Overview

overview

10

Static

static

3

tmp6ozhe3q1.exe

windows10-ltsc_2021-x64

10

tmp6ozhe3q1.exe

windows10-2004-x64

10

tmp6ozhe3q1.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 03:29

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General

  • Target
    tmp6ozhe3q1.exe
  • Size 564KB
  • Sample260602-d2a8facz4s
  • SHA256 32510832786c8c03e0f41c41e7f5de58f74e57ccfdacaae4468db0bd7a3dce15
  • 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 5 IoCs
    persistence
  • UAC bypass 3 TTPs 14 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 32 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 10 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 7 IoCs

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

  • Drops file in System32 directory 39 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 39 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 17 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\tmp6ozhe3q1.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp6ozhe3q1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4372
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\users\admin\appdata\local\temp\tmp6ozhe3q1.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:1148
      • C:\Users\Admin\AppData\Local\Temp\nothfn.exe
        "C:\Users\Admin\AppData\Local\Temp\nothfn.exe" "-C:\Users\Admin\AppData\Local\Temp\zkzxfxpgxisanblm.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:2088
      • C:\Users\Admin\AppData\Local\Temp\nothfn.exe
        "C:\Users\Admin\AppData\Local\Temp\nothfn.exe" "-C:\Users\Admin\AppData\Local\Temp\zkzxfxpgxisanblm.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:1044
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\users\admin\appdata\local\temp\tmp6ozhe3q1.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:3140
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3192
  • C:\Windows\zkzxfxpgxisanblm.exe
    zkzxfxpgxisanblm.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\zkzxfxpgxisanblm.exe*."
      2⤵
      • Executes dropped EXE
      PID:3952
  • C:\Windows\aoghsnicwkxiypcgiqe.exe
    aoghsnicwkxiypcgiqe.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1760
  • C:\Users\Admin\AppData\Local\Temp\zkzxfxpgxisanblm.exe
    C:\Users\Admin\AppData\Local\Temp\zkzxfxpgxisanblm.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3624
  • C:\Windows\pcttdxrkdqcmbrdgho.exe
    pcttdxrkdqcmbrdgho.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3020
  • C:\Users\Admin\AppData\Local\Temp\ncvxjfbwrgugxpdilujy.exe
    C:\Users\Admin\AppData\Local\Temp\ncvxjfbwrgugxpdilujy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2100
  • C:\Windows\gsihqjcumyjsgvgii.exe
    gsihqjcumyjsgvgii.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4964
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\gsihqjcumyjsgvgii.exe*."
      2⤵
      • Executes dropped EXE
      PID:4224
  • C:\Windows\pcttdxrkdqcmbrdgho.exe
    pcttdxrkdqcmbrdgho.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4664
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\pcttdxrkdqcmbrdgho.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:3568
  • C:\Windows\gsihqjcumyjsgvgii.exe
    gsihqjcumyjsgvgii.exe
    1⤵
    • Executes dropped EXE
    PID:2360
  • C:\Windows\csmpczwsoetgyrgmqaqga.exe
    csmpczwsoetgyrgmqaqga.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\csmpczwsoetgyrgmqaqga.exe*."
      2⤵
      • Executes dropped EXE
      PID:2836
  • C:\Windows\ncvxjfbwrgugxpdilujy.exe
    ncvxjfbwrgugxpdilujy.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\ncvxjfbwrgugxpdilujy.exe*."
      2⤵
      • Executes dropped EXE
      PID:3356
  • C:\Users\Admin\AppData\Local\Temp\csmpczwsoetgyrgmqaqga.exe
    C:\Users\Admin\AppData\Local\Temp\csmpczwsoetgyrgmqaqga.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4260
  • C:\Windows\ncvxjfbwrgugxpdilujy.exe
    ncvxjfbwrgugxpdilujy.exe
    1⤵
    • Executes dropped EXE
    PID:1484
  • C:\Users\Admin\AppData\Local\Temp\pcttdxrkdqcmbrdgho.exe
    C:\Users\Admin\AppData\Local\Temp\pcttdxrkdqcmbrdgho.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1928
  • C:\Windows\zkzxfxpgxisanblm.exe
    zkzxfxpgxisanblm.exe
    1⤵
    • Executes dropped EXE
    PID:4704
  • C:\Windows\aoghsnicwkxiypcgiqe.exe
    aoghsnicwkxiypcgiqe.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe
      "C:\Users\Admin\AppData\Local\Temp\jmudieyytwe.exe" "c:\windows\aoghsnicwkxiypcgiqe.exe*."
      2⤵
      • Executes dropped EXE
      PID:1380
  • C:\Windows\csmpczwsoetgyrgmqaqga.exe
    csmpczwsoetgyrgmqaqga.exe
    1⤵
    • Executes dropped EXE
    PID:3324
  • C:\Users\Admin\AppData\Local\Temp\gsihqjcumyjsgvgii.exe
    C:\Users\Admin\AppData\Local\Temp\gsihqjcumyjsgvgii.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1800
  • C:\Users\Admin\AppData\Local\Temp\aoghsnicwkxiypcgiqe.exe
    C:\Users\Admin\AppData\Local\Temp\aoghsnicwkxiypcgiqe.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2836

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 9e2424356f1da9c0f19af9be90992daf222bc335e9110caa6e95af09973e834e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nothfn.exe
        • Path C:\Users\Admin\AppData\Local\Temp\nothfn.exe
        • Size 704KB
        • SHA256 9da99dff9beed46a123b50f3d4f4b1d3f8362367f6c9f28b822fd3a7bae9db3b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        eaajcfikmidwutoakawssbu.ace
        • Path C:\Users\Admin\AppData\Local\eaajcfikmidwutoakawssbu.ace
        • Size 280B
        • SHA256 e9af5fce966e27a210c836b65cae61bc8dfb8e893c88fa541b2e97e09eab742d
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ryjdhvjwjqwajtzwrszgrlpdreryeirbhe.aho
        • Path C:\Users\Admin\AppData\Local\ryjdhvjwjqwajtzwrszgrlpdreryeirbhe.aho
        • Size 4KB
        • SHA256 10e3e0a72038f24586236a18f61b8d6c0055d9d0a917731e48fb8c7223dbc2b2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pcttdxrkdqcmbrdgho.exe
        • Path C:\Windows\SysWOW64\pcttdxrkdqcmbrdgho.exe
        • Size 564KB
        • SHA256 32510832786c8c03e0f41c41e7f5de58f74e57ccfdacaae4468db0bd7a3dce15
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download