General

  • Target

    85902cbc14f1f002d333f41395e8dbc58b7224972719052ea316b78ab387039c

  • Size

    726KB

  • Sample

    241121-bqyhgsyaqp

  • MD5

    b448ab45fe85c873a8b1591a1e744217

  • SHA1

    8957e388c4f77329a071ae455c2f35c08db0d178

  • SHA256

    85902cbc14f1f002d333f41395e8dbc58b7224972719052ea316b78ab387039c

  • SHA512

    1ebfd8cf29ab01dc867b56597f9bc077d9a40e5d25f3dae4b4436e5324016ca824ea200800bec82f0fc14237d424896c9ee023ff6904e979e80423db92e881e2

  • SSDEEP

    12288:PL+RTjvY2ZT/7C/l8fd9FI7d+U4tpN4o5oEZToPYf/uH0OjrCtL/2j+ZOrrBdS:PL+tjw29cshKd+Ukz5PZvf/uUOjmNS+Z

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ,%EVY$JU0=lu

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ,%EVY$JU0=lu

Targets

    • Target

      RFQ_TFS-1509-AL NASR ENGINEERING.exe

    • Size

      769KB

    • MD5

      408a48c1608970d44f98725c56fc1fdf

    • SHA1

      7253a22b1966427ec989c8fcc892fbf51086ced6

    • SHA256

      6deca5f293b38099e0414eb589451aa6880e7c4e2812f90dd6d59fcb768409c6

    • SHA512

      ac02fce542ff5c315773e48aa192b4b23647387529826ca48a372bc7ec70bd003ebb0e3cc30ea54f7af17423a417d8024922a47cd42cd5881496e86ca6538b86

    • SSDEEP

      12288:4rOJ+Ri3AgFd1DQrQzPzs9C/vm/AncL47aXCaMv6eEJ4T7o6M88g/orX04RTBWjc:UQ3AgCtWyAe47aXCaSDmuoI84oI6WFE

    • AgentTesla

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

    • Agenttesla family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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.

    • 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 Enterprise v15

Tasks