Analysis

  • max time kernel
    151s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 01:51

General

  • Target

    3a1d1ae71938d8aecbc26219a6319489eaa95108534ddcaa2dd799f3020e0dd3.exe

  • Size

    244KB

  • MD5

    64f3decde77e6eb51ee0031c9cc2cf3e

  • SHA1

    4694eae1bd9931695e0112ac15724e58502a9fa5

  • SHA256

    3a1d1ae71938d8aecbc26219a6319489eaa95108534ddcaa2dd799f3020e0dd3

  • SHA512

    85466d01152bcc0077fd7c60addbe4fea2679c9cd795b243359784eb557c90d30812bd344e5a650332b72bd4de50dac4a8a14b594c4c870b15336f827eaa12b2

  • SSDEEP

    3072:aLNfR1BdBtdit9KUWQQOHT28cms25IbEMhFq:aL1R1BdBtdQrPC8cmsHEQF

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.office365.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    =abwj!tc6_Xrbzx-=#j#f

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a1d1ae71938d8aecbc26219a6319489eaa95108534ddcaa2dd799f3020e0dd3.exe
    "C:\Users\Admin\AppData\Local\Temp\3a1d1ae71938d8aecbc26219a6319489eaa95108534ddcaa2dd799f3020e0dd3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2916

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2916-0-0x0000000000570000-0x00000000005B4000-memory.dmp
    Filesize

    272KB

  • memory/2916-1-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/2916-2-0x00000000055D0000-0x0000000005B74000-memory.dmp
    Filesize

    5.6MB

  • memory/2916-3-0x0000000005170000-0x0000000005180000-memory.dmp
    Filesize

    64KB

  • memory/2916-4-0x0000000005090000-0x00000000050F6000-memory.dmp
    Filesize

    408KB

  • memory/2916-5-0x0000000006780000-0x00000000067D0000-memory.dmp
    Filesize

    320KB

  • memory/2916-6-0x0000000006870000-0x000000000690C000-memory.dmp
    Filesize

    624KB

  • memory/2916-7-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/2916-8-0x0000000005170000-0x0000000005180000-memory.dmp
    Filesize

    64KB

  • memory/2916-9-0x0000000005C80000-0x0000000005D12000-memory.dmp
    Filesize

    584KB

  • memory/2916-10-0x0000000005D40000-0x0000000005D4A000-memory.dmp
    Filesize

    40KB