General

  • Target

    b6b6059edc4a5ff71a5f20de98924dafce4015e0846044c0f28e3d86f4028680

  • Size

    395KB

  • Sample

    220520-3btpjagfa3

  • MD5

    52202a5ae5cd35965fb8accde5f8a795

  • SHA1

    abf26909866b9226ee2c9a16cc2386943b64924a

  • SHA256

    b6b6059edc4a5ff71a5f20de98924dafce4015e0846044c0f28e3d86f4028680

  • SHA512

    f52d893d66d35f8af6c851079f8266bd7902750be641e818d222c8661990d55a2c619ae5aeb8afa3d5610e9a51b0fc4491d4b6a3d69ac1cc3cd7c4c36f622653

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    drsaint1992101

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    drsaint1992101

Targets

    • Target

      Mediform SA Order 07082020.exe

    • Size

      433KB

    • MD5

      1feec404f7d6d4e186317e75426be384

    • SHA1

      9d03659a899d900688733c51d04f263179f76afa

    • SHA256

      50529809a9b92f2b353e94a27b850f7be76f820c9a413a5968d686026936c133

    • SHA512

      365fbe02de6112915a48948769e3bb3d295eb8d3a39cd8ee110ef977b5a3adbff3e28d56349a507d49cd47d100a50da9bd43f706f6c3ad0dae46c7cf1fb1e12f

    • 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