General

  • Target

    Sigmanly_97b6842b7ae2e92619f7001e81705c62395fd8d4a2d5dbfa20b47976aaa3cdd1

  • Size

    868KB

  • Sample

    250113-q1lc8stpe1

  • MD5

    2327e5c20b3cce0be582dbe461480cc2

  • SHA1

    42d14ae8b60e22f36f487d8c3bee1ad43199170f

  • SHA256

    97b6842b7ae2e92619f7001e81705c62395fd8d4a2d5dbfa20b47976aaa3cdd1

  • SHA512

    01f3c2ee422ccb7db9acbedc078d0d485508443de3366959df5ab9c4cd5eb67ee5d0dca29ee45c9a09a1adc8509e6bd4b28bdfc325c2310091e960338273009e

  • SSDEEP

    24576:zBXaePxOLRTgnZZSS+5VKGIUuZfEfCk7nXFGxR3X3N:9XaePxOLJgnZ0SQVKGSYCGYxRH3N

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    nXe0M~WkW&nJ

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    nXe0M~WkW&nJ

Targets

    • Target

      Sigmanly_97b6842b7ae2e92619f7001e81705c62395fd8d4a2d5dbfa20b47976aaa3cdd1

    • Size

      868KB

    • MD5

      2327e5c20b3cce0be582dbe461480cc2

    • SHA1

      42d14ae8b60e22f36f487d8c3bee1ad43199170f

    • SHA256

      97b6842b7ae2e92619f7001e81705c62395fd8d4a2d5dbfa20b47976aaa3cdd1

    • SHA512

      01f3c2ee422ccb7db9acbedc078d0d485508443de3366959df5ab9c4cd5eb67ee5d0dca29ee45c9a09a1adc8509e6bd4b28bdfc325c2310091e960338273009e

    • SSDEEP

      24576:zBXaePxOLRTgnZZSS+5VKGIUuZfEfCk7nXFGxR3X3N:9XaePxOLJgnZ0SQVKGSYCGYxRH3N

    • 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.

    • 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 Enterprise v15

Tasks