Overview

overview

10

Static

static

3

f6386e0d37...9c.exe

windows7-x64

10

f6386e0d37...9c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f6386e0d3724eb32912521c957a1108862892dcf473f5ab73cbbbaaf29955e9c.exe

  • Size

    645KB

  • Sample

    240328-c8vd8abb39

  • MD5

    949ebdc21945246ac2ad1fc10802f102

  • SHA1

    6e1a52f3dfd76fb2f233ce96dc0404678d2d0059

  • SHA256

    f6386e0d3724eb32912521c957a1108862892dcf473f5ab73cbbbaaf29955e9c

  • SHA512

    479e9493102fdbd163a8aac0c5dce421a0290956d1f08df3fac00d258d593821ac3a279f8b9e93d8b7d321a6645205426b744a4ddecd4634572d84b9e444ba99

  • SSDEEP

    12288:JS4CMwbmLrlIz+jo3sbGwUuveksc4RojOUiPmW1/uXZZTrtdiA3HqoQc1ay7:JSOrW93sbGkWc4ajzTZZCA3qoQ

Score
10/10
agentteslakeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.flying-fish-cn.com
  • Port:
    587
  • Username:
    office@flying-fish-cn.com
  • Password:
    hkk999@@@
  • Email To:
    office@flying-fish-cn.com

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.flying-fish-cn.com
  • Port:
    587
  • Username:
    office@flying-fish-cn.com
  • Password:
    hkk999@@@

Targets

    • Target

      f6386e0d3724eb32912521c957a1108862892dcf473f5ab73cbbbaaf29955e9c.exe

    • Size

      645KB

    • MD5

      949ebdc21945246ac2ad1fc10802f102

    • SHA1

      6e1a52f3dfd76fb2f233ce96dc0404678d2d0059

    • SHA256

      f6386e0d3724eb32912521c957a1108862892dcf473f5ab73cbbbaaf29955e9c

    • SHA512

      479e9493102fdbd163a8aac0c5dce421a0290956d1f08df3fac00d258d593821ac3a279f8b9e93d8b7d321a6645205426b744a4ddecd4634572d84b9e444ba99

    • SSDEEP

      12288:JS4CMwbmLrlIz+jo3sbGwUuveksc4RojOUiPmW1/uXZZTrtdiA3HqoQc1ay7:JSOrW93sbGkWc4ajzTZZCA3qoQ

    Score
    10/10
    agentteslakeyloggerspywarestealertrojan

    • AgentTesla

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

      keyloggertrojanstealerspywareagenttesla

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables packed with SmartAssembly

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

      spywarestealer

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Reads user/profile data of local email clients

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

      spywarestealer

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks