Analysis

  • max time kernel
    119s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20/12/2021, 23:19

General

  • Target
    SecuriteInfo.com.W32.AIDetect.malware1.27830.19414.dll
  • Size 468KB
  • Sample211220-3avkfacad3
  • SHA256 bc38064e8938cff283b33b23ae76faa2dc1a08d5866981c7324183b5922d7434
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 22206

C2
  • 120.50.40.185:443

  • 139.59.14.223:8172

  • 121.40.104.209:6602

  • 139.162.113.169:593

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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.27830.19414.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.27830.19414.dll,#1
      2⤵
        PID:3704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 648
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1300

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3704-116-0x0000000073560000-0x00000000735D6000-memory.dmp

          memory/3704-118-0x0000000000AF0000-0x0000000000AF6000-memory.dmp