General

  • Target

    9b39828b28c9d575bb1d844c5fd6e1bb2a49ddfa02302e84caedd075b6625d1c

  • Size

    397KB

  • Sample

    220625-cq7a3aadcp

  • MD5

    7fc4300a6f6dea00b341018b3366e8be

  • SHA1

    05b8a1966cb6b423f9e0da49add7d7cd913a9c73

  • SHA256

    9b39828b28c9d575bb1d844c5fd6e1bb2a49ddfa02302e84caedd075b6625d1c

  • SHA512

    dcc16e705fd42d295e64580585068aed496611506ae26783321e00f63d50bbd8efadff7573f0c6c8bcc59eb9009b1b0d88fa3d5cd778135e1c049bcc203bd26c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.jlumberg-ss.com
  • Port:
    587
  • Username:
    admin@jlumberg-ss.com
  • Password:
    Xj)b!tl4

Targets

    • Target

      9b39828b28c9d575bb1d844c5fd6e1bb2a49ddfa02302e84caedd075b6625d1c

    • Size

      397KB

    • MD5

      7fc4300a6f6dea00b341018b3366e8be

    • SHA1

      05b8a1966cb6b423f9e0da49add7d7cd913a9c73

    • SHA256

      9b39828b28c9d575bb1d844c5fd6e1bb2a49ddfa02302e84caedd075b6625d1c

    • SHA512

      dcc16e705fd42d295e64580585068aed496611506ae26783321e00f63d50bbd8efadff7573f0c6c8bcc59eb9009b1b0d88fa3d5cd778135e1c049bcc203bd26c

    • AgentTesla

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

    • AgentTesla Payload

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • 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