Analysis

  • max time kernel
    114s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-04-2021 18:10

General

  • Target

    71d617b21b5bf51d43aee0e4d17b6a1abb6429cf66e2df2b50a686b358624879.dll

  • Size

    154KB

  • MD5

    e6f4bb344ec3bc040366331b1287175e

  • SHA1

    1421f771ee0f5606a4439ec67f9aec98cdf8d61a

  • SHA256

    71d617b21b5bf51d43aee0e4d17b6a1abb6429cf66e2df2b50a686b358624879

  • SHA512

    a10db611f1cd0c0d3e75ff1e40b68740c7f06489290a2cb2463177b1e81365e7f2e3fad1eb157fb7776baddacc9ddaf8ec22035b951f3d60eb8523584aba84c8

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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.

  • 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\71d617b21b5bf51d43aee0e4d17b6a1abb6429cf66e2df2b50a686b358624879.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\71d617b21b5bf51d43aee0e4d17b6a1abb6429cf66e2df2b50a686b358624879.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3196

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3196-114-0x0000000000000000-mapping.dmp
  • memory/3196-115-0x00000000739D0000-0x00000000739FD000-memory.dmp
    Filesize

    180KB

  • memory/3196-117-0x0000000000B60000-0x0000000000B66000-memory.dmp
    Filesize

    24KB