Overview

overview

10

Static

static

gunzipped.exe

windows7_x64

10

gunzipped.exe

windows10_x64

3

Analysis

  • max time kernel
    145s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    10-07-2020 07:35

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General

  • Target

    gunzipped.exe

  • Size

    546KB

  • MD5

    da020d0c54734d21d96efd3b05cafc0b

  • SHA1

    1ef4a1601984ed3eeffcaa15ecaec7ded28f7ebd

  • SHA256

    0a8a4c3e09dd9ea5652a1388c395ed0707e6e2c370fa0fa288f71da425022464

  • SHA512

    233816b405f65db45ef67ddac66e16746d341ebd53c6ab289f5ef19ded128eb82631cf2f6a9593771a71bdf564a2c667b4088cba43524c480ce6ba6ad2c352b9

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:676
    • C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1768

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/676-1-0x0000000000000000-0x0000000000000000-disk.dmp

    Download

  • memory/1768-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/1768-3-0x0000000000446FCE-mapping.dmp

    Download

  • memory/1768-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/1768-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download