Overview

overview

10

Static

static

3

tmpjiqdd1h6.exe

windows10-ltsc_2021-x64

10

tmpjiqdd1h6.exe

windows10-2004-x64

10

tmpjiqdd1h6.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, 03:45

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General

  • Target
    tmpjiqdd1h6.exe
  • Size 532KB
  • Sample260602-ebj84aew3q
  • SHA256 44486d706aceafbe98008d88664caba6c68c9b430c13968fe24fb5b7142b764b
  • 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 36 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 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 8 IoCs

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

  • 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 40 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpjiqdd1h6.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpjiqdd1h6.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5008
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\users\admin\appdata\local\temp\tmpjiqdd1h6.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:1712
      • C:\Users\Admin\AppData\Local\Temp\zjgkq.exe
        "C:\Users\Admin\AppData\Local\Temp\zjgkq.exe" "-C:\Users\Admin\AppData\Local\Temp\wrzofwlctjsanblm.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 Location Discovery: System Language Discovery
        • System policy modification
        PID:4112
      • C:\Users\Admin\AppData\Local\Temp\zjgkq.exe
        "C:\Users\Admin\AppData\Local\Temp\zjgkq.exe" "-C:\Users\Admin\AppData\Local\Temp\wrzofwlctjsanblm.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:872
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\users\admin\appdata\local\temp\tmpjiqdd1h6.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:3816
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3256
  • C:\Windows\wrzofwlctjsanblm.exe
    wrzofwlctjsanblm.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\wrzofwlctjsanblm.exe*."
      2⤵
      • Executes dropped EXE
      PID:468
  • C:\Windows\kjvojexsnhugxpdilugf.exe
    kjvojexsnhugxpdilugf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2712
  • C:\Windows\xvgysmeyslxiypcgiqb.exe
    xvgysmeyslxiypcgiqb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1120
  • C:\Users\Admin\AppData\Local\Temp\xvgysmeyslxiypcgiqb.exe
    C:\Users\Admin\AppData\Local\Temp\xvgysmeyslxiypcgiqb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4824
  • C:\Windows\dziyqiyqizjsgvgii.exe
    dziyqiyqizjsgvgii.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\dziyqiyqizjsgvgii.exe*."
      2⤵
      • Executes dropped EXE
      PID:632
  • C:\Users\Admin\AppData\Local\Temp\dziyqiyqizjsgvgii.exe
    C:\Users\Admin\AppData\Local\Temp\dziyqiyqizjsgvgii.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2228
  • C:\Windows\mjtkdwngzrcmbrdgho.exe
    mjtkdwngzrcmbrdgho.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\mjtkdwngzrcmbrdgho.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:1756
  • C:\Windows\wrzofwlctjsanblm.exe
    wrzofwlctjsanblm.exe
    1⤵
    • Executes dropped EXE
    PID:2372
  • C:\Windows\zzmgcysokftgyrgmqanna.exe
    zzmgcysokftgyrgmqanna.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4824
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\zzmgcysokftgyrgmqanna.exe*."
      2⤵
      • Executes dropped EXE
      PID:2588
  • C:\Windows\xvgysmeyslxiypcgiqb.exe
    xvgysmeyslxiypcgiqb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3856
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\xvgysmeyslxiypcgiqb.exe*."
      2⤵
      • Executes dropped EXE
      PID:4152
  • C:\Users\Admin\AppData\Local\Temp\zzmgcysokftgyrgmqanna.exe
    C:\Users\Admin\AppData\Local\Temp\zzmgcysokftgyrgmqanna.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4856
  • C:\Windows\zzmgcysokftgyrgmqanna.exe
    zzmgcysokftgyrgmqanna.exe
    1⤵
    • Executes dropped EXE
    PID:724
  • C:\Windows\mjtkdwngzrcmbrdgho.exe
    mjtkdwngzrcmbrdgho.exe
    1⤵
    • Executes dropped EXE
    PID:968
  • C:\Users\Admin\AppData\Local\Temp\kjvojexsnhugxpdilugf.exe
    C:\Users\Admin\AppData\Local\Temp\kjvojexsnhugxpdilugf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:944
  • C:\Windows\kjvojexsnhugxpdilugf.exe
    kjvojexsnhugxpdilugf.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\kjvojexsnhugxpdilugf.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:1120
  • C:\Users\Admin\AppData\Local\Temp\wrzofwlctjsanblm.exe
    C:\Users\Admin\AppData\Local\Temp\wrzofwlctjsanblm.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4064
  • C:\Users\Admin\AppData\Local\Temp\mjtkdwngzrcmbrdgho.exe
    C:\Users\Admin\AppData\Local\Temp\mjtkdwngzrcmbrdgho.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:212
  • C:\Windows\dziyqiyqizjsgvgii.exe
    dziyqiyqizjsgvgii.exe
    1⤵
    • Executes dropped EXE
    PID:4972

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

        jmudieyytwe.exe
        • Path C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
        • Size 320KB
        • SHA256 b5643a7d0fe6085506e23f0f7a8ffdd41f0cb91aef9c4348dd724a5f743be5b9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        zjgkq.exe
        • Path C:\Users\Admin\AppData\Local\Temp\zjgkq.exe
        • Size 704KB
        • SHA256 3223907cd9df0e143fc96f06ba106809bf6f11e96846252c49b126e3faab4025
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        wrzofwlctjsanblmlqytbqhynevlucpdnonsav.sja
        • Path C:\Users\Admin\AppData\Local\wrzofwlctjsanblmlqytbqhynevlucpdnonsav.sja
        • Size 3KB
        • SHA256 dc4036fb26de3fedc7c1605843256d2b780328ef16d0984a1d1948815b8b806d
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        zjgkqwagmrpmorqguolvswcimsy.bya
        • Path C:\Users\Admin\AppData\Local\zjgkqwagmrpmorqguolvswcimsy.bya
        • Size 272B
        • SHA256 34a91264740cd80b40ec4288db46b18d337936ff81bf2cf7d01f5b605a5eaa90
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        mjtkdwngzrcmbrdgho.exe
        • Path C:\Windows\SysWOW64\mjtkdwngzrcmbrdgho.exe
        • Size 532KB
        • SHA256 44486d706aceafbe98008d88664caba6c68c9b430c13968fe24fb5b7142b764b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download