Resubmissions

31/01/2022, 17:50

220131-wepresbbd210

27/01/2022, 13:45

220127-q2ebbadfbk10

Analysis

  • max time kernel
    133s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    31/01/2022, 17:50

General

  • Target
    oxc.exe
  • Size 664KB
  • Sample220131-wepresbbd2
  • SHA256 76389098be8a410aaf6b21297912f6ef745db6e8a2f2aaaddda8685bd91091c3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • warzonerat

C2
  • 152.67.253.163:5300

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • WarzoneRat, AveMaria

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

  • ModiLoader Second Stage 5 IoCs
  • Warzone RAT Payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\oxc.exe
    "C:\Users\Admin\AppData\Local\Temp\oxc.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\SysWOW64\logagent.exe
      C:\Windows\System32\logagent.exe
      2⤵
        PID:1832
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\Contacts\Dkmbwcpqljt.bat" "
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1948
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K C:\Users\Admin\Contacts\DkmbwcpqljO.bat
          3⤵
          • Suspicious behavior: GetForegroundWindowSpam
          PID:1920
          • C:\Windows \System32\ComputerDefaults.exe
            "C:\Windows \System32\ComputerDefaults.exe"
            4⤵
            • Executes dropped EXE
            PID:832
          • C:\Windows \System32\ComputerDefaults.exe
            "C:\Windows \System32\ComputerDefaults.exe"
            4⤵
            • Executes dropped EXE
            PID:560

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1832-71-0x0000000000080000-0x0000000000081000-memory.dmp

          memory/1832-96-0x0000000001E90000-0x0000000001FE4000-memory.dmp

          memory/1832-81-0x00000000726E0000-0x0000000072836000-memory.dmp

          memory/1832-92-0x0000000000080000-0x0000000000081000-memory.dmp

          memory/1832-95-0x00000000726E0000-0x0000000072836000-memory.dmp

          memory/1832-93-0x0000000000110000-0x0000000000111000-memory.dmp

          memory/1832-94-0x00000000001E0000-0x00000000001E1000-memory.dmp

          memory/1920-98-0x0000000002300000-0x0000000002301000-memory.dmp

          memory/1968-68-0x0000000004110000-0x0000000004189000-memory.dmp

          memory/1968-69-0x0000000004110000-0x0000000004189000-memory.dmp

          memory/1968-70-0x0000000004110000-0x0000000004189000-memory.dmp

          memory/1968-54-0x0000000000320000-0x0000000000321000-memory.dmp

          memory/1968-55-0x0000000075431000-0x0000000075433000-memory.dmp

          memory/1968-100-0x0000000004110000-0x0000000004189000-memory.dmp

          memory/1968-99-0x0000000004110000-0x0000000004189000-memory.dmp