General

  • Target

    292aee5526ba2e4858d7ea9178878387.exe

  • Size

    832KB

  • Sample

    211017-x7zyjadfdj

  • MD5

    292aee5526ba2e4858d7ea9178878387

  • SHA1

    305c62f106a105f086b3a9ad40a2e706d843a148

  • SHA256

    cb3a930b00d73a9d5a0313b549a93636eecaf9a4c370e2e9d9ca1b1eaf302eff

  • SHA512

    b1c3adc4b4960b0d77c596a1d800f027e49d4c1b2b14ba4a293741fd6118e10ead8ca5890e1c296dd711434bc029fa16f26768a0888edee15153a68ad6daad2b

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thts.vn
  • Port:
    25
  • Username:
    [email protected]
  • Password:
    123luongngan1989

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thts.vn
  • Port:
    25
  • Username:
    [email protected]
  • Password:
    123luongngan1989

Targets

    • Target

      292aee5526ba2e4858d7ea9178878387.exe

    • Size

      832KB

    • MD5

      292aee5526ba2e4858d7ea9178878387

    • SHA1

      305c62f106a105f086b3a9ad40a2e706d843a148

    • SHA256

      cb3a930b00d73a9d5a0313b549a93636eecaf9a4c370e2e9d9ca1b1eaf302eff

    • SHA512

      b1c3adc4b4960b0d77c596a1d800f027e49d4c1b2b14ba4a293741fd6118e10ead8ca5890e1c296dd711434bc029fa16f26768a0888edee15153a68ad6daad2b

    • Matiex

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

    • Matiex Main Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

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

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks