Analysis

  • max time kernel
    146s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    02/02/2021, 18:52

General

  • Target
    8sdsfd2sd.exe
  • Size 651KB
  • Sample210202-ttpscpe5w6
  • SHA256 9c3cfeccfffba1fe5b1b69a5784e3d2832a35aebd0998efb48877ae766708691
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • BazarBackdoor 3 IoCs

    Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 823 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe
    "C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3300
    • C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe
      "C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3940
      • C:\Users\Admin\AppData\Local\Temp\moakbggsmjw.exe
        C:\Users\Admin\AppData\Local\Temp\moakbggsmjw.exe "C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3292
        • C:\Users\Admin\AppData\Local\Temp\moakbggsmjw.exe
          C:\Users\Admin\AppData\Local\Temp\moakbggsmjw.exe "C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:3644
          • C:\Windows\explorer.exe
            explorer.exe "C:\Users\Admin\AppData\Local\Temp\8sdsfd2sd.exe" A
            5⤵
              PID:192
              • C:\Windows\SYSTEM32\cmd.exe
                cmd /c TIMEOUT /T 50 /NOBREAK && move "C:\Users\Admin\AppData\Local\Temp\F379.tmp" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java SDK support.lnk"
                6⤵
                  PID:3196
                  • C:\Windows\system32\timeout.exe
                    TIMEOUT /T 50 /NOBREAK
                    7⤵
                    • Delays execution with timeout.exe
                    PID:3728

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/192-8-0x00007FF6955E0000-0x00007FF6956CA000-memory.dmp

            memory/192-10-0x00007FF6955E0000-0x00007FF6956CA000-memory.dmp