Analysis

  • max time kernel
    96s
  • max time network
    111s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26-06-2022 05:28

General

  • Target

    dgul98n5x.dll

  • Size

    576KB

  • MD5

    67372146d65045c3c43144fa1eae5ba8

  • SHA1

    d8bff1c5334cf253dfedb9d311b552a04b559159

  • SHA256

    b4c483b8d93b11d242aa0bf91252f3e1f9dacc00d579f653ed7befeeb60c84ae

  • SHA512

    d558ddc4d73c52fa92b584a263aab77e8e5762bd2c504a64b91157ac31985f10c582b08591792b8c0d90722db8f9d7af0bb9b5045877278e225ba3b950740d24

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

77.220.64.131:443

5.196.204.251:5037

192.99.41.136:981

24.229.3.146:4664

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dgul98n5x.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dgul98n5x.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:1944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1944-54-0x0000000000000000-mapping.dmp

  • memory/1944-55-0x00000000757C1000-0x00000000757C3000-memory.dmp

    Filesize

    8KB

  • memory/1944-56-0x0000000000250000-0x00000000002EA000-memory.dmp

    Filesize

    616KB

  • memory/1944-58-0x0000000000250000-0x00000000002EA000-memory.dmp

    Filesize

    616KB

  • memory/1944-57-0x0000000000250000-0x000000000028D000-memory.dmp

    Filesize

    244KB

  • memory/1944-60-0x0000000000250000-0x00000000002EA000-memory.dmp

    Filesize

    616KB

  • memory/1944-61-0x0000000000250000-0x00000000002EA000-memory.dmp

    Filesize

    616KB