General

  • Target

    2199f5f684561a203b2c07a108586f98690f8a88240444090550bd51f028b7c4

  • Size

    238KB

  • Sample

    240629-by4dps1cnp

  • MD5

    d1506fb79fe157864b5f1deb19d08505

  • SHA1

    289e16817e5f938342b56276626ea132240b7db3

  • SHA256

    2199f5f684561a203b2c07a108586f98690f8a88240444090550bd51f028b7c4

  • SHA512

    0b6b9c8f07c4dfa4da92bad5b11989628572f51f6aaec7b07f48e0d249156ac17b9e1c83daf0cdd054b9e83d284e298f775f097b09972d7c4b63ae2c3c4ecad4

  • SSDEEP

    3072:Bj6SVchfObYn3NbQw54d0TZ0tShuwUPnS21mQbnc+BR0pKREX/WONBuwrhmc7U1I:B2cifmhpdUZ0td6uwrhmEicrFRnTAg

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    162.254.34.31
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    UBnnnstayQMK

Targets

    • Target

      2199f5f684561a203b2c07a108586f98690f8a88240444090550bd51f028b7c4

    • Size

      238KB

    • MD5

      d1506fb79fe157864b5f1deb19d08505

    • SHA1

      289e16817e5f938342b56276626ea132240b7db3

    • SHA256

      2199f5f684561a203b2c07a108586f98690f8a88240444090550bd51f028b7c4

    • SHA512

      0b6b9c8f07c4dfa4da92bad5b11989628572f51f6aaec7b07f48e0d249156ac17b9e1c83daf0cdd054b9e83d284e298f775f097b09972d7c4b63ae2c3c4ecad4

    • SSDEEP

      3072:Bj6SVchfObYn3NbQw54d0TZ0tShuwUPnS21mQbnc+BR0pKREX/WONBuwrhmc7U1I:B2cifmhpdUZ0td6uwrhmEicrFRnTAg

    • AgentTesla

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

    • Checks computer location settings

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

    • 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

Execution

Command and Scripting Interpreter

1
T1059

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

3
T1082

Collection

Data from Local System

4
T1005

Tasks