General

  • Target

    Copy7510785002.exe

  • Size

    4.7MB

  • Sample

    240515-r2e4aaeb57

  • MD5

    40015adb59181ae2bc09e0f271373188

  • SHA1

    f1690da2e26e5a7d31d3cce7b74a6185f60333f5

  • SHA256

    4bcc19c324294a3b92ed5067ca495f51a05362edcb2cf7c09d8619842a25a99c

  • SHA512

    e5cbf81c29bb44dbee01474e15bef92211f70b57f91489ca963e0f91cab7077081453ee2d2f833e7002d96fd0bdd8a70af3263d4ec548f2af22e4a672a893145

  • SSDEEP

    24576:ULwV1goQrA9eYALPzgpICbdW/G/4ceP81kxr/wKXo4p/PGqA/v3MnU2ZRZhRVHTa:U0Vn

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    66.29.151.236
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    s9jjoVvaZchS

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

April3rd2024

C2

94.156.65.181:3434

Mutex

A234sdgrgMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Copy7510785002.exe

    • Size

      4.7MB

    • MD5

      40015adb59181ae2bc09e0f271373188

    • SHA1

      f1690da2e26e5a7d31d3cce7b74a6185f60333f5

    • SHA256

      4bcc19c324294a3b92ed5067ca495f51a05362edcb2cf7c09d8619842a25a99c

    • SHA512

      e5cbf81c29bb44dbee01474e15bef92211f70b57f91489ca963e0f91cab7077081453ee2d2f833e7002d96fd0bdd8a70af3263d4ec548f2af22e4a672a893145

    • SSDEEP

      24576:ULwV1goQrA9eYALPzgpICbdW/G/4ceP81kxr/wKXo4p/PGqA/v3MnU2ZRZhRVHTa:U0Vn

    • AgentTesla

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

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Detect ZGRat V1

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Async RAT payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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

    • 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

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks