General

  • Target

    04820741c7c5cb7794f8947f86742430.exe

  • Size

    843KB

  • Sample

    221124-jftesahb94

  • MD5

    04820741c7c5cb7794f8947f86742430

  • SHA1

    a94c8647111b6ec93431326f058ecb0d3b1748c8

  • SHA256

    af83ec1c9dcb87aff95947749679a89e2383592eb973b28274b0f81b840d21fb

  • SHA512

    111a94df8f642f191e224fc2ee1f7a394b65ab516df5d8a0ea956a7cb9bdd32dbefd201fea40288f811930d948e0d4f5bf6c93e53c7da40d255b2e87190ee8f4

  • SSDEEP

    12288:KmEYsZ1DX/VDJtV7H4JRIGo5b7B6eOVt0TKODNGqDxWEacybD:BEYkj4JRyb7BIbODNG4xWN

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    s$xlD^f9

Targets

    • Target

      04820741c7c5cb7794f8947f86742430.exe

    • Size

      843KB

    • MD5

      04820741c7c5cb7794f8947f86742430

    • SHA1

      a94c8647111b6ec93431326f058ecb0d3b1748c8

    • SHA256

      af83ec1c9dcb87aff95947749679a89e2383592eb973b28274b0f81b840d21fb

    • SHA512

      111a94df8f642f191e224fc2ee1f7a394b65ab516df5d8a0ea956a7cb9bdd32dbefd201fea40288f811930d948e0d4f5bf6c93e53c7da40d255b2e87190ee8f4

    • SSDEEP

      12288:KmEYsZ1DX/VDJtV7H4JRIGo5b7B6eOVt0TKODNGqDxWEacybD:BEYkj4JRyb7BIbODNG4xWN

    • 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 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

    • 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 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