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Overview

overview

10

Static

static

Access Inv...py.exe

windows7_x64

10

Access Inv...py.exe

windows10_x64

3

Analysis

  • max time kernel
    142s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09/07/2020, 07:49

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General

  • Target

    Access Invoice and project copy.exe

  • Size

    534KB

  • MD5

    cb54bbaea939b4de45a411a856bd41a4

  • SHA1

    8d258de61f13b74d4fd426337c3de4f0794ca372

  • SHA256

    997de5ed7182657e00985a8b1e5f91656a8d7ad171c504780c5edbdda5fd5835

  • SHA512

    8fef11aea6d6cdff318e719dd3a5e2ebd48f3ca9db21c5bd5690e9f49bbda2d27f889a1955e53b5b276cc57178367acbef48715cb771748f23645e7bf6dac0e8

Score
10/10
agentteslaevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.startdrive.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    smithsteve222

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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Access Invoice and project copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Access Invoice and project copy.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Tshmlnhkcl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4AB5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:268
    • C:\Users\Admin\AppData\Local\Temp\Access Invoice and project copy.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/552-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/552-6-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/552-7-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download