Analysis

  • max time kernel
    153s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    29/09/2021, 07:45

General

  • Target
    7630eb99cd2f4a7013bb742dc2b4619ec632924cd3d1a2bdc078b946b7c3efa7.dll
  • Size 1.1MB
  • Sample210929-jldxaaecdk
  • SHA256 7630eb99cd2f4a7013bb742dc2b4619ec632924cd3d1a2bdc078b946b7c3efa7
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Dridex

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

  • Dridex Payload 2 IoCs

    Detects Dridex x64 core DLL in memory.

  • 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
  • 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\7630eb99cd2f4a7013bb742dc2b4619ec632924cd3d1a2bdc078b946b7c3efa7.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:3704
  • C:\Windows\system32\irftp.exe
    C:\Windows\system32\irftp.exe
    1⤵
      PID:1628
    • C:\Users\Admin\AppData\Local\ftNW6s\irftp.exe
      C:\Users\Admin\AppData\Local\ftNW6s\irftp.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:1412
    • C:\Windows\system32\irftp.exe
      C:\Windows\system32\irftp.exe
      1⤵
        PID:4400
      • C:\Users\Admin\AppData\Local\Pw55Q1aZP\irftp.exe
        C:\Users\Admin\AppData\Local\Pw55Q1aZP\irftp.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:4408
      • C:\Windows\system32\dialer.exe
        C:\Windows\system32\dialer.exe
        1⤵
          PID:4532
        • C:\Users\Admin\AppData\Local\fjZ\dialer.exe
          C:\Users\Admin\AppData\Local\fjZ\dialer.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:4512

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/1412-165-0x0000000140000000-0x0000000140118000-memory.dmp

              memory/2888-141-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-147-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-132-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-133-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-134-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-135-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-136-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-137-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-138-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-139-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-140-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-121-0x0000000001010000-0x0000000001011000-memory.dmp

              memory/2888-142-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-143-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-144-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-145-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-146-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-131-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-148-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-149-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-150-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-159-0x00007FFBEBDE4320-0x00007FFBEBDE5320-memory.dmp

              memory/2888-160-0x00007FFBEBDB4320-0x00007FFBEBDB5320-memory.dmp

              memory/2888-130-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-129-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-128-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-127-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-126-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-123-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-125-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-124-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/2888-122-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/3704-115-0x0000000140000000-0x0000000140116000-memory.dmp

              memory/3704-120-0x000001735EE30000-0x000001735EE37000-memory.dmp