General

  • Target

    Quotation#73280126721_Oriental_Fastech_Manufacturings.exe

  • Size

    799KB

  • Sample

    210426-792g26qesn

  • MD5

    f62392434dafe03001593e0dc43bfaae

  • SHA1

    d827ef768e8d470c2ced5af28aa3892e9969c9cf

  • SHA256

    5ff8126fb4025c8587191a776a7d505f1bcc825f87a8e21266f55d5ff3f2cccb

  • SHA512

    0d39eddb1ff2c14e8358f6a48d410915b220bedb1976cf7f3ad592859388f5b228adf3d60d36ebfae04364bb6cb83191f7f879d3edf22fde87067d4113e39529

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    sammorris@askoblue.com
  • Password:
    P)RTDOg8

Targets

    • Target

      Quotation#73280126721_Oriental_Fastech_Manufacturings.exe

    • Size

      799KB

    • MD5

      f62392434dafe03001593e0dc43bfaae

    • SHA1

      d827ef768e8d470c2ced5af28aa3892e9969c9cf

    • SHA256

      5ff8126fb4025c8587191a776a7d505f1bcc825f87a8e21266f55d5ff3f2cccb

    • SHA512

      0d39eddb1ff2c14e8358f6a48d410915b220bedb1976cf7f3ad592859388f5b228adf3d60d36ebfae04364bb6cb83191f7f879d3edf22fde87067d4113e39529

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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