Analysis

  • max time kernel
    96s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13-07-2020 08:13

General

  • Target

    tt copy.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\tt copy.exe
    "C:\Users\Admin\AppData\Local\Temp\tt copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LvUfBoWgxd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB5F5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1436
    • 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:1616
      • 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:1880

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1616-4-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB

  • memory/1616-6-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB

  • memory/1616-7-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB