Overview

overview

10

Static

static

3

tmpm7x3fgr7.exe

windows10-ltsc_2021-x64

10

tmpm7x3fgr7.exe

windows10-2004-x64

10

tmpm7x3fgr7.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
    02/06/2026, 03:20

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General

  • Target
    tmpm7x3fgr7.exe
  • Size 564KB
  • Sample260602-dvqdsad13p
  • SHA256 83b1509fa21ce9a2c1e6d68b5d256f6bd1242809a7cec25c81b702aebbd85343
  • 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 34 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 10 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 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 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 42 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpm7x3fgr7.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpm7x3fgr7.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\users\admin\appdata\local\temp\tmpm7x3fgr7.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:2648
      • C:\Users\Admin\AppData\Local\Temp\zeiqvfp.exe
        "C:\Users\Admin\AppData\Local\Temp\zeiqvfp.exe" "-C:\Users\Admin\AppData\Local\Temp\ymzqexqeqivkaoye.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:2268
      • C:\Users\Admin\AppData\Local\Temp\zeiqvfp.exe
        "C:\Users\Admin\AppData\Local\Temp\zeiqvfp.exe" "-C:\Users\Admin\AppData\Local\Temp\ymzqexqeqivkaoye.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:4720
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\users\admin\appdata\local\temp\tmpm7x3fgr7.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:3480
  • C:\Windows\fuiapjdsfymctitae.exe
    fuiapjdsfymctitae.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1488
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:4064
  • C:\Windows\oetmcxsiwqfwoeqydh.exe
    oetmcxsiwqfwoeqydh.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3152
  • C:\Windows\mevqifcukgxqkcqahnia.exe
    mevqifcukgxqkcqahnia.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\mevqifcukgxqkcqahnia.exe*."
      2⤵
      • Executes dropped EXE
      PID:4144
  • C:\Users\Admin\AppData\Local\Temp\fuiapjdsfymctitae.exe
    C:\Users\Admin\AppData\Local\Temp\fuiapjdsfymctitae.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3728
  • C:\Windows\oetmcxsiwqfwoeqydh.exe
    oetmcxsiwqfwoeqydh.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\oetmcxsiwqfwoeqydh.exe*."
      2⤵
      • Executes dropped EXE
      PID:3312
  • C:\Users\Admin\AppData\Local\Temp\mevqifcukgxqkcqahnia.exe
    C:\Users\Admin\AppData\Local\Temp\mevqifcukgxqkcqahnia.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1296
  • C:\Windows\zqgarnjapkaslcpyejd.exe
    zqgarnjapkaslcpyejd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3648
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\zqgarnjapkaslcpyejd.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:1620
  • C:\Windows\bumibzxqhewqletemtpia.exe
    bumibzxqhewqletemtpia.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3356
  • C:\Windows\bumibzxqhewqletemtpia.exe
    bumibzxqhewqletemtpia.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4316
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\bumibzxqhewqletemtpia.exe*."
      2⤵
      • Executes dropped EXE
      PID:4984
  • C:\Windows\ymzqexqeqivkaoye.exe
    ymzqexqeqivkaoye.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3964
  • C:\Windows\mevqifcukgxqkcqahnia.exe
    mevqifcukgxqkcqahnia.exe
    1⤵
    • Executes dropped EXE
    PID:3152
  • C:\Users\Admin\AppData\Local\Temp\zqgarnjapkaslcpyejd.exe
    C:\Users\Admin\AppData\Local\Temp\zqgarnjapkaslcpyejd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:980
  • C:\Windows\zqgarnjapkaslcpyejd.exe
    zqgarnjapkaslcpyejd.exe
    1⤵
    • Executes dropped EXE
    PID:3380
  • C:\Windows\ymzqexqeqivkaoye.exe
    ymzqexqeqivkaoye.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:720
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\ymzqexqeqivkaoye.exe*."
      2⤵
      • Executes dropped EXE
      PID:2036
  • C:\Windows\fuiapjdsfymctitae.exe
    fuiapjdsfymctitae.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\fuiapjdsfymctitae.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:2392
  • C:\Users\Admin\AppData\Local\Temp\ymzqexqeqivkaoye.exe
    C:\Users\Admin\AppData\Local\Temp\ymzqexqeqivkaoye.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3248
  • C:\Users\Admin\AppData\Local\Temp\bumibzxqhewqletemtpia.exe
    C:\Users\Admin\AppData\Local\Temp\bumibzxqhewqletemtpia.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1404
  • C:\Users\Admin\AppData\Local\Temp\oetmcxsiwqfwoeqydh.exe
    C:\Users\Admin\AppData\Local\Temp\oetmcxsiwqfwoeqydh.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4676

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

        lmmqrxdediiknoleujnoostzf.fkk
        • Path C:\Program Files (x86)\lmmqrxdediiknoleujnoostzf.fkk
        • Size 280B
        • SHA256 982120d37b43ded277074f82c28b850d04d2c7dc4c676d52f6bc01bb821bab9a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        lmmqrxdediiknoleujnoostzf.fkk
        • Path C:\Program Files (x86)\lmmqrxdediiknoleujnoostzf.fkk
        • Size 280B
        • SHA256 784b5cca01db0f8c246259d405509e678cf4ac92d9074fb1ba44f0cb61b59c94
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        lmmqrxdediiknoleujnoostzf.fkk
        • Path C:\Program Files (x86)\lmmqrxdediiknoleujnoostzf.fkk
        • Size 280B
        • SHA256 12d068e6574a6e4d156e0ef9a69b9684b8dab7ef214ff92ddfdccf7693403c1b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        mwhqvwurwgr.exe
        • Path C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        • Size 320KB
        • SHA256 8386275168119042684fe2312167d86676c45a8f85788e40d640a2ba8d04c5d1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX3914.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\qajwgvkucqzk\RCX3914.tmp
        • Size 1.1MB
        • SHA256 3beebf79e7e8d6a11387e271a48fbd75c20d46051eee6f572451d202dc9b4af1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        zeiqvfp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\zeiqvfp.exe
        • Size 708KB
        • SHA256 feeb54c4f8aa7b90ea53aab4a1a4215a1e8d5c01c9b82225eb03f3b81f93f7c1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        lmmqrxdediiknoleujnoostzf.fkk
        • Path C:\Users\Admin\AppData\Local\lmmqrxdediiknoleujnoostzf.fkk
        • Size 280B
        • SHA256 fd25e6a0e95d9a6ca143cc2dc4e4c57261c8bf0375df51c58283d0fd0f0cff87
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qcncofwisitgugosttiufugxoakalymygkll.mxm
        • Path C:\Users\Admin\AppData\Local\qcncofwisitgugosttiufugxoakalymygkll.mxm
        • Size 4KB
        • SHA256 20951b62f4aa2c6406035d1aa5715e0816d4f94511baaeebe04ee657ea607b30
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        oetmcxsiwqfwoeqydh.exe
        • Path C:\Windows\SysWOW64\oetmcxsiwqfwoeqydh.exe
        • Size 564KB
        • SHA256 83b1509fa21ce9a2c1e6d68b5d256f6bd1242809a7cec25c81b702aebbd85343
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download