General

  • Target

    Docu_001220778003833_20102021.exe

  • Size

    831KB

  • Sample

    211022-n3fvesbeg7

  • MD5

    a1f4d1ffb6dbcc768b27f7b9fc8ab0bc

  • SHA1

    843988c2715972c709d61afb101efd11f00be8ef

  • SHA256

    3da13730415f09c07260e029a2e36f2a9c92d9f85f86d0c2879659f28e2cf83a

  • SHA512

    4dd2cfd06accb0c4f49425304950baf79cea33d76fc8831cfa20c76a0e8cfd1a89ac623d6f3e13a146778fb8be516aa3425abfb760b544244f4af8e338afafb1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.acpl.net.in
  • Port:
    587
  • Username:
    qcesd@acpl.net.in
  • Password:
    Hi~M)?*G~-Zd

Targets

    • Target

      Docu_001220778003833_20102021.exe

    • Size

      831KB

    • MD5

      a1f4d1ffb6dbcc768b27f7b9fc8ab0bc

    • SHA1

      843988c2715972c709d61afb101efd11f00be8ef

    • SHA256

      3da13730415f09c07260e029a2e36f2a9c92d9f85f86d0c2879659f28e2cf83a

    • SHA512

      4dd2cfd06accb0c4f49425304950baf79cea33d76fc8831cfa20c76a0e8cfd1a89ac623d6f3e13a146778fb8be516aa3425abfb760b544244f4af8e338afafb1

    • 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.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks