Analysis

  • max time kernel
    32s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    03-03-2021 19:04

General

  • Target

    ed6a58716eb98ff093b53de612e456ee7c958201a667528daa43573ae90d2c4a.dll

  • Size

    188KB

  • MD5

    ae05f6f326540917501432ec2895ae9b

  • SHA1

    217aab5e03cf15d531bd87056c9165d098ab8537

  • SHA256

    ed6a58716eb98ff093b53de612e456ee7c958201a667528daa43573ae90d2c4a

  • SHA512

    a9432c4b505ce39ab9183663cd6156715ec7fbfec814b23c6eb02f1e9951ee97a1a83ac8e48ca7cf3895314f3006c0a58318ca96d4847cd6256340235e54f055

Malware Config

Extracted

Family

dridex

Botnet

111

C2

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ed6a58716eb98ff093b53de612e456ee7c958201a667528daa43573ae90d2c4a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:412
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ed6a58716eb98ff093b53de612e456ee7c958201a667528daa43573ae90d2c4a.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:1288

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1288-2-0x0000000000000000-mapping.dmp

  • memory/1288-3-0x00000000741A0000-0x00000000741D1000-memory.dmp

    Filesize

    196KB

  • memory/1288-4-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/1288-5-0x00000000741A0000-0x00000000741BF000-memory.dmp

    Filesize

    124KB