Analysis

  • max time kernel
    130s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 07:12

General

  • Target

    Purchase order.exe

  • Size

    1.5MB

  • MD5

    fb3ad7e9cb5938ad1af8facf52693b27

  • SHA1

    4a45c5429a503e8730ebc5261441e91b963510d1

  • SHA256

    d5d6f7922d87a58322e5d4ace6819497d0942b3b22dc10c52f5a37cad8e42793

  • SHA512

    bf4dd0c6a664e3e4b3fd584a5bc11d55fd874eabceee066f78ea5eb6ce0ab25fb08732cb1eb8baa96beae173474ff4f761b453a8e8544171e16703b1acbf1b60

  • SSDEEP

    24576:8IFcjHUVcxTE59dcvuc8kXeRYPps4GY4a9qJVX8ScEhAs3PseK0dHosEfzbm:8IFczdarcW/hySXYh9UPvhAKPFFOsw

Malware Config

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 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 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 3 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4544
    • 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\Purchase order.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4480
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eouOCEx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3384
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eouOCEx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE55.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3172
    • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
      2⤵
        PID:4536
      • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
        2⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1136
        • 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\Purchase order.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2708
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wlBldyvi.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1804
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlBldyvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3498.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3536
        • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
          "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
          3⤵
            PID:3444
          • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
            "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2904

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • 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

        104B

        MD5

        c4f45b97f1c9eb1181dfe25fb59f8d41

        SHA1

        aba2ce94bc49187964369a49e747da251e14d16f

        SHA256

        9fd0a73378b6067f58befcb0da742e049ab3bd920252a20e80faab9d9c386d5e

        SHA512

        bd98aca4d6e50627c12f57d807cad881f63a656de586c9bb9a87b43a97ff4a0a608fa2e2c10eb3d4f6d272198447fe13dbb1bfffaa01ce06fbd4ad94cf691b31

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

        Filesize

        18KB

        MD5

        12f5664f475dc26cc95fe5a995e0df9c

        SHA1

        b760fba62e663f03c7c7af19c6de50ddb369a816

        SHA256

        d0324dcfc516137b6914d1a52fe674a5e38f66220c9f562a76a9d85fba6a3e0f

        SHA512

        beca1ab85ad5b53ce7ff91db045e048374c4f46eb3e2d99e02fea27db71d8dceb0638efaf781e3c43225de9f3bce14789b059a127b713e162fc7cb35ff914ded

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cv2twbhh.0xr.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp3498.tmp

        Filesize

        1KB

        MD5

        fd3329481114c98906137cdb0ea11b4e

        SHA1

        3a1944fc80f1b39f6f1b5eaf28da9454ba18616c

        SHA256

        ec4fe23ce35f6400ca1a2db29d1df5e324a6d64bbe1ca95c5b7ce36654a598f9

        SHA512

        37d84b1cb89d8946d3869b4689657a55dd8b6e716634753e531b1982a9d5973d4e6c4ecfb4664de3ff867645362ae5779a125d0f62b5019f5d909fe69801b111

      • C:\Users\Admin\AppData\Local\Temp\tmpFE55.tmp

        Filesize

        1KB

        MD5

        0ebb5f9efff9dd67f6eac4f28e138b8a

        SHA1

        f95271242434961b32bc0154a7a3de0becf053ae

        SHA256

        d127048d6794dd236a15c439b4d748cff70ef114c302e9b883b9e170b4514bb7

        SHA512

        1b3b05dcfb123d0ceb0d3d24669ac9c5cd2e830ab68c496e2ab14a0265a9d7554533ad9d74513d05e76102b0f459f313b5229d3c824203bddbebbcefa7a6bf55

      • C:\Users\Admin\AppData\Roaming\wlBldyvi.exe

        Filesize

        1.5MB

        MD5

        fb3ad7e9cb5938ad1af8facf52693b27

        SHA1

        4a45c5429a503e8730ebc5261441e91b963510d1

        SHA256

        d5d6f7922d87a58322e5d4ace6819497d0942b3b22dc10c52f5a37cad8e42793

        SHA512

        bf4dd0c6a664e3e4b3fd584a5bc11d55fd874eabceee066f78ea5eb6ce0ab25fb08732cb1eb8baa96beae173474ff4f761b453a8e8544171e16703b1acbf1b60

      • memory/1136-46-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/1136-53-0x0000000005980000-0x0000000005990000-memory.dmp

