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Analysis

  • max time kernel
    128s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    14/01/2025, 01:42

General

  • Target

    2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff.exe

  • Size

    1.8MB

  • MD5

    99a7c93892a5ec6e10742e1832e720e4

  • SHA1

    381eb392b5022c8d44f2fecc85459ebe832bd466

  • SHA256

    2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff

  • SHA512

    938b216a629c5b52ae0befc64fb6cbaf30b2bc70b6f0a1b2844311300955f146e55ea9e9bb32b71cb3e8b9118ae75c55851ecaf3e4c81807028a65d2d4bd7f88

  • SSDEEP

    49152:fufdsXNUlyw0EYJhMIO3Fu859l/DrjLoyEkmZ9Y14:fb9Uww0ECqYul/EA

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.huiijingco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    lNLUrZT2

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 5 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 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.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff.exe
    "C:\Users\Admin\AppData\Local\Temp\2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3020
    • C:\Users\Admin\AppData\Local\Temp\2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff.exe
      "C:\Users\Admin\AppData\Local\Temp\2f4751772925ed46b5a66bb9fdd4d5d061b8d062f6f664f38b69070c171878ff.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2224

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2108-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

    Filesize

    4KB

  • memory/2108-1-0x0000000000B30000-0x0000000000CFE000-memory.dmp

    Filesize

    1.8MB

  • memory/2108-2-0x0000000074D40000-0x000000007542E000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-3-0x0000000000680000-0x0000000000690000-memory.dmp

    Filesize

    64KB

  • memory/2108-4-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

    Filesize

    4KB

  • memory/2108-5-0x0000000074D40000-0x000000007542E000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-6-0x0000000005810000-0x000000000593E000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-22-0x0000000074D40000-0x000000007542E000-memory.dmp

    Filesize

    6.9MB

  • memory/2224-21-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-19-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-18-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-15-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-11-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-9-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2224-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB