General

  • Target

    Quotation#73280126721_Oriental_Fastech_Manufacturing.exe

  • Size

    763KB

  • Sample

    210426-g45atbvjfj

  • MD5

    37b814b74d28b26217d2d4b77ad2abc3

  • SHA1

    3df36477b86c9f882aedd0d3a1b6d82f3da1136b

  • SHA256

    8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4

  • SHA512

    a261e85a645915f6268fc21cf06b0478b0c41c55768ea4d868a2b469f441895a37d22447adaf2bc15071c8807087255ea060e9caf83e47ec688b85a866d047bc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    aammorris@askoblue.com
  • Password:
    hbqtHu^3

Targets

    • Target

      Quotation#73280126721_Oriental_Fastech_Manufacturing.exe

    • Size

      763KB

    • MD5

      37b814b74d28b26217d2d4b77ad2abc3

    • SHA1

      3df36477b86c9f882aedd0d3a1b6d82f3da1136b

    • SHA256

      8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4

    • SHA512

      a261e85a645915f6268fc21cf06b0478b0c41c55768ea4d868a2b469f441895a37d22447adaf2bc15071c8807087255ea060e9caf83e47ec688b85a866d047bc

    • 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