Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    16/01/2024, 17:16

General

  • Target
    5CFCF21174BE2024EE356D7219BC5C17.exe
  • Size 1.1MB
  • Sample240116-vs4xtsfden
  • SHA256 cbf7d9a996e468305ef104f80f50d6f6b4208223b199deb8011919e5ce607d9c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

Botnet
  • seo2

C2
  • 185.242.86.221:1523

Signatures

  • RedLine

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

  • RedLine payload 4 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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).

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1384
      • C:\Users\Admin\AppData\Local\Temp\5CFCF21174BE2024EE356D7219BC5C17.exe
        "C:\Users\Admin\AppData\Local\Temp\5CFCF21174BE2024EE356D7219BC5C17.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1748
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k cmd < Graham & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1308
          • C:\Windows\SysWOW64\cmd.exe
            cmd
            4⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2636
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              5⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:2652
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
              5⤵
                PID:2656
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist
                5⤵
                • Enumerates processes with tasklist
                • Suspicious use of AdjustPrivilegeToken
                PID:2608
              • C:\Windows\SysWOW64\findstr.exe
                findstr /I "wrsa.exe"
                5⤵
                  PID:1644
                • C:\Windows\SysWOW64\cmd.exe
                  cmd /c mkdir 17947
                  5⤵
                    PID:2476
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b Unified + Blackjack + Streets + Tax + Mastercard + Celebs 17947\Herein.pif
                    5⤵
                      PID:2472
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd /c copy /b Removed + Owner 17947\O
                      5⤵
                        PID:2616
                      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\17947\Herein.pif
                        17947\Herein.pif 17947\O
                        5⤵
                        • Suspicious use of NtCreateUserProcessOtherParentProcess
                        • Executes dropped EXE
                        • Loads dropped DLL
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of FindShellTrayWindow
                        • Suspicious use of SendNotifyMessage
                        • Suspicious use of WriteProcessMemory
                        PID:1232
                      • C:\Windows\SysWOW64\PING.EXE
                        ping -n 5 localhost
                        5⤵
                        • Runs ping.exe
                        PID:2464
                • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\17947\jsc.exe
                  C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\17947\jsc.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1084

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    Herein.pif

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\17947\Herein.pif
                    • Size 924KB
                    • SHA256 f58d3a4b2f3f7f10815c24586fae91964eeed830369e7e0701b43895b0cefbd3
                    • MD5 SHA1 SHA512 SSDEEP

                    O

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\17947\O
                    • Size 666KB
                    • SHA256 0f56e4319a6e4bb7149f2cc95b38f27ecb7fd1d9262d46b221882260ec2ce914
                    • MD5 SHA1 SHA512 SSDEEP

                    Blackjack

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Blackjack
                    • Size 202KB
                    • SHA256 59e2e02c06ff7420e6ea7ae30cd41814a83c4aee0f8a11344cb80e843a7c49c7
                    • MD5 SHA1 SHA512 SSDEEP

                    Celebs

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Celebs
                    • Size 43KB
                    • SHA256 04f1b50a94b2a6b267bab78b56eeecc9095faf904a05c669fb52803c585e5879
                    • MD5 SHA1 SHA512 SSDEEP

                    Graham

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Graham
                    • Size 12KB
                    • SHA256 8d9b0437a7872c415285ddded6bf7a334d211e72912e75497e62f92c036b60b2
                    • MD5 SHA1 SHA512 SSDEEP

                    Mastercard

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Mastercard
                    • Size 207KB
                    • SHA256 93a4f1ce66757c63cb962606b2228708cea346a036222c3b9827f0e4ebdda6be
                    • MD5 SHA1 SHA512 SSDEEP

                    Owner

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Owner
                    • Size 171KB
                    • SHA256 5557a6c3d8e28f93d705c66381b354a3748a73de90c418036b1d49376d5960ee
                    • MD5 SHA1 SHA512 SSDEEP

                    Removed

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Removed
                    • Size 495KB
                    • SHA256 af10c0827ea8554364fecaca1ba919960039cc6c688c7bfa4bd011130375a786
                    • MD5 SHA1 SHA512 SSDEEP

                    Streets

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Streets
                    • Size 142KB
                    • SHA256 3326ace0ed6b36100a186a6df9ffcd4d827399f9e35865cd653c90505fc95eab
                    • MD5 SHA1 SHA512 SSDEEP

                    Tax

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Tax
                    • Size 117KB
                    • SHA256 18cb34f3723b709f8f56c8b4c514c5be00583f0cd80299e12539a827ef295b53
                    • MD5 SHA1 SHA512 SSDEEP

                    Unified

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Unified
                    • Size 213KB
                    • SHA256 fc141ffe6bf256b8794c769feed25fa8bfeff01a60cdd2699e2d84e94585553c
                    • MD5 SHA1 SHA512 SSDEEP

                    jsc.exe

                    • Path \Users\Admin\AppData\Local\Temp\7ZipSfx.000\17947\jsc.exe
                    • Size 45KB
                    • SHA256 8f2800ac8af72e8038e146b3988a30651952f20ed6cdf7be3ae4709fbb026af1
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/1084-38-0x0000000000080000-0x00000000000D2000-memory.dmp

                    memory/1084-41-0x0000000000080000-0x00000000000D2000-memory.dmp

                    memory/1084-43-0x0000000000080000-0x00000000000D2000-memory.dmp

                    memory/1084-45-0x00000000741B0000-0x000000007489E000-memory.dmp

                    memory/1084-46-0x0000000004D10000-0x0000000004D50000-memory.dmp

                    memory/1084-47-0x00000000741B0000-0x000000007489E000-memory.dmp

                    memory/1084-48-0x0000000004D10000-0x0000000004D50000-memory.dmp

                    memory/1084-49-0x00000000741B0000-0x000000007489E000-memory.dmp

                    memory/1232-34-0x0000000000120000-0x0000000000121000-memory.dmp