General

  • Target

    Wofco BonList3302023.doc

  • Size

    30KB

  • Sample

    230331-klgtlsad9s

  • MD5

    61d8bbf815b071d980aa91c141bfd896

  • SHA1

    f65ce51936aa0f68d15b7a43e1eece852d38245e

  • SHA256

    22d0b4c2c6256e73bcb60045f47f342465f8d9535c848bf6201730b26cf10f50

  • SHA512

    7463e3d33c79ade3cb0b25bdeb2ebfeee4cfe5d8d7873a851925ed04b45450708013a7033abbc42777f333cbc32646941608e620a37c121463d2589d021bcad6

  • SSDEEP

    768:nFx0XaIsnPRIa4fwJMyd2AZSKmpGU7hDc9t+SRrygd9YYSli:nf0Xvx3EMyd2KmpG6Dc9tnygd9Y5li

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    jaime.jeminez@gmail.com
  • Password:
    pyyyhreafpwghuxn
  • Email To:
    jaime.jeminez@gmail.com

Targets

    • Target

      Wofco BonList3302023.doc

    • Size

      30KB

    • MD5

      61d8bbf815b071d980aa91c141bfd896

    • SHA1

      f65ce51936aa0f68d15b7a43e1eece852d38245e

    • SHA256

      22d0b4c2c6256e73bcb60045f47f342465f8d9535c848bf6201730b26cf10f50

    • SHA512

      7463e3d33c79ade3cb0b25bdeb2ebfeee4cfe5d8d7873a851925ed04b45450708013a7033abbc42777f333cbc32646941608e620a37c121463d2589d021bcad6

    • SSDEEP

      768:nFx0XaIsnPRIa4fwJMyd2AZSKmpGU7hDc9t+SRrygd9YYSli:nf0Xvx3EMyd2KmpG6Dc9tnygd9Y5li

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks