Analysis

  • max time kernel
    160s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    08/09/2021, 06:26

General

  • Target
    233a32946a5f7c39a375a2da278a2f7b2f0e1ac9f29449183dde119adf6d3ad6.dll
  • Size 1.7MB
  • Sample210908-g69hkshbar
  • SHA256 233a32946a5f7c39a375a2da278a2f7b2f0e1ac9f29449183dde119adf6d3ad6
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Shellcode 1 IoCs

    Detects Dridex Payload shellcode injected in Explorer process.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\233a32946a5f7c39a375a2da278a2f7b2f0e1ac9f29449183dde119adf6d3ad6.dll
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:3556
  • C:\Windows\system32\Narrator.exe
    C:\Windows\system32\Narrator.exe
    1⤵
      PID:3892
    • C:\Users\Admin\AppData\Local\djYtcWZA\Narrator.exe
      C:\Users\Admin\AppData\Local\djYtcWZA\Narrator.exe
      1⤵
      • Executes dropped EXE
      PID:3148
    • C:\Windows\system32\DmNotificationBroker.exe
      C:\Windows\system32\DmNotificationBroker.exe
      1⤵
        PID:2640
      • C:\Users\Admin\AppData\Local\EsaAB\DmNotificationBroker.exe
        C:\Users\Admin\AppData\Local\EsaAB\DmNotificationBroker.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:3888
      • C:\Windows\system32\msdt.exe
        C:\Windows\system32\msdt.exe
        1⤵
          PID:1928
        • C:\Users\Admin\AppData\Local\M2g92CF8d\msdt.exe
          C:\Users\Admin\AppData\Local\M2g92CF8d\msdt.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:1908
        • C:\Windows\system32\LockScreenContentServer.exe
          C:\Windows\system32\LockScreenContentServer.exe
          1⤵
            PID:3972
          • C:\Users\Admin\AppData\Local\HF3OYKA5\LockScreenContentServer.exe
            C:\Users\Admin\AppData\Local\HF3OYKA5\LockScreenContentServer.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Checks whether UAC is enabled
            PID:3932

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                memory/1908-175-0x0000000140000000-0x00000001401BE000-memory.dmp

                memory/3008-132-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-149-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-134-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-135-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-136-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-137-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-138-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-139-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-140-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-141-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-142-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-143-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-144-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-145-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-146-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-148-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-147-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-133-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-150-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-158-0x00007FFF566A4560-0x00007FFF566A5560-memory.dmp

                memory/3008-160-0x00007FFF567E0000-0x00007FFF567E2000-memory.dmp

                memory/3008-122-0x00000000001A0000-0x00000000001A1000-memory.dmp

                memory/3008-130-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-131-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-129-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-123-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-124-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-128-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-126-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-127-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3008-125-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3556-117-0x0000000140000000-0x00000001401BC000-memory.dmp

                memory/3556-121-0x0000000000C20000-0x0000000000C27000-memory.dmp

                memory/3888-166-0x0000000140000000-0x0000000140202000-memory.dmp