Overview

overview

10

Static

static

3

tmp9fsplm0t.exe

windows10-ltsc_2021-x64

10

tmp9fsplm0t.exe

windows10-2004-x64

10

tmp9fsplm0t.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    157s
  • 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, 15:20

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    tmp9fsplm0t.exe
  • Size 548KB
  • Sample260522-sq37eahy4t
  • SHA256 47b0c68c97a03bd0a32d47e9f3b220078bf78d693b1ea661a29b8f8e13f4124d
  • 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 5 IoCs
    persistence
  • UAC bypass 3 TTPs 14 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 32 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 10 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 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 39 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 39 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 17 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 40 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp9fsplm0t.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp9fsplm0t.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:6136
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\users\admin\appdata\local\temp\tmp9fsplm0t.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:5112
      • C:\Users\Admin\AppData\Local\Temp\vaitq.exe
        "C:\Users\Admin\AppData\Local\Temp\vaitq.exe" "-C:\Users\Admin\AppData\Local\Temp\sibxfbqavlyvumgd.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:448
      • C:\Users\Admin\AppData\Local\Temp\vaitq.exe
        "C:\Users\Admin\AppData\Local\Temp\vaitq.exe" "-C:\Users\Admin\AppData\Local\Temp\sibxfbqavlyvumgd.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:2460
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\users\admin\appdata\local\temp\tmp9fsplm0t.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:1116
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:2600
  • C:\Windows\tmihsrjwunddfaxxkex.exe
    tmihsrjwunddfaxxkex.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2668
  • C:\Windows\gaxxjjcqpjabeayznicz.exe
    gaxxjjcqpjabeayznicz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3988
  • C:\Windows\gaxxjjcqpjabeayznicz.exe
    gaxxjjcqpjabeayznicz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\gaxxjjcqpjabeayznicz.exe*."
      2⤵
      • Executes dropped EXE
      PID:1252
  • C:\Windows\iavtdbsebtihicyxjc.exe
    iavtdbsebtihicyxjc.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5128
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\iavtdbsebtihicyxjc.exe*."
      2⤵
      • Executes dropped EXE
      PID:4816
  • C:\Users\Admin\AppData\Local\Temp\sibxfbqavlyvumgd.exe
    C:\Users\Admin\AppData\Local\Temp\sibxfbqavlyvumgd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2084
  • C:\Users\Admin\AppData\Local\Temp\iavtdbsebtihicyxjc.exe
    C:\Users\Admin\AppData\Local\Temp\iavtdbsebtihicyxjc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3444
  • C:\Windows\tmihsrjwunddfaxxkex.exe
    tmihsrjwunddfaxxkex.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5140
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\tmihsrjwunddfaxxkex.exe*."
      2⤵
      • Executes dropped EXE
      PID:5764
  • C:\Windows\sibxfbqavlyvumgd.exe
    sibxfbqavlyvumgd.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\sibxfbqavlyvumgd.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:3292
  • C:\Users\Admin\AppData\Local\Temp\zqkhqndokbpnngbzk.exe
    C:\Users\Admin\AppData\Local\Temp\zqkhqndokbpnngbzk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2032
  • C:\Windows\sibxfbqavlyvumgd.exe
    sibxfbqavlyvumgd.exe
    1⤵
    • Executes dropped EXE
    PID:884
  • C:\Windows\zqkhqndokbpnngbzk.exe
    zqkhqndokbpnngbzk.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1880
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\zqkhqndokbpnngbzk.exe*."
      2⤵
      • Executes dropped EXE
      PID:5988
  • C:\Users\Admin\AppData\Local\Temp\gaxxjjcqpjabeayznicz.exe
    C:\Users\Admin\AppData\Local\Temp\gaxxjjcqpjabeayznicz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:964
  • C:\Windows\iavtdbsebtihicyxjc.exe
    iavtdbsebtihicyxjc.exe
    1⤵
    • Executes dropped EXE
    PID:1304
  • C:\Users\Admin\AppData\Local\Temp\tmihsrjwunddfaxxkex.exe
    C:\Users\Admin\AppData\Local\Temp\tmihsrjwunddfaxxkex.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4616
  • C:\Windows\vqopcdxmmhzbfcbdsojhi.exe
    vqopcdxmmhzbfcbdsojhi.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\vqopcdxmmhzbfcbdsojhi.exe*."
      2⤵
      • Executes dropped EXE
      PID:3844
  • C:\Windows\vqopcdxmmhzbfcbdsojhi.exe
    vqopcdxmmhzbfcbdsojhi.exe
    1⤵
    • Executes dropped EXE
    PID:5044
  • C:\Users\Admin\AppData\Local\Temp\vqopcdxmmhzbfcbdsojhi.exe
    C:\Users\Admin\AppData\Local\Temp\vqopcdxmmhzbfcbdsojhi.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3560
  • C:\Windows\zqkhqndokbpnngbzk.exe
    zqkhqndokbpnngbzk.exe
    1⤵
    • Executes dropped EXE
    PID:3452

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

        mqxhdnqoxbcnagozxcgnxtdgen.sdq
        • Path C:\Program Files (x86)\mqxhdnqoxbcnagozxcgnxtdgen.sdq
        • Size 280B
        • SHA256 d3cc72208c2bcaf253de616ab9e97ea7f3401cf79e7301a64ff7201a50e15155
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        mqxhdnqoxbcnagozxcgnxtdgen.sdq
        • Path C:\Program Files (x86)\mqxhdnqoxbcnagozxcgnxtdgen.sdq
        • Size 280B
        • SHA256 116f2371e2a1f6f4b8db01d787ed6289d15a9bff873b3b97e1521ec1d786954e
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        sasmzoglckc.exe
        • Path C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
        • Size 320KB
        • SHA256 8ad380da1dfa23f9b04a5f1f85f26e0528dad353eedf89f7e8fa1ae8dd44249d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        vaitq.exe
        • Path C:\Users\Admin\AppData\Local\Temp\vaitq.exe
        • Size 708KB
        • SHA256 30b0035c2cde34f86ace83068f567be3ff372a860d1b8fcc75939c9f249d2f1c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        mqxhdnqoxbcnagozxcgnxtdgen.sdq
        • Path C:\Users\Admin\AppData\Local\mqxhdnqoxbcnagozxcgnxtdgen.sdq
        • Size 280B
        • SHA256 151810ee4678a759ad17bd599e4b7cbc25933e3c96eb66d733d111aa7003c976
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ncupwrfoixjfdunjsixpkrmajdseaypiendsk.mhv
        • Path C:\Users\Admin\AppData\Local\ncupwrfoixjfdunjsixpkrmajdseaypiendsk.mhv
        • Size 4KB
        • SHA256 54e290c8caa3005a49dcd49b0254e0997dc9e430e8208f3a088239e3e280bc43
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        iavtdbsebtihicyxjc.exe
        • Path C:\Windows\SysWOW64\iavtdbsebtihicyxjc.exe
        • Size 548KB
        • SHA256 47b0c68c97a03bd0a32d47e9f3b220078bf78d693b1ea661a29b8f8e13f4124d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download