Overview

overview

10

Static

static

3

tmpe042zxlo.exe

windows10-ltsc_2021-x64

10

tmpe042zxlo.exe

windows10-2004-x64

10

tmpe042zxlo.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    22/05/2026, 14:46

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General

  • Target
    tmpe042zxlo.exe
  • Size 564KB
  • Sample260522-r5jwmsgx61
  • SHA256 d32d585693fabb35cdd7019a2b0e749715e4f5e23cf87d5ee3bf099aa36dfb7d
  • 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 7 IoCs
    persistence
  • UAC bypass 3 TTPs 16 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 37 IoCs
    persistence
  • Disables RegEdit via registry modification 7 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 7 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 14 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 5 IoCs

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

  • Drops file in System32 directory 53 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 53 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 19 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 44 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpe042zxlo.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpe042zxlo.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5380
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\users\admin\appdata\local\temp\tmpe042zxlo.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:4992
      • C:\Users\Admin\AppData\Local\Temp\dhgmp.exe
        "C:\Users\Admin\AppData\Local\Temp\dhgmp.exe" "-C:\Users\Admin\AppData\Local\Temp\apzqexkatjsdsmbb.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:5432
      • C:\Users\Admin\AppData\Local\Temp\dhgmp.exe
        "C:\Users\Admin\AppData\Local\Temp\dhgmp.exe" "-C:\Users\Admin\AppData\Local\Temp\apzqexkatjsdsmbb.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:780
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\users\admin\appdata\local\temp\tmpe042zxlo.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:3596
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:4184
  • C:\Windows\hxiapjxoizjvlgwxj.exe
    hxiapjxoizjvlgwxj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4784
  • C:\Windows\btgarndwslxldasvjpf.exe
    btgarndwslxldasvjpf.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5884
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\windows\btgarndwslxldasvjpf.exe*."
      2⤵
      • Executes dropped EXE
      PID:2628
  • C:\Windows\apzqexkatjsdsmbb.exe
    apzqexkatjsdsmbb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5880
  • C:\Windows\dxmibzrmkftjdcwbrzrla.exe
    dxmibzrmkftjdcwbrzrla.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\windows\dxmibzrmkftjdcwbrzrla.exe*."
      2⤵
      • Executes dropped EXE
      PID:1232
  • C:\Users\Admin\AppData\Local\Temp\apzqexkatjsdsmbb.exe
    C:\Users\Admin\AppData\Local\Temp\apzqexkatjsdsmbb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3816
  • C:\Windows\qhtmcxmezrcpgctvin.exe
    qhtmcxmezrcpgctvin.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3640
  • C:\Users\Admin\AppData\Local\Temp\qhtmcxmezrcpgctvin.exe
    C:\Users\Admin\AppData\Local\Temp\qhtmcxmezrcpgctvin.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3120
  • C:\Windows\apzqexkatjsdsmbb.exe
    apzqexkatjsdsmbb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\windows\apzqexkatjsdsmbb.exe*."
      2⤵
      • Executes dropped EXE
      PID:3664
  • C:\Windows\hxiapjxoizjvlgwxj.exe
    hxiapjxoizjvlgwxj.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5196
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\windows\hxiapjxoizjvlgwxj.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:3320
  • C:\Users\Admin\AppData\Local\Temp\btgarndwslxldasvjpf.exe
    C:\Users\Admin\AppData\Local\Temp\btgarndwslxldasvjpf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3076
  • C:\Users\Admin\AppData\Local\Temp\dxmibzrmkftjdcwbrzrla.exe
    C:\Users\Admin\AppData\Local\Temp\dxmibzrmkftjdcwbrzrla.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2804
  • C:\Windows\dxmibzrmkftjdcwbrzrla.exe
    dxmibzrmkftjdcwbrzrla.exe
    1⤵
    • Executes dropped EXE
    PID:6124
  • C:\Windows\ohvqifwqnhujcatxmtkd.exe
    ohvqifwqnhujcatxmtkd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:728
  • C:\Users\Admin\AppData\Local\Temp\ohvqifwqnhujcatxmtkd.exe
    C:\Users\Admin\AppData\Local\Temp\ohvqifwqnhujcatxmtkd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4888
  • C:\Windows\btgarndwslxldasvjpf.exe
    btgarndwslxldasvjpf.exe
    1⤵
    • Executes dropped EXE
    PID:5184
  • C:\Windows\ohvqifwqnhujcatxmtkd.exe
    ohvqifwqnhujcatxmtkd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3492
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\windows\ohvqifwqnhujcatxmtkd.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:5560
  • C:\Users\Admin\AppData\Local\Temp\hxiapjxoizjvlgwxj.exe
    C:\Users\Admin\AppData\Local\Temp\hxiapjxoizjvlgwxj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3768
  • C:\Windows\qhtmcxmezrcpgctvin.exe
    qhtmcxmezrcpgctvin.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3816
    • C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
      "C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe" "c:\windows\qhtmcxmezrcpgctvin.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
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4776

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

        Loading Replay Monitor...

        Downloads

        dhgmp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\dhgmp.exe
        • Size 724KB
        • SHA256 2a66b87d0d0267b09de0f4a11ed88ff26eed9056e5d08b57b2490cb3dc78e217
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        jpzoytzxtzj.exe
        • Path C:\Users\Admin\AppData\Local\Temp\jpzoytzxtzj.exe
        • Size 320KB
        • SHA256 48971a24757ef25b7c6a9bb44ed4362058e612013870aa34a63fd38a73e558bb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ffacbfdeijdzzeeplzxxsut.vwa
        • Path C:\Users\Admin\AppData\Local\ffacbfdeijdzzeeplzxxsut.vwa
        • Size 280B
        • SHA256 c87c2a28c1c401076d6a0d49a605206da3e09771d687f2f82a2e71ec9f4aed70
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        sdjwgveqfrwdoeplsralreodmynzelwmxt.zit
        • Path C:\Users\Admin\AppData\Local\sdjwgveqfrwdoeplsralreodmynzelwmxt.zit
        • Size 4KB
        • SHA256 e87e1b3bce981581d75ca34dcf701af90b3f470304d226f10796d18817ff9f45
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        qhtmcxmezrcpgctvin.exe
        • Path C:\Windows\SysWOW64\qhtmcxmezrcpgctvin.exe
        • Size 564KB
        • SHA256 d32d585693fabb35cdd7019a2b0e749715e4f5e23cf87d5ee3bf099aa36dfb7d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download