Analysis

  • max time kernel
    146s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    30/12/2021, 10:17

General

  • Target
    Skinschanger.exe
  • Size 1.1MB
  • Sample211230-mbc4saecgr
  • SHA256 4fce37e360ca280e7aca9ce2eacef82c77a4b7d62bf23a447fe582ad79847d4d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

C2
  • 45.153.184.61:34783

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • RedLine

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

  • RedLine Payload 6 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 16 IoCs
  • Loads dropped DLL 19 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
  • Adds Run key to start application 2 TTPs 16 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 NtSetInformationThreadHideFromDebugger 62 IoCs
  • Suspicious use of SetThreadContext 31 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Skinschanger.exe
    "C:\Users\Admin\AppData\Local\Temp\Skinschanger.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      #cmd
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1576
      • C:\Users\Admin\AppData\Local\Temp\deadcloud1_build.exe
        "C:\Users\Admin\AppData\Local\Temp\deadcloud1_build.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1736
        • C:\Windows\bfsvc.exe
          C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
          4⤵
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          PID:2004
        • C:\Windows\explorer.exe
          "C:\Windows\explorer.exe"
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2040
          • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
            5⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1768
            • C:\Windows\bfsvc.exe
              C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
              6⤵
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              PID:760
            • C:\Windows\explorer.exe
              "C:\Windows\explorer.exe"
              6⤵
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:1320
              • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                7⤵
                • Executes dropped EXE
                • Adds Run key to start application
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of SetThreadContext
                PID:1528
                • C:\Windows\bfsvc.exe
                  C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                  8⤵
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  PID:1176
                • C:\Windows\explorer.exe
                  "C:\Windows\explorer.exe"
                  8⤵
                  • Loads dropped DLL
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1576
                  • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                    "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                    9⤵
                    • Executes dropped EXE
                    • Adds Run key to start application
                    • Suspicious use of NtSetInformationThreadHideFromDebugger
                    • Suspicious use of SetThreadContext
                    PID:2036
                    • C:\Windows\bfsvc.exe
                      C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                      10⤵
                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                      PID:1988
                    • C:\Windows\explorer.exe
                      "C:\Windows\explorer.exe"
                      10⤵
                      • Loads dropped DLL
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2004
                      • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                        "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                        11⤵
                        • Executes dropped EXE
                        • Adds Run key to start application
                        • Suspicious use of NtSetInformationThreadHideFromDebugger
                        • Suspicious use of SetThreadContext
                        PID:652
                        • C:\Windows\bfsvc.exe
                          C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                          12⤵
                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                          PID:1336
                        • C:\Windows\explorer.exe
                          "C:\Windows\explorer.exe"
                          12⤵
                          • Loads dropped DLL
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1560
                          • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                            "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                            13⤵
                            • Executes dropped EXE
                            • Adds Run key to start application
                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                            • Suspicious use of SetThreadContext
                            PID:1976
                            • C:\Windows\bfsvc.exe
                              C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                              14⤵
                              • Suspicious use of NtSetInformationThreadHideFromDebugger
                              PID:2024
                            • C:\Windows\explorer.exe
                              "C:\Windows\explorer.exe"
                              14⤵
                              • Loads dropped DLL
                              • Suspicious behavior: EnumeratesProcesses
                              PID:1744
                              • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                15⤵
                                • Executes dropped EXE
                                • Adds Run key to start application
                                • Suspicious use of NtSetInformationThreadHideFromDebugger
                                • Suspicious use of SetThreadContext
                                PID:1628
                                • C:\Windows\bfsvc.exe
                                  C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                  16⤵
                                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                                  PID:548
                                • C:\Windows\explorer.exe
                                  "C:\Windows\explorer.exe"
                                  16⤵
                                  • Loads dropped DLL
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:1084
                                  • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                    "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                    17⤵
                                    • Executes dropped EXE
                                    • Adds Run key to start application
                                    • Suspicious use of NtSetInformationThreadHideFromDebugger
                                    • Suspicious use of SetThreadContext
                                    PID:1752
                                    • C:\Windows\bfsvc.exe
                                      C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                      18⤵
                                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                                      PID:1584
                                    • C:\Windows\explorer.exe
                                      "C:\Windows\explorer.exe"
                                      18⤵
                                      • Loads dropped DLL
                                      PID:1052
                                      • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                        "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                        19⤵
                                        • Executes dropped EXE
                                        • Adds Run key to start application
                                        PID:1484
                                        • C:\Windows\bfsvc.exe
                                          C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                          20⤵
                                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                                          PID:1620
                                        • C:\Windows\explorer.exe
                                          "C:\Windows\explorer.exe"
                                          20⤵
                                          • Loads dropped DLL
                                          PID:1324
                                          • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                            "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                            21⤵
                                            • Executes dropped EXE
                                            • Adds Run key to start application
                                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                                            • Suspicious use of SetThreadContext
                                            PID:1764
                                            • C:\Windows\bfsvc.exe
                                              C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                              22⤵
                                              • Suspicious use of NtSetInformationThreadHideFromDebugger
                                              PID:1600
                                            • C:\Windows\explorer.exe
                                              "C:\Windows\explorer.exe"
                                              22⤵
                                              • Loads dropped DLL
                                              PID:1412
                                              • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                                "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                                23⤵
                                                • Executes dropped EXE
                                                • Adds Run key to start application
                                                • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                • Suspicious use of SetThreadContext
                                                PID:972
                                                • C:\Windows\bfsvc.exe
                                                  C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                                  24⤵
                                                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                  PID:1264
                                                • C:\Windows\explorer.exe
                                                  "C:\Windows\explorer.exe"
                                                  24⤵
                                                  • Loads dropped DLL
                                                  PID:1272
                                                  • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                                    "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                                    25⤵
                                                    • Executes dropped EXE
                                                    • Adds Run key to start application
                                                    • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                    • Suspicious use of SetThreadContext
                                                    PID:1788
                                                    • C:\Windows\bfsvc.exe
                                                      C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                                      26⤵
                                                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                      PID:1260
                                                    • C:\Windows\explorer.exe
                                                      "C:\Windows\explorer.exe"
                                                      26⤵
                                                      • Loads dropped DLL
                                                      PID:1576
                                                      • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                                        "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                                        27⤵
                                                        • Executes dropped EXE
                                                        • Adds Run key to start application
                                                        • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                        • Suspicious use of SetThreadContext
                                                        PID:968
                                                        • C:\Windows\bfsvc.exe
                                                          C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                                          28⤵
                                                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                          PID:912
                                                        • C:\Windows\explorer.exe
                                                          "C:\Windows\explorer.exe"
                                                          28⤵
                                                          • Loads dropped DLL
                                                          PID:788
                                                          • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                                            "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                                            29⤵
                                                            • Executes dropped EXE
                                                            • Adds Run key to start application
                                                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                            • Suspicious use of SetThreadContext
                                                            PID:2028
                                                            • C:\Windows\bfsvc.exe
                                                              C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                                              30⤵
                                                              • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                              PID:1220
                                                            • C:\Windows\explorer.exe
                                                              "C:\Windows\explorer.exe"
                                                              30⤵
                                                              • Loads dropped DLL
                                                              PID:364
                                                              • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                                                "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                                                31⤵
                                                                • Executes dropped EXE
                                                                • Adds Run key to start application
                                                                • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                                • Suspicious use of SetThreadContext
                                                                PID:1980
                                                                • C:\Windows\bfsvc.exe
                                                                  C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                                                  32⤵
                                                                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                                  PID:1584
                                                                • C:\Windows\explorer.exe
                                                                  "C:\Windows\explorer.exe"
                                                                  32⤵
                                                                  • Loads dropped DLL
                                                                  PID:1480
                                                                  • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe
                                                                    "C:\Users\Admin\AppData\Roaming\Microsoft\RegHost.exe"
                                                                    33⤵
                                                                    • Executes dropped EXE
                                                                    • Adds Run key to start application
                                                                    • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                                    • Suspicious use of SetThreadContext
                                                                    PID:1624
                                                                    • C:\Windows\bfsvc.exe
                                                                      C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 0x9dEbea19ca7c4Af9B41c6A4F1DC7fa9541AE9696 -coin etc -worker EasyMiner_Bot -cclock +500 -cvddc +500
                                                                      34⤵
                                                                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                                                                      PID:2036
                                                                    • C:\Windows\explorer.exe
                                                                      "C:\Windows\explorer.exe"
                                                                      34⤵
                                                                        PID:332

