Overview

overview

10

Static

static

3

tmpl8icsrlz.exe

windows10-ltsc_2021-x64

10

tmpl8icsrlz.exe

windows10-2004-x64

10

tmpl8icsrlz.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/06/2026, 02:50

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General

  • Target
    tmpl8icsrlz.exe
  • Size 1016KB
  • Sample260602-dbvt6adw3j
  • SHA256 caa283a64056eb7cd81887d12b80e19664f7bcde76175855ce0ebd534a844393
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypykspapersistenceprivilege_escalationtrojanworm

Malware Config

Signatures

  • Family: Pykspa

    Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    wormpykspa
  • Detect Pykspa worm 2 IoCs
    worm
  • Modifies WinLogon for persistence 2 TTPs 8 IoCs
    persistence
  • UAC bypass 3 TTPs 17 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 40 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    defense_evasion
  • Checks computer location settings 2 TTPs 8 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 28 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 6 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 16 IoCs
    defense_evasiontrojan
  • Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 3 IoCs

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation
  • Looks up external IP address via web service 4 IoCs

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

  • Drops file in System32 directory 60 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 60 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 20 IoCs

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

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 45 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpl8icsrlz.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpl8icsrlz.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\users\admin\appdata\local\temp\tmpl8icsrlz.exe*"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3224
      • C:\Users\Admin\AppData\Local\Temp\huuhfn.exe
        "C:\Users\Admin\AppData\Local\Temp\huuhfn.exe" "-C:\Users\Admin\AppData\Local\Temp\tqaxfxlcreqzyqix.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Impair Defenses: Safe Mode Boot
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:4348
      • C:\Users\Admin\AppData\Local\Temp\huuhfn.exe
        "C:\Users\Admin\AppData\Local\Temp\huuhfn.exe" "-C:\Users\Admin\AppData\Local\Temp\tqaxfxlcreqzyqix.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System policy modification
        PID:4864
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\users\admin\appdata\local\temp\tmpl8icsrlz.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4424
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:1692
  • C:\Windows\wynpczsoiarfjgdxnprgi.exe
    wynpczsoiarfjgdxnprgi.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4600
  • C:\Windows\tqaxfxlcreqzyqix.exe
    tqaxfxlcreqzyqix.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1964
  • C:\Windows\ayjhqjyqguhrrkdtf.exe
    ayjhqjyqguhrrkdtf.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4408
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\ayjhqjyqguhrrkdtf.exe*."
      2⤵
      • Executes dropped EXE
      PID:2520
  • C:\Users\Admin\AppData\Local\Temp\wynpczsoiarfjgdxnprgi.exe
    C:\Users\Admin\AppData\Local\Temp\wynpczsoiarfjgdxnprgi.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3748
  • C:\Windows\uuhhsneyqgvhjezrfff.exe
    uuhhsneyqgvhjezrfff.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4428
  • C:\Windows\hiwxjfxslcsfieatijky.exe
    hiwxjfxslcsfieatijky.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:964
  • C:\Users\Admin\AppData\Local\Temp\hiwxjfxslcsfieatijky.exe
    C:\Users\Admin\AppData\Local\Temp\hiwxjfxslcsfieatijky.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4060
  • C:\Windows\ayjhqjyqguhrrkdtf.exe
    ayjhqjyqguhrrkdtf.exe
    1⤵
    • Executes dropped EXE
    PID:3484
  • C:\Users\Admin\AppData\Local\Temp\ayjhqjyqguhrrkdtf.exe
    C:\Users\Admin\AppData\Local\Temp\ayjhqjyqguhrrkdtf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3184
  • C:\Windows\hiwxjfxslcsfieatijky.exe
    hiwxjfxslcsfieatijky.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\hiwxjfxslcsfieatijky.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4536
  • C:\Windows\uuhhsneyqgvhjezrfff.exe
    uuhhsneyqgvhjezrfff.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\uuhhsneyqgvhjezrfff.exe*."
      2⤵
      • Executes dropped EXE
      PID:4208
  • C:\Users\Admin\AppData\Local\Temp\jiutdxngxmalmgared.exe
    C:\Users\Admin\AppData\Local\Temp\jiutdxngxmalmgared.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1768
  • C:\Users\Admin\AppData\Local\Temp\tqaxfxlcreqzyqix.exe
    C:\Users\Admin\AppData\Local\Temp\tqaxfxlcreqzyqix.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3372
  • C:\Windows\tqaxfxlcreqzyqix.exe
    tqaxfxlcreqzyqix.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5092
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\tqaxfxlcreqzyqix.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4892
  • C:\Users\Admin\AppData\Local\Temp\uuhhsneyqgvhjezrfff.exe
    C:\Users\Admin\AppData\Local\Temp\uuhhsneyqgvhjezrfff.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3708
  • C:\Windows\jiutdxngxmalmgared.exe
    jiutdxngxmalmgared.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4048
  • C:\Windows\jiutdxngxmalmgared.exe
    jiutdxngxmalmgared.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2452
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\jiutdxngxmalmgared.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4884
  • C:\Windows\wynpczsoiarfjgdxnprgi.exe
    wynpczsoiarfjgdxnprgi.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\wynpczsoiarfjgdxnprgi.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:2768

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Impair Defenses

        2
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Safe Mode Boot

        1
        T1562.009

        Modify Registry

        5
        T1112

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        huuhfn.exe
        • Path C:\Users\Admin\AppData\Local\Temp\huuhfn.exe
        • Size 712KB
        • SHA256 f80210bfc7337932171bee4b91b8ba62d06b1ea89a904db91232e00bdb3af529
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        lswqdqagvcg.exe
        • Path C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
        • Size 320KB
        • SHA256 916434bfe366ce864a80f230261c593a1e0d22d2101f63d8ab7ba64c1b710a20
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        bkgpjnnqrqojuycdajsoxrvv.zyw
        • Path C:\Users\Admin\AppData\Local\bkgpjnnqrqojuycdajsoxrvv.zyw
        • Size 280B
        • SHA256 a8f7e6b8ed788578a035810f6a832db3a4ba38630e995ca5eb7b6701c7c593cb
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        kelfkzkykudjfujvdxrysxmxlxhqwshwiqk.lfk
        • Path C:\Users\Admin\AppData\Local\kelfkzkykudjfujvdxrysxmxlxhqwshwiqk.lfk
        • Size 4KB
        • SHA256 0d87e9f11c8b5f2df7c12dfbc56823b6bfc6bf8b34ba15c57bb5e93e45b907c5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        jiutdxngxmalmgared.exe
        • Path C:\Windows\SysWOW64\jiutdxngxmalmgared.exe
        • Size 1016KB
        • SHA256 caa283a64056eb7cd81887d12b80e19664f7bcde76175855ce0ebd534a844393
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download