General

  • Target

    Encomenda a Fornecedor nº 2177.exe

  • Size

    637KB

  • Sample

    200731-8eflt657ms

  • MD5

    05fbb43cc400bde8bbe2906e2d80d3a1

  • SHA1

    3c9c83a029cec65cb1a45f60aca45ca2eec9215f

  • SHA256

    f67337d939b7a8d33762e080856099d05b5ff3404bc285f4dd249281289f57c8

  • SHA512

    7e2f6a4acac158f81ce35993b374e2e919872399bf32ce0850ecc042eb85c6c8651f0ed2f863771a2d139f499bb35ad7d26fe61f70270f753481b405e6c94eb5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gruppoei.tk
  • Port:
    587
  • Username:
    helpwith@gruppoei.tk
  • Password:
    fC%ROLz}R,(*

Targets

    • Target

      Encomenda a Fornecedor nº 2177.exe

    • Size

      637KB

    • MD5

      05fbb43cc400bde8bbe2906e2d80d3a1

    • SHA1

      3c9c83a029cec65cb1a45f60aca45ca2eec9215f

    • SHA256

      f67337d939b7a8d33762e080856099d05b5ff3404bc285f4dd249281289f57c8

    • SHA512

      7e2f6a4acac158f81ce35993b374e2e919872399bf32ce0850ecc042eb85c6c8651f0ed2f863771a2d139f499bb35ad7d26fe61f70270f753481b405e6c94eb5

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • 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.

    • 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

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks