Overview

overview

10

Static

static

Inv_121314_42664.xlsm

windows7_x64

10

Inv_121314_42664.xlsm

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • 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
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
    adwarespyware
  • Modifies registry class 280 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Inv_121314_42664.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\ymjmxwop._TO
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      PID:1020
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\hhjdagqp._AU
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      PID:1720

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1020-5-0x00000000008B0000-0x00000000008ED000-memory.dmp
        Download

        memory/1540-1-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp
        Download

        memory/1720-9-0x0000000000690000-0x00000000006CD000-memory.dmp
        Download

        memory/1892-0-0x00000000057D0000-0x00000000057D2000-memory.dmp
        Download