Overview

overview

10

Static

static

DST261234.exe

windows7_x64

10

DST261234.exe

windows10_x64

3

Analysis

  • max time kernel
    105s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    16-07-2020 10:09

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General

  • Target

    DST261234.exe

  • Size

    572KB

  • MD5

    a5375147434baba2a3eb32606e9931b5

  • SHA1

    aa1ef84f0918adb4682452221772eb6a61c3618b

  • SHA256

    24a00145d774f6aac5b11be0188c88f4b9485e626f464e94bb355db0e2ad0f93

  • SHA512

    a6f72a783c18f97e3fdaaef23b9634c8b15bf46d8b393cb87490d55de8fbb535724e04904881a98038cca1108c5ccf8b6d1fff32e345e502d9941c29910732c2

Score
10/10
agentteslaevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.blackpearl-tours.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    black@123instanbul

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
  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DST261234.exe
    "C:\Users\Admin\AppData\Local\Temp\DST261234.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FfsxUqNaghJe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B13.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1764
    • C:\Users\Admin\AppData\Local\Temp\DST261234.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:556

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/556-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/556-6-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/556-7-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

    Download