Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/09/2024, 13:57

General

  • Target

    05092024_1357_05092024_PI_230524.rtf

  • Size

    675KB

  • MD5

    e95d774d12e3ffc8cebcbf895e174f7f

  • SHA1

    1bb43bc659153b1486c81441cb6b852fea2f73f5

  • SHA256

    6f9c338998bd331f4d59661d3a68c80f21934e35332996d8a194c61552e5da45

  • SHA512

    b4e2d2bf428d7a6e922f6b8990378071903f899fa9cc554b7daab338d57c021397d016a38a469d7f59dce26e764af514849876e454bef9d50fe8b6292c6ceb97

  • SSDEEP

    6144:FwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAR:v

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\05092024_1357_05092024_PI_230524.rtf"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2892
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1808
      • C:\Users\Admin\AppData\Roaming\yevmplug86820.exe
        "C:\Users\Admin\AppData\Roaming\yevmplug86820.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yevmplug86820.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1832
        • C:\Users\Admin\AppData\Roaming\yevmplug86820.exe
          "C:\Users\Admin\AppData\Roaming\yevmplug86820.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2960

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      19KB

      MD5

      395552569be77adcde776e11bf2c43bc

      SHA1

      78f3ce09bc99a102a1e3d9a7d216b1f48f964e98

      SHA256

      fcbe55cd1e4184c80a87e8cd5a4d5fb093bfe1f7c74b9afeb0f22efe2e70bb87

      SHA512

      0dfa732b9c67206a7fe8a2910ab5a84910754f8ba80ceafb1a932a3a98bc745e64fcb358162def355b62cb2a45d30213a3449800c28a94ccd9cf4c99142f2a66

    • \Users\Admin\AppData\Roaming\yevmplug86820.exe

      Filesize

      746KB

      MD5

      69da125c06780ec4ad9417e884ff94ff

      SHA1

      e85221ba52679d3bcf853cf30139b28ec1c83310

      SHA256

      185f917832ca4dd37d1275969de107ffd07f055f01041e321a980d96c646dff8

      SHA512

      2086d891d681208e28a0225335e610b9ff2c9117fde3d6627ae6d7170879c7a4103d12cc3ef56a94f3bf65f9c76d9359d8d2123d7392a999fc726f8496f7fddc

    • memory/1736-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1736-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1736-2-0x0000000070E4D000-0x0000000070E58000-memory.dmp

      Filesize

      44KB

    • memory/1736-16-0x0000000070E4D000-0x0000000070E58000-memory.dmp

      Filesize

      44KB

    • memory/1736-0-0x000000002FBD1000-0x000000002FBD2000-memory.dmp

      Filesize

      4KB

    • memory/2748-14-0x0000000000B20000-0x0000000000BDE000-memory.dmp

      Filesize

      760KB

    • memory/2748-15-0x00000000009A0000-0x00000000009B8000-memory.dmp

      Filesize

      96KB

    • memory/2748-17-0x00000000056E0000-0x0000000005762000-memory.dmp

      Filesize

      520KB

    • memory/2960-31-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2960-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2960-24-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2960-22-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2960-20-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2960-18-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2960-27-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2960-29-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB