General

  • Target

    52adc27e384cb4ae0d0e096792526ca660f8b2a42e60d69ffd44e67def0fcf12.exe

  • Size

    748KB

  • Sample

    240522-b2akssgc22

  • MD5

    a7666685c69267f2f9108e319cd0cd38

  • SHA1

    feac316461451bcaf6a64ea92217ad8046808844

  • SHA256

    52adc27e384cb4ae0d0e096792526ca660f8b2a42e60d69ffd44e67def0fcf12

  • SHA512

    49ad3a8d3a2ebf64c9feaddf916c2c20466bc355116177c81eaf045b251a2e034154832f60b9d40cde2b919e9d818bef3fc97588f95ab455af3971d823a1ddf0

  • SSDEEP

    12288:Tzln6yWn7fcpVZlu/6uHKbRLj4+62FGPstWYfMXmxk5QI7O/125khKzwcY+Dw3:Nn698VVYeLL62F0+WGam2qnUkwzwcQ

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      52adc27e384cb4ae0d0e096792526ca660f8b2a42e60d69ffd44e67def0fcf12.exe

    • Size

      748KB

    • MD5

      a7666685c69267f2f9108e319cd0cd38

    • SHA1

      feac316461451bcaf6a64ea92217ad8046808844

    • SHA256

      52adc27e384cb4ae0d0e096792526ca660f8b2a42e60d69ffd44e67def0fcf12

    • SHA512

      49ad3a8d3a2ebf64c9feaddf916c2c20466bc355116177c81eaf045b251a2e034154832f60b9d40cde2b919e9d818bef3fc97588f95ab455af3971d823a1ddf0

    • SSDEEP

      12288:Tzln6yWn7fcpVZlu/6uHKbRLj4+62FGPstWYfMXmxk5QI7O/125khKzwcY+Dw3:Nn698VVYeLL62F0+WGam2qnUkwzwcQ

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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.

    • 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