Analysis

  • max time kernel
    77s
  • max time network
    84s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250217-en
  • resource tags

    arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/02/2025, 23:44

General

  • Target

    PW Loader.exe

  • Size

    354KB

  • MD5

    638ded3b1d340c2a35f1891759e11d3b

  • SHA1

    e290bb38e046a6d2ceef5632f1c1ab1fefde4d93

  • SHA256

    d46c7ba651d37e8e51e062320fa860fc7aa69b5ab142a91d614bf61a64b8f9eb

  • SHA512

    b8e61d0b992e887abc87f20b8ed7bff65801e9b9288a2ed296e4f4e2e3e1f0192c9b74a831a0d59814de222e73e358a14b2ae623ac5dd61d896b0445f7a21ab2

  • SSDEEP

    6144:/0XQ1m1ii5mwp+wR0O+VbL68KadaT6Cwfn/7NIY/Y+nNK2UX+8+Hxr:/0XQ1XQUweNbLBKa8T6CS/JaXJ+Hxr

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Nanocore family
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Obfuscated Files or Information: Command Obfuscation 1 TTPs

    Adversaries may obfuscate content during command execution to impede detection.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 6 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • 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: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\PW Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\PW Loader.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4916
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGEAegBpACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHkAbQB0ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGcAZwBlACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAG0AegB0ACMAPgA="
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4564
    • C:\Windows\PW.exe
      "C:\Windows\PW.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:460
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks.exe" /create /f /tn "NAT Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7B3B.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2644
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks.exe" /create /f /tn "NAT Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7BC8.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1020
    • C:\Users\Admin\AppData\Local\Temp\Loader.exe
      "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Windows\system32\cmd.exe
        "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\77B0.tmp\77B1.tmp\77B2.bat C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2384
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c echo prompt $E | cmd
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:668
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" echo prompt $E "
            5⤵
              PID:728
            • C:\Windows\system32\cmd.exe
              cmd
              5⤵
                PID:1908
            • C:\Windows\system32\chcp.com
              chcp 65001
              4⤵
                PID:5908
              • C:\Windows\system32\mode.com
                mode 76, 30
                4⤵
                  PID:340
                • C:\Windows\system32\timeout.exe
                  timeout /t 1 /nobreak
                  4⤵
                  • Delays execution with timeout.exe
                  PID:3500
                • C:\Windows\system32\timeout.exe
                  timeout /t 1 /nobreak
                  4⤵
                  • Delays execution with timeout.exe
                  PID:5596
                • C:\Windows\system32\PING.EXE
                  ping /n 1 /w 400 localhost
                  4⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1888
                • C:\Windows\system32\timeout.exe
                  timeout /t 5 /nobreak
                  4⤵
                  • Delays execution with timeout.exe
                  PID:2216
                • C:\Windows\system32\timeout.exe
                  timeout /t 1 /nobreak
                  4⤵
                  • Delays execution with timeout.exe
                  PID:1972
                • C:\Windows\system32\timeout.exe
                  timeout /t 5 /nobreak
                  4⤵
                  • Delays execution with timeout.exe
                  PID:5552
                • C:\Windows\system32\timeout.exe
                  timeout /t 1 /nobreak
                  4⤵
                  • Delays execution with timeout.exe
                  PID:2408
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
            1⤵
              PID:5332
            • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
              "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Desktop\RevokeAdd.odt"
              1⤵
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious use of SetWindowsHookEx
              PID:4496

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\77B0.tmp\77B1.tmp\77B2.bat

              Filesize

              873B

              MD5

              566e6a066b92cfebc3d0335e4040cb4e

              SHA1

              46d51fafe54222520870b8b0152ec21171c9b74d

              SHA256

              32ae4d96a660d1a0e4383d7b589a581d0c6cd20727cf918c787fa695f2820a0e

              SHA512

              c9f8d55845368226163c605c44ce47f92dea81d4d40dfdd317ffb67a0175de1cd9ccd74285fac940974be7bf41642055a79775baae3f766df323c142f8eca556

