Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/09/2024, 04:21

General

  • Target
    Q88_MT Carol 2024.09.10.doc.scr.exe
  • Size 706KB
  • Sample240910-eynvsswfrl
  • SHA256 10eed1464345d7548cbbe6e76ece440f249d9daf5bf13f973f68136d986c7fe5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    ftp

  • Host

    beirutrest.com

  • Port

    21

  • Password

    9yXQ39wz(uL+

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://beirutrest.com

  • Port

    21

  • Password

    9yXQ39wz(uL+

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.

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Q88_MT Carol 2024.09.10.doc.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\Q88_MT Carol 2024.09.10.doc.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2936
    • 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\Q88_MT Carol 2024.09.10.doc.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4528
    • C:\Users\Admin\AppData\Local\Temp\Q88_MT Carol 2024.09.10.doc.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\Q88_MT Carol 2024.09.10.doc.scr.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3016
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4288,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3756 /prefetch:8
    1⤵
      PID:388

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          Q88_MT Carol 2024.09.10.doc.scr.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Q88_MT Carol 2024.09.10.doc.scr.exe.log
          • Size 1KB
          • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_micr5sbz.bx3.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_micr5sbz.bx3.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          memory/2936-10-0x000000000A6D0000-0x000000000A76C000-memory.dmp

          memory/2936-15-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/2936-4-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/2936-5-0x0000000005440000-0x000000000544A000-memory.dmp

          memory/2936-6-0x0000000007FF0000-0x0000000008000000-memory.dmp

          memory/2936-7-0x000000007476E000-0x000000007476F000-memory.dmp

          memory/2936-8-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/2936-9-0x0000000008010000-0x0000000008092000-memory.dmp

          memory/2936-0-0x000000007476E000-0x000000007476F000-memory.dmp

          memory/2936-3-0x0000000005480000-0x0000000005512000-memory.dmp

          memory/2936-2-0x0000000005990000-0x0000000005F34000-memory.dmp

          memory/2936-1-0x0000000000AD0000-0x0000000000B86000-memory.dmp

          memory/3016-11-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/3016-63-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/3016-17-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/3016-54-0x0000000006E00000-0x0000000006E50000-memory.dmp

          memory/3016-14-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/3016-20-0x00000000054E0000-0x0000000005546000-memory.dmp

          memory/4528-23-0x0000000005AF0000-0x0000000005B12000-memory.dmp

          memory/4528-49-0x0000000007270000-0x0000000007313000-memory.dmp

          memory/4528-18-0x0000000005400000-0x0000000005A28000-memory.dmp

          memory/4528-29-0x0000000005B90000-0x0000000005BF6000-memory.dmp

          memory/4528-21-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/4528-34-0x0000000005CE0000-0x0000000006034000-memory.dmp

          memory/4528-35-0x0000000006260000-0x000000000627E000-memory.dmp

          memory/4528-36-0x00000000062A0000-0x00000000062EC000-memory.dmp

          memory/4528-37-0x0000000007230000-0x0000000007262000-memory.dmp

          memory/4528-38-0x00000000703E0000-0x000000007042C000-memory.dmp

          memory/4528-48-0x0000000006830000-0x000000000684E000-memory.dmp

          memory/4528-22-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/4528-50-0x0000000007BD0000-0x000000000824A000-memory.dmp

          memory/4528-51-0x0000000007590000-0x00000000075AA000-memory.dmp

          memory/4528-52-0x0000000007600000-0x000000000760A000-memory.dmp

          memory/4528-53-0x0000000007810000-0x00000000078A6000-memory.dmp

          memory/4528-19-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/4528-55-0x0000000007790000-0x00000000077A1000-memory.dmp

          memory/4528-56-0x00000000077E0000-0x00000000077EE000-memory.dmp

          memory/4528-57-0x00000000077F0000-0x0000000007804000-memory.dmp

          memory/4528-58-0x00000000078E0000-0x00000000078FA000-memory.dmp

          memory/4528-59-0x00000000078D0000-0x00000000078D8000-memory.dmp

          memory/4528-62-0x0000000074760000-0x0000000074F10000-memory.dmp

          memory/4528-16-0x0000000004C90000-0x0000000004CC6000-memory.dmp