General

  • Target

    d431116fbfd4b834386fb20d350e28f5b4fec9f0b74adec680030f21424f0a9f

  • Size

    472KB

  • Sample

    220520-28586agdf4

  • MD5

    b79ce665677d7afce4cbbeeb7c400ab4

  • SHA1

    504abdfafecacfc27cbec2879c5d0936cabd0088

  • SHA256

    d431116fbfd4b834386fb20d350e28f5b4fec9f0b74adec680030f21424f0a9f

  • SHA512

    7d4384ed601e46e07326aaba957bcc967a80ef44222788a0e85a0b16da7ca759a18b5ae94c019d27a9051958e4017191ac05d874dc0b158e2d9a7ba715b60b4c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.bnb-spa.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tPo!47:glt$E

Targets

    • Target

      Resume For a Job.exe

    • Size

      493KB

    • MD5

      ab25cea9f47198353f10b89bea4736e3

    • SHA1

      05b91a17ff73cdd1f27afeab94c14c26eafb777a

    • SHA256

      7965e56d288f6cdd4ae1c7f260dd5ddb1e6fb1c1485ff3d78f50fc1cbcb0b7ee

    • SHA512

      fc30f65820ccac91918c528e0ffa3299835c431569e2070ca8dda13c9e789e52dfe5b5cce39f043f7967d1b598a2bf9f48ad124a83a65ef77562bb39fc00f6ac

    • AgentTesla

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

    • AgentTesla Payload

    • 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

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