General

  • Target

    Cxkuuoxawiqwi7.exe

  • Size

    553KB

  • Sample

    201204-jmnwthgpcn

  • MD5

    a7904b3d5a397e19b261ae29c3ecf22c

  • SHA1

    1088ccf369796728f14fcc72509b4349ea381c00

  • SHA256

    a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7

  • SHA512

    a25d0d4d399351f170a34941d888ce4245153cdb3aad1f5e7ac54f7a78a7ac0fac08f555d0aadf133691e0689bddb1b2eda8d8adf21f304a4c3f8332da56b8df

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    lark.larry@yandex.com
  • Password:
    2x&44//*-444

Targets

    • Target

      Cxkuuoxawiqwi7.exe

    • Size

      553KB

    • MD5

      a7904b3d5a397e19b261ae29c3ecf22c

    • SHA1

      1088ccf369796728f14fcc72509b4349ea381c00

    • SHA256

      a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7

    • SHA512

      a25d0d4d399351f170a34941d888ce4245153cdb3aad1f5e7ac54f7a78a7ac0fac08f555d0aadf133691e0689bddb1b2eda8d8adf21f304a4c3f8332da56b8df

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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

    • Looks up external IP address via web service

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

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

Collection

Data from Local System

3
T1005

Tasks