General

  • Target

    191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234.zip

  • Size

    676KB

  • Sample

    240516-bfcg9sdb7s

  • MD5

    25fdfb9df36532b5885b11e6f4730685

  • SHA1

    ad05e6aee0da0791d9cdc1fbafb3479d19f2aadd

  • SHA256

    191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234

  • SHA512

    9ec2149ba994db78788b5c89310592feb9a01983d597d4e97ac6fa718f9f986868b2fbd5d810809e36e989bf64a73bca7c0bbd01e388a74dfddd33c63803fba4

  • SSDEEP

    12288:ZZdboSYvbnP/rHyiL2+fvs+LywhjghKio+NqaGa0lPhQd2mRiFtIUWiUopExAWFr:Z4SsnLyV+fvstwpgtG5PhQEmRiFtIFYg

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      purchase order T&B19-20PO128.bat

    • Size

      712KB

    • MD5

      cb557a97949c50fc133f4d58537ddc44

    • SHA1

      b46e14c0325e0b1419e6df97b20803eeb92a55b4

    • SHA256

      d967ab9c69606d614df05823f3fcb76d436dbda3f1306db4d132acbda8aa8cb5

    • SHA512

      91d5abcc7199c36eb89cc1a3536fb0ba633fa96f2743d7461d1b48a37f5e09974f05600b7d50cf8961dfcf414b6025ae4a14c0c500c6d5749d778e3a4650feb6

    • SSDEEP

      12288:zrXYMjhvPie/rByY77777777777774HOE+aEz+dbZjghmi8+NEaIa0lPhcPIuRiU:3YMFniyyVufcbRg/I5PhcwuRiFtq5630

    • 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks