General

  • Target

    87c99c79b83e874ae65c73f0d0becf1f3c0f852eece6cecc2f58e68bb771f65f

  • Size

    696KB

  • Sample

    240430-b9ngmagh58

  • MD5

    ddd11e30a659a00fe941d1e37a790867

  • SHA1

    90e8a7fcad3d4a253f370ff8e5f1d2cd862b9f3e

  • SHA256

    87c99c79b83e874ae65c73f0d0becf1f3c0f852eece6cecc2f58e68bb771f65f

  • SHA512

    e8c5094d4277bdec04a5a6adc2e9ffda1357f65e486aad3525213da04b91f9829a404d43c3dcf06631eacc4ae697d6bbcc44e9372507e51f4ef9f53f7dc7d499

  • SSDEEP

    12288:s+DbguB778Qe3UjYlE0OkxV3+hosBOu4241rYMDr4/KmppJ9H+DFV:FguBcUjUd6BOu42m0MDr4/Ky9sX

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      87c99c79b83e874ae65c73f0d0becf1f3c0f852eece6cecc2f58e68bb771f65f

    • Size

      696KB

    • MD5

      ddd11e30a659a00fe941d1e37a790867

    • SHA1

      90e8a7fcad3d4a253f370ff8e5f1d2cd862b9f3e

    • SHA256

      87c99c79b83e874ae65c73f0d0becf1f3c0f852eece6cecc2f58e68bb771f65f

    • SHA512

      e8c5094d4277bdec04a5a6adc2e9ffda1357f65e486aad3525213da04b91f9829a404d43c3dcf06631eacc4ae697d6bbcc44e9372507e51f4ef9f53f7dc7d499

    • SSDEEP

      12288:s+DbguB778Qe3UjYlE0OkxV3+hosBOu4241rYMDr4/KmppJ9H+DFV:FguBcUjUd6BOu42m0MDr4/Ky9sX

    • 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