Overview

overview

10

Static

static

3

tmp6tv4n76r.exe

windows10-ltsc_2021-x64

10

tmp6tv4n76r.exe

windows10-2004-x64

10

tmp6tv4n76r.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • 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
    22/05/2026, 14:04

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General

  • Target
    tmp6tv4n76r.exe
  • Size 1016KB
  • Sample260522-rdsdpsds6m
  • SHA256 1adfe64c20a9e0ec8625ef833b81288dbb1af3ebe44bf10903a87b372937d2e5
  • 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 38 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 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 autorun.inf file 1 TTPs 4 IoCs

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

  • 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\tmp6tv4n76r.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp6tv4n76r.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4264
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmp6tv4n76r.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:3288
      • C:\Users\Admin\AppData\Local\Temp\aemsaer.exe
        "C:\Users\Admin\AppData\Local\Temp\aemsaer.exe" "-C:\Users\Admin\AppData\Local\Temp\zmdsjwseyijuybou.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:4692
      • C:\Users\Admin\AppData\Local\Temp\aemsaer.exe
        "C:\Users\Admin\AppData\Local\Temp\aemsaer.exe" "-C:\Users\Admin\AppData\Local\Temp\zmdsjwseyijuybou.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:4384
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmp6tv4n76r.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:3220
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:4188
  • C:\Windows\pexohwuieqtgmrgoxq.exe
    pexohwuieqtgmrgoxq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\pexohwuieqtgmrgoxq.exe*."
      2⤵
      • Executes dropped EXE
      PID:2524
  • C:\Windows\zmdsjwseyijuybou.exe
    zmdsjwseyijuybou.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1352
  • C:\Users\Admin\AppData\Local\Temp\zmdsjwseyijuybou.exe
    C:\Users\Admin\AppData\Local\Temp\zmdsjwseyijuybou.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3200
  • C:\Users\Admin\AppData\Local\Temp\gumcuifsnyamrvjqy.exe
    C:\Users\Admin\AppData\Local\Temp\gumcuifsnyamrvjqy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2500
  • C:\Windows\gumcuifsnyamrvjqy.exe
    gumcuifsnyamrvjqy.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\gumcuifsnyamrvjqy.exe*."
      2⤵
      • Executes dropped EXE
      PID:4940
  • C:\Windows\aqkcwmlaxkocjpfoyse.exe
    aqkcwmlaxkocjpfoyse.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1160
  • C:\Windows\nezsneeusglaipgqbwja.exe
    nezsneeusglaipgqbwja.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4596
  • C:\Windows\zmdsjwseyijuybou.exe
    zmdsjwseyijuybou.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\zmdsjwseyijuybou.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:3952
  • C:\Users\Admin\AppData\Local\Temp\aqkcwmlaxkocjpfoyse.exe
    C:\Users\Admin\AppData\Local\Temp\aqkcwmlaxkocjpfoyse.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3480
  • C:\Windows\gumcuifsnyamrvjqy.exe
    gumcuifsnyamrvjqy.exe
    1⤵
    • Executes dropped EXE
    PID:1996
  • C:\Windows\aqkcwmlaxkocjpfoyse.exe
    aqkcwmlaxkocjpfoyse.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\aqkcwmlaxkocjpfoyse.exe*."
      2⤵
      • Executes dropped EXE
      PID:2420
  • C:\Users\Admin\AppData\Local\Temp\cuqkgyzqpekajrjugcqie.exe
    C:\Users\Admin\AppData\Local\Temp\cuqkgyzqpekajrjugcqie.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4320
  • C:\Windows\nezsneeusglaipgqbwja.exe
    nezsneeusglaipgqbwja.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3304
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\nezsneeusglaipgqbwja.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:4780
  • C:\Windows\pexohwuieqtgmrgoxq.exe
    pexohwuieqtgmrgoxq.exe
    1⤵
    • Executes dropped EXE
    PID:4796
  • C:\Windows\cuqkgyzqpekajrjugcqie.exe
    cuqkgyzqpekajrjugcqie.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2660
  • C:\Windows\cuqkgyzqpekajrjugcqie.exe
    cuqkgyzqpekajrjugcqie.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\cuqkgyzqpekajrjugcqie.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:3828
  • C:\Users\Admin\AppData\Local\Temp\pexohwuieqtgmrgoxq.exe
    C:\Users\Admin\AppData\Local\Temp\pexohwuieqtgmrgoxq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1640
  • C:\Users\Admin\AppData\Local\Temp\nezsneeusglaipgqbwja.exe
    C:\Users\Admin\AppData\Local\Temp\nezsneeusglaipgqbwja.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2504

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

        Query Registry

        1
        T1012

        System Information Discovery

        3
        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

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        Downloads

        cekouwhirqggzrtokqoqwagitud.ssl
        • Path C:\Program Files (x86)\cekouwhirqggzrtokqoqwagitud.ssl
        • Size 280B
        • SHA256 9d40353330d4b02ee0d65577b884fc0c079656862d6f1c69e5ab6a8b9a392465
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        cekouwhirqggzrtokqoqwagitud.ssl
        • Path C:\Program Files (x86)\cekouwhirqggzrtokqoqwagitud.ssl
        • Size 280B
        • SHA256 76b06c7d9fac860257b7f383b4967bdb46b69fdf9c441764e5f8422007c79a38
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        aemsaer.exe
        • Path C:\Users\Admin\AppData\Local\Temp\aemsaer.exe
        • Size 728KB
        • SHA256 df3a938752f570e6965245657b0bbc811ebb2b2804f47e5d1beb085c1a8030f3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        agfdlmoakqp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
        • Size 320KB
        • SHA256 ebd48d7963ef36dad10d17343a76666766b22ea8cc49c51a26859b2983466e37
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        cekouwhirqggzrtokqoqwagitud.ssl
        • Path C:\Users\Admin\AppData\Local\cekouwhirqggzrtokqoqwagitud.ssl
        • Size 280B
        • SHA256 6b29bbc904fe0f883a4b1eed5d4079eba8d9ba9db59acd4840ebc96b11e5759a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        cekouwhirqggzrtokqoqwagitud.ssl
        • Path C:\Users\Admin\AppData\Local\cekouwhirqggzrtokqoqwagitud.ssl
        • Size 280B
        • SHA256 fd2262f89d977fb48d93e827977ec4c83329a59e9f7e769f9bea35822374a5db
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        zmdsjwseyijuyboubsbofulyugaklwadqwdudq.wna
        • Path C:\Users\Admin\AppData\Local\zmdsjwseyijuyboubsbofulyugaklwadqwdudq.wna
        • Size 4KB
        • SHA256 dd4548d17bd8b8a8725fb8e8c2871695e109686ffb491c494b84d7f6181d5157
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pexohwuieqtgmrgoxq.exe
        • Path C:\Windows\SysWOW64\pexohwuieqtgmrgoxq.exe
        • Size 1016KB
        • SHA256 1adfe64c20a9e0ec8625ef833b81288dbb1af3ebe44bf10903a87b372937d2e5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        aemsaer.bat
        • Path C:\aemsaer.bat
        • Size 520KB
        • SHA256 b730fcb9b893fc848bc48e51b266b96d9c1e71cf49076cd74634e364b577db06
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download