General

  • Target

    SecuriteInfo.com.Trojan.Inject4.48217.5038.20848.exe

  • Size

    852KB

  • Sample

    221206-g8bz4abh83

  • MD5

    4b3cfdb34766e74f6cd23457413e472b

  • SHA1

    89b2cdd54219e372faeb511b6c5db80b73a268fe

  • SHA256

    7317c534293832125834e4620b4b25eee69673d74205a8355c84e155225c558c

  • SHA512

    5c8d5c116fc36cd376e090409b612d1b6a1bd015015e37fe60f6747a8e822b634238ced0a1ddb5bf5abd5778089fb7bce679553f5f51c5d2f2fb4d37e7c10123

  • SSDEEP

    12288:2ck+ySNerfWwSFZZYEkQl40+xvFDA4p/70KGB6jmaZgKZ/nXt7virmWhlGLaQYI:Nk+ySYfjSrZYnSti9A4p/7sw

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.huiijingco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    lNLUrZT2

Targets

    • Target

      SecuriteInfo.com.Trojan.Inject4.48217.5038.20848.exe

    • Size

      852KB

    • MD5

      4b3cfdb34766e74f6cd23457413e472b

    • SHA1

      89b2cdd54219e372faeb511b6c5db80b73a268fe

    • SHA256

      7317c534293832125834e4620b4b25eee69673d74205a8355c84e155225c558c

    • SHA512

      5c8d5c116fc36cd376e090409b612d1b6a1bd015015e37fe60f6747a8e822b634238ced0a1ddb5bf5abd5778089fb7bce679553f5f51c5d2f2fb4d37e7c10123

    • SSDEEP

      12288:2ck+ySNerfWwSFZZYEkQl40+xvFDA4p/70KGB6jmaZgKZ/nXt7virmWhlGLaQYI:Nk+ySYfjSrZYnSti9A4p/7sw

    • AgentTesla

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

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • 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.

    • Accesses Microsoft Outlook profiles

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks