Overview

overview

10

Static

static

Inv_121314_42664.xlsm

windows7_x64

10

Inv_121314_42664.xlsm

windows10_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    02/11/2020, 13:01

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General

  • Target
    Inv_121314_42664.xlsm
  • Size 26KB
  • Sample201102-1ldr4jfsyn
  • SHA256 2ec35da14989692e77df25d56c7b1d43a3e93a72ec2fc7cce67b2fa448744752
  • MD5 SHA1 SHA512
Score
10/10
dridex10444botnetcryptoneloaderpacker

Malware Config

Extracted

Family

  • dridex

Botnet

  • 10444

C2

  • 195.154.237.245:443

  • 46.105.131.73:8172

  • 91.238.160.158:18443

  • 213.183.128.99:3786

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 2 IoCs

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

  • CryptOne packer 4 IoCs

    Detects CryptOne packer defined in NCC blogpost.

    cryptonepacker
  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

    botnetloader
  • Loads dropped DLL 2 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 12 IoCs
  • Suspicious use of WriteProcessMemory 10 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\Inv_121314_42664.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:648
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\ykgippie._BQ
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2100
      • C:\Windows\SysWOW64\regsvr32.exe
        -s C:\Users\Admin\AppData\Local\Temp\ykgippie._BQ
        3⤵
        • Loads dropped DLL
        PID:3856
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\wtmxhg._OH
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3860
      • C:\Windows\SysWOW64\regsvr32.exe
        -s C:\Users\Admin\AppData\Local\Temp\wtmxhg._OH
        3⤵
        • Loads dropped DLL
        PID:2196

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/648-0-0x00007FF91E870000-0x00007FF91EEA7000-memory.dmp
        Download

        memory/2196-13-0x0000000003470000-0x00000000034AD000-memory.dmp
        Download

        memory/3856-12-0x00000000033A0000-0x00000000033DD000-memory.dmp
        Download