        Filesize

        64KB

      • memory/1136-52-0x0000000006FF0000-0x0000000007090000-memory.dmp

        Filesize

        640KB

      • memory/1136-93-0x0000000007350000-0x00000000073D2000-memory.dmp

        Filesize

        520KB

      • memory/1804-99-0x0000000005A40000-0x0000000005D94000-memory.dmp

        Filesize

        3.3MB

      • memory/1804-120-0x00000000062F0000-0x000000000633C000-memory.dmp

        Filesize

        304KB

      • memory/1804-121-0x00000000719C0000-0x0000000071A0C000-memory.dmp

        Filesize

        304KB

      • memory/1804-131-0x00000000072F0000-0x0000000007393000-memory.dmp

        Filesize

        652KB

      • memory/1804-142-0x0000000007800000-0x0000000007811000-memory.dmp

        Filesize

        68KB

      • memory/1804-143-0x0000000007830000-0x0000000007844000-memory.dmp

        Filesize

        80KB

      • memory/2708-132-0x00000000719C0000-0x0000000071A0C000-memory.dmp

        Filesize

        304KB

      • memory/2904-118-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2904-147-0x0000000006BB0000-0x0000000006C00000-memory.dmp

        Filesize

        320KB

      • memory/3384-85-0x0000000007B60000-0x0000000007B68000-memory.dmp

        Filesize

        32KB

      • memory/3384-54-0x0000000006AE0000-0x0000000006B12000-memory.dmp

        Filesize

        200KB

      • memory/3384-45-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-91-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-24-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-66-0x00000000076F0000-0x0000000007793000-memory.dmp

        Filesize

        652KB

      • memory/3384-25-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-50-0x0000000006510000-0x000000000652E000-memory.dmp

        Filesize

        120KB

      • memory/3384-51-0x00000000069D0000-0x0000000006A1C000-memory.dmp

        Filesize

        304KB

      • memory/3384-65-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

        Filesize

        120KB

      • memory/3384-55-0x0000000075B10000-0x0000000075B5C000-memory.dmp

        Filesize

        304KB

      • memory/4480-82-0x00000000076F0000-0x00000000076FE000-memory.dmp

        Filesize

        56KB

      • memory/4480-17-0x0000000005320000-0x0000000005948000-memory.dmp

        Filesize

        6.2MB

      • memory/4480-20-0x00000000050D0000-0x00000000050F2000-memory.dmp

        Filesize

        136KB

      • memory/4480-15-0x00000000028A0000-0x00000000028D6000-memory.dmp

        Filesize

        216KB

      • memory/4480-67-0x0000000075B10000-0x0000000075B5C000-memory.dmp

        Filesize

        304KB

      • memory/4480-77-0x0000000007B10000-0x000000000818A000-memory.dmp

        Filesize

        6.5MB

      • memory/4480-78-0x00000000074C0000-0x00000000074DA000-memory.dmp

        Filesize

        104KB

      • memory/4480-79-0x0000000007540000-0x000000000754A000-memory.dmp

        Filesize

        40KB

      • memory/4480-80-0x0000000007740000-0x00000000077D6000-memory.dmp

        Filesize

        600KB

      • memory/4480-81-0x00000000076C0000-0x00000000076D1000-memory.dmp

        Filesize

        68KB

      • memory/4480-26-0x0000000005A50000-0x0000000005DA4000-memory.dmp

        Filesize

        3.3MB

      • memory/4480-83-0x0000000007700000-0x0000000007714000-memory.dmp

        Filesize

        80KB

      • memory/4480-84-0x0000000007800000-0x000000000781A000-memory.dmp

        Filesize

        104KB

      • memory/4480-16-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4480-19-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4480-22-0x00000000051E0000-0x0000000005246000-memory.dmp

        Filesize

        408KB

      • memory/4480-92-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4480-21-0x0000000005170000-0x00000000051D6000-memory.dmp

        Filesize

        408KB

      • memory/4480-18-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4544-0-0x000000007528E000-0x000000007528F000-memory.dmp

        Filesize

        4KB

      • memory/4544-49-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4544-10-0x000000000ABC0000-0x000000000AC5C000-memory.dmp

        Filesize

        624KB

      • memory/4544-9-0x0000000008340000-0x0000000008456000-memory.dmp

        Filesize

        1.1MB

      • memory/4544-8-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4544-7-0x000000007528E000-0x000000007528F000-memory.dmp

        Filesize

        4KB

      • memory/4544-6-0x0000000007CD0000-0x0000000007CE2000-memory.dmp

        Filesize

        72KB

      • memory/4544-5-0x0000000005190000-0x000000000519A000-memory.dmp

        Filesize

        40KB

      • memory/4544-4-0x0000000075280000-0x0000000075A30000-memory.dmp

        Filesize

        7.7MB

      • memory/4544-3-0x0000000005000000-0x0000000005092000-memory.dmp

        Filesize

        584KB

      • memory/4544-2-0x00000000054D0000-0x0000000005A74000-memory.dmp

        Filesize

        5.6MB

      • memory/4544-1-0x0000000000470000-0x00000000005F2000-memory.dmp

        Filesize

        1.5MB