General

  • Target

    3fd303be0f23b8596d510f95e96e02b3.exe

  • Size

    990KB

  • Sample

    210116-vyjbxtw6as

  • MD5

    3fd303be0f23b8596d510f95e96e02b3

  • SHA1

    6cf4524e46a69776155bbae6758204917816162d

  • SHA256

    1847327e13d888bcde4766455cb421f130dc7e16d616bffb7681aa302d3f3800

  • SHA512

    9520405bfb62bdb5f33b6df1842cada77b45e4329fb35d0ba37f71db7947dce9fd1514010d62c821deb27383ef8346929bce75d0a5f7f333610ffc5c400c6493

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    pro40.emailserver.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Vexa@2013

Targets

    • Target

      3fd303be0f23b8596d510f95e96e02b3.exe

    • Size

      990KB

    • MD5

      3fd303be0f23b8596d510f95e96e02b3

    • SHA1

      6cf4524e46a69776155bbae6758204917816162d

    • SHA256

      1847327e13d888bcde4766455cb421f130dc7e16d616bffb7681aa302d3f3800

    • SHA512

      9520405bfb62bdb5f33b6df1842cada77b45e4329fb35d0ba37f71db7947dce9fd1514010d62c821deb27383ef8346929bce75d0a5f7f333610ffc5c400c6493

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Looks up external IP address via web service

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

    • 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

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks