Analysis

  • max time kernel
    27s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/06/2021, 15:42

General

  • Target

    4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5.dll

  • Size

    170KB

  • MD5

    0608c62c5ef39ac5b8337a32b93e327f

  • SHA1

    8cada8850d3e2676763ae0b55fc2482f2ecc081d

  • SHA256

    4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5

  • SHA512

    cca19759f4a8842631cdd96ceb29bc2963a4e4fe2e8cda9c8f1c1ffa9c1d8e52a9252ae720602ad73163181b52c1262845bbef838b8ed3cbcbbe19880fe5c9e7

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\4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5.dll,#1
      2⤵
        PID:1124
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1124 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2316

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1124-115-0x0000000074310000-0x0000000074340000-memory.dmp

            Filesize

            192KB

          • memory/1124-117-0x0000000003430000-0x0000000003436000-memory.dmp

            Filesize

            24KB