Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    29/09/2021, 15:01

General

  • Target
    5021c0258bf60f4ffe914b6955310b6c.exe
  • Size 128KB
  • Sample210929-sdwa2afcfn
  • SHA256 d14036b4ab78b2c6121138471582c33a4bf0dbd2076f4c9e640d34a994fce2d3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://fiskahlilian16.top/

  • http://paishancho17.top/

  • http://ydiannetter18.top/

  • http://azarehanelle19.top/

  • http://quericeriant20.top/

rc4.i32
rc4.i32

Extracted

Family
  • redline

Botnet
  • 5k superstar

C2
  • narlelalik.xyz:12509

Extracted

Family
  • redline

Botnet
  • @Dcm4Gentoo

C2
  • 5.61.61.168:14462

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • RedLine

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

  • RedLine Payload 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 19 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 2 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
  • 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 SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5021c0258bf60f4ffe914b6955310b6c.exe
    "C:\Users\Admin\AppData\Local\Temp\5021c0258bf60f4ffe914b6955310b6c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Users\Admin\AppData\Local\Temp\5021c0258bf60f4ffe914b6955310b6c.exe
      "C:\Users\Admin\AppData\Local\Temp\5021c0258bf60f4ffe914b6955310b6c.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1992
  • C:\Users\Admin\AppData\Local\Temp\1228.exe
    C:\Users\Admin\AppData\Local\Temp\1228.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1468
  • C:\Users\Admin\AppData\Local\Temp\1B5D.exe
    C:\Users\Admin\AppData\Local\Temp\1B5D.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c cmd < Disegnato.accdt
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\cmd.exe
        cmd
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:768
        • C:\Windows\SysWOW64\findstr.exe
          findstr /V /R "^jdBXEbiICLfWHIEKiKDpCGJMhheipdUFFbTuIYbnunkESZAKxLCvDshGHOJdxqnjRKspPbwohtetxtThNsMbNbwgpjnTfutuZYMoIdVXJxpmgpkCUcCehqnzJrZDZoTuqWycaLEb$" Sottrarre.accdt
          4⤵
            PID:564
          • C:\Users\Admin\AppData\Roaming\Mio.exe.com
            Mio.exe.com W
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:628
            • C:\Users\Admin\AppData\Roaming\Mio.exe.com
              C:\Users\Admin\AppData\Roaming\Mio.exe.com W
              5⤵
              • Executes dropped EXE
              • Drops startup file
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              PID:980
              • C:\Users\Admin\AppData\Roaming\RegAsm.exe
                C:\Users\Admin\AppData\Roaming\RegAsm.exe
                6⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of AdjustPrivilegeToken
                PID:1964
                • C:\Users\Admin\AppData\Local\Temp\file.exe
                  "C:\Users\Admin\AppData\Local\Temp\file.exe"
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:1904
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c cmd < Fai.docm
                    8⤵
                      PID:1004
                      • C:\Windows\SysWOW64\cmd.exe
                        cmd
                        9⤵
                        • Loads dropped DLL
                        PID:556
                        • C:\Windows\SysWOW64\findstr.exe
                          findstr /V /R "^GOSDsHyjVXPbHfUPrvXbfGmmRjqhEkBpmOaXJUKhlpsdBcqWKjtUUPkqgaMyGSIJcGXTWWupMKjygoYcktDaiHgKCaJdiEHaBIUVbiZOuUolCyMyxsU$" Per.docm
                          10⤵
                            PID:1492
                          • C:\Users\Admin\AppData\Roaming\Prime.exe.com
                            Prime.exe.com P
                            10⤵
                            • Executes dropped EXE
                            PID:836
                            • C:\Users\Admin\AppData\Roaming\Prime.exe.com
                              C:\Users\Admin\AppData\Roaming\Prime.exe.com P
                              11⤵
                              • Executes dropped EXE
                              • Drops startup file
                              • Suspicious use of SetThreadContext
                              PID:644
                              • C:\Users\Admin\AppData\Roaming\Prime.exe.com
                                C:\Users\Admin\AppData\Roaming\Prime.exe.com
                                12⤵
                                  PID:1572
                            • C:\Windows\SysWOW64\PING.EXE
                              ping localhost
                              10⤵
                              • Runs ping.exe
                              PID:1600
                • C:\Windows\SysWOW64\PING.EXE
                  ping localhost
                  4⤵
                  • Runs ping.exe
                  PID:1364
          • C:\Users\Admin\AppData\Local\Temp\24B1.exe
            C:\Users\Admin\AppData\Local\Temp\24B1.exe
            1⤵
            • Modifies WinLogon for persistence
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:644
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-NetConnection -TraceRoute twitch.com
              2⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2024
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5
              2⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1596
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1304
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1528
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1300
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1052
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1600
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1760
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1464
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1608
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1216
            • C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
              2⤵
              • Executes dropped EXE
              PID:1144

