Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    27/10/2021, 08:46

General

  • Target
    6392efa49a39cbd22b553ce57648cac3.dll
  • Size 747KB
  • Sample211027-kpa58sbbc3
  • SHA256 8a2ff676f80e8f9b8150d71344af3c4ad0a0d1f096a1d1f0d34ffff1aa75dad4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 10444

C2
  • 192.46.210.220:443

  • 143.244.140.214:808

  • 45.77.0.96:6891

  • 185.56.219.47:8116

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Blocklisted process makes network request 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6392efa49a39cbd22b553ce57648cac3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6392efa49a39cbd22b553ce57648cac3.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:3508

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3508-116-0x00000000742E0000-0x00000000743AC000-memory.dmp

        memory/3508-118-0x00000000742E0000-0x00000000743AC000-memory.dmp

        memory/3508-117-0x00000000742E0000-0x000000007431D000-memory.dmp

        memory/3508-120-0x00000000027A0000-0x00000000027A1000-memory.dmp

        memory/3508-122-0x00000000027A0000-0x00000000027A1000-memory.dmp

        memory/3508-121-0x00000000027A0000-0x00000000027A1000-memory.dmp

        memory/3508-1450-0x0000000002700000-0x00000000027AE000-memory.dmp