Analysis

  • max time kernel
    151s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    21/09/2021, 08:29

General

  • Target
    5fefa719c11c0ad8472f9c610aaa9cd4a487077ed06aca94fe71dd20cd486394.dll
  • Size 2.5MB
  • Sample210921-kdk63abebr
  • SHA256 5fefa719c11c0ad8472f9c610aaa9cd4a487077ed06aca94fe71dd20cd486394
  • 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 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\5fefa719c11c0ad8472f9c610aaa9cd4a487077ed06aca94fe71dd20cd486394.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:3608
  • C:\Windows\system32\bcastdvr.exe
    C:\Windows\system32\bcastdvr.exe
    1⤵
      PID:4548
    • C:\Users\Admin\AppData\Local\RUyppG\bcastdvr.exe
      C:\Users\Admin\AppData\Local\RUyppG\bcastdvr.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:4528
    • C:\Windows\system32\DmNotificationBroker.exe
      C:\Windows\system32\DmNotificationBroker.exe
      1⤵
        PID:4488
      • C:\Users\Admin\AppData\Local\mgB\DmNotificationBroker.exe
        C:\Users\Admin\AppData\Local\mgB\DmNotificationBroker.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:4472
      • C:\Windows\system32\mblctr.exe
        C:\Windows\system32\mblctr.exe
        1⤵
          PID:2284
        • C:\Users\Admin\AppData\Local\INRd1\mblctr.exe
          C:\Users\Admin\AppData\Local\INRd1\mblctr.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:4664

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/3048-149-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-151-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-130-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-131-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-124-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-132-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-133-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-134-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-135-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-136-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-137-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-138-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-139-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-140-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-141-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-142-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-143-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-144-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-145-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-146-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-147-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-148-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-129-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-150-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-152-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-153-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-154-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-127-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-155-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-156-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-157-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-158-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-159-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-160-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-161-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-162-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-163-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-164-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-165-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-173-0x00007FFC16244560-0x00007FFC16245560-memory.dmp

              memory/3048-175-0x00007FFC16190000-0x00007FFC161A0000-memory.dmp

              memory/3048-120-0x0000000000440000-0x0000000000441000-memory.dmp

              memory/3048-121-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-128-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-122-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-123-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-126-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3048-125-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3608-119-0x0000015E00410000-0x0000015E00417000-memory.dmp

              memory/3608-115-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/4472-190-0x0000000140000000-0x00000001402C5000-memory.dmp

              memory/4528-181-0x0000000140000000-0x0000000140280000-memory.dmp