Overview

overview

10

Static

static

3

tmpumq_oli5.exe

windows10-2004-x64

10

tmpumq_oli5.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 14:50

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General

  • Target
    tmpumq_oli5.exe
  • Size 952KB
  • Sample260522-r71beagy71
  • SHA256 8c0fa107cba6fde3e08b6db88e6b80d991dee1c948b7324093ca74420c879e94
  • 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
  • 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 64 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 64 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\tmpumq_oli5.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpumq_oli5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4780
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\users\admin\appdata\local\temp\tmpumq_oli5.exe*"
      2⤵
      • 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
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4716
      • C:\Users\Admin\AppData\Local\Temp\ipbdfl.exe
        "C:\Users\Admin\AppData\Local\Temp\ipbdfl.exe" "-c:\users\admin\appdata\local\temp\tmpumq_oli5.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:4052
      • C:\Users\Admin\AppData\Local\Temp\ipbdfl.exe
        "C:\Users\Admin\AppData\Local\Temp\ipbdfl.exe" "-c:\users\admin\appdata\local\temp\tmpumq_oli5.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:3932
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\users\admin\appdata\local\temp\tmpumq_oli5.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:1952
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:4952
  • C:\Windows\kdbpdvnnfqefrmrdyx.exe
    kdbpdvnnfqefrmrdyx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:760
  • C:\Users\Admin\AppData\Local\Temp\kdbpdvnnfqefrmrdyx.exe
    C:\Users\Admin\AppData\Local\Temp\kdbpdvnnfqefrmrdyx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2432
  • C:\Windows\btqdqhyxoyllwqufz.exe
    btqdqhyxoyllwqufz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\btqdqhyxoyllwqufz.exe*."
      2⤵
      • Executes dropped EXE
      PID:4528
  • C:\Windows\xtulcxsvqevzomujhjlhi.exe
    xtulcxsvqevzomujhjlhi.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\xtulcxsvqevzomujhjlhi.exe*."
      2⤵
      • Executes dropped EXE
      PID:1344
  • C:\Windows\ulhtfvljziutdwzj.exe
    ulhtfvljziutdwzj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4008
  • C:\Users\Admin\AppData\Local\Temp\ulhtfvljziutdwzj.exe
    C:\Users\Admin\AppData\Local\Temp\ulhtfvljziutdwzj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3964
  • C:\Windows\btqdqhyxoyllwqufz.exe
    btqdqhyxoyllwqufz.exe
    1⤵
    • Executes dropped EXE
    PID:2400
  • C:\Windows\iddtjdxztgwznkrfcdez.exe
    iddtjdxztgwznkrfcdez.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:904
  • C:\Users\Admin\AppData\Local\Temp\xtulcxsvqevzomujhjlhi.exe
    C:\Users\Admin\AppData\Local\Temp\xtulcxsvqevzomujhjlhi.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3108
  • C:\Windows\kdbpdvnnfqefrmrdyx.exe
    kdbpdvnnfqefrmrdyx.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3776
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\kdbpdvnnfqefrmrdyx.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:852
  • C:\Windows\xtulcxsvqevzomujhjlhi.exe
    xtulcxsvqevzomujhjlhi.exe
    1⤵
    • Executes dropped EXE
    PID:4824
  • C:\Users\Admin\AppData\Local\Temp\btqdqhyxoyllwqufz.exe
    C:\Users\Admin\AppData\Local\Temp\btqdqhyxoyllwqufz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2936
  • C:\Windows\iddtjdxztgwznkrfcdez.exe
    iddtjdxztgwznkrfcdez.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\iddtjdxztgwznkrfcdez.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:1592
  • C:\Users\Admin\AppData\Local\Temp\iddtjdxztgwznkrfcdez.exe
    C:\Users\Admin\AppData\Local\Temp\iddtjdxztgwznkrfcdez.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4752
  • C:\Windows\vpodslefykzbokqdzzz.exe
    vpodslefykzbokqdzzz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:836
  • C:\Windows\ulhtfvljziutdwzj.exe
    ulhtfvljziutdwzj.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4916
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\ulhtfvljziutdwzj.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:3196
  • C:\Windows\vpodslefykzbokqdzzz.exe
    vpodslefykzbokqdzzz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3660
    • C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
      "C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe" "c:\windows\vpodslefykzbokqdzzz.exe*."
      2⤵
      • Executes dropped EXE
      PID:800
  • C:\Users\Admin\AppData\Local\Temp\vpodslefykzbokqdzzz.exe
    C:\Users\Admin\AppData\Local\Temp\vpodslefykzbokqdzzz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2408

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

        System Information Discovery

        2
        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

        xdopqvansqrfemedlxjpabchmze.drq
        • Path C:\Program Files (x86)\xdopqvansqrfemedlxjpabchmze.drq
        • Size 120B
        • SHA256 e53bb8e713abee2d6f513c3ae257520b869128df11930bf0d02529f28117631c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        xdopqvansqrfemedlxjpabchmze.drq
        • Path C:\Program Files (x86)\xdopqvansqrfemedlxjpabchmze.drq
        • Size 120B
        • SHA256 407b70081fa0c415cb19698d30e7783fbae4e481f7f6ee383ceaf433f5f08c42
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        xdopqvansqrfemedlxjpabchmze.drq
        • Path C:\Program Files (x86)\xdopqvansqrfemedlxjpabchmze.drq
        • Size 120B
        • SHA256 cf986d1d42f8860a493a50fb6ee42b55122129c23e89e5d6797540bf5710da9b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ipbdfl.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ipbdfl.exe
        • Size 676KB
        • SHA256 0149d068addb26f7fda0fa1ee6f22e3c68b73bba61d6cb28513bbfd6e68da360
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        lfkywbphvpu.exe
        • Path C:\Users\Admin\AppData\Local\Temp\lfkywbphvpu.exe
        • Size 308KB
        • SHA256 6fff20aabe8265b6e811c9dbcb987f9c15cf07d1d8b80ced7b287d96900f5c62
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ulhtfvljziutdwzjczwnjvhxnlbkwvfyblebyp.xjz
        • Path C:\Users\Admin\AppData\Local\ulhtfvljziutdwzjczwnjvhxnlbkwvfyblebyp.xjz
        • Size 3KB
        • SHA256 ce9f7efa45a2aca9ad37a7e364dfbc20a7c54e751b416f70c99516c56714eee9
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        xdopqvansqrfemedlxjpabchmze.drq
        • Path C:\Users\Admin\AppData\Local\xdopqvansqrfemedlxjpabchmze.drq
        • Size 120B
        • SHA256 c12478cd5e210c1539e6898fa5f85bade05c9fe2919665650657f786b597bb68
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        kdbpdvnnfqefrmrdyx.exe
        • Path C:\Windows\SysWOW64\kdbpdvnnfqefrmrdyx.exe
        • Size 952KB
        • SHA256 8c0fa107cba6fde3e08b6db88e6b80d991dee1c948b7324093ca74420c879e94
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        olnfxtptpewbrqzporurtl.exe
        • Path C:\Windows\olnfxtptpewbrqzporurtl.exe
        • Size 952KB
        • SHA256 978b3b18c792ac004c4e0c0ae18a9341437eb6e003891b548a4f718402dde0a4
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download