Analysis

  • max time kernel
    135s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2024, 14:17

General

  • Target

    ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe

  • Size

    840KB

  • MD5

    b4e0d68cd11d3c370745b5bcfe981bd4

  • SHA1

    f62912f7cf77b9cdd34b31c0eebd73094a82ec57

  • SHA256

    ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61

  • SHA512

    04ee1aac52fac547a59cf1ec52dcab9138091eb27abbdd1bc5e9487f67c3870e334cdece880454a9b2548ad4dd8a32dfa5d092c8a8ad113b368fde0bbe460ddd

  • SSDEEP

    12288:fRx504bFtx504bFWxX5sDHmdMVly4kO/p/tpN1hNQhj2M+pWaohOtm7D/9O9wsoJ:Zw4bjw4bYrmHlXFm25W5OK1raBGdXV7

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Password: D4v_8+edvC?l. .

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe
    "C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1820
    • 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\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5016
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GffwxzSHmxg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1888
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GffwxzSHmxg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA299.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4572
    • C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe
      "C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
      2⤵
        PID:4360
      • C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe
        "C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
        2⤵
          PID:4368
        • C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe
          "C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
          2⤵
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1784

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        968cb9309758126772781b83adb8a28f

        SHA1

        8da30e71accf186b2ba11da1797cf67f8f78b47c

        SHA256

        92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

        SHA512

        4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        350f71bdb64de13ad45085c3cf0f381c

        SHA1

        5335f2d3aaacdbd43f8a455c1c7dc80170c8df5d

        SHA256

        a5620a32624cfa9df0bf565d2da57a5f4835d316463d78c9f8c600631677d363

        SHA512

        3fd46ccd37e988a4a7b7cfb909c7bd461fa83f74c7a3738b3cbcf089905c68a6d1e7cd628579f475c0b196d6a6ed337e76e4233c813fbfd498cca6c7239a4510

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dcyf2rl3.lpo.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpA299.tmp

        Filesize

        1KB

        MD5

        40f0a8e6557da177a89c4f5f19c1103e

        SHA1

        4f78daa5797543faf1d97e48764bf7fc9ddcea08

        SHA256

        f73a6d524e45d6c9d00f773d3062aa07bf091b226f876434531ab6dad3f86a71

        SHA512

        a39973ab5453918cd39d34ef0cdb2b82e9456ebbd6b6ce9086a3ca74881385e9cfc903da37d82e75515544f42f810ae86ef02bbbf7768932b64d4102efc7a85c

      • memory/1784-89-0x00000000065B0000-0x0000000006600000-memory.dmp

        Filesize

        320KB

      • memory/1784-36-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1820-8-0x0000000005BE0000-0x0000000005BF0000-memory.dmp

        Filesize

        64KB

      • memory/1820-3-0x0000000005A00000-0x0000000005A92000-memory.dmp

        Filesize

        584KB

      • memory/1820-46-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/1820-9-0x0000000006BE0000-0x0000000006C62000-memory.dmp

        Filesize

        520KB

      • memory/1820-6-0x0000000005CA0000-0x0000000005D3C000-memory.dmp

        Filesize

        624KB

      • memory/1820-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

        Filesize

        4KB

      • memory/1820-5-0x0000000005BB0000-0x0000000005BBA000-memory.dmp

        Filesize

        40KB

      • memory/1820-7-0x0000000005D90000-0x0000000005DAA000-memory.dmp

        Filesize

        104KB

      • memory/1820-1-0x0000000000F40000-0x0000000001016000-memory.dmp

        Filesize

        856KB

      • memory/1820-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

        Filesize

        5.6MB

      • memory/1820-4-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/1888-88-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/1888-75-0x0000000007410000-0x00000000074A6000-memory.dmp

        Filesize

        600KB

      • memory/1888-19-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/1888-18-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/1888-73-0x0000000007190000-0x00000000071AA000-memory.dmp

        Filesize

        104KB

      • memory/1888-78-0x00000000073D0000-0x00000000073E4000-memory.dmp

        Filesize

        80KB

      • memory/1888-76-0x0000000007390000-0x00000000073A1000-memory.dmp

        Filesize

        68KB

      • memory/1888-30-0x0000000005890000-0x0000000005BE4000-memory.dmp

        Filesize

        3.3MB

      • memory/1888-47-0x0000000005E70000-0x0000000005E8E000-memory.dmp

        Filesize

        120KB

      • memory/1888-48-0x0000000006400000-0x000000000644C000-memory.dmp

        Filesize

        304KB

      • memory/1888-49-0x0000000006480000-0x00000000064B2000-memory.dmp

        Filesize

        200KB

      • memory/1888-62-0x00000000070E0000-0x0000000007183000-memory.dmp

        Filesize

        652KB

      • memory/1888-74-0x0000000007200000-0x000000000720A000-memory.dmp

        Filesize

        40KB

      • memory/1888-60-0x00000000063D0000-0x00000000063EE000-memory.dmp

        Filesize

        120KB

      • memory/1888-50-0x0000000074D30000-0x0000000074D7C000-memory.dmp

        Filesize

        304KB

      • memory/1888-72-0x0000000007810000-0x0000000007E8A000-memory.dmp

        Filesize

        6.5MB

      • memory/5016-15-0x00000000050B0000-0x00000000056D8000-memory.dmp

        Filesize

        6.2MB

      • memory/5016-61-0x0000000074D30000-0x0000000074D7C000-memory.dmp

        Filesize

        304KB

      • memory/5016-21-0x0000000004E80000-0x0000000004EA2000-memory.dmp

        Filesize

        136KB

      • memory/5016-22-0x0000000004F20000-0x0000000004F86000-memory.dmp

        Filesize

        408KB

      • memory/5016-77-0x00000000073B0000-0x00000000073BE000-memory.dmp

        Filesize

        56KB

      • memory/5016-23-0x0000000004F90000-0x0000000004FF6000-memory.dmp

        Filesize

        408KB

      • memory/5016-79-0x00000000074C0000-0x00000000074DA000-memory.dmp

        Filesize

        104KB

      • memory/5016-80-0x00000000074A0000-0x00000000074A8000-memory.dmp

        Filesize

        32KB

      • memory/5016-24-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/5016-17-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/5016-16-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/5016-86-0x00000000744A0000-0x0000000074C50000-memory.dmp

        Filesize

        7.7MB

      • memory/5016-14-0x00000000025B0000-0x00000000025E6000-memory.dmp

        Filesize

        216KB