Analysis

  • max time kernel
    25s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22-06-2021 09:35

General

  • Target

    257cb85ff403a3996c7dcb3b439947296cd920cbaab776964ba5d4ea14076cdb.dll

  • Size

    162KB

  • MD5

    33ea030806cf7a547ecc48f8d74424bc

  • SHA1

    555fa8a34bb89131bdf3a08b55a6c399ed50b323

  • SHA256

    257cb85ff403a3996c7dcb3b439947296cd920cbaab776964ba5d4ea14076cdb

  • SHA512

    7f66dcb12b86f0aad4e247f5a72b62e36482f89dcb45236f8de4a725be1790da928b4ef87471261afafe6672bd9ea21efc7b1a2682fce5f53353a067bf88e291

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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\257cb85ff403a3996c7dcb3b439947296cd920cbaab776964ba5d4ea14076cdb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\257cb85ff403a3996c7dcb3b439947296cd920cbaab776964ba5d4ea14076cdb.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1300-115-0x0000000074440000-0x000000007446E000-memory.dmp

    Filesize

    184KB

  • memory/1300-117-0x0000000002780000-0x0000000002786000-memory.dmp

    Filesize

    24KB