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/652-191-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/948-56-0x0000000004C90000-0x0000000004C91000-memory.dmp

          memory/948-55-0x00000000008E0000-0x00000000009F6000-memory.dmp

          memory/948-54-0x00000000008E0000-0x00000000009F6000-memory.dmp

          memory/972-333-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1528-134-0x000000013F3B0000-0x0000000140A2E000-memory.dmp

          memory/1528-135-0x000000013F3B0000-0x0000000140A2E000-memory.dmp

          memory/1528-133-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1576-64-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1576-57-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1576-58-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1576-59-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1576-60-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1576-65-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1576-66-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

          memory/1576-63-0x0000000075601000-0x0000000075603000-memory.dmp

          memory/1576-61-0x0000000000400000-0x0000000000422000-memory.dmp

          memory/1624-479-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1628-247-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1736-73-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1736-75-0x000000013F650000-0x0000000140CCE000-memory.dmp

          memory/1736-74-0x000000013F650000-0x0000000140CCE000-memory.dmp

          memory/1752-273-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1764-311-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1768-106-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1768-105-0x000000013F800000-0x0000000140E7E000-memory.dmp

          memory/1768-107-0x000000013F800000-0x0000000140E7E000-memory.dmp

          memory/1788-367-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1976-222-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/1980-444-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/2004-79-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-85-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-76-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-77-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-78-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-98-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-81-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-82-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-83-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-84-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2004-80-0x0000000140000000-0x0000000140815000-memory.dmp

          memory/2028-417-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/2036-161-0x000007FFFFBD0000-0x000007FFFFFA1000-memory.dmp

          memory/2040-93-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-92-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-91-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-94-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-95-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-97-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-99-0x000007FEFB771000-0x000007FEFB773000-memory.dmp

          memory/2040-88-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-90-0x0000000140000000-0x0000000140022000-memory.dmp

          memory/2040-89-0x0000000140000000-0x0000000140022000-memory.dmp