Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 15:00

General

  • Target
    PO-1366.pdf.js
  • Size 495KB
  • Sample261009-sdkjjay16m
  • SHA256 96bce03ae9a4332933f67338bca131bcad6063cefce7f858778f6070609e772f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.bomarkroyal.com

  • Port

    587

  • Password

    bP@z@p6uXm%T

Extracted

Family
  • masslogger

Attributes
  • exfiltration_mode

    #SMTPEnabled

  • expire_time_date

    00-00-0000

  • host_password

    bP@z@p6uXm%T

  • host_port

    587

  • host_receiver

    [email protected]

  • host_sender

    [email protected]

  • host_server

    mail.bomarkroyal.com

  • ssl_slate

    False

Signatures

  • Family: MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 TTPs 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 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 24 IoCs
  • Suspicious behavior: MapViewOfSection 1 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\PO-1366.pdf.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5908
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -command &($executioncontext.InvokeCommand.NewScriptBlock([string]$env:WCGHN))
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4912
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c call "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\90236870945525.cmd" & attrib +h +s "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\90236870945525.cmd"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4136
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "&($executioncontext.InvokeCommand.NewScriptBlock([string]$env:DEKHZGHSK))"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2784
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "&($executioncontext.InvokeCommand.NewScriptBlock([string]$env:DEKHZGHSK))"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:300
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "&($executioncontext.InvokeCommand.NewScriptBlock([string]$env:DEKHZGHSK))"
          4⤵
          • Adds Run key to start application
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4660
          • C:\Windows\SysWOW64\choice.exe
            "C:\Windows\system32\choice.exe"
            5⤵
            • Accesses Microsoft Outlook profiles
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • outlook_office_path
            • outlook_win_path
            PID:4780
      • C:\Windows\system32\attrib.exe
        attrib +h +s "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\90236870945525.cmd"
        3⤵
        • Views/modifies file attributes
        PID:4732

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        90236870945525.cmd

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\90236870945525.cmd
        • Size 458KB
        • SHA256 1cdc2744f51a1ac0d2fc2406a3206a2e34e04e30c6c356dae2357e3f11cebdbc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 952B
        • SHA256 c5fd6d82c388ad801b8a16d62216433d22b114b18c307ac3bee3d174cae51da7
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 fa606866043197f75de4426de51670f2291a94433384efe403e0026db4429a69
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_4whs35ar.arr.psm1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4whs35ar.arr.psm1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        handoff_dbg_4660_e59f15b.txt

        • Path C:\Users\Admin\AppData\Local\Temp\handoff_dbg_4660_e59f15b.txt
        • Size 121B
        • SHA256 4a652da5699cb6f0b674c10aab27dab191b05c435edccb1e426c04c59406dd1f
        • MD5 SHA1 SHA512 TLSH

        handoff_dbg_4660_e59f15b.txt

        • Path C:\Users\Admin\AppData\Local\Temp\handoff_dbg_4660_e59f15b.txt
        • Size 144B
        • SHA256 a79cb0f27d8d7b33602674da5efcdf8193b51434701cd89b2632e650343b704c
        • MD5 SHA1 SHA512 TLSH