            • C:\Users\Admin\AppData\Local\Temp\Loader.exe

              Filesize

              117KB

              MD5

              02d696883a7203cc4751705c59bc1e2a

              SHA1

              2ab1c8e52cee860f41342949d9b7cf8d2f1011d9

              SHA256

              5ca70c26ef954b416ca7f7419f8291a5db7db3523139126e5a8e07d3a33ca72c

              SHA512

              0dc4c42e406783946ec279c037c7141839c73cf080e834a12abc3ac4e016af8bc52b712affd539693ddc5f40f3231ac983a9e3c3db5bc4aefadacad2a8efc6bf

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vxc1fuzn.e3m.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Local\Temp\tmp7B3B.tmp

              Filesize

              1KB

              MD5

              2ffead7bac45fb92c7e7fdd337c3d07d

              SHA1

              cf1335a23b061148d12ab7297b09bc9a028a0e3d

              SHA256

              08f809f86780ba005342a9cbb3ae9a54a3c151a0b494cbcd59fcc53903e705d6

              SHA512

              0f9d3da64b85770e1e8e383071b42d193cd24e2f4e1693a7f4ce98a1e0c92a175c683f69b9ff727abad6161f5ece39f0ea2caa098e24314256a90864192ac178

            • C:\Users\Admin\AppData\Local\Temp\tmp7BC8.tmp

              Filesize

              1KB

              MD5

              16219782372582f33c19b9446de6f6ca

              SHA1

              3c5c4f552d68a85129d5dde39780bf56ca224eee

              SHA256

              ae4a9f930155d196a9430d9aba6fa85094c566b8fdd855f173ada3daea0f0f8d

              SHA512

              75c290c7c29a86258ee146a8781b1caa1d7c66ddd799a8cbabc29f0edaa6e586bdc8702f7e522f599fc9de0c1423f796df6736daf699a857bc8a61e8d5754ad4

            • C:\Windows\PW.exe

              Filesize

              203KB

              MD5

              b2f82753cb0f4d065662b530924bb50c

              SHA1

              631f130194792d63f7fa75451eb3175422d93af8

              SHA256

              8b4cda9baec878f1dd69acf5e3fe33ef80b4ba84856e6416be9a0f40028329a4

              SHA512

              1c120dd4ae8aed29692ded0fc7099fff5a26a1a26b7d1ebd00af325e5e9617b933419ecd9407ef5dec35482bc9809df1ace9ed482dc9c260f6a6eb0ff5e46466

            • memory/460-76-0x000000001C750000-0x000000001C76A000-memory.dmp

              Filesize

              104KB

            • memory/460-85-0x000000001CB40000-0x000000001CB6E000-memory.dmp

              Filesize

              184KB

            • memory/460-77-0x000000001BEA0000-0x000000001BEAE000-memory.dmp

              Filesize

              56KB

            • memory/460-25-0x000000001B600000-0x000000001BACE000-memory.dmp

              Filesize

              4.8MB

            • memory/460-79-0x000000001C770000-0x000000001C77C000-memory.dmp

              Filesize

              48KB

            • memory/460-26-0x000000001B040000-0x000000001B0DC000-memory.dmp

              Filesize

              624KB

            • memory/460-27-0x000000001BC80000-0x000000001BD26000-memory.dmp

              Filesize

              664KB

            • memory/460-75-0x000000001BD80000-0x000000001BD92000-memory.dmp

              Filesize

              72KB

            • memory/460-78-0x000000001C4C0000-0x000000001C4D2000-memory.dmp

              Filesize

              72KB

            • memory/460-18-0x00007FFE133A5000-0x00007FFE133A6000-memory.dmp

              Filesize

              4KB

            • memory/460-17-0x0000000000A10000-0x0000000000A20000-memory.dmp

              Filesize

              64KB

            • memory/460-81-0x000000001CB30000-0x000000001CB44000-memory.dmp

              Filesize

              80KB

            • memory/460-40-0x0000000000BC0000-0x0000000000BC8000-memory.dmp

              Filesize

              32KB

            • memory/460-82-0x0000000000BB0000-0x0000000000BC0000-memory.dmp

              Filesize

              64KB

            • memory/460-86-0x000000001CAF0000-0x000000001CB04000-memory.dmp

              Filesize

              80KB

            • memory/460-80-0x000000001CB10000-0x000000001CB1E000-memory.dmp

              Filesize

              56KB

            • memory/460-15-0x00007FFE133A5000-0x00007FFE133A6000-memory.dmp

              Filesize

              4KB

            • memory/460-50-0x000000001C540000-0x000000001C54A000-memory.dmp

              Filesize

              40KB

            • memory/460-51-0x000000001C780000-0x000000001C79E000-memory.dmp

              Filesize

              120KB

            • memory/460-52-0x000000001C4D0000-0x000000001C4DA000-memory.dmp

              Filesize

              40KB

            • memory/460-84-0x000000001BD60000-0x000000001BD6E000-memory.dmp

              Filesize

              56KB

            • memory/460-83-0x000000001B0F0000-0x000000001B104000-memory.dmp

              Filesize

              80KB

            • memory/460-93-0x0000000000A10000-0x0000000000A20000-memory.dmp

              Filesize

              64KB

            • memory/460-92-0x00007FFE133A5000-0x00007FFE133A6000-memory.dmp

              Filesize

              4KB

            • memory/460-91-0x000000001D6A0000-0x000000001D702000-memory.dmp

              Filesize

              392KB

            • memory/4496-123-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-94-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-96-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-95-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-97-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-98-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-99-0x00007FFDF1480000-0x00007FFDF1490000-memory.dmp

              Filesize

              64KB

            • memory/4496-100-0x00007FFDF1480000-0x00007FFDF1490000-memory.dmp

              Filesize

              64KB

            • memory/4496-126-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-125-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4496-124-0x00007FFDF3EB0000-0x00007FFDF3EC0000-memory.dmp

              Filesize

              64KB

            • memory/4564-29-0x0000000006080000-0x00000000060E6000-memory.dmp

              Filesize

              408KB

            • memory/4564-73-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

              Filesize

              104KB

            • memory/4564-72-0x0000000007BD0000-0x0000000007BE5000-memory.dmp

              Filesize

              84KB

            • memory/4564-71-0x0000000007BC0000-0x0000000007BCE000-memory.dmp

              Filesize

              56KB

            • memory/4564-70-0x0000000007B80000-0x0000000007B91000-memory.dmp

              Filesize

              68KB

            • memory/4564-69-0x0000000007C00000-0x0000000007C96000-memory.dmp

              Filesize

              600KB

            • memory/4564-68-0x0000000007A00000-0x0000000007A0A000-memory.dmp

              Filesize

              40KB

            • memory/4564-67-0x0000000007970000-0x000000000798A000-memory.dmp

              Filesize

              104KB

            • memory/4564-87-0x0000000007CB0000-0x0000000007CB8000-memory.dmp

              Filesize

              32KB

            • memory/4564-66-0x0000000007FB0000-0x000000000862A000-memory.dmp

              Filesize

              6.5MB

            • memory/4564-64-0x0000000007630000-0x00000000076D4000-memory.dmp

              Filesize

              656KB

            • memory/4564-63-0x0000000007600000-0x000000000761E000-memory.dmp

              Filesize

              120KB

            • memory/4564-53-0x00000000075A0000-0x00000000075D4000-memory.dmp

              Filesize

              208KB

            • memory/4564-54-0x0000000074D60000-0x0000000074DAC000-memory.dmp

              Filesize

              304KB

            • memory/4564-41-0x0000000006610000-0x000000000662E000-memory.dmp

              Filesize

              120KB

            • memory/4564-43-0x00000000066B0000-0x00000000066FC000-memory.dmp

              Filesize

              304KB

            • memory/4564-39-0x0000000006160000-0x00000000064B7000-memory.dmp

              Filesize

              3.3MB

            • memory/4564-30-0x00000000060F0000-0x0000000006156000-memory.dmp

              Filesize

              408KB

            • memory/4564-28-0x0000000005770000-0x0000000005792000-memory.dmp

              Filesize

              136KB

            • memory/4564-24-0x00000000058E0000-0x0000000005F0A000-memory.dmp

              Filesize

              6.2MB

            • memory/4564-22-0x0000000003190000-0x00000000031C6000-memory.dmp

              Filesize

              216KB

            • memory/4564-20-0x0000000003180000-0x0000000003190000-memory.dmp

              Filesize

              64KB

            • memory/4564-16-0x00000000737FE000-0x00000000737FF000-memory.dmp

              Filesize

              4KB