Analysis

  • max time kernel
    25s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/06/2021, 11:15

General

  • Target

    4d404a3ccf66caa47441ad80eefe3ca5b14fa82dd41271e9ce708b20d6208e47.dll

  • Size

    172KB

  • MD5

    41d6281c20127f93b8b0c12c60cd1316

  • SHA1

    b36e7dd693f16170d55a62f5419755d7a1ea5f6d

  • SHA256

    4d404a3ccf66caa47441ad80eefe3ca5b14fa82dd41271e9ce708b20d6208e47

  • SHA512

    87b75079de8071a83c9e3b69533926b8d9db5ce7d9203c78d059b6407733593b02db29658cf2bf4d83786b19c69701526ebe60c31034c6faefcef4e1d24b9b9c

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

210.65.244.187:443

162.241.41.92:2303

46.231.204.10:8172

185.183.159.100:4125

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d404a3ccf66caa47441ad80eefe3ca5b14fa82dd41271e9ce708b20d6208e47.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d404a3ccf66caa47441ad80eefe3ca5b14fa82dd41271e9ce708b20d6208e47.dll,#1
      2⤵
        PID:1548
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2652

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • memory/1548-115-0x0000000073FB0000-0x0000000073FE0000-memory.dmp

            Filesize

            192KB

          • memory/1548-117-0x0000000002DF0000-0x0000000002DF6000-memory.dmp

            Filesize

            24KB