Overview

overview

10

Static

static

10

Salary.receipt.exe

windows7_x64

10

Salary.receipt.exe

windows10_x64

10

Sharing

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General

  • Target

    Salary.receipt.exe

  • Size

    507KB

  • Sample

    201109-6axfgxqeqx

  • MD5

    2ed6761b5c7c9bb55e0d800c64398192

  • SHA1

    28832ad3b22e7a6bce3d16e11aa87654f34acef5

  • SHA256

    94b82f0655f1a9554b3cea8e31ac76ffd4cbcb32ebee539fb7706d4ced615fa7

  • SHA512

    71a56a17e0a45f7a57a4bba731e0f9b764e74d3cd76ad0ffea82d5f77987446146b2c07380c86d65a9281ef2beb706f81346dd09daf080eb962e0cffcbdd4a7c

Score
10/10
agentteslasnakebotcoreentitykeyloggerpersistencerezer0snakebotspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.emjayes.com
  • Port:
    587
  • Username:
    alert@emjayes.com
  • Password:
    covid2019$

Targets

    • Target

      Salary.receipt.exe

    • Size

      507KB

    • MD5

      2ed6761b5c7c9bb55e0d800c64398192

    • SHA1

      28832ad3b22e7a6bce3d16e11aa87654f34acef5

    • SHA256

      94b82f0655f1a9554b3cea8e31ac76ffd4cbcb32ebee539fb7706d4ced615fa7

    • SHA512

      71a56a17e0a45f7a57a4bba731e0f9b764e74d3cd76ad0ffea82d5f77987446146b2c07380c86d65a9281ef2beb706f81346dd09daf080eb962e0cffcbdd4a7c

    Score
    10/10
    agentteslacoreentitykeyloggerpersistencerezer0spywarestealertrojan

    • AgentTesla

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

      keyloggertrojanstealerspywareagenttesla

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • AgentTesla Payload

    • rezer0

      Detects ReZer0, a packer with multiple versions used in various campaigns.

      rezer0

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spyware

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

      spyware

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spyware

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Tasks