Analysis

  • max time kernel
    50s
  • max time network
    60s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-04-2021 16:00

General

  • Target

    473d3acfba96d9579a8eb0ec0067a107a91f20007ed7a33e4c2a73c356c5ed59.dll

  • Size

    158KB

  • MD5

    0dde75bcd2f5c99ac33b6600135f3a3a

  • SHA1

    1a39ce2a7b2f163c8877f811ae3e31d7a8a72b25

  • SHA256

    473d3acfba96d9579a8eb0ec0067a107a91f20007ed7a33e4c2a73c356c5ed59

  • SHA512

    9322fb1ad9c1b3fe3689794f6aec666112240c9ada674af3f0658b1098f11dda4dcc96d9154209ae3ad5a60016aed91fe8e1c4070d22033fe2653b6719114847

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

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\473d3acfba96d9579a8eb0ec0067a107a91f20007ed7a33e4c2a73c356c5ed59.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\473d3acfba96d9579a8eb0ec0067a107a91f20007ed7a33e4c2a73c356c5ed59.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3940-114-0x0000000000000000-mapping.dmp

  • memory/3940-115-0x0000000074090000-0x00000000740BD000-memory.dmp

    Filesize

    180KB

  • memory/3940-117-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB