Analysis

  • max time kernel
    17s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    10-06-2021 22:46

General

  • Target

    6891a8b37cf49a8043bc1ad9f2ec41f89d5d1564361c8b2f307d83ef01fcd13c.dll

  • Size

    174KB

  • MD5

    3e13ffece405b4f0516b8605ae386d66

  • SHA1

    b10ac007e701454a083d1b16e252b9ebd598f22b

  • SHA256

    6891a8b37cf49a8043bc1ad9f2ec41f89d5d1564361c8b2f307d83ef01fcd13c

  • SHA512

    97f05fac6454b8620940056b4d95824707b9ff1b62eb0ba83c473f23057158e4f3820abbc6185447866a0bee0eab6180f7b8320ba25479dcfde69c461aea3a94

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

178.128.220.64:30333

45.79.91.89:9987

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\6891a8b37cf49a8043bc1ad9f2ec41f89d5d1564361c8b2f307d83ef01fcd13c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6891a8b37cf49a8043bc1ad9f2ec41f89d5d1564361c8b2f307d83ef01fcd13c.dll,#1
      2⤵
        PID:3636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 644
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3980

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3636-114-0x0000000000000000-mapping.dmp

    • memory/3636-115-0x00000000755E0000-0x0000000075610000-memory.dmp

      Filesize

      192KB

    • memory/3636-117-0x0000000000530000-0x000000000067A000-memory.dmp

      Filesize

      1.3MB