Analysis

  • max time kernel
    19s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    29-06-2021 09:38

General

  • Target

    c2dcbcca0b41f85d0f32682f99eb0db7c9e40609f137ea4e82e32d26c5476c64.dll

  • Size

    158KB

  • MD5

    5d5b238a92b284cff34286ac54037bfd

  • SHA1

    91becc459243ca65c287e3b319cd71833d8b39ae

  • SHA256

    c2dcbcca0b41f85d0f32682f99eb0db7c9e40609f137ea4e82e32d26c5476c64

  • SHA512

    6c4d8d3c805215efebf8119246a9c2f0cae19849797ba57b1ddc3ed5a8632613bf99592b1a2b68f588d35c26fc6b5f244b7bf48e9a6d5648b6111fecde7b7f7c

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\c2dcbcca0b41f85d0f32682f99eb0db7c9e40609f137ea4e82e32d26c5476c64.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c2dcbcca0b41f85d0f32682f99eb0db7c9e40609f137ea4e82e32d26c5476c64.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:2236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2236-114-0x0000000000000000-mapping.dmp

  • memory/2236-115-0x0000000073EE0000-0x0000000073F0D000-memory.dmp

    Filesize

    180KB

  • memory/2236-117-0x00000000009A0000-0x00000000009A6000-memory.dmp

    Filesize

    24KB