Overview

overview

10

Static

static

3

tmp0no6c8ud.exe

windows10-2004-x64

10

tmp0no6c8ud.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 14:05

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    tmp0no6c8ud.exe
  • Size 564KB
  • Sample260522-rd99hsds8k
  • SHA256 96f61de90a974ccc68cfc41e4b6b37fce21d7a05504a20bd13dc617e97259e02
  • 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 6 IoCs
    persistence
  • UAC bypass 3 TTPs 15 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 35 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    defense_evasion
  • 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 12 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 autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 46 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 46 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 18 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 42 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp0no6c8ud.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp0no6c8ud.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\users\admin\appdata\local\temp\tmp0no6c8ud.exe*"
      2⤵
      • 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 Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4000
      • C:\Users\Admin\AppData\Local\Temp\itsgns.exe
        "C:\Users\Admin\AppData\Local\Temp\itsgns.exe" "-C:\Users\Admin\AppData\Local\Temp\upywncnbtjutdwzj.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 autorun.inf file
        • 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:3200
      • C:\Users\Admin\AppData\Local\Temp\itsgns.exe
        "C:\Users\Admin\AppData\Local\Temp\itsgns.exe" "-C:\Users\Admin\AppData\Local\Temp\upywncnbtjutdwzj.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:1448
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\users\admin\appdata\local\temp\tmp0no6c8ud.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:4848
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:5048
  • C:\Windows\khsslcpfzrefrmrdyx.exe
    khsslcpfzrefrmrdyx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2648
  • C:\Windows\bxhgyoapizllwqufz.exe
    bxhgyoapizllwqufz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4356
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\bxhgyoapizllwqufz.exe*."
      2⤵
      • Executes dropped EXE
      PID:3176
  • C:\Windows\ihuwrkzrnhwznkrfcded.exe
    ihuwrkzrnhwznkrfcded.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4844
  • C:\Users\Admin\AppData\Local\Temp\vtfgasgxslzbokqdzzz.exe
    C:\Users\Admin\AppData\Local\Temp\vtfgasgxslzbokqdzzz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2752
  • C:\Windows\vtfgasgxslzbokqdzzz.exe
    vtfgasgxslzbokqdzzz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\vtfgasgxslzbokqdzzz.exe*."
      2⤵
      • Executes dropped EXE
      PID:4716
  • C:\Users\Admin\AppData\Local\Temp\ihuwrkzrnhwznkrfcded.exe
    C:\Users\Admin\AppData\Local\Temp\ihuwrkzrnhwznkrfcded.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3468
  • C:\Windows\upywncnbtjutdwzj.exe
    upywncnbtjutdwzj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4696
  • C:\Windows\upywncnbtjutdwzj.exe
    upywncnbtjutdwzj.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\upywncnbtjutdwzj.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:3088
  • C:\Users\Admin\AppData\Local\Temp\xxlokeunkfvzomujhjllz.exe
    C:\Users\Admin\AppData\Local\Temp\xxlokeunkfvzomujhjllz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2740
  • C:\Windows\xxlokeunkfvzomujhjllz.exe
    xxlokeunkfvzomujhjllz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\xxlokeunkfvzomujhjllz.exe*."
      2⤵
      • Executes dropped EXE
      PID:2668
  • C:\Windows\bxhgyoapizllwqufz.exe
    bxhgyoapizllwqufz.exe
    1⤵
    • Executes dropped EXE
    PID:3980
  • C:\Users\Admin\AppData\Local\Temp\upywncnbtjutdwzj.exe
    C:\Users\Admin\AppData\Local\Temp\upywncnbtjutdwzj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3284
  • C:\Windows\xxlokeunkfvzomujhjllz.exe
    xxlokeunkfvzomujhjllz.exe
    1⤵
    • Executes dropped EXE
    PID:416
  • C:\Windows\khsslcpfzrefrmrdyx.exe
    khsslcpfzrefrmrdyx.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:580
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\khsslcpfzrefrmrdyx.exe*."
      2⤵
      • Executes dropped EXE
      PID:4296
  • C:\Windows\ihuwrkzrnhwznkrfcded.exe
    ihuwrkzrnhwznkrfcded.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\ihuwrkzrnhwznkrfcded.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:956
  • C:\Users\Admin\AppData\Local\Temp\bxhgyoapizllwqufz.exe
    C:\Users\Admin\AppData\Local\Temp\bxhgyoapizllwqufz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2864
  • C:\Users\Admin\AppData\Local\Temp\khsslcpfzrefrmrdyx.exe
    C:\Users\Admin\AppData\Local\Temp\khsslcpfzrefrmrdyx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4800
  • C:\Windows\vtfgasgxslzbokqdzzz.exe
    vtfgasgxslzbokqdzzz.exe
    1⤵
    • Executes dropped EXE
    PID:2860

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Replication Through Removable Media

        1
        T1091

        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

        System Information Discovery

        2
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Replication Through Removable Media

        1
        T1091

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ydwefezxzzudxanhkrydwe.ezx
        • Path C:\Program Files (x86)\ydwefezxzzudxanhkrydwe.ezx
        • Size 280B
        • SHA256 2b989dbd9fe4adf81b4cae7cf1b41939734c840aafdbcadd7d855c3e97068dff
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ydwefezxzzudxanhkrydwe.ezx
        • Path C:\Program Files (x86)\ydwefezxzzudxanhkrydwe.ezx
        • Size 280B
        • SHA256 e911a693cca165dac14a1c27e1f53df99b4b9e1dd3a4328050e2d269e1a59e11
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ydwefezxzzudxanhkrydwe.ezx
        • Path C:\Program Files (x86)\ydwefezxzzudxanhkrydwe.ezx
        • Size 280B
        • SHA256 f42970bf08470ddfa0ceec676c115545383e003816509340ac666d4366a54df3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        itsgns.exe
        • Path C:\Users\Admin\AppData\Local\Temp\itsgns.exe
        • Size 708KB
        • SHA256 9ac0b921afacf167bf1e54761656bf59ecff96cf046552cf29f47ebef1abf93d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        lfkywbphvpu.exe
        • Path C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
        • Size 320KB
        • SHA256 d09bd01fcdcb229d61a2bfdb04d364c6154f3a1488b692a5981a3628b6ea8ff8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pfjcoyenalrlqechvnfvzseoudqbhbgus.ldv
        • Path C:\Users\Admin\AppData\Local\pfjcoyenalrlqechvnfvzseoudqbhbgus.ldv
        • Size 4KB
        • SHA256 52609a08c73a28961916c6a2173923fb96ac932c018de657306445423cf12d6d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ydwefezxzzudxanhkrydwe.ezx
        • Path C:\Users\Admin\AppData\Local\ydwefezxzzudxanhkrydwe.ezx
        • Size 280B
        • SHA256 936ec3e518b36cba65d81ae35ba451f92f7e8f1b34b7ff763dd29f14618c9c03
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        khsslcpfzrefrmrdyx.exe
        • Path C:\Windows\SysWOW64\khsslcpfzrefrmrdyx.exe
        • Size 564KB
        • SHA256 96f61de90a974ccc68cfc41e4b6b37fce21d7a05504a20bd13dc617e97259e02
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download