Analysis

  • max time kernel
    26s
  • max time network
    94s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/06/2021, 11:30

General

  • Target

    f4d8027192223daf03be06779ccbcd8949e2c48e3805578854878a4127a72c50.dll

  • Size

    170KB

  • MD5

    aa35172af1a4e076186cd9032212b343

  • SHA1

    51a9500f2448d526ffa69561b458a4a18feaf91e

  • SHA256

    f4d8027192223daf03be06779ccbcd8949e2c48e3805578854878a4127a72c50

  • SHA512

    d161eda1de52998eef9b24207166c3011f7204148b47450274daacb27922314e5024e028678549c258f16a4ece14cf0aa87e57e4bfde462a578cf810b206e9e7

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

128.199.200.38:443

192.163.233.216:6601

43.229.206.244:4125

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 14 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\f4d8027192223daf03be06779ccbcd8949e2c48e3805578854878a4127a72c50.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f4d8027192223daf03be06779ccbcd8949e2c48e3805578854878a4127a72c50.dll,#1
      2⤵
        PID:1052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:196

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1052-115-0x00000000738F0000-0x0000000073920000-memory.dmp

            Filesize

            192KB

          • memory/1052-117-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

            Filesize

            24KB