        memory/4660-28-0x00000000055A0000-0x0000000005606000-memory.dmp

        memory/4660-35-0x00000000061F0000-0x000000000623C000-memory.dmp

        memory/4660-55-0x00000000081A0000-0x00000000081A8000-memory.dmp

        memory/4660-54-0x00000000081B0000-0x00000000081CC000-memory.dmp

        memory/4660-53-0x0000000007AD0000-0x0000000007AE5000-memory.dmp

        memory/4660-52-0x0000000007AC0000-0x0000000007AD0000-memory.dmp

        memory/4660-27-0x0000000005500000-0x0000000005522000-memory.dmp

        memory/4660-29-0x0000000005610000-0x0000000005676000-memory.dmp

        memory/4660-51-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

        memory/4660-30-0x0000000005D80000-0x00000000060DB000-memory.dmp

        memory/4660-34-0x00000000061B0000-0x00000000061CE000-memory.dmp

        memory/4660-26-0x0000000005730000-0x0000000005D7A000-memory.dmp

        memory/4660-36-0x0000000007B10000-0x000000000818C000-memory.dmp

        memory/4660-37-0x0000000006780000-0x000000000679A000-memory.dmp

        memory/4660-38-0x0000000007570000-0x0000000007606000-memory.dmp

        memory/4660-39-0x0000000007500000-0x0000000007522000-memory.dmp

        memory/4660-40-0x0000000008750000-0x0000000008D0A000-memory.dmp

        memory/4660-25-0x0000000002EE0000-0x0000000002F16000-memory.dmp

        memory/4660-43-0x00000000077E0000-0x0000000007816000-memory.dmp

        memory/4660-44-0x0000000070580000-0x00000000705CC000-memory.dmp

        memory/4660-45-0x0000000070790000-0x0000000070AEB000-memory.dmp

        memory/4660-48-0x0000000007820000-0x0000000007840000-memory.dmp

        memory/4660-49-0x0000000007840000-0x00000000078E3000-memory.dmp

        memory/4660-50-0x0000000007940000-0x000000000794A000-memory.dmp

        memory/4780-147-0x0000000010000000-0x0000000010040000-memory.dmp

        memory/4780-302-0x0000000001420000-0x0000000001430000-memory.dmp

        memory/4780-757-0x0000000005BB0000-0x0000000005BC0000-memory.dmp

        memory/4780-750-0x0000000005B60000-0x0000000005B70000-memory.dmp

        memory/4780-751-0x0000000005B70000-0x0000000005B80000-memory.dmp

        memory/4780-56-0x0000000001270000-0x00000000012B0000-memory.dmp

        memory/4780-57-0x0000000001270000-0x00000000012B0000-memory.dmp

        memory/4780-60-0x0000000010000000-0x0000000010040000-memory.dmp

        memory/4780-71-0x0000000001270000-0x00000000012B0000-memory.dmp

        memory/4780-720-0x00000000054E0000-0x00000000054F0000-memory.dmp

        memory/4780-79-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4780-128-0x0000000002E40000-0x0000000002E50000-memory.dmp

        memory/4780-230-0x0000000002E40000-0x0000000002E50000-memory.dmp

        memory/4780-163-0x0000000056530000-0x0000000056531000-memory.dmp

        memory/4780-161-0x0000000056520000-0x0000000056521000-memory.dmp

        memory/4780-153-0x0000000053B40000-0x0000000053B41000-memory.dmp

        memory/4780-698-0x0000000003040000-0x0000000003050000-memory.dmp

        memory/4780-125-0x0000000002E20000-0x0000000002E21000-memory.dmp

        memory/4780-275-0x0000000005610000-0x00000000056AC000-memory.dmp

        memory/4780-108-0x0000000002CE0000-0x0000000002D00000-memory.dmp

        memory/4780-107-0x0000000002CE0000-0x0000000002D00000-memory.dmp

        memory/4780-197-0x0000000001420000-0x0000000001430000-memory.dmp

        memory/4780-92-0x00000000012B0000-0x00000000012C7000-memory.dmp

        memory/4780-84-0x0000000000EF0000-0x0000000000EF2000-memory.dmp

        memory/4780-157-0x0000000053B60000-0x0000000053B61000-memory.dmp

        memory/4780-155-0x0000000053B50000-0x0000000053B51000-memory.dmp

        memory/4780-76-0x0000000002F90000-0x0000000002FAE000-memory.dmp

        memory/4780-124-0x0000000002E10000-0x0000000002E11000-memory.dmp

        memory/4780-103-0x0000000001420000-0x0000000001430000-memory.dmp

        memory/4780-102-0x0000000001400000-0x0000000001417000-memory.dmp

        memory/4780-702-0x0000000003090000-0x00000000030A0000-memory.dmp

        memory/4780-73-0x0000000002CE0000-0x0000000002D00000-memory.dmp

        memory/4780-277-0x0000000006190000-0x00000000061E0000-memory.dmp

        memory/4780-711-0x0000000003100000-0x0000000003110000-memory.dmp

        memory/4780-367-0x0000000003100000-0x0000000003110000-memory.dmp

        memory/4780-343-0x0000000002E30000-0x0000000002E40000-memory.dmp

        memory/4780-405-0x0000000005B70000-0x0000000005B80000-memory.dmp

        memory/4780-375-0x00000000054F0000-0x0000000005500000-memory.dmp

        memory/4780-433-0x00000000545F0000-0x00000000545F1000-memory.dmp

        memory/4780-434-0x0000000054600000-0x0000000054601000-memory.dmp

        memory/4780-428-0x00000000545D0000-0x00000000545D1000-memory.dmp

        memory/4780-426-0x00000000545C0000-0x00000000545C1000-memory.dmp

        memory/4780-376-0x0000000005510000-0x0000000005520000-memory.dmp

        memory/4780-374-0x00000000054E0000-0x00000000054F0000-memory.dmp

        memory/4780-446-0x00000000063B0000-0x0000000006572000-memory.dmp

        memory/4780-530-0x0000000003100000-0x0000000003110000-memory.dmp

        memory/4780-539-0x00000000054E0000-0x00000000054F0000-memory.dmp

        memory/4780-582-0x0000000005B70000-0x0000000005B80000-memory.dmp

        memory/4780-540-0x00000000054F0000-0x0000000005500000-memory.dmp

        memory/4780-623-0x00000000009A0000-0x00000000009AB000-memory.dmp

        memory/4780-624-0x00000000062C0000-0x0000000006352000-memory.dmp

        memory/4780-625-0x0000000006260000-0x000000000626A000-memory.dmp

        memory/4780-703-0x00000000030A0000-0x00000000030B0000-memory.dmp

        memory/4912-8-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-0-0x00007FFB361EF000-0x00007FFB361F0000-memory.dmp

        memory/4912-3-0x000002393B3B0000-0x000002393B3D2000-memory.dmp

        memory/4912-4-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-5-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-6-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-7-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-9-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-10-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-12-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-14-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp

        memory/4912-15-0x00007FFB36060000-0x00007FFB36A04000-memory.dmp