General

  • Target

    2b41382003c69ada2d3c768899538940

  • Size

    997KB

  • Sample

    231231-gwp17aefe6

  • MD5

    2b41382003c69ada2d3c768899538940

  • SHA1

    6b78aef7fb97eda6bf9ea0c8616d9bc72ed3d0ae

  • SHA256

    7124fb0df6155156b778221b452958443e0a683c3420b3a117ca20f87a1f963d

  • SHA512

    162630eece207a7133b738f0be00241fb57837f5cee21ae51fa4a7a927ea552f572fbc3b4dcf036bb43c8739b3d88cba3daa18c22f56d8f0890cec7c51d55973

  • SSDEEP

    12288:WzdNH2yKmUFr9iX6SAnXh35/dPbik5p3ffqht8vLxvWjfhdUCiLh14BcxxUdaBc9:W7U3iKXF5/dP2kXPBjxejpdLiIkUF

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      2b41382003c69ada2d3c768899538940

    • Size

      997KB

    • MD5

      2b41382003c69ada2d3c768899538940

    • SHA1

      6b78aef7fb97eda6bf9ea0c8616d9bc72ed3d0ae

    • SHA256

      7124fb0df6155156b778221b452958443e0a683c3420b3a117ca20f87a1f963d

    • SHA512

      162630eece207a7133b738f0be00241fb57837f5cee21ae51fa4a7a927ea552f572fbc3b4dcf036bb43c8739b3d88cba3daa18c22f56d8f0890cec7c51d55973

    • SSDEEP

      12288:WzdNH2yKmUFr9iX6SAnXh35/dPbik5p3ffqht8vLxvWjfhdUCiLh14BcxxUdaBc9:W7U3iKXF5/dP2kXPBjxejpdLiIkUF

    • AgentTesla

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

    • AgentTesla payload

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • 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 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.

    • 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 v15

Tasks