General

  • Target

    NEWQUOTATIONs#280321_RFQ_PRODUCTS_ENQUIRY_TRINITY_VIETNAM_CO.exe

  • Size

    704KB

  • Sample

    210412-k1en2bq9x6

  • MD5

    c96b1f4dc1a2a841743b670d775c9466

  • SHA1

    81ca2259f3933734542cbcb4d5393d4878f41a66

  • SHA256

    83c0e817f62582a3e6aa5f20d6cb6738588f8bd7a3d076f6d174ac1b10bbe8c4

  • SHA512

    295342ae9cca7dd33ee9bbd380fc070d2a351f9ffa37428879b4e6fd72b5f6ae2bcdb52faaa2cee62a3c1e446c71f9ee43e8c8fded35f4a90fc06dd492b195f4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    eammorris@askoblue.com
  • Password:
    zQHG#uz5

Targets

    • Target

      NEWQUOTATIONs#280321_RFQ_PRODUCTS_ENQUIRY_TRINITY_VIETNAM_CO.exe

    • Size

      704KB

    • MD5

      c96b1f4dc1a2a841743b670d775c9466

    • SHA1

      81ca2259f3933734542cbcb4d5393d4878f41a66

    • SHA256

      83c0e817f62582a3e6aa5f20d6cb6738588f8bd7a3d076f6d174ac1b10bbe8c4

    • SHA512

      295342ae9cca7dd33ee9bbd380fc070d2a351f9ffa37428879b4e6fd72b5f6ae2bcdb52faaa2cee62a3c1e446c71f9ee43e8c8fded35f4a90fc06dd492b195f4

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • 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

3
T1082

Query Registry

2
T1012

Collection

Data from Local System

3
T1005

Tasks