General

  • Target

    14f6dd1f7dd2cd56cff70627a813c9eb85a272fad1c5ae1c73ee2101e531a591.xz

  • Size

    648KB

  • Sample

    240619-bgk6ss1aqf

  • MD5

    504fea9fa8aec68890c7162d418befb0

  • SHA1

    df7fb3566615d720aaf90ef68c6ed21c66fc793b

  • SHA256

    14f6dd1f7dd2cd56cff70627a813c9eb85a272fad1c5ae1c73ee2101e531a591

  • SHA512

    ed523bd25fb5a7fa544fb473131875f0c0bd819adb916a1d389279674587a56c4903e2839e1f61c816832a94d1d7a98779d0750dc5648dffbd4c1af37a3891dd

  • SSDEEP

    12288:bqGkyyy0K2FACTShENM1SOVebQCxLJexBn4cvTaGRVyhemV:2Gzyy0KSABJ1SOJCxLmn4gTByhd

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      14f6dd1f7dd2cd56cff70627a813c9eb85a272fad1c5ae1c73ee2101e531a591

    • Size

      828KB

    • MD5

      83fbcb1487d75d58cafaf8735667ba95

    • SHA1

      e4148b6a31ba7501bb2a753276e241f2af5f2c85

    • SHA256

      eb79cca838f57ff5f3bf13f3bbce26859ec27d6dbcdc96ada3c2ead3ef27abf7

    • SHA512

      51416405bc238f20c365aebd02b4568cecec077b0bef3a6623990c43520d077a52a9af6d21e89e7e3f7e7670db5ac4d671b831115954e85682ad619c19940dbe

    • SSDEEP

      12288:Qloc81Htkyyy0K2LACFShFNM1SOrebQrxL7eZBn4cpTaGRq3heykR:Ql0tzyy0KGANW1SOrrxLan4YT+3ho

    • 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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables packed with SmartAssembly

    • 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