Analysis

  • max time kernel
    129s
  • max time network
    155s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/07/2021, 09:44

General

  • Target
    5f5975aa54916c31a205ae5c29c0bfe2.exe
  • Size 368KB
  • Sample210715-letdbzjsba
  • SHA256 043544fc666b260b348dbd6c004ac8a76c62418e34b3330e6d0a1fac1dfc3f9f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • warzonerat

C2
  • sdafsdffssffs.ydns.eu:6703

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • AgentTesla Payload 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Sets DLL path for service in the registry 2 TTPs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Modifies WinLogon 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 47 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f5975aa54916c31a205ae5c29c0bfe2.exe
    "C:\Users\Admin\AppData\Local\Temp\5f5975aa54916c31a205ae5c29c0bfe2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:928
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1200
    • C:\Users\Admin\AppData\Local\Temp\5f5975aa54916c31a205ae5c29c0bfe2.exe
      C:\Users\Admin\AppData\Local\Temp\5f5975aa54916c31a205ae5c29c0bfe2.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3460
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /f /v Load /t REG_SZ /d "C:\ProgramData\images.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:688
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /f /v Load /t REG_SZ /d "C:\ProgramData\images.exe"
          4⤵
            PID:3888
        • C:\ProgramData\images.exe
          "C:\ProgramData\images.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4012
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:948
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2884
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:388
          • C:\Users\Admin\AppData\Local\Temp\images.exe
            C:\Users\Admin\AppData\Local\Temp\images.exe
            4⤵
            • Executes dropped EXE
            PID:3140
          • C:\Users\Admin\AppData\Local\Temp\images.exe
            C:\Users\Admin\AppData\Local\Temp\images.exe
            4⤵
            • Executes dropped EXE
            PID:2252
          • C:\Users\Admin\AppData\Local\Temp\images.exe
            C:\Users\Admin\AppData\Local\Temp\images.exe
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies WinLogon
            • Drops file in System32 directory
            • Drops file in Program Files directory
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3840
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe"
              5⤵
                PID:812
              • C:\Users\Admin\AppData\Roaming\HcckhmzdA.exe
                "C:\Users\Admin\AppData\Roaming\HcckhmzdA.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:3888
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
                  6⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1440
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
                  6⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1808
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
                  6⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2872
                • C:\Users\Admin\AppData\Local\Temp\HcckhmzdA.exe
                  C:\Users\Admin\AppData\Local\Temp\HcckhmzdA.exe
                  6⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1840
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k networkservice -s TermService
        1⤵
          PID:3628
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k NetworkService -s TermService
          1⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:3124

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              memory/388-646-0x0000000006F62000-0x0000000006F63000-memory.dmp

              memory/388-645-0x0000000006F60000-0x0000000006F61000-memory.dmp

              memory/388-684-0x0000000006F63000-0x0000000006F64000-memory.dmp

              memory/928-127-0x0000000007830000-0x0000000007831000-memory.dmp

              memory/928-126-0x00000000078D0000-0x00000000078D1000-memory.dmp

              memory/928-128-0x0000000007F00000-0x0000000007F01000-memory.dmp

              memory/928-129-0x0000000007F70000-0x0000000007F71000-memory.dmp

              memory/928-124-0x0000000004E40000-0x0000000004E41000-memory.dmp

              memory/928-125-0x0000000004E42000-0x0000000004E43000-memory.dmp

              memory/928-130-0x0000000008150000-0x0000000008151000-memory.dmp

              memory/928-123-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

              memory/928-140-0x0000000009630000-0x0000000009631000-memory.dmp

              memory/928-131-0x0000000008600000-0x0000000008601000-memory.dmp

              memory/928-132-0x0000000008630000-0x0000000008631000-memory.dmp

              memory/928-133-0x00000000088E0000-0x00000000088E1000-memory.dmp

              memory/928-138-0x0000000009910000-0x0000000009911000-memory.dmp

              memory/928-139-0x00000000095B0000-0x00000000095B1000-memory.dmp

              memory/928-149-0x0000000004E43000-0x0000000004E44000-memory.dmp

              memory/928-148-0x000000000AA30000-0x000000000AA31000-memory.dmp

              memory/948-442-0x0000000006972000-0x0000000006973000-memory.dmp

              memory/948-441-0x0000000006970000-0x0000000006971000-memory.dmp

              memory/948-476-0x0000000006973000-0x0000000006974000-memory.dmp

              memory/1200-332-0x00000000073C2000-0x00000000073C3000-memory.dmp

              memory/1200-333-0x0000000008A60000-0x0000000008A61000-memory.dmp

              memory/1200-330-0x00000000073C0000-0x00000000073C1000-memory.dmp

              memory/1200-327-0x0000000008130000-0x0000000008131000-memory.dmp

              memory/1200-357-0x00000000073C3000-0x00000000073C4000-memory.dmp

              memory/1440-793-0x0000000004283000-0x0000000004284000-memory.dmp

              memory/1440-759-0x0000000004280000-0x0000000004281000-memory.dmp

              memory/1440-760-0x0000000004282000-0x0000000004283000-memory.dmp

              memory/1808-857-0x0000000007032000-0x0000000007033000-memory.dmp

              memory/1808-856-0x0000000007030000-0x0000000007031000-memory.dmp

              memory/1808-870-0x0000000007033000-0x0000000007034000-memory.dmp

              memory/1840-967-0x00000000055C0000-0x0000000005ABE000-memory.dmp

              memory/2652-191-0x0000000006C80000-0x0000000006C81000-memory.dmp

              memory/2652-192-0x0000000006C82000-0x0000000006C83000-memory.dmp

              memory/2652-260-0x0000000006C83000-0x0000000006C84000-memory.dmp

              memory/2872-1002-0x00000000044F3000-0x00000000044F4000-memory.dmp

              memory/2872-968-0x00000000044F2000-0x00000000044F3000-memory.dmp

              memory/2872-966-0x00000000044F0000-0x00000000044F1000-memory.dmp

              memory/2884-539-0x0000000007332000-0x0000000007333000-memory.dmp

              memory/2884-572-0x0000000007333000-0x0000000007334000-memory.dmp

              memory/2884-538-0x0000000007330000-0x0000000007331000-memory.dmp

              memory/3460-334-0x0000000000400000-0x000000000055E000-memory.dmp

              memory/3460-338-0x0000000000400000-0x000000000055E000-memory.dmp

              memory/3840-658-0x0000000000400000-0x000000000055E000-memory.dmp

              memory/3840-701-0x0000000004800000-0x000000000493C000-memory.dmp

              memory/3840-1054-0x0000000004940000-0x00000000049C4000-memory.dmp

              memory/3888-726-0x0000000005040000-0x000000000553E000-memory.dmp

              memory/3920-323-0x0000000007F70000-0x0000000007FC8000-memory.dmp

              memory/3920-328-0x0000000007FD0000-0x0000000007FD1000-memory.dmp

              memory/3920-114-0x0000000000850000-0x0000000000851000-memory.dmp

              memory/3920-313-0x0000000006BB0000-0x0000000006BF7000-memory.dmp

              memory/3920-119-0x0000000005140000-0x000000000563E000-memory.dmp

              memory/3920-118-0x00000000050E0000-0x00000000050E1000-memory.dmp

              memory/3920-117-0x0000000005140000-0x0000000005141000-memory.dmp

              memory/3920-116-0x0000000005640000-0x0000000005641000-memory.dmp

              memory/4012-380-0x0000000005040000-0x000000000553E000-memory.dmp