Overview

overview

10

Static

static

3

tmpzz0i2tli.exe

windows10-ltsc_2021-x64

10

tmpzz0i2tli.exe

windows10-2004-x64

10

tmpzz0i2tli.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    124s
  • max time network
    152s
  • 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, 03:30

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General

  • Target
    tmpzz0i2tli.exe
  • Size 624KB
  • Sample260602-d2hbraes7p
  • SHA256 cd95261ea21f20e835255a2beeabd6c67672c2e77fb23c2a2e9be78663d4fc8a
  • 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 4 IoCs
    persistence
  • UAC bypass 3 TTPs 13 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 28 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 27 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 8 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 8 IoCs

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

  • Drops file in System32 directory 32 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 32 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 9 IoCs
  • System policy modification 1 TTPs 38 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpzz0i2tli.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpzz0i2tli.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\users\admin\appdata\local\temp\tmpzz0i2tli.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:4604
      • C:\Users\Admin\AppData\Local\Temp\vfmqt.exe
        "C:\Users\Admin\AppData\Local\Temp\vfmqt.exe" "-C:\Users\Admin\AppData\Local\Temp\snfuicqcuhvkaoye.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:2720
      • C:\Users\Admin\AppData\Local\Temp\vfmqt.exe
        "C:\Users\Admin\AppData\Local\Temp\vfmqt.exe" "-C:\Users\Admin\AppData\Local\Temp\snfuicqcuhvkaoye.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:1888
    • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
      "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\users\admin\appdata\local\temp\tmpzz0i2tli.exe"
      2⤵
        PID:4776
    • C:\Windows\snfuicqcuhvkaoye.exe
      snfuicqcuhvkaoye.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1608
    • C:\Windows\zvoetodqjxmctitae.exe
      zvoetodqjxmctitae.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\zvoetodqjxmctitae.exe*."
        2⤵
        • Executes dropped EXE
        PID:4700
    • C:\Windows\explorer.exe
      Explorer.exe
      1⤵
      • Modifies registry class
      PID:4732
    • C:\Users\Admin\AppData\Local\Temp\vvsmfexoldwqletemtjjg.exe
      C:\Users\Admin\AppData\Local\Temp\vvsmfexoldwqletemtjjg.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4812
    • C:\Windows\trmevsjytjaslcpyejx.exe
      trmevsjytjaslcpyejx.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3256
    • C:\Users\Admin\AppData\Local\Temp\snfuicqcuhvkaoye.exe
      C:\Users\Admin\AppData\Local\Temp\snfuicqcuhvkaoye.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3172
    • C:\Windows\vvsmfexoldwqletemtjjg.exe
      vvsmfexoldwqletemtjjg.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1948
      • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\vvsmfexoldwqletemtjjg.exe*."
        2⤵
        • Executes dropped EXE
        PID:3696
    • C:\Windows\snfuicqcuhvkaoye.exe
      snfuicqcuhvkaoye.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:212
      • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\snfuicqcuhvkaoye.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:4716
    • C:\Windows\gfbumkcsofxqkcqahncb.exe
      gfbumkcsofxqkcqahncb.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3884
    • C:\Windows\vvsmfexoldwqletemtjjg.exe
      vvsmfexoldwqletemtjjg.exe
      1⤵
      • Executes dropped EXE
      PID:4256
    • C:\Windows\gfbumkcsofxqkcqahncb.exe
      gfbumkcsofxqkcqahncb.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3736
      • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\gfbumkcsofxqkcqahncb.exe*."
        2⤵
        • Executes dropped EXE
        PID:1972
    • C:\Users\Admin\AppData\Local\Temp\ifzqgcsgapfwoeqydh.exe
      C:\Users\Admin\AppData\Local\Temp\ifzqgcsgapfwoeqydh.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:932
    • C:\Windows\trmevsjytjaslcpyejx.exe
      trmevsjytjaslcpyejx.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1184
      • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\trmevsjytjaslcpyejx.exe*."
        2⤵
        • Executes dropped EXE
        PID:4620
    • C:\Users\Admin\AppData\Local\Temp\trmevsjytjaslcpyejx.exe
      C:\Users\Admin\AppData\Local\Temp\trmevsjytjaslcpyejx.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2668
    • C:\Windows\ifzqgcsgapfwoeqydh.exe
      ifzqgcsgapfwoeqydh.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
        "C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe" "c:\windows\ifzqgcsgapfwoeqydh.exe*."
        2⤵
        • Executes dropped EXE
        PID:2472
    • C:\Windows\zvoetodqjxmctitae.exe
      zvoetodqjxmctitae.exe
      1⤵
      • Executes dropped EXE
      PID:4408
    • C:\Users\Admin\AppData\Local\Temp\gfbumkcsofxqkcqahncb.exe
      C:\Users\Admin\AppData\Local\Temp\gfbumkcsofxqkcqahncb.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1804
    • C:\Windows\ifzqgcsgapfwoeqydh.exe
      ifzqgcsgapfwoeqydh.exe
      1⤵
      • Executes dropