Analysis

  • max time kernel
    23s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/06/2021, 11:05

General

  • Target

    a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26.dll

  • Size

    172KB

  • MD5

    21dc239b4938ddc0b7ceb7b8adad6a19

  • SHA1

    02f962fa72d54ad8546603b9551f08aae9567c0b

  • SHA256

    a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26

  • SHA512

    97ef94b8db541bd4e5e7dbea1bd37d40f00ce0527ad2ae609b195753f71dd7e74fc71c46c71f96815817196711d650d376db7a0442d3cc559edaa4b8b688ef77

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\a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26.dll,#1
      2⤵
        PID:4752
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4192

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/4752-115-0x0000000073C30000-0x0000000073C60000-memory.dmp

            Filesize

            192KB

          • memory/4752-117-0x0000000000FC0000-0x000000000110A000-memory.dmp

            Filesize

            1.3MB