Overview

overview

10

Static

static

ff21b8eb64...85.dll

windows7_x64

10

ff21b8eb64...85.dll

windows10_x64

10

Analysis

  • max time kernel
    19s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    25/08/2021, 21:19

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General

  • Target
    ff21b8eb64d474799c99cd9e4aeebe85.dll
  • Size 188KB
  • Sample210825-e3mmhcptqj
  • SHA256 c0a50610efbc33fb1eabf22c8117a9ac241d70791dfd8b148f9e4af8ba849c6f
  • MD5 SHA1 SHA512
Score
10/10
dridex22201botnetloader

Malware Config

Extracted

Family

  • dridex

Botnet

  • 22201

C2

  • 103.82.248.59:443

  • 54.39.98.141:6602

  • 103.109.247.8:10443

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

    botnetdridex
  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

    botnetloader
  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff21b8eb64d474799c99cd9e4aeebe85.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3260
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff21b8eb64d474799c99cd9e4aeebe85.dll,#1
      2⤵
        PID:3988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 724
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1432
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 732
          3⤵
          • Suspicious use of NtCreateProcessExOtherParentProcess
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1864

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/3988-115-0x0000000073860000-0x0000000073890000-memory.dmp
          Download

          memory/3988-117-0x0000000000F80000-0x0000000000F86000-memory.dmp
          Download