Overview

overview

10

Static

static

8

1-Total Ne...0.xlsm

windows7_x64

1

1-Total Ne...0.xlsm

windows10_x64

10

Analysis

  • max time kernel
    139s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    15/12/2020, 06:13

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General

  • Target
    1-Total New Invoices Monday Dec 14 2020.xlsm
  • Size 57KB
  • Sample201215-cd8jabkl2s
  • SHA256 88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d
  • MD5 SHA1 SHA512
Score
10/10
dridex10444botnetloader

Malware Config

Extracted

Family

  • dridex

Botnet

  • 10444

C2

  • 77.220.64.37:443

  • 51.15.176.55:3389

  • 85.25.144.36:4643

  • 139.162.53.147:4443

rc4.plain
rc4.plain

Signatures

  • Dridex

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

    botnetdridex
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

    botnetloader
  • Loads dropped DLL 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\1-Total New Invoices Monday Dec 14 2020.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\cgflvqwv.dll.
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3972
      • C:\Windows\SysWOW64\regsvr32.exe
        -s C:\Users\Admin\AppData\Local\Temp\cgflvqwv.dll.
        3⤵
        • Loads dropped DLL
        PID:3840

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2260-2-0x00007FFE2FB40000-0x00007FFE30177000-memory.dmp
        Download

        memory/2260-5-0x000002DBE1CA1000-0x000002DBE1CAA000-memory.dmp
        Download

        memory/2260-6-0x000002DBE1CA1000-0x000002DBE1CAA000-memory.dmp
        Download

        memory/2260-7-0x000002DBE0C97000-0x000002DBE0CA0000-memory.dmp
        Download

        memory/2260-8-0x000002DBE1CA1000-0x000002DBE1CAA000-memory.dmp
        Download

        memory/3840-13-0x0000000073B80000-0x0000000073BBD000-memory.dmp
        Download