Analysis

  • max time kernel
    160s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-en
  • submitted
    16/09/2021, 08:23

General

  • Target
    8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500.dll
  • Size 2.3MB
  • Sample210916-j98fssfddk
  • SHA256 8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500
  • 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 7 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 FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 27 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:1052
  • C:\Windows\system32\DisplaySwitch.exe
    C:\Windows\system32\DisplaySwitch.exe
    1⤵
      PID:1544
    • C:\Users\Admin\AppData\Local\16Y7\DisplaySwitch.exe
      C:\Users\Admin\AppData\Local\16Y7\DisplaySwitch.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:1636
    • C:\Windows\system32\mmc.exe
      C:\Windows\system32\mmc.exe
      1⤵
        PID:1392
      • C:\Users\Admin\AppData\Local\Jtyd2o1X\mmc.exe
        C:\Users\Admin\AppData\Local\Jtyd2o1X\mmc.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:1320
      • C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe
        C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe
        1⤵
          PID:1696
        • C:\Users\Admin\AppData\Local\rFKMj\SystemPropertiesDataExecutionPrevention.exe
          C:\Users\Admin\AppData\Local\rFKMj\SystemPropertiesDataExecutionPrevention.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:1900

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/1052-53-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1052-55-0x0000000000190000-0x0000000000197000-memory.dmp

              memory/1208-80-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-72-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-83-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-85-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-84-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-82-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-81-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-94-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-93-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-92-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-99-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-98-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-97-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-96-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-95-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-91-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-90-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-89-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-88-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-87-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-86-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-79-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-76-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-74-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-73-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-77-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-71-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-69-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-68-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-67-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-66-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-105-0x0000000077960000-0x0000000077962000-memory.dmp

              memory/1208-78-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-75-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-56-0x0000000002B10000-0x0000000002B11000-memory.dmp

              memory/1208-57-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-70-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-65-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-58-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-60-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-59-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-61-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-62-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-63-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1208-64-0x0000000140000000-0x000000014024C000-memory.dmp

              memory/1636-112-0x0000000140000000-0x000000014024D000-memory.dmp

              memory/1636-109-0x000007FEFC1D1000-0x000007FEFC1D3000-memory.dmp