Analysis

  • max time kernel
    119s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2024 07:22

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.

  • 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 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2692
    • 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:1740
    • 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:2796
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eouOCEx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C57.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2108
    • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
      2⤵
        PID:2016
      • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
        2⤵
          PID:2816
        • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
          "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
          2⤵
            PID:1612
          • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
            "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
            2⤵
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2604
            • 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:2940
            • 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:2880
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlBldyvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4CB9.tmp"
              3⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2644
            • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
              "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
              3⤵
                PID:1688
              • 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:1876

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmp1C57.tmp

            Filesize

            1KB

            MD5

            e5b5e50cac91a76e0cba25e0ab4562cf

            SHA1

            83011e5686d254146e7d5beefacdfde20f503a35

            SHA256

            3643fc3d44069e9077921625318c12bd31f67ad82d5a73fb58990d2a7f8e8066

            SHA512

            d3665959ae94257e6627347c7dab9828bd7dcb572e6548dbf11520a544f21fc8992c0def6a04188c675e187f63391cda856ad97a129fc465627d02ba8385138c

          • C:\Users\Admin\AppData\Local\Temp\tmp4CB9.tmp

            Filesize

            1KB

            MD5

            592d3f1d9c10d406b5b39b7f9024baa6

            SHA1

            f7c3a5e36aa55329144b05107f6c2f2183cb2678

            SHA256

            ab86a22df7dc190ff70a7b9ab15707e029b4fa926b6273ccd1e4f042fbaadfd0

            SHA512

            c3822b8348b9b1c26ba375bfbcf703ec4967ebf9fbb4823d27b39061f12df59585fc474ac25e9638fa28b720f0af028fd889659d7482dfe46cba8bca63c9480d

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

            Filesize

            7KB

            MD5

            04b47962a289661d575c2996d2edff09

            SHA1

            7c7627e19999ba4e39e195a03610e7aeb211adba

            SHA256

            6be7820b37728dbb4ac3ad12b5fccf4bc70db1562d46a195858e53ee13412fcd

            SHA512

            48628537e713595da0d57f6b63bc1f97c5a051b337a7bfbeaad081572b3a97c22b21d89295224576c8f430e3929e7f43f7772c31c9064617f9007818a707f274

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

            Filesize

            1.5MB

            MD5

            fb3ad7e9cb5938ad1af8facf52693b27

            SHA1

            4a45c5429a503e8730ebc5261441e91b963510d1

            SHA256

            d5d6f7922d87a58322e5d4ace6819497d0942b3b22dc10c52f5a37cad8e42793

            SHA512

            bf4dd0c6a664e3e4b3fd584a5bc11d55fd874eabceee066f78ea5eb6ce0ab25fb08732cb1eb8baa96beae173474ff4f761b453a8e8544171e16703b1acbf1b60

          • memory/1876-62-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1876-51-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1876-53-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1876-55-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1876-57-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1876-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/1876-60-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1876-61-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2604-23-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2604-32-0x0000000004E80000-0x0000000004F20000-memory.dmp

            Filesize

            640KB

          • memory/2604-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2604-25-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2604-33-0x0000000000740000-0x0000000000750000-memory.dmp

            Filesize

            64KB

          • memory/2604-21-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2604-19-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2604-28-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2604-35-0x00000000053D0000-0x0000000005452000-memory.dmp

            Filesize

            520KB

          • memory/2604-31-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2604-29-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2692-1-0x00000000001C0000-0x0000000000342000-memory.dmp

            Filesize

            1.5MB

          • memory/2692-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

            Filesize

            4KB

          • memory/2692-34-0x00000000748E0000-0x0000000074FCE000-memory.dmp

            Filesize

            6.9MB

          • memory/2692-4-0x00000000748EE000-0x00000000748EF000-memory.dmp

            Filesize

            4KB

          • memory/2692-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

            Filesize

            6.9MB

          • memory/2692-3-0x0000000000580000-0x0000000000592000-memory.dmp

            Filesize

            72KB

          • memory/2692-6-0x0000000007F70000-0x0000000008086000-memory.dmp

            Filesize

            1.1MB

          • memory/2692-5-0x00000000748E0000-0x0000000074FCE000-memory.dmp

            Filesize

            6.9MB