e81894525ac86f809f18bde96a5b1055a90d481809c35c9b5b59329d6e4c9b4e

General
Target

e81894525ac86f809f18bde96a5b1055a90d481809c35c9b5b59329d6e4c9b4e.dll

Filesize

162KB

Completed

04-05-2021 15:32

Score
10 /10
MD5

9417617decdf6d237ba024899078f201

SHA1

f0fc469a7701631cc95ebce38a44a3ad5f518305

SHA256

e81894525ac86f809f18bde96a5b1055a90d481809c35c9b5b59329d6e4c9b4e

Malware Config

Extracted

Family dridex
Botnet 40112
C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

rc4.plain
rc4.plain
Signatures 4

Filter: none

Discovery
  • Dridex

    Description

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

  • Dridex Loader

    Description

    Detects Dridex both x86 and x64 loader in memory.

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/1912-115-0x0000000073530000-0x000000007355E000-memory.dmpdridex_ldr
  • Checks whether UAC is enabled
    rundll32.exe

    TTPs

    System Information Discovery

    Reported IOCs

    descriptioniocprocess
    Key value queried\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUArundll32.exe
  • Suspicious use of WriteProcessMemory
    rundll32.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 3628 wrote to memory of 19123628rundll32.exerundll32.exe
    PID 3628 wrote to memory of 19123628rundll32.exerundll32.exe
    PID 3628 wrote to memory of 19123628rundll32.exerundll32.exe
Processes 2
  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\e81894525ac86f809f18bde96a5b1055a90d481809c35c9b5b59329d6e4c9b4e.dll,#1
    Suspicious use of WriteProcessMemory
    PID:3628
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\e81894525ac86f809f18bde96a5b1055a90d481809c35c9b5b59329d6e4c9b4e.dll,#1
      Checks whether UAC is enabled
      PID:1912
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
          Execution
            Exfiltration
              Impact
                Initial Access
                  Lateral Movement
                    Persistence
                      Privilege Escalation
                        Replay Monitor
                        00:00 00:00
                        Downloads
                        • memory/1912-114-0x0000000000000000-mapping.dmp

                        • memory/1912-115-0x0000000073530000-0x000000007355E000-memory.dmp

                        • memory/1912-117-0x0000000004160000-0x0000000004166000-memory.dmp