Analysis

  • max time kernel
    12s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    19-11-2020 18:05

General

  • Target

    ef5ai1p.dll

  • Size

    539KB

  • MD5

    1ba0b20a2d03d8af03a7faa42b06417f

  • SHA1

    4c528bb2afd93d8cb1199d05dc33d77e08f0ee88

  • SHA256

    f5951b345050e10fa0d3b70b42e6b56d5a720a7a67c381345e33c145e2ba2452

  • SHA512

    5447e2424e0beeace8c1d3de285fcd841b184e9ed1b3035334fd3005399aa0947b5688a22754b9114ff3f9444906481a519477fbd9cfdb17f23136ad14f6eef3

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef5ai1p.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef5ai1p.dll,#1
      2⤵
        PID:4828

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4828-0-0x0000000000000000-mapping.dmp
    • memory/4828-1-0x0000000000AC0000-0x0000000000AFD000-memory.dmp
      Filesize

      244KB