Overview

overview

10

Static

static

b42d6d1177...1e.exe

windows7_x64

10

b42d6d1177...1e.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    139s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    19-03-2022 23:50

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General

  • Target

    b42d6d1177db8c8864097d7b7fdf31490d60c5d29b0e6d06937188a1360cb21e.exe

  • Size

    2.4MB

  • MD5

    00b6ffe300f9e53ecf04c746cc21009c

  • SHA1

    533949203f4a9376defe1d7b1fffbaf9e04fcca8

  • SHA256

    b42d6d1177db8c8864097d7b7fdf31490d60c5d29b0e6d06937188a1360cb21e

  • SHA512

    b599f10372d67fd9b84c47dd13053937384d834dbf9ed5fe0fb60e180c42b5dab61ef7768fc9e6380ae9ddea7c40fb22d18ae0a75bd9afe474323bc9c140eca2

Score
10/10
echelonbootkitcollectiondiscoveryevasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

    stealerspywareechelon
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 15 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b42d6d1177db8c8864097d7b7fdf31490d60c5d29b0e6d06937188a1360cb21e.exe
    "C:\Users\Admin\AppData\Local\Temp\b42d6d1177db8c8864097d7b7fdf31490d60c5d29b0e6d06937188a1360cb21e.exe"
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Accesses Microsoft Outlook profiles
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:1320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 2148
      2⤵
      • Program crash
      PID:3252
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1320 -ip 1320
    1⤵
      PID:4708

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Bootkit

    1
    T1067

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/1320-130-0x0000000077610000-0x00000000777B3000-memory.dmp
      Filesize

      1.6MB

      Download
    • memory/1320-131-0x0000000000DB0000-0x0000000001418000-memory.dmp
      Filesize

      6.4MB

      Download
    • memory/1320-132-0x0000000000DB0000-0x0000000001418000-memory.dmp
      Filesize

      6.4MB

      Download
    • memory/1320-133-0x0000000074480000-0x0000000074C30000-memory.dmp
      Filesize

      7.7MB

      Download
    • memory/1320-134-0x00000000052D0000-0x0000000005336000-memory.dmp
      Filesize

      408KB

      Download
    • memory/1320-135-0x0000000005270000-0x0000000005271000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1320-136-0x0000000006030000-0x00000000065D4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/1320-137-0x0000000005273000-0x0000000005275000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1320-138-0x00000000066E0000-0x000000000677C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/1320-139-0x0000000005275000-0x0000000005276000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1320-140-0x0000000006F00000-0x0000000006F92000-memory.dmp
      Filesize

      584KB

      Download
    • memory/1320-141-0x0000000005276000-0x0000000005277000-memory.dmp
      Filesize

      4KB

      Download