Analysis

  • max time kernel
    128s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    06/12/2021, 15:01

General

  • Target
    f83c34390634bf9e3c7a78193d91661b.dll
  • Size 476KB
  • Sample211206-sdwlssechm
  • SHA256 0c64aaa054e7cbc3010109061653c6dad9bb71db9531d7cef4d202cb69990937
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 10444

C2
  • 23.246.204.126:443

  • 151.106.39.36:8116

  • 103.124.144.123:6891

  • 172.105.78.60:4664

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.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f83c34390634bf9e3c7a78193d91661b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:592
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f83c34390634bf9e3c7a78193d91661b.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:692
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 692 -s 344
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1236

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/692-56-0x0000000075981000-0x0000000075983000-memory.dmp

        memory/692-57-0x00000000745D0000-0x0000000074649000-memory.dmp

        memory/692-61-0x0000000000110000-0x0000000000116000-memory.dmp

        memory/1236-62-0x0000000000350000-0x0000000000351000-memory.dmp