General

  • Target

    4c17e4d9c3a7736be5e5ee6bb8c414e9a66a397fb81e3185b5d2360a84a084f0.exe

  • Size

    704KB

  • Sample

    240223-frmvlacb35

  • MD5

    f83c7fd6121ed30a1f11a6496ac24537

  • SHA1

    29c827c2f2a7618c7f44d6f08db8df338b90f069

  • SHA256

    4c17e4d9c3a7736be5e5ee6bb8c414e9a66a397fb81e3185b5d2360a84a084f0

  • SHA512

    e3c6b7169f0dd035afa63c38075aa28db13751cd8ee39758156703c0ff137b10ce40480e4952ddb1186ed6088e1d07893656818219d8d02390323afb83e92818

  • SSDEEP

    12288:7ws/jiK5Ujd53LlvqAg4i9yoXCdyZ/+k+FbvPDaNHjAnBRl9VuQBBtFDgYRoTMpr:hiGK5g4i9yaQC+kw32HmBr3BtF9RoTMh

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      4c17e4d9c3a7736be5e5ee6bb8c414e9a66a397fb81e3185b5d2360a84a084f0.exe

    • Size

      704KB

    • MD5

      f83c7fd6121ed30a1f11a6496ac24537

    • SHA1

      29c827c2f2a7618c7f44d6f08db8df338b90f069

    • SHA256

      4c17e4d9c3a7736be5e5ee6bb8c414e9a66a397fb81e3185b5d2360a84a084f0

    • SHA512

      e3c6b7169f0dd035afa63c38075aa28db13751cd8ee39758156703c0ff137b10ce40480e4952ddb1186ed6088e1d07893656818219d8d02390323afb83e92818

    • SSDEEP

      12288:7ws/jiK5Ujd53LlvqAg4i9yoXCdyZ/+k+FbvPDaNHjAnBRl9VuQBBtFDgYRoTMpr:hiGK5g4i9yaQC+kw32HmBr3BtF9RoTMh

    • 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 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

    • Checks computer location settings

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

    • Adds Run key to start application

    • 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