Analysis

  • max time kernel
    99s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    13-07-2020 15:13

General

  • Target

    Purchase Order No AAPL-PO-1179-1990.exe

  • Size

    538KB

  • MD5

    3a1635fd14ff9c17c0f65b8c393b9739

  • SHA1

    1f6e011d27ab1bbcfb5d57494610327bcf889aeb

  • SHA256

    e016bfbd170c4b15789abf7fa2ba30bec2bd785e2ec9b9fc759722833ed88a87

  • SHA512

    c37644c6b1ae9bd046d3a98733cd357051d632d926d408fbfc9a327668442b328be0aa5f56de5ebb416d772a1109c45f86aff90ab20c70bea3fd2641913f2211

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.aquariuslogistics.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    AQL@2019#$

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order No AAPL-PO-1179-1990.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order No AAPL-PO-1179-1990.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LvUfBoWgxd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C94.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1860
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
        3⤵
        • Modifies registry key
        PID:1508

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1C94.tmp

    MD5

    3073f740e8fe3f2b65537cf7980e474c

    SHA1

    4b1d555eb7234e3c5660275633843c10dafd280d

    SHA256

    9ad7d2d0faed823504525199712ccb9acea97d48e3d339186e56b4ce489b3834

    SHA512

    8471ad230ea88c428696c5b919df7a42293f60bbf14194d0579151997c1354291d0e6f41c89340d855e9fae114af63283cb17763eb5e5fcbd0d3335055d4cdaa

  • memory/1500-1-0x0000000000000000-0x0000000000000000-disk.dmp

  • memory/1508-8-0x0000000000000000-mapping.dmp

  • memory/1860-2-0x0000000000000000-mapping.dmp

  • memory/1884-4-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB

  • memory/1884-5-0x00000000004472EE-mapping.dmp

  • memory/1884-6-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB

  • memory/1884-7-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB