General

  • Target

    0238-35-pdf.scr.exe

  • Size

    3.0MB

  • Sample

    210128-vh3j6a3yn6

  • MD5

    9b91522e5b94de5ec962c882288671c5

  • SHA1

    b16caef75e2c751eef2678aafbf2ed5facc9459e

  • SHA256

    440584979145865d0d4ed8eccb48f90699a2b0c6c6eef0c2162db0d42b1c0fdc

  • SHA512

    d09fab75ea65faa4b6f01c206c014db414d36728ae164478df6d5bb415bd15c1d8a9a62ace595d33927588cdb3a62c95269e23cfbc05d268a1b06f9a6d381b3d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.newviking.com.my
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    {&SgX:^(7m

Targets

    • Target

      0238-35-pdf.scr.exe

    • Size

      3.0MB

    • MD5

      9b91522e5b94de5ec962c882288671c5

    • SHA1

      b16caef75e2c751eef2678aafbf2ed5facc9459e

    • SHA256

      440584979145865d0d4ed8eccb48f90699a2b0c6c6eef0c2162db0d42b1c0fdc

    • SHA512

      d09fab75ea65faa4b6f01c206c014db414d36728ae164478df6d5bb415bd15c1d8a9a62ace595d33927588cdb3a62c95269e23cfbc05d268a1b06f9a6d381b3d

    • AgentTesla

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

    • Modifies Windows Defender Real-time Protection settings

    • Turns off Windows Defender SpyNet reporting

    • Windows security bypass

    • AgentTesla Payload

    • 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.

    • Windows security modification

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

4
T1089

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks