Resubmissions

18/10/2022, 04:32

221018-e51g6seeb810

18/10/2022, 04:06

221018-epj59aedd67

18/10/2022, 03:34

221018-d417mseefj10

Analysis

  • max time kernel
    300s
  • max time network
    304s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    18/10/2022, 03:34

General

  • Target
    be9d0c8a2051d70d4434e034647c8b675a38c1f08252c94c1620fbe663bd853b.exe
  • Size 521KB
  • Sample221018-d417mseefj
  • SHA256 be9d0c8a2051d70d4434e034647c8b675a38c1f08252c94c1620fbe663bd853b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

Botnet
  • BirjRo1

C2
  • 79.137.197.136:23532

Attributes
  • auth_value

    278e5c62cf6a9bb4e0ab732b17b0368e

Signatures

  • RedLine

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

  • RedLine payload 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 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.

  • Modifies WinLogon 2 TTPs 4 IoCs
  • Drops file in Windows directory 9 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Runs net.exe
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be9d0c8a2051d70d4434e034647c8b675a38c1f08252c94c1620fbe663bd853b.exe
    "C:\Users\Admin\AppData\Local\Temp\be9d0c8a2051d70d4434e034647c8b675a38c1f08252c94c1620fbe663bd853b.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Modifies WinLogon
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c net user %username%
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1652
      • C:\Windows\SysWOW64\net.exe
        net user Admin
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1080
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 user Admin
          4⤵
            PID:2000
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c powershell.exe Set-ExecutionPolicy bypass -Force
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1776
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe Set-ExecutionPolicy bypass -Force
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:944
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c powershell.exe Add-MpPreference -ExclusionPath C:\Windows\SvcManager
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:892
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe Add-MpPreference -ExclusionPath C:\Windows\SvcManager
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1832
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c powershell.exe C:\Windows\SvcManager\las.ps1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1464
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe C:\Windows\SvcManager\las.ps1
          3⤵
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1872
          • C:\Windows\SysWOW64\SecEdit.exe
            "C:\Windows\system32\SecEdit.exe" /export /cfg tempexport.inf
            4⤵
            • Drops file in Windows directory
            PID:1124
          • C:\Windows\SysWOW64\SecEdit.exe
            "C:\Windows\system32\SecEdit.exe" /import /db secedit.sdb /cfg .\tempimport.inf
            4⤵
              PID:1560
            • C:\Windows\SysWOW64\SecEdit.exe
              "C:\Windows\system32\SecEdit.exe" /configure /db secedit.sdb
              4⤵
                PID:1848
              • C:\Windows\SysWOW64\gpupdate.exe
                "C:\Windows\system32\gpupdate.exe" /force
                4⤵
                  PID:1184
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del /f C:\Windows\SvcManager\las.ps1
              2⤵
                PID:1820
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c cls
                2⤵
                  PID:1460
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\\extra.exe
                  2⤵
                  • Loads dropped DLL
                  PID:2032
                  • C:\Users\Admin\AppData\Local\Temp\extra.exe
                    C:\Users\Admin\AppData\Local\Temp\\extra.exe
                    3⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:740
                • C:\Windows\SysWOW64\cmd.exe
                  cmd.exe /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\be9d0c8a2051d70d4434e034647c8b675a38c1f08252c94c1620fbe663bd853b.exe"
                  2⤵
                  • Deletes itself
                  PID:584
                  • C:\Windows\SysWOW64\PING.EXE
                    ping 1.1.1.1 -n 1 -w 3000
                    3⤵
                    • Runs ping.exe
                    PID:1408
              • C:\Windows\SvcManager\svcmgr.exe
                C:\Windows\SvcManager\svcmgr.exe
                1⤵
                • Executes dropped EXE
                • Modifies data under HKEY_USERS
                • Suspicious use of AdjustPrivilegeToken
                PID:876
              • C:\Windows\SvcManager\svcmgr.exe
                C:\Windows\SvcManager\svcmgr.exe
                1⤵
                • Executes dropped EXE
                • Modifies data under HKEY_USERS
                • Suspicious use of AdjustPrivilegeToken
                PID:1532
              • C:\Windows\SvcManager\svcmgr.exe
                C:\Windows\SvcManager\svcmgr.exe
                1⤵
                • Executes dropped EXE
                • Modifies data under HKEY_USERS
                • Suspicious use of AdjustPrivilegeToken
                PID:1780

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    extra.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\extra.exe
                    • Size 137KB
                    • SHA256 f6eb83f11c4e97e037def9bcca9685beaf38e7a172f4b60e28ba9b479657db2c
                    • MD5 SHA1 SHA512 SSDEEP

                    extra.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\extra.exe
                    • Size 137KB
                    • SHA256 f6eb83f11c4e97e037def9bcca9685beaf38e7a172f4b60e28ba9b479657db2c
                    • MD5 SHA1 SHA512 SSDEEP

                    d93f411851d7c929.customDestinations-ms

                    • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
                    • Size 7KB
                    • SHA256 ebde9b677b929d76c91960c6f61540f9729d2289612b5923e7e647e5580c420a
                    • MD5 SHA1 SHA512 SSDEEP

                    d93f411851d7c929.customDestinations-ms

                    • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
                    • Size 7KB
                    • SHA256 ebde9b677b929d76c91960c6f61540f9729d2289612b5923e7e647e5580c420a
                    • MD5 SHA1 SHA512 SSDEEP

                    las.ps1

                    • Path C:\Windows\SvcManager\las.ps1
                    • Size 1KB
                    • SHA256 f63923ddc20574ca230a3b51bf7a6bf158a53f84494e2081071c3469abb068ca
                    • MD5 SHA1 SHA512

                    svcmgr.exe

                    • Path C:\Windows\SvcManager\svcmgr.exe
                    • Size 788KB
                    • SHA256 e707fad41b65d06c3b6e7b2a61aa616c8256546cd9fae1acf5fa0e07d62034fe
                    • MD5 SHA1 SHA512 SSDEEP

                    svcmgr.exe

                    • Path C:\Windows\SvcManager\svcmgr.exe
                    • Size 788KB
                    • SHA256 e707fad41b65d06c3b6e7b2a61aa616c8256546cd9fae1acf5fa0e07d62034fe
                    • MD5 SHA1 SHA512 SSDEEP

                    svcmgr.exe

                    • Path C:\Windows\SvcManager\svcmgr.exe
                    • Size 788KB
                    • SHA256 e707fad41b65d06c3b6e7b2a61aa616c8256546cd9fae1acf5fa0e07d62034fe
                    • MD5 SHA1 SHA512 SSDEEP

                    svcmgr.exe

                    • Path C:\Windows\SvcManager\svcmgr.exe
                    • Size 788KB
                    • SHA256 e707fad41b65d06c3b6e7b2a61aa616c8256546cd9fae1acf5fa0e07d62034fe
                    • MD5 SHA1 SHA512 SSDEEP

                    tempexport.inf

                    • Path C:\Windows\SvcManager\tempexport.inf
                    • Size 16KB
                    • SHA256 85773e2c05d587ae800deae43ab836164aab7d35118cf4b2c0029a11fd17c8ee
                    • MD5 SHA1 SHA512 SSDEEP

                    extra.exe

                    • Path \Users\Admin\AppData\Local\Temp\extra.exe
                    • Size 137KB
                    • SHA256 f6eb83f11c4e97e037def9bcca9685beaf38e7a172f4b60e28ba9b479657db2c
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/740-96-0x0000000000080000-0x00000000000A8000-memory.dmp

                    memory/876-90-0x0000000000D90000-0x0000000000E5C000-memory.dmp

                    memory/876-98-0x0000000000CA0000-0x0000000000D46000-memory.dmp

                    memory/944-65-0x00000000739A0000-0x0000000073F4B000-memory.dmp

                    memory/944-62-0x0000000075451000-0x0000000075453000-memory.dmp

                    memory/944-64-0x00000000739A0000-0x0000000073F4B000-memory.dmp

                    memory/1404-54-0x0000000000698000-0x00000000006F5000-memory.dmp

                    memory/1404-82-0x00000000002D0000-0x0000000000371000-memory.dmp

                    memory/1404-83-0x0000000000698000-0x00000000006F5000-memory.dmp

                    memory/1404-84-0x0000000000400000-0x00000000005DF000-memory.dmp

                    memory/1404-55-0x0000000000698000-0x00000000006F5000-memory.dmp

                    memory/1404-100-0x0000000000698000-0x00000000006F5000-memory.dmp

                    memory/1404-101-0x0000000000400000-0x00000000005DF000-memory.dmp

                    memory/1404-56-0x00000000002D0000-0x0000000000371000-memory.dmp

                    memory/1404-63-0x0000000000400000-0x00000000005DF000-memory.dmp

                    memory/1532-104-0x0000000000F20000-0x0000000000FEC000-memory.dmp

                    memory/1832-70-0x0000000073180000-0x000000007372B000-memory.dmp

                    memory/1872-77-0x0000000072BD0000-0x000000007317B000-memory.dmp

                    memory/1872-85-0x0000000072BD0000-0x000000007317B000-memory.dmp