Analysis

  • max time kernel
    121s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-09-2024 01:10

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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 50 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:632
    • 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:2980
    • 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:2200
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eouOCEx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE95.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2476
    • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
      2⤵
        PID:2624
      • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
        2⤵
          PID:1048
        • 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 use of WriteProcessMemory
          PID:2732
          • 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:792
          • 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:1512
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlBldyvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF74.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:992
          • 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:1828

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpCE95.tmp

        Filesize

        1KB

        MD5

        e5b5e50cac91a76e0cba25e0ab4562cf

        SHA1

        83011e5686d254146e7d5beefacdfde20f503a35

        SHA256

        3643fc3d44069e9077921625318c12bd31f67ad82d5a73fb58990d2a7f8e8066

        SHA512

        d3665959ae94257e6627347c7dab9828bd7dcb572e6548dbf11520a544f21fc8992c0def6a04188c675e187f63391cda856ad97a129fc465627d02ba8385138c

      • C:\Users\Admin\AppData\Local\Temp\tmpFF74.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

        7d0abfe2f9792ef66d815e6d3d34a597

        SHA1

        6f23637901c18670795c26efaa12fd445db9a298

        SHA256

        4c948b2b3fe4c633ca475318a5184122974816f2fd7cff0ce45cdb9ee66f4fff

        SHA512

        e41836a6800662f715d66bf38d576e25e7b4e33e9f9ca4aecefba6898ce11c1b5a5c1bdaab2b9ff75bc39e14e62f4b935672990abec6bf80e9b2fc48098f7cef

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

        Filesize

        1.5MB

        MD5

        fb3ad7e9cb5938ad1af8facf52693b27

        SHA1

        4a45c5429a503e8730ebc5261441e91b963510d1

        SHA256

        d5d6f7922d87a58322e5d4ace6819497d0942b3b22dc10c52f5a37cad8e42793

        SHA512

        bf4dd0c6a664e3e4b3fd584a5bc11d55fd874eabceee066f78ea5eb6ce0ab25fb08732cb1eb8baa96beae173474ff4f761b453a8e8544171e16703b1acbf1b60

      • memory/632-1-0x00000000000C0000-0x0000000000242000-memory.dmp

        Filesize

        1.5MB

      • memory/632-5-0x0000000074C60000-0x000000007534E000-memory.dmp

        Filesize

        6.9MB

      • memory/632-6-0x0000000007FD0000-0x00000000080E6000-memory.dmp

        Filesize

        1.1MB

      • memory/632-3-0x0000000000420000-0x0000000000432000-memory.dmp

        Filesize

        72KB

      • memory/632-2-0x0000000074C60000-0x000000007534E000-memory.dmp

        Filesize

        6.9MB

      • memory/632-4-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

        Filesize

        4KB

      • memory/632-34-0x0000000074C60000-0x000000007534E000-memory.dmp

        Filesize

        6.9MB

      • memory/632-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

        Filesize

        4KB

      • memory/1828-51-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1828-55-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1828-58-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1828-61-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1828-59-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1828-53-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1828-49-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2732-28-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/2732-35-0x0000000005000000-0x0000000005082000-memory.dmp

        Filesize

        520KB

      • memory/2732-19-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/2732-29-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/2732-21-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/2732-23-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/2732-25-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/2732-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2732-32-0x0000000004B30000-0x0000000004BD0000-memory.dmp

        Filesize

        640KB

      • memory/2732-33-0x0000000000620000-0x0000000000630000-memory.dmp

        Filesize

        64KB

      • memory/2732-31-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB