Overview

overview

10

Static

static

gunzipped.exe

windows7_x64

10

gunzipped.exe

windows10_x64

3

Analysis

  • max time kernel
    117s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    16-07-2020 08:00

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General

  • Target

    gunzipped.exe

  • Size

    565KB

  • MD5

    d1c3278d317750fbd5a9dcae7de2e27c

  • SHA1

    b7815150d40c9caaed7ff338b3f2864b3ade1a2f

  • SHA256

    1585d935d47ff234d4b9a71e4f30d0731677d06f430894496c58153011bb90b7

  • SHA512

    c1b57af1776c54dd24c1fa8009bef08a79e6e82112985685d6a1fa4a1988783d1ab450c4ba1e13e25ea55d5cc7298b056a05ed7520ea5ed57058b9b47bb78c34

Score
10/10
agentteslaevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.elittacop.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @eaSYuc8

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 4 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

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

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

    spyware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
    "C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:284
    • C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1780

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1780-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/1780-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/1780-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download