Analysis

  • max time kernel
    300s
  • max time network
    204s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/06/2026, 04:30

General

  • Target
    PO 4500643866.exe
  • Size 942KB
  • Sample260603-e41fsaht6s
  • SHA256 968ceb613b536b5d661bb7414989a594b699d23b66a954757eda04dbbb248de2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.dycorp.ph

  • Port

    587

  • Password

    MAIL_jenny021825

Extracted

Family
  • masslogger

Attributes
  • exfiltration_mode

    #SMTPEnabled

  • expire_time_date

    2025-11-07

  • host_password

    MAIL_jenny021825

  • host_port

    587

  • host_receiver

    [email protected]

  • host_sender

    [email protected]

  • host_server

    mail.dycorp.ph

  • ssl_slate

    True

Signatures

  • Family: MassLogger

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 2 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 4 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 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO 4500643866.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 4500643866.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:404
    • 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\PO 4500643866.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2904
    • C:\Users\Admin\AppData\Local\Temp\PO 4500643866.exe
      "C:\Users\Admin\AppData\Local\Temp\PO 4500643866.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4476
  • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\vm4zizuovk2.ps1"
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Users\Admin\AppData\Roaming\sOCNIQp.exe
      "C:\Users\Admin\AppData\Roaming\sOCNIQp.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:936
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sOCNIQp.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1740
      • C:\Users\Admin\AppData\Roaming\sOCNIQp.exe
        "C:\Users\Admin\AppData\Roaming\sOCNIQp.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2660

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
        • MD5 SHA1 SHA512 TLSH

        sOCNIQp.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\sOCNIQp.exe.log
        • Size 1KB
        • SHA256 4c17576f64dea465c45a50573ee41771f7be9962ab2d07f961af4df5589bdcce
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 bea86a493cdd464c659bdd01ebd6b324a2257de05d82c1256f17b3a8f2dcb00f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_fmi1u4md.ut0.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fmi1u4md.ut0.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        vm4zizuovk2.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\vm4zizuovk2.ps1
        • Size 1KB
        • SHA256 ad05d8d9e937400fa2f1e0dde3e695c38f6250f4ce189dbb5e85e2746c6d8284
        • MD5 SHA1 SHA512 TLSH

        sOCNIQp.exe

        • Path C:\Users\Admin\AppData\Roaming\sOCNIQp.exe
        • Size 942KB
        • SHA256 968ceb613b536b5d661bb7414989a594b699d23b66a954757eda04dbbb248de2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/404-5-0x00000000058D0000-0x000000000596C000-memory.dmp

        memory/404-6-0x0000000005990000-0x00000000059AE000-memory.dmp

        memory/404-8-0x0000000009E40000-0x0000000009EF0000-memory.dmp

        memory/404-1-0x0000000005B20000-0x00000000060C6000-memory.dmp

        memory/404-7-0x0000000005820000-0x0000000005830000-memory.dmp

        memory/404-2-0x0000000005610000-0x00000000056A2000-memory.dmp

        memory/404-0-0x0000000000A70000-0x0000000000B60000-memory.dmp

        memory/404-3-0x0000000005820000-0x0000000005830000-memory.dmp

        memory/404-4-0x00000000057A0000-0x00000000057AA000-memory.dmp

        memory/1740-89-0x0000000007010000-0x0000000007021000-memory.dmp

        memory/1740-80-0x0000000005FB0000-0x0000000005FFC000-memory.dmp

        memory/1740-81-0x00000000705E0000-0x000000007062C000-memory.dmp

        memory/1740-88-0x0000000006CA0000-0x0000000006D44000-memory.dmp

        memory/1740-90-0x0000000007050000-0x0000000007065000-memory.dmp

        memory/2904-17-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

        memory/2904-58-0x00000000073A0000-0x00000000073B1000-memory.dmp

        memory/2904-15-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

        memory/2904-30-0x0000000005E30000-0x0000000005E4E000-memory.dmp

        memory/2904-29-0x0000000005A30000-0x0000000005D87000-memory.dmp

        memory/2904-45-0x0000000070670000-0x00000000706BC000-memory.dmp

        memory/2904-44-0x0000000006410000-0x0000000006444000-memory.dmp

        memory/2904-52-0x0000000007030000-0x000000000704E000-memory.dmp

        memory/2904-53-0x0000000007050000-0x00000000070F4000-memory.dmp

        memory/2904-55-0x0000000007190000-0x00000000071AA000-memory.dmp

        memory/2904-54-0x00000000077D0000-0x0000000007E4A000-memory.dmp

        memory/2904-56-0x0000000007210000-0x000000000721A000-memory.dmp

        memory/2904-57-0x0000000007420000-0x00000000074B6000-memory.dmp

        memory/2904-31-0x0000000005EE0000-0x0000000005F2C000-memory.dmp

        memory/2904-16-0x0000000002630000-0x0000000002666000-memory.dmp

        memory/2904-60-0x00000000073D0000-0x00000000073DE000-memory.dmp

        memory/2904-61-0x00000000073E0000-0x00000000073F5000-memory.dmp

        memory/2904-62-0x00000000074E0000-0x00000000074FA000-memory.dmp

        memory/2904-63-0x00000000074D0000-0x00000000074D8000-memory.dmp

        memory/2904-22-0x0000000005820000-0x0000000005886000-memory.dmp

        memory/2904-18-0x00000000050F0000-0x000000000571A000-memory.dmp

        memory/2904-20-0x0000000004FA0000-0x0000000004FC2000-memory.dmp

        memory/2904-21-0x0000000005040000-0x00000000050A6000-memory.dmp

        memory/3888-38-0x000002657BED0000-0x000002657BEF2000-memory.dmp

        memory/4476-19-0x0000000003000000-0x0000000003010000-memory.dmp

        memory/4476-67-0x0000000006E50000-0x0000000007012000-memory.dmp

        memory/4476-59-0x0000000006A90000-0x0000000006AE0000-memory.dmp

        memory/4476-13-0x0000000000400000-0x000000000041E000-memory.dmp