Analysis

  • max time kernel
    152s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • 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 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 5 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 18 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:1120
  • C:\Windows\system32\SystemPropertiesHardware.exe
    C:\Windows\system32\SystemPropertiesHardware.exe
    1⤵
      PID:1676
    • C:\Users\Admin\AppData\Local\HP3\SystemPropertiesHardware.exe
      C:\Users\Admin\AppData\Local\HP3\SystemPropertiesHardware.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:1768
    • C:\Windows\system32\BdeUISrv.exe
      C:\Windows\system32\BdeUISrv.exe
      1⤵
        PID:1656
      • C:\Users\Admin\AppData\Local\SmRCOr5tT\BdeUISrv.exe
        C:\Users\Admin\AppData\Local\SmRCOr5tT\BdeUISrv.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:1016
      • C:\Windows\system32\tabcal.exe
        C:\Windows\system32\tabcal.exe
        1⤵
          PID:1608
        • C:\Users\Admin\AppData\Local\w00RQ\tabcal.exe
          C:\Users\Admin\AppData\Local\w00RQ\tabcal.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:1816

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/1120-62-0x0000000000290000-0x0000000000297000-memory.dmp

              memory/1120-60-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-88-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-97-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-74-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-75-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-76-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-77-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-78-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-79-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-80-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-81-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-82-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-83-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-84-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-85-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-86-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-87-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-72-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-89-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-90-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-91-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-92-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-93-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-94-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-95-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-96-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-73-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-98-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-99-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-100-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-101-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-102-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-103-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-104-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-105-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-106-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-107-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-108-0x0000000003B90000-0x0000000003BA0000-memory.dmp

              memory/1212-109-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-115-0x0000000076FB0000-0x0000000076FB2000-memory.dmp

              memory/1212-63-0x0000000003AB0000-0x0000000003AB1000-memory.dmp

              memory/1212-71-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-70-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-66-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-69-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-68-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-64-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-65-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1212-67-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/1768-121-0x0000000140000000-0x0000000140280000-memory.dmp