Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    31/03/2021, 14:34

General

  • Target
    2e6a9b2c68fabcf47a2aee3ddd9fc8ca801202b87c4d5059b52de6e89c3b334f.dll
  • Size 377KB
  • Sample210331-27t69kmp7a
  • SHA256 2e6a9b2c68fabcf47a2aee3ddd9fc8ca801202b87c4d5059b52de6e89c3b334f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 10444

C2
  • 131.100.24.215:443

  • 210.65.244.174:6601

  • 195.201.199.53:2303

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • 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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2e6a9b2c68fabcf47a2aee3ddd9fc8ca801202b87c4d5059b52de6e89c3b334f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2e6a9b2c68fabcf47a2aee3ddd9fc8ca801202b87c4d5059b52de6e89c3b334f.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:1408

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/656-7-0x000007FEF7810000-0x000007FEF7A8A000-memory.dmp

        memory/1408-3-0x00000000760B1000-0x00000000760B3000-memory.dmp

        memory/1408-4-0x0000000074910000-0x000000007494D000-memory.dmp

        memory/1408-5-0x0000000074910000-0x000000007494D000-memory.dmp

        memory/1408-6-0x0000000000180000-0x0000000000181000-memory.dmp