Overview

overview

10

Static

static

3

tmpqhghzawv.exe

windows10-ltsc_2021-x64

10

tmpqhghzawv.exe

windows10-2004-x64

10

tmpqhghzawv.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • 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, 03:51

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General

  • Target
    tmpqhghzawv.exe
  • Size 476KB
  • Sample260602-eekc9sdt6x
  • SHA256 82152e68c39ffa853a1c37a91298921e7707bf0ce29fb0e18668a08d95a7f166
  • 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 7 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\tmpqhghzawv.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpqhghzawv.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4728
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\users\admin\appdata\local\temp\tmpqhghzawv.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:1824
      • C:\Users\Admin\AppData\Local\Temp\muuakl.exe
        "C:\Users\Admin\AppData\Local\Temp\muuakl.exe" "-C:\Users\Admin\AppData\Local\Temp\yqaqkvlfzivvlibq.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 Location Discovery: System Language Discovery
        • System policy modification
        PID:4100
      • C:\Users\Admin\AppData\Local\Temp\muuakl.exe
        "C:\Users\Admin\AppData\Local\Temp\muuakl.exe" "-C:\Users\Admin\AppData\Local\Temp\yqaqkvlfzivvlibq.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:4292
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\users\admin\appdata\local\temp\tmpqhghzawv.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:864
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3996
  • C:\Windows\yqaqkvlfzivvlibq.exe
    yqaqkvlfzivvlibq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\yqaqkvlfzivvlibq.exe*."
      2⤵
      • Executes dropped EXE
      PID:4468
  • C:\Users\Admin\AppData\Local\Temp\yqaqkvlfzivvlibq.exe
    C:\Users\Admin\AppData\Local\Temp\yqaqkvlfzivvlibq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1336
  • C:\Windows\oiumivnjfqfhzytkiq.exe
    oiumivnjfqfhzytkiq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\oiumivnjfqfhzytkiq.exe*."
      2⤵
      • Executes dropped EXE
      PID:1788
  • C:\Windows\yqaqkvlfzivvlibq.exe
    yqaqkvlfzivvlibq.exe
    1⤵
    • Executes dropped EXE
    PID:4232
  • C:\Users\Admin\AppData\Local\Temp\fyjavhytoymnecwmj.exe
    C:\Users\Admin\AppData\Local\Temp\fyjavhytoymnecwmj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2636
  • C:\Windows\oiumivnjfqfhzytkiq.exe
    oiumivnjfqfhzytkiq.exe
    1⤵
    • Executes dropped EXE
    PID:2544
  • C:\Windows\zuhaxlebykadwwskjsd.exe
    zuhaxlebykadwwskjsd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4480
  • C:\Windows\bynihxsrqewbwywqrcpmb.exe
    bynihxsrqewbwywqrcpmb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\bynihxsrqewbwywqrcpmb.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:1316
  • C:\Windows\bynihxsrqewbwywqrcpmb.exe
    bynihxsrqewbwywqrcpmb.exe
    1⤵
    • Executes dropped EXE
    PID:4512
  • C:\Windows\fyjavhytoymnecwmj.exe
    fyjavhytoymnecwmj.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4516
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\fyjavhytoymnecwmj.exe*."
      2⤵
      • Executes dropped EXE
      PID:1356
  • C:\Users\Admin\AppData\Local\Temp\zuhaxlebykadwwskjsd.exe
    C:\Users\Admin\AppData\Local\Temp\zuhaxlebykadwwskjsd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3552
  • C:\Users\Admin\AppData\Local\Temp\oiumivnjfqfhzytkiq.exe
    C:\Users\Admin\AppData\Local\Temp\oiumivnjfqfhzytkiq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2324
  • C:\Windows\fyjavhytoymnecwmj.exe
    fyjavhytoymnecwmj.exe
    1⤵
    • Executes dropped EXE
    PID:1600
  • C:\Users\Admin\AppData\Local\Temp\miwqodxvtgxbvwtmmwie.exe
    C:\Users\Admin\AppData\Local\Temp\miwqodxvtgxbvwtmmwie.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3312
  • C:\Users\Admin\AppData\Local\Temp\bynihxsrqewbwywqrcpmb.exe
    C:\Users\Admin\AppData\Local\Temp\bynihxsrqewbwywqrcpmb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2352
  • C:\Windows\zuhaxlebykadwwskjsd.exe
    zuhaxlebykadwwskjsd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\zuhaxlebykadwwskjsd.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:4800
  • C:\Windows\miwqodxvtgxbvwtmmwie.exe
    miwqodxvtgxbvwtmmwie.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1892
  • C:\Windows\miwqodxvtgxbvwtmmwie.exe
    miwqodxvtgxbvwtmmwie.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\miwqodxvtgxbvwtmmwie.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:2304

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

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

        muuakl.exe
        • Path C:\Users\Admin\AppData\Local\Temp\muuakl.exe
        • Size 712KB
        • SHA256 ad64bd48f4f89e7d1e4785bc162eb2906c5a78e42dc952a2d73f2286c43fa90d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        lqnqxvyfmiivyioqzsnspszxa.okk
        • Path C:\Users\Admin\AppData\Local\lqnqxvyfmiivyioqzsnspszxa.okk
        • Size 272B
        • SHA256 fb8d0bfb05376515b92892ab5cdef01fac665683bc6599d51f19d916f53a972a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qgocudrjbitrfareyciygumvjbtaljxsjwqu.qym
        • Path C:\Users\Admin\AppData\Local\qgocudrjbitrfareyciygumvjbtaljxsjwqu.qym
        • Size 3KB
        • SHA256 54a42aa344bc864c54f2c48d3f8081c4715023631f00c801ccd26e47bc8e1c7b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        oiumivnjfqfhzytkiq.exe
        • Path C:\Windows\SysWOW64\oiumivnjfqfhzytkiq.exe
        • Size 476KB
        • SHA256 82152e68c39ffa853a1c37a91298921e7707bf0ce29fb0e18668a08d95a7f166
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download