Analysis

  • max time kernel
    154s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    16/09/2021, 08:17

General

  • Target
    fb42214dc2b428947b6d8a0f25ae62f644f21f239c2d48037eb0c57e7101eef9.dll
  • Size 2.7MB
  • Sample210916-j6qftafdam
  • SHA256 fb42214dc2b428947b6d8a0f25ae62f644f21f239c2d48037eb0c57e7101eef9
  • 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 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 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 FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb42214dc2b428947b6d8a0f25ae62f644f21f239c2d48037eb0c57e7101eef9.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:4652
  • C:\Windows\system32\RDVGHelper.exe
    C:\Windows\system32\RDVGHelper.exe
    1⤵
      PID:3456
    • C:\Users\Admin\AppData\Local\G5zHsOc\RDVGHelper.exe
      C:\Users\Admin\AppData\Local\G5zHsOc\RDVGHelper.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:3744
    • C:\Windows\system32\SppExtComObj.Exe
      C:\Windows\system32\SppExtComObj.Exe
      1⤵
        PID:3288
      • C:\Users\Admin\AppData\Local\BRd32\SppExtComObj.Exe
        C:\Users\Admin\AppData\Local\BRd32\SppExtComObj.Exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:3724
      • C:\Windows\system32\AtBroker.exe
        C:\Windows\system32\AtBroker.exe
        1⤵
          PID:4156
        • C:\Users\Admin\AppData\Local\s1EXK0x\AtBroker.exe
          C:\Users\Admin\AppData\Local\s1EXK0x\AtBroker.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:4160

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/3040-155-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-159-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-127-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-130-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-131-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-129-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-132-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-133-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-134-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-136-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-135-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-137-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-138-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-139-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-140-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-141-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-142-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-143-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-144-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-145-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-146-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-147-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-148-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-149-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-150-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-151-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-152-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-153-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-154-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-126-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-156-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-157-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-158-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-128-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-160-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-161-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-162-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-163-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-164-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-165-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-166-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-167-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-168-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-169-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-170-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-171-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-172-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-173-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-174-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-175-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-176-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-177-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-178-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-179-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-180-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-181-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-197-0x00007FFBA1E20000-0x00007FFBA1E22000-memory.dmp

              memory/3040-120-0x0000000003200000-0x0000000003201000-memory.dmp

              memory/3040-125-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-124-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-123-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-121-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/3040-122-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/4652-115-0x0000000140000000-0x00000001402B3000-memory.dmp

              memory/4652-119-0x0000029C32020000-0x0000029C32027000-memory.dmp