Analysis

  • max time kernel
    135s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2023 02:01

General

  • Target

    231121-09-AgentTesla-fbf7c4.exe

  • Size

    247KB

  • MD5

    2f879d56d9598e574c741396c5f756be

  • SHA1

    fbf7c47229c56ccddbbd757e0f48eb0d45b5c68a

  • SHA256

    488b5c24fae2c85b0e9d2c26cb85992d5fd7f0cec219a0a818d648a9890c491d

  • SHA512

    371d504f33e86fb18643ed58577b1b31e11949d330abe7814340c82082787593cb07a377c3fb39ac40dc2569894fda164e88eaae50a8c51a74520a836a37bcae

  • SSDEEP

    6144:fcIUpNx1hNkchYyWn1YGn6ou0KDJHZ2t:7UpNx1hNkchtWnOG9u0KDK

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\231121-09-AgentTesla-fbf7c4.exe
    "C:\Users\Admin\AppData\Local\Temp\231121-09-AgentTesla-fbf7c4.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1260

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1260-0-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1260-1-0x0000000000630000-0x0000000000674000-memory.dmp

    Filesize

    272KB

  • memory/1260-2-0x0000000005580000-0x0000000005B24000-memory.dmp

    Filesize

    5.6MB

  • memory/1260-3-0x0000000005000000-0x0000000005010000-memory.dmp

    Filesize

    64KB

  • memory/1260-4-0x0000000005180000-0x00000000051E6000-memory.dmp

    Filesize

    408KB

  • memory/1260-7-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1260-8-0x00000000066E0000-0x0000000006730000-memory.dmp

    Filesize

    320KB

  • memory/1260-9-0x00000000067D0000-0x000000000686C000-memory.dmp

    Filesize

    624KB

  • memory/1260-10-0x0000000005000000-0x0000000005010000-memory.dmp

    Filesize

    64KB

  • memory/1260-11-0x0000000006910000-0x00000000069A2000-memory.dmp

    Filesize

    584KB

  • memory/1260-12-0x00000000068C0000-0x00000000068CA000-memory.dmp

    Filesize

    40KB