General

  • Target

    ff5c02d0b527a1c94ca3312cdd7f902d49f6d44440a697d8f3a1da6f87f02834

  • Size

    460KB

  • Sample

    220521-nx8cgsecf2

  • MD5

    906d67c66763ed2b1af2f73ba68935ee

  • SHA1

    36e664a476bc44ad4499e324b18a212dc5985275

  • SHA256

    ff5c02d0b527a1c94ca3312cdd7f902d49f6d44440a697d8f3a1da6f87f02834

  • SHA512

    849f0f808d197676fae7a07389b5a32ebf639b753ac0b4b2e9d9f62cbe2878b75489f25e2f208f6900658aa57bdb8395420de3519cfbf2a420295fa5f33772ca

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    mobile.mailer@yandex.com
  • Password:
    qwerty123@

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    mobile.mailer@yandex.com
  • Password:
    qwerty123@

Targets

    • Target

      RFQ-Fn909-20.DOCUment-NEW.hd.exe

    • Size

      484KB

    • MD5

      73ff45d78f333069ea5f34576fc02cc6

    • SHA1

      98900cadce7cffed7de5185efd95601036ea826d

    • SHA256

      9813475302a899ec9e920af208ba4373f752dc63c8577f0696092aadbc51fd59

    • SHA512

      294c4683ffa437ba873ce51e17ce5a9aa113c1a40f4bfde9b0014de66aa63b9237238a8c9c46e6ef497fbd362fd2af25b25010adb1ac0fc6945c10a13d6a72d2

    • AgentTesla

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

    • AgentTesla Payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks