General

  • Target

    4ac227785c3f1cdd4b05a9d2ebb94e88a4af65303833c4dbfc35113dc21c97aa.exe

  • Size

    669KB

  • Sample

    240328-cp76zada4x

  • MD5

    947ec2135e371d80d87ca34a867efe29

  • SHA1

    6c58ddffec036207692a8c65ebc844d3ab3aafcf

  • SHA256

    4ac227785c3f1cdd4b05a9d2ebb94e88a4af65303833c4dbfc35113dc21c97aa

  • SHA512

    c7f556fd7ca29906873414d28eb0e9217a767544a861deb971b5ab5b3fa7b4dc8c1a37224e383e324389c0cffd34a5a5fc362fcd570e5fa18eb47b9f1f6dd43a

  • SSDEEP

    12288:RkXayww0J7RG6YnakFrTtJ7IomjXXIR+w8/6ODi6dU3bAil+8I4:WajBtN+aOrTtJ7IZ4EwQh1d9iot

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mbarieservicesltd.com
  • Port:
    587
  • Username:
    saless@mbarieservicesltd.com
  • Password:
    *o9H+18Q4%;M
  • Email To:
    iinfo@mbarieservicesltd.com

Targets

    • Target

      4ac227785c3f1cdd4b05a9d2ebb94e88a4af65303833c4dbfc35113dc21c97aa.exe

    • Size

      669KB

    • MD5

      947ec2135e371d80d87ca34a867efe29

    • SHA1

      6c58ddffec036207692a8c65ebc844d3ab3aafcf

    • SHA256

      4ac227785c3f1cdd4b05a9d2ebb94e88a4af65303833c4dbfc35113dc21c97aa

    • SHA512

      c7f556fd7ca29906873414d28eb0e9217a767544a861deb971b5ab5b3fa7b4dc8c1a37224e383e324389c0cffd34a5a5fc362fcd570e5fa18eb47b9f1f6dd43a

    • SSDEEP

      12288:RkXayww0J7RG6YnakFrTtJ7IomjXXIR+w8/6ODi6dU3bAil+8I4:WajBtN+aOrTtJ7IZ4EwQh1d9iot

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects executables packed with SmartAssembly

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks