General

  • Target

    Sample Qoutation List.exe

  • Size

    633KB

  • Sample

    210408-9lx1jlaz36

  • MD5

    1218f28671801dbd95ee8b75e2df092b

  • SHA1

    4a8bfff915795b37b50b550ddddfab8b68cf28c5

  • SHA256

    b544726a7092ac0a8c503181644850292e01b7245808815d800f85e008c533d5

  • SHA512

    e4ef46505fab8215e36c6a88280ed3672f6089f98fcdee079826acf94336437ea87aa7d2c5b7e2c47e9116d983e49da7d33084066e36e2284c89dd1580446e90

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.thinnartede.com
  • Port:
    587
  • Username:
    rakris@thinnartede.com
  • Password:
    QGzh%!$2

Targets

    • Target

      Sample Qoutation List.exe

    • Size

      633KB

    • MD5

      1218f28671801dbd95ee8b75e2df092b

    • SHA1

      4a8bfff915795b37b50b550ddddfab8b68cf28c5

    • SHA256

      b544726a7092ac0a8c503181644850292e01b7245808815d800f85e008c533d5

    • SHA512

      e4ef46505fab8215e36c6a88280ed3672f6089f98fcdee079826acf94336437ea87aa7d2c5b7e2c47e9116d983e49da7d33084066e36e2284c89dd1580446e90

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks