Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    23/10/2021, 15:59

General

  • Target
    Valorant SkinChanger.exe
  • Size 2.3MB
  • Sample211023-te3beadcfn
  • SHA256 9e3f93ae0a1f76351b69714917b3f1cd965b09e2e696964b28d693c14f71f007
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Valorant SkinChanger.exe
    "C:\Users\Admin\AppData\Local\Temp\Valorant SkinChanger.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\main\main.bat" /S"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\system32\mode.com
        mode 65,10
        3⤵
          PID:4244
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e file.zip -p___________29783pwd19393pwd12772pwd8909pwd27852pwd25744pwd14383___________ -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4236
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_10.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1676
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_9.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4356
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_8.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4404
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_7.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4324
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_6.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1020
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_5.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1116
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_4.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1320
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_3.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1440
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_2.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1624
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_1.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:1812
        • C:\Windows\system32\attrib.exe
          attrib +H "bild.exe"
          3⤵
          • Views/modifies file attributes
          PID:2084
        • C:\Users\Admin\AppData\Local\Temp\main\bild.exe
          "bild.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2208
          • C:\Users\Admin\AppData\Local\Temp\sys32.exe
            "C:\Users\Admin\AppData\Local\Temp\sys32.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3168
            • C:\Windows\System32\conhost.exe
              "C:\Windows\System32\\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\sys32.exe"
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3688
              • C:\Windows\System32\cmd.exe
                "cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:1524
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
                  7⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4728
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
                  7⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4512
              • C:\Windows\System32\cmd.exe
                "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "services32" /tr "C:\Users\Admin\services32.exe"
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:5008
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc onlogon /rl highest /tn "services32" /tr "C:\Users\Admin\services32.exe"
                  7⤵
                  • Creates scheduled task(s)
                  PID:604
              • C:\Windows\System32\cmd.exe
                "cmd" cmd /c "C:\Users\Admin\services32.exe"
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:2456
                • C:\Users\Admin\services32.exe
                  C:\Users\Admin\services32.exe
                  7⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:2984
                  • C:\Windows\System32\conhost.exe
                    "C:\Windows\System32\\conhost.exe" "C:\Users\Admin\services32.exe"
                    8⤵
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of WriteProcessMemory
                    PID:1756
                    • C:\Windows\System32\cmd.exe
                      "cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
                      9⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3604
                      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                        powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
                        10⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3200
                      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                        powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
                        10⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1216
                    • C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost32.exe
                      "C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost32.exe"
                      9⤵
                      • Executes dropped EXE
                      • Suspicious use of WriteProcessMemory
                      PID:4252
                      • C:\Windows\System32\conhost.exe
                        "C:\Windows\System32\\conhost.exe" "/sihost32"
                        10⤵
                          PID:3160

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/1216-409-0x00000198C5958000-0x00000198C5959000-memory.dmp

            memory/1216-408-0x00000198C5956000-0x00000198C5958000-memory.dmp

            memory/1216-383-0x00000198C5953000-0x00000198C5955000-memory.dmp

            memory/1216-382-0x00000198C5950000-0x00000198C5952000-memory.dmp

            memory/1756-312-0x000001604D8B6000-0x000001604D8B7000-memory.dmp

            memory/1756-311-0x000001604D8B3000-0x000001604D8B5000-memory.dmp

            memory/1756-310-0x000001604D8B0000-0x000001604D8B2000-memory.dmp

            memory/2208-175-0x0000000005620000-0x0000000005C26000-memory.dmp

            memory/2208-168-0x0000000000370000-0x0000000000371000-memory.dmp

            memory/2208-182-0x0000000008730000-0x0000000008731000-memory.dmp

            memory/2208-172-0x0000000004D80000-0x0000000004D81000-memory.dmp

            memory/2208-173-0x0000000004D30000-0x0000000004D31000-memory.dmp

            memory/2208-174-0x0000000004F30000-0x0000000004F31000-memory.dmp

            memory/2208-170-0x0000000005120000-0x0000000005121000-memory.dmp

            memory/2208-177-0x0000000005B10000-0x0000000005B11000-memory.dmp

            memory/2208-179-0x00000000075C0000-0x00000000075C1000-memory.dmp

            memory/2208-183-0x0000000008E30000-0x0000000008E31000-memory.dmp

            memory/2208-180-0x0000000007920000-0x0000000007921000-memory.dmp

            memory/2208-181-0x0000000008410000-0x0000000008411000-memory.dmp

            memory/2208-176-0x0000000005720000-0x0000000005721000-memory.dmp

            memory/2208-178-0x0000000007500000-0x0000000007501000-memory.dmp

            memory/2208-171-0x0000000005C30000-0x0000000005C31000-memory.dmp

            memory/3160-419-0x000001BF53B60000-0x000001BF53B62000-memory.dmp

            memory/3160-418-0x000001BF39710000-0x000001BF39717000-memory.dmp

            memory/3160-420-0x000001BF53B63000-0x000001BF53B65000-memory.dmp

            memory/3160-421-0x000001BF53B66000-0x000001BF53B67000-memory.dmp

            memory/3200-363-0x00000198254B6000-0x00000198254B8000-memory.dmp

            memory/3200-313-0x00000198254B0000-0x00000198254B2000-memory.dmp

            memory/3200-314-0x00000198254B3000-0x00000198254B5000-memory.dmp

            memory/3200-381-0x00000198254B8000-0x00000198254B9000-memory.dmp

            memory/3688-213-0x0000015D1DB06000-0x0000015D1DB07000-memory.dmp

            memory/3688-195-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-188-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-187-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-189-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-190-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-191-0x0000015D05080000-0x0000015D0508C000-memory.dmp

            memory/3688-193-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-194-0x0000015D050D0000-0x0000015D050D1000-memory.dmp

            memory/3688-209-0x0000015D03620000-0x0000015D0362F000-memory.dmp

            memory/3688-210-0x0000015D1DB00000-0x0000015D1DB02000-memory.dmp

            memory/3688-207-0x0000015D05050000-0x0000015D05052000-memory.dmp

            memory/3688-212-0x0000015D1DB03000-0x0000015D1DB05000-memory.dmp

            memory/4512-249-0x000002B7276C0000-0x000002B7276C2000-memory.dmp

            memory/4512-280-0x000002B727710000-0x000002B727712000-memory.dmp

            memory/4512-285-0x000002B727718000-0x000002B727719000-memory.dmp

            memory/4512-282-0x000002B727716000-0x000002B727718000-memory.dmp

            memory/4512-281-0x000002B727713000-0x000002B727715000-memory.dmp

            memory/4512-247-0x000002B7276C0000-0x000002B7276C2000-memory.dmp

            memory/4512-248-0x000002B7276C0000-0x000002B7276C2000-memory.dmp

            memory/4728-204-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-214-0x0000020F5F0D0000-0x0000020F5F0D2000-memory.dmp

            memory/4728-201-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-202-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-215-0x0000020F5F0D3000-0x0000020F5F0D5000-memory.dmp

            memory/4728-200-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-217-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-199-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-198-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-203-0x0000020F5F030000-0x0000020F5F031000-memory.dmp

            memory/4728-205-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-206-0x0000020F5FBF0000-0x0000020F5FBF1000-memory.dmp

            memory/4728-244-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-243-0x0000020F5F0D8000-0x0000020F5F0D9000-memory.dmp

            memory/4728-240-0x0000020F5F0D6000-0x0000020F5F0D8000-memory.dmp

            memory/4728-220-0x0000020F45140000-0x0000020F45142000-memory.dmp

            memory/4728-219-0x0000020F45140000-0x0000020F45142000-memory.dmp