General

  • Target

    f66744477239c87939089b7bfb0e5396cf5addf0288b90b95178cc001c587c16

  • Size

    871KB

  • Sample

    220521-agxddsdbcl

  • MD5

    348d7c0aaca945e8aaa2c5fb7bfc1122

  • SHA1

    54ce23bc3e637191c19443069dc3e624e55af782

  • SHA256

    f66744477239c87939089b7bfb0e5396cf5addf0288b90b95178cc001c587c16

  • SHA512

    b4e9edc8addd54db88cbefd0df4faed8526fa6d6c733f727305fd08d691979982944ecc61b7e2ea55d39f3afa0d10f76db020acaaad757ce0be669840e8f6c42

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    drsaint1992101

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    drsaint1992101

Targets

    • Target

      f66744477239c87939089b7bfb0e5396cf5addf0288b90b95178cc001c587c16

    • Size

      871KB

    • MD5

      348d7c0aaca945e8aaa2c5fb7bfc1122

    • SHA1

      54ce23bc3e637191c19443069dc3e624e55af782

    • SHA256

      f66744477239c87939089b7bfb0e5396cf5addf0288b90b95178cc001c587c16

    • SHA512

      b4e9edc8addd54db88cbefd0df4faed8526fa6d6c733f727305fd08d691979982944ecc61b7e2ea55d39f3afa0d10f76db020acaaad757ce0be669840e8f6c42

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

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