General

  • Target

    AWB-20211211.14754943_TR.exe

  • Size

    881KB

  • Sample

    210114-wa9pt14xfs

  • MD5

    06f39e6b5df0f09e46de43052a0a1daf

  • SHA1

    bc9b010e302178fa30b1a8bb537af717993bd298

  • SHA256

    1760b657755f0891214e821f9435509c25cdd5d0da0205e8f390c1b57aad9a77

  • SHA512

    437d6eb152eb84f931eeeebb1015de7cb3753498d353bff9fe963cb9ae69eb499d55cc8549cc92b697a7c19d9a26fba418221835688316b7cda58a4933f92467

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.talleresgenerauto.es
  • Port:
    587
  • Username:
    chapaypintura@talleresgenerauto.es
  • Password:
    talleres20generauto19

Targets

    • Target

      AWB-20211211.14754943_TR.exe

    • Size

      881KB

    • MD5

      06f39e6b5df0f09e46de43052a0a1daf

    • SHA1

      bc9b010e302178fa30b1a8bb537af717993bd298

    • SHA256

      1760b657755f0891214e821f9435509c25cdd5d0da0205e8f390c1b57aad9a77

    • SHA512

      437d6eb152eb84f931eeeebb1015de7cb3753498d353bff9fe963cb9ae69eb499d55cc8549cc92b697a7c19d9a26fba418221835688316b7cda58a4933f92467

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • 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

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks