Overview

overview

8

Static

static

3

papercut-p...er.exe

windows10-2004-x64

7

papercut-p...er.exe

windows11-21h2-x64

8

Analysis

  • user interaction
    yes
  • 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
    19/05/2026, 23:17

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General

  • Target
    papercut-print-logger.exe
  • Size 1000KB
  • Sample260519-29xcmsdw2x
  • SHA256 4e01eeea0568ea35a5fc774388ef931caa7b1a07a4039b4fc3e46ac3d9fe21f9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
discoveryinstallerpersistence

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Port Monitors 1 TTPs 12 IoCs

    Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    persistence
  • Executes dropped EXE 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in Program Files directory 62 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

    discovery
  • Inno Setup is an open-source installation builder for Windows applications. 3 IoCs

    Inno Setup installer

    installer
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

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

  • Modifies data under HKEY_USERS 24 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\papercut-print-logger.exe
    "C:\Users\Admin\AppData\Local\Temp\papercut-print-logger.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Local\Temp\is-T0UVB.tmp\papercut-print-logger.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-T0UVB.tmp\papercut-print-logger.tmp" /SL5="$9005A,551385,140800,C:\Users\Admin\AppData\Local\Temp\papercut-print-logger.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1136
      • C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe
        "C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe" /config-spooler
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        PID:2844
      • C:\Windows\SysWOW64\net.exe
        "net.exe" stop spooler /Y
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3400
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop spooler /Y
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4424
      • C:\Windows\SysWOW64\net.exe
        "net.exe" start spooler
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:796
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 start spooler
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4716
      • C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe
        "C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe" /install
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        PID:4428
      • C:\Windows\SysWOW64\net.exe
        "net.exe" start PCPrintLogger
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4200
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 start PCPrintLogger
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5004
  • C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    1⤵
    • Boot or Logon Autostart Execution: Port Monitors
    • Checks SCSI registry key(s)
    • Modifies data under HKEY_USERS
    PID:4084
  • C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe
    "C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe" PCPrintLogger
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4816

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        sheet-count-all-time.txt
        • Path C:\Program Files (x86)\PaperCut Print Logger\logs\sheet-count-all-time.txt
        • Size 3B
        • SHA256 13bf7b3039c63bf5a50491fa3cfd8eb4e699d1ba1436315aef9cbe5711530354
        • MD5 SHA1 SHA512
        Submit Download

        papercut-logger.conf
        • Path C:\Program Files (x86)\PaperCut Print Logger\papercut-logger.conf
        • Size 1KB
        • SHA256 bd6cd77053e341240cc0f065b36a88753bf7994cefa4667216b9c8524509a92c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        papercut-logger.log
        • Path C:\Program Files (x86)\PaperCut Print Logger\papercut-logger.log
        • Size 338B
        • SHA256 880aef8d45ecb3d4a590c50b2a0d55ebf9d059c75a9930df0558ed7ed72de4c7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        pcpl.exe
        • Path C:\Program Files (x86)\PaperCut Print Logger\pcpl.exe
        • Size 908KB
        • SHA256 beeb75da2a641e281a9814ebe0201c94843973c3b880bba673aa9e4bbbe283ba
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        papercut-print-logger.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\is-T0UVB.tmp\papercut-print-logger.tmp
        • Size 1.1MB
        • SHA256 9461ae8a13a57c0d8490916dc1e1bb20cb0c171b9852d0846a03c4c4d212f204
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1136-9-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-148-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-16-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-18-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-20-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-22-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-24-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-26-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-28-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-152-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-7-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-8-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1136-151-0x0000000000400000-0x0000000000526000-memory.dmp
        Download

        memory/1644-14-0x0000000000400000-0x000000000042D000-memory.dmp
        Download

        memory/1644-2-0x000000000041E000-0x000000000041F000-memory.dmp
        Download

        memory/1644-0-0x0000000000400000-0x000000000042D000-memory.dmp
        Download

        memory/1644-153-0x0000000000400000-0x000000000042D000-memory.dmp
        Download

        memory/4084-149-0x00000000024B0000-0x00000000025F2000-memory.dmp
        Download