General

  • Target

    b47160d5d81de4c8094c324ea1b524f9.exe

  • Size

    481KB

  • Sample

    210423-hzy7xmngjj

  • MD5

    b47160d5d81de4c8094c324ea1b524f9

  • SHA1

    b5a67e93d6732cddb54571ec210bcdbfcce981dd

  • SHA256

    e94b5aa20648fa643e0ca1a1c5f182626512f65feb4e1ad6f71b7fc4b20ad634

  • SHA512

    96904793cf9c988e4704413d16b2932038aec96920ed634f9c0043c8c414d2bf7f4d350a1606a8c946f5bebc4587c1051358c81a87d83700c9ef969297b93645

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    sammorris@askoblue.com
  • Password:
    P)RTDOg8

Targets

    • Target

      b47160d5d81de4c8094c324ea1b524f9.exe

    • Size

      481KB

    • MD5

      b47160d5d81de4c8094c324ea1b524f9

    • SHA1

      b5a67e93d6732cddb54571ec210bcdbfcce981dd

    • SHA256

      e94b5aa20648fa643e0ca1a1c5f182626512f65feb4e1ad6f71b7fc4b20ad634

    • SHA512

      96904793cf9c988e4704413d16b2932038aec96920ed634f9c0043c8c414d2bf7f4d350a1606a8c946f5bebc4587c1051358c81a87d83700c9ef969297b93645

    • 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