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/644-170-0x0000000000120000-0x0000000000121000-memory.dmp

                memory/644-114-0x000000001B1A0000-0x000000001B1D9000-memory.dmp

                memory/644-100-0x000000001BC10000-0x000000001BC12000-memory.dmp

                memory/644-115-0x00000000022A0000-0x00000000022BB000-memory.dmp

                memory/644-94-0x000000013F6A0000-0x000000013F6A1000-memory.dmp

                memory/980-137-0x00000000001A0000-0x00000000001A1000-memory.dmp

                memory/1144-56-0x0000000000220000-0x0000000000229000-memory.dmp

                memory/1392-57-0x0000000002110000-0x0000000002125000-memory.dmp

                memory/1468-89-0x00000000049D1000-0x00000000049D2000-memory.dmp

                memory/1468-86-0x0000000001F20000-0x0000000001F3E000-memory.dmp

                memory/1468-82-0x00000000003E0000-0x00000000003FF000-memory.dmp

                memory/1468-99-0x00000000049D4000-0x00000000049D6000-memory.dmp

                memory/1468-87-0x0000000000400000-0x0000000000454000-memory.dmp

                memory/1468-91-0x00000000049D3000-0x00000000049D4000-memory.dmp

                memory/1468-90-0x00000000049D2000-0x00000000049D3000-memory.dmp

                memory/1468-83-0x0000000000230000-0x0000000000260000-memory.dmp

                memory/1572-171-0x0000000000460000-0x00000000004D4000-memory.dmp

                memory/1596-111-0x0000000002482000-0x0000000002484000-memory.dmp

                memory/1596-110-0x0000000002480000-0x0000000002482000-memory.dmp

                memory/1596-113-0x000000000248B000-0x00000000024AA000-memory.dmp

                memory/1596-112-0x0000000002484000-0x0000000002487000-memory.dmp

                memory/1596-108-0x000007FEECDC0000-0x000007FEED91D000-memory.dmp

                memory/1964-143-0x00000000000F0000-0x0000000000112000-memory.dmp

                memory/1964-138-0x00000000000F0000-0x0000000000112000-memory.dmp

                memory/1964-145-0x0000000004A40000-0x0000000004A41000-memory.dmp

                memory/1992-55-0x0000000076581000-0x0000000076583000-memory.dmp

                memory/1992-53-0x0000000000400000-0x0000000000409000-memory.dmp

                memory/2024-98-0x000007FEFBC91000-0x000007FEFBC93000-memory.dmp

                memory/2024-101-0x00000000024F0000-0x00000000024F2000-memory.dmp

                memory/2024-102-0x000007FEECDC0000-0x000007FEED91D000-memory.dmp

                memory/2024-103-0x00000000024F2000-0x00000000024F4000-memory.dmp

                memory/2024-104-0x00000000024F4000-0x00000000024F7000-memory.dmp

                memory/2024-109-0x00000000024FB000-0x000000000251A000-memory.dmp