Analysis

  • max time kernel
    93s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:40

General

  • Target

    rPU6Tej8gJmdkOy.exe

  • Size

    805KB

  • MD5

    d900a643563f70772677b6b76694e2c6

  • SHA1

    03e4f662e619d5e93dbc39c0d8d19963b32792dd

  • SHA256

    80d3f66ba9b603c7f90d3303718763b736e8cfa76f676ff4a57db67b96610dc6

  • SHA512

    b7bce0c39311d123cb1ca5d8275924b69d97b94aaee9db940d19b508f15dad87c241bfcc14671b628a203b5d41de784be92f449c4d4196f68625db6a013e747c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.iykesgroupco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Jc@ahzS7

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rPU6Tej8gJmdkOy.exe
    "C:\Users\Admin\AppData\Local\Temp\rPU6Tej8gJmdkOy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Users\Admin\AppData\Local\Temp\rPU6Tej8gJmdkOy.exe
      "C:\Users\Admin\AppData\Local\Temp\rPU6Tej8gJmdkOy.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4904

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4684-130-0x0000000000E60000-0x0000000000F30000-memory.dmp

    Filesize

    832KB

  • memory/4684-131-0x00000000058A0000-0x000000000593C000-memory.dmp

    Filesize

    624KB

  • memory/4684-132-0x0000000005F20000-0x00000000064C4000-memory.dmp

    Filesize

    5.6MB

  • memory/4684-133-0x0000000005A10000-0x0000000005AA2000-memory.dmp

    Filesize

    584KB

  • memory/4684-134-0x0000000005970000-0x000000000597A000-memory.dmp

    Filesize

    40KB

  • memory/4684-135-0x0000000005BE0000-0x0000000005C36000-memory.dmp

    Filesize

    344KB

  • memory/4904-136-0x0000000000000000-mapping.dmp

  • memory/4904-137-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/4904-138-0x0000000005940000-0x00000000059A6000-memory.dmp

    Filesize

    408KB

  • memory/4904-139-0x0000000006540000-0x0000000006590000-memory.dmp

    Filesize

    320KB