Overview

overview

10

Static

static

3

tmp_toxf6el.exe

windows10-ltsc_2021-x64

10

tmp_toxf6el.exe

windows10-2004-x64

10

tmp_toxf6el.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, 03:53

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    tmp_toxf6el.exe
  • Size 476KB
  • Sample260602-efqxfaex2q
  • SHA256 1b1f772b3fba3cc0537b5346915ffbe9668a239a310d9d37e2d938e604cc4adf
  • 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 39 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 6 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 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 44 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp_toxf6el.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp_toxf6el.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4104
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmp_toxf6el.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:4784
      • C:\Users\Admin\AppData\Local\Temp\djjqr.exe
        "C:\Users\Admin\AppData\Local\Temp\djjqr.exe" "-C:\Users\Admin\AppData\Local\Temp\arcuguqisijuybou.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:4284
      • C:\Users\Admin\AppData\Local\Temp\djjqr.exe
        "C:\Users\Admin\AppData\Local\Temp\djjqr.exe" "-C:\Users\Admin\AppData\Local\Temp\arcuguqisijuybou.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:1120
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmp_toxf6el.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:3280
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3268
  • C:\Windows\hzlergdwhyamrvjqy.exe
    hzlergdwhyamrvjqy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3044
  • C:\Users\Admin\AppData\Local\Temp\hzlergdwhyamrvjqy.exe
    C:\Users\Admin\AppData\Local\Temp\hzlergdwhyamrvjqy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4244
  • C:\Windows\qjwqeusmyqtgmrgoxq.exe
    qjwqeusmyqtgmrgoxq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4540
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\qjwqeusmyqtgmrgoxq.exe*."
      2⤵
      • Executes dropped EXE
      PID:1668
  • C:\Users\Admin\AppData\Local\Temp\arcuguqisijuybou.exe
    C:\Users\Admin\AppData\Local\Temp\arcuguqisijuybou.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1144
  • C:\Windows\ojyukccymglaipgqbwkf.exe
    ojyukccymglaipgqbwkf.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\ojyukccymglaipgqbwkf.exe*."
      2⤵
      • Executes dropped EXE
      PID:3372
  • C:\Windows\dzpmdwxujekajrjugcrnd.exe
    dzpmdwxujekajrjugcrnd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1124
  • C:\Windows\arcuguqisijuybou.exe
    arcuguqisijuybou.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1940
  • C:\Windows\ojyukccymglaipgqbwkf.exe
    ojyukccymglaipgqbwkf.exe
    1⤵
    • Executes dropped EXE
    PID:4236
  • C:\Users\Admin\AppData\Local\Temp\bvjetkjerkocjpfoysf.exe
    C:\Users\Admin\AppData\Local\Temp\bvjetkjerkocjpfoysf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:976
  • C:\Windows\dzpmdwxujekajrjugcrnd.exe
    dzpmdwxujekajrjugcrnd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4496
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\dzpmdwxujekajrjugcrnd.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:3272
  • C:\Users\Admin\AppData\Local\Temp\qjwqeusmyqtgmrgoxq.exe
    C:\Users\Admin\AppData\Local\Temp\qjwqeusmyqtgmrgoxq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4472
  • C:\Windows\arcuguqisijuybou.exe
    arcuguqisijuybou.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\arcuguqisijuybou.exe*."
      2⤵
      • Executes dropped EXE
      PID:2892
  • C:\Windows\qjwqeusmyqtgmrgoxq.exe
    qjwqeusmyqtgmrgoxq.exe
    1⤵
    • Executes dropped EXE
    PID:840
  • C:\Windows\bvjetkjerkocjpfoysf.exe
    bvjetkjerkocjpfoysf.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4396
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\bvjetkjerkocjpfoysf.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:3976
  • C:\Users\Admin\AppData\Local\Temp\dzpmdwxujekajrjugcrnd.exe
    C:\Users\Admin\AppData\Local\Temp\dzpmdwxujekajrjugcrnd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1132
  • C:\Windows\bvjetkjerkocjpfoysf.exe
    bvjetkjerkocjpfoysf.exe
    1⤵
    • Executes dropped EXE
    PID:3268
  • C:\Windows\hzlergdwhyamrvjqy.exe
    hzlergdwhyamrvjqy.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\hzlergdwhyamrvjqy.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:4332
  • C:\Users\Admin\AppData\Local\Temp\ojyukccymglaipgqbwkf.exe
    C:\Users\Admin\AppData\Local\Temp\ojyukccymglaipgqbwkf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4708

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

        agfdlmoakqp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
        • Size 320KB
        • SHA256 0cc02d34d5fd4cf892fed282f98c1ad3e7dd6159a8877ae5c46d3f834ed36060
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        djjqr.exe
        • Path C:\Users\Admin\AppData\Local\Temp\djjqr.exe
        • Size 720KB
        • SHA256 4dee67ae37e57d56932c9531f0cdb97ed9c02b04b26391fa9eff8f789af04539
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        uzyeegqwuynmevwqlqotsyyakq.shg
        • Path C:\Users\Admin\AppData\Local\uzyeegqwuynmevwqlqotsyyakq.shg
        • Size 272B
        • SHA256 0ce8d0e737c4e7259bb02df22bd1975b1b48346d302058cb60b0e7a7431b7f9a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vlvmxkfwfuuehjvagwfvfwhupgpeeortfkqgp.pgr
        • Path C:\Users\Admin\AppData\Local\vlvmxkfwfuuehjvagwfvfwhupgpeeortfkqgp.pgr
        • Size 3KB
        • SHA256 a84fa610e72c923bb195f1e6609be117193f98a4f1981b5bce452faf910f2a5c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qjwqeusmyqtgmrgoxq.exe
        • Path C:\Windows\SysWOW64\qjwqeusmyqtgmrgoxq.exe
        • Size 476KB
        • SHA256 1b1f772b3fba3cc0537b5346915ffbe9668a239a310d9d37e2d938e604cc4adf
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download