Analysis

  • max time kernel
    154s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    26/11/2021, 09:29

General

  • Target
    31a694cd04044831b2125f6cf16bc9dd342aee9ea89181e1aa302c82951cd956.dll
  • Size 1.3MB
  • Sample211126-lfxhjsbeeq
  • SHA256 31a694cd04044831b2125f6cf16bc9dd342aee9ea89181e1aa302c82951cd956
  • 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 WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\31a694cd04044831b2125f6cf16bc9dd342aee9ea89181e1aa302c82951cd956.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:596
  • C:\Windows\system32\EhStorAuthn.exe
    C:\Windows\system32\EhStorAuthn.exe
    1⤵
      PID:1052
    • C:\Users\Admin\AppData\Local\wlHNdT1Kx\EhStorAuthn.exe
      C:\Users\Admin\AppData\Local\wlHNdT1Kx\EhStorAuthn.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      PID:1308
    • C:\Windows\system32\StikyNot.exe
      C:\Windows\system32\StikyNot.exe
      1⤵
        PID:1220
      • C:\Users\Admin\AppData\Local\5GfuJ\StikyNot.exe
        C:\Users\Admin\AppData\Local\5GfuJ\StikyNot.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        PID:1536
      • C:\Windows\system32\osk.exe
        C:\Windows\system32\osk.exe
        1⤵
          PID:928
        • C:\Users\Admin\AppData\Local\rTTMG\osk.exe
          C:\Users\Admin\AppData\Local\rTTMG\osk.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:1072

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/596-55-0x000007FEF6580000-0x000007FEF66CD000-memory.dmp

              memory/596-59-0x0000000000100000-0x0000000000107000-memory.dmp

              memory/1308-93-0x000007FEF6860000-0x000007FEF69AE000-memory.dmp

              memory/1308-92-0x000007FEFBAB1000-0x000007FEFBAB3000-memory.dmp

              memory/1412-62-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-80-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-64-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-70-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-61-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-69-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-71-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-72-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-73-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-89-0x00000000773E0000-0x00000000773E2000-memory.dmp

              memory/1412-75-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-76-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-81-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-67-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-60-0x00000000025D0000-0x00000000025D1000-memory.dmp

              memory/1412-78-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-79-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-77-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-63-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-74-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-68-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-65-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1412-66-0x0000000140000000-0x000000014014D000-memory.dmp

              memory/1536-103-0x000007FEF6580000-0x000007FEF66CE000-memory.dmp