9ac05662f9ae3b482352e326f73da04e
                      • MD5 SHA1 SHA512

                      L

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\L
                      • Size 1.2MB
                      • SHA256 32c835301815d1e0660efc9c09375caaeb75f90d2b1f77c6ceae295c156f80b4
                      • MD5 SHA1 SHA512 SSDEEP

                      Adjust

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Adjust
                      • Size 136KB
                      • SHA256 096c03a100040e3aa18471b45cb8676cffa084e14048ff25e2baa3b9ee6be286
                      • MD5 SHA1 SHA512 SSDEEP

                      Besides

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Besides
                      • Size 245KB
                      • SHA256 c5562d70a3486e40af0d77231324f6415383b676cd37d2be60a52f3066d159c4
                      • MD5 SHA1 SHA512 SSDEEP

                      Buck

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Buck
                      • Size 50B
                      • SHA256 4f8b24e2a41f06385a217d2cf3ba9118e3c9ff2e1af4898f8818ab6b4b47d608
                      • MD5 SHA1 SHA512

                      Environmental

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Environmental
                      • Size 298KB
                      • SHA256 6bb78419c4697b5287cf6f9b31d66357ee7a907c8b432a097bebb5f6bad403dc
                      • MD5 SHA1 SHA512 SSDEEP

                      Kirk

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Kirk
                      • Size 226KB
                      • SHA256 78cb40e0df6752c4454168d11f4af632825d95aeaf2901b475549b8fa6e860e7
                      • MD5 SHA1 SHA512 SSDEEP

                      Move

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Move
                      • Size 290KB
                      • SHA256 a2f1a59c5715117971c921258f1ee3f0d065dd695810c4924e150a518b02a437
                      • MD5 SHA1 SHA512 SSDEEP

                      Optimal

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Optimal
                      • Size 131KB
                      • SHA256 2cac89fb2c6f1153b8a9e824e7e934fbb969c01f626fbaf65d3411d9e8b4c962
                      • MD5 SHA1 SHA512 SSDEEP

                      Resume

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Resume
                      • Size 199KB
                      • SHA256 08d11b731018d74681d829202e8926ed547023aaeea764bb3d6f426f2e531883
                      • MD5 SHA1 SHA512 SSDEEP

                      Skype

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Skype
                      • Size 266KB
                      • SHA256 12c7a7d489c0c2032fd37edaf8c0616e4ff44e0d2f6ed0b9ebdae834d262d764
                      • MD5 SHA1 SHA512 SSDEEP

                      Sword

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Sword
                      • Size 19KB
                      • SHA256 f6238ef450cbf68796a99593c18eb1e64d359263c77baf4aec1acb942fe808ee
                      • MD5 SHA1 SHA512 SSDEEP

                      W

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\W
                      • Size 252KB
                      • SHA256 80810fa392f77775e1415507bde2a6c7a3a18cc442494db47e089c64886694d8
                      • MD5 SHA1 SHA512 SSDEEP

                      Winds

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Winds
                      • Size 223KB
                      • SHA256 ddef45c206e72ac0ab26c1793cfd8bb8f2c34ca6acc7f3bdc196b0fc2ddcf04a
                      • MD5 SHA1 SHA512 SSDEEP

                      Downloading.pif

                      • Path \Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\495824\Downloading.pif
                      • Size 990KB
                      • SHA256 e528c2a6706b5ad536c7d5b745fbb037ae5ed197df4d687321eeb119c60007b3
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/1448-34-0x0000000000530000-0x0000000000603000-memory.dmp

                      memory/1448-35-0x0000000000530000-0x0000000000603000-memory.dmp

                      memory/1448-38-0x0000000000530000-0x0000000000603000-memory.dmp

                      memory/1448-39-0x0000000000530000-0x0000000000603000-memory.dmp

                      memory/1448-55-0x0000000000530000-0x0000000000603000-memory.dmp

                      memory/2484-32-0x0000000000120000-0x0000000000121000-memory.dmp