Analysis

  • max time kernel
    78s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    11-05-2022 02:45

General

  • Target

    ad5de4499961e24a515b9fdbe6e51d84535983ba6c68ac5d2ceb4708662b5ee8.exe

  • Size

    518KB

  • MD5

    bcab9a4b6d4d884d692b0f42b9c71f9a

  • SHA1

    156d66188b34e795099a6c5ff6dd56ec25cac3fc

  • SHA256

    ad5de4499961e24a515b9fdbe6e51d84535983ba6c68ac5d2ceb4708662b5ee8

  • SHA512

    8995683354dd4adf765a55a906b837a5c34e8b51cdbfc3981881e19116e1765cbdb75ea623ee822b7d7a18078058e784fd223174bdc28f7ea37675cb589b0537

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    srvc13.turhost.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    italik2015

Signatures

  • Matiex

    Matiex is a keylogger and infostealer first seen in July 2020.

  • Matiex Main Payload 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad5de4499961e24a515b9fdbe6e51d84535983ba6c68ac5d2ceb4708662b5ee8.exe
    "C:\Users\Admin\AppData\Local\Temp\ad5de4499961e24a515b9fdbe6e51d84535983ba6c68ac5d2ceb4708662b5ee8.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:912
    • C:\Users\Admin\AppData\Local\Temp\ad5de4499961e24a515b9fdbe6e51d84535983ba6c68ac5d2ceb4708662b5ee8.exe
      "C:\Users\Admin\AppData\Local\Temp\ad5de4499961e24a515b9fdbe6e51d84535983ba6c68ac5d2ceb4708662b5ee8.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:848
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 848 -s 1776
        3⤵
        • Program crash
        PID:756

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/756-71-0x0000000000000000-mapping.dmp
  • memory/848-64-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/848-59-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/848-63-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/848-62-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/848-60-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/848-65-0x000000000046DE2E-mapping.dmp
  • memory/848-67-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/848-69-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/912-56-0x0000000000490000-0x000000000049A000-memory.dmp
    Filesize

    40KB

  • memory/912-57-0x00000000050D0000-0x000000000513C000-memory.dmp
    Filesize

    432KB

  • memory/912-58-0x0000000005490000-0x0000000005506000-memory.dmp
    Filesize

    472KB

  • memory/912-54-0x0000000001180000-0x0000000001208000-memory.dmp
    Filesize

    544KB

  • memory/912-55-0x0000000076181000-0x0000000076183000-memory.dmp
    Filesize

    8KB