General

  • Target

    4cc0d670a83c5a2ff6a007334791c22d50595b6e533509fc991da21346913182

  • Size

    710KB

  • Sample

    240426-cdqgsahb4x

  • MD5

    bbbf2f01e96709bae55c957bb8866504

  • SHA1

    3c717465003874f31534d629cdd0e267e52a6615

  • SHA256

    4cc0d670a83c5a2ff6a007334791c22d50595b6e533509fc991da21346913182

  • SHA512

    3542e4d2521cdfdde02f13cd4ff19400bce6bdf3c86d9d944c8952b08eb502b61554b9711762bd8ba42b9fbfabdce8a2a8bcc80e9037c3a90f286edfd5075dea

  • SSDEEP

    12288:2WYIPXjxannnHg2mRwzRYkuPwwCUHELwOb5eP965jW3FwG4chEg0nsk8Wq:2WYIPFannnHg2mRwziPxCbLvbg965pj4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.jspkragujevac.rs
  • Port:
    587
  • Username:
    e-racun@jspkragujevac.rs
  • Password:
    LA5dv##fbU%5
  • Email To:
    chibuike57@proton.me

Targets

    • Target

      4cc0d670a83c5a2ff6a007334791c22d50595b6e533509fc991da21346913182

    • Size

      710KB

    • MD5

      bbbf2f01e96709bae55c957bb8866504

    • SHA1

      3c717465003874f31534d629cdd0e267e52a6615

    • SHA256

      4cc0d670a83c5a2ff6a007334791c22d50595b6e533509fc991da21346913182

    • SHA512

      3542e4d2521cdfdde02f13cd4ff19400bce6bdf3c86d9d944c8952b08eb502b61554b9711762bd8ba42b9fbfabdce8a2a8bcc80e9037c3a90f286edfd5075dea

    • SSDEEP

      12288:2WYIPXjxannnHg2mRwzRYkuPwwCUHELwOb5eP965jW3FwG4chEg0nsk8Wq:2WYIPFannnHg2mRwziPxCbLvbg965pj4

    • AgentTesla

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

    • Checks computer location settings

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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks