General

  • Target

    0d2f730e4b147a8413e4d9c85a4d73533b170c307797c08dacfa16504976be19

  • Size

    595KB

  • Sample

    220520-2n5f5aagcm

  • MD5

    2b000c8b0fe26716d318806b04328657

  • SHA1

    1af72746e0450bb8a658fafab4d47ccc9a954fe0

  • SHA256

    0d2f730e4b147a8413e4d9c85a4d73533b170c307797c08dacfa16504976be19

  • SHA512

    c5b20b8b2ff15ab58e478c6e2fa60d20200a5ff43e372a98fd6966c5b9b9376a3b8e51a9bea47a659a6905d04ff59132b24c37e330275e111f01ef191269cbc5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.uwcelectric.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    TYT#ikd1

Targets

    • Target

      swift comfirmation.exe

    • Size

      647KB

    • MD5

      910bc85e248fa7e2794e3d2469d3b94d

    • SHA1

      09e4a1102f7df7a21f22bfc02f9649918db1f60d

    • SHA256

      205034fed0edd3c5d8069c63783b3cfdeba86816e6f1f5f6899add096d482bff

    • SHA512

      45bec61009a8bb18b860ac3086e94c3794fe353c85180e38ccb86b81c9f05137afb9fad605ea4ecbf3f60b84f20e17d11cafb430a13cb4c4e34c648677924dac

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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

    • 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

2
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