General

  • Target

    a121326cc19b1577e58f7d158a00f177e17838aa3c58f87442810e03e43d7416

  • Size

    1.2MB

  • Sample

    220521-cwp9qshffq

  • MD5

    9f0b2a3a1f4bc7c5f5c3387f88243906

  • SHA1

    9423646f5bf1e8292f154ef521f6a4cea105809c

  • SHA256

    a121326cc19b1577e58f7d158a00f177e17838aa3c58f87442810e03e43d7416

  • SHA512

    3511529146127ef831ea012aa2c5a58c417f6990ca33d102446e5a7849c4cd38eb9ce14aa7a172f505156cba9ea6d4005f6c6da5d9e0989a3b12684bd120e740

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.group-lem.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @@zsnB@7

Targets

    • Target

      _NEW_SAM.EXE

    • Size

      453KB

    • MD5

      c04719c0bf404d71e89dd8f13450004a

    • SHA1

      41901bcd3542a0bb305b73aff1fc3bc783a835c3

    • SHA256

      93220c70797eba4d500358a0aa5da89dd5008633fc10c39f47fe57a5d01dcff3

    • SHA512

      5fe381fd5e550b9ada35f14d48342cc7aee1f16e5617c1f471cd7872dafc5e554d1e4d5f023c87f9c74502956c4867765e18e4cb762ff46db8114e2d78ac9bcb

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks