Analysis

  • max time kernel
    135s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 02:27

General

  • Target

    d3961de67c0453dd8a66da7b36c527de106d9dcb8e8e7cb985afdcd26692fd0e.exe

  • Size

    234KB

  • MD5

    9dd5172ad690b1b107486f558b260d2d

  • SHA1

    2178edeb89ef25657ad7ee91c0502ef22febc0b8

  • SHA256

    d3961de67c0453dd8a66da7b36c527de106d9dcb8e8e7cb985afdcd26692fd0e

  • SHA512

    be0633e058718ae7487c9a79770e8cfa71e7e02a28537c54aa9f55dd152748f2a7c1509c7fd6e852210b6a976784b1399d5c5ff0f3c42efc0f13d2e5478251f8

  • SSDEEP

    3072:UvldeCmyuzroZaXmb4bla8S3endPMWV5K2oBXG:UddeCmyuzroZaWb4blnwenyWbo9

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    66.29.151.236
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    uqVB1SvSSAxB

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3961de67c0453dd8a66da7b36c527de106d9dcb8e8e7cb985afdcd26692fd0e.exe
    "C:\Users\Admin\AppData\Local\Temp\d3961de67c0453dd8a66da7b36c527de106d9dcb8e8e7cb985afdcd26692fd0e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1620-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

    Filesize

    4KB

  • memory/1620-1-0x0000000000010000-0x0000000000050000-memory.dmp

    Filesize

    256KB

  • memory/1620-2-0x0000000005190000-0x0000000005734000-memory.dmp

    Filesize

    5.6MB

  • memory/1620-3-0x0000000004B60000-0x0000000004BC6000-memory.dmp

    Filesize

    408KB

  • memory/1620-4-0x0000000074A30000-0x00000000751E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1620-5-0x00000000061F0000-0x0000000006240000-memory.dmp

    Filesize

    320KB

  • memory/1620-6-0x00000000062E0000-0x000000000637C000-memory.dmp

    Filesize

    624KB

  • memory/1620-7-0x0000000006420000-0x00000000064B2000-memory.dmp

    Filesize

    584KB

  • memory/1620-8-0x00000000063C0000-0x00000000063CA000-memory.dmp

    Filesize

    40KB

  • memory/1620-9-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

    Filesize

    4KB

  • memory/1620-10-0x0000000074A30000-0x00000000751E0000-memory.dmp

    Filesize

    7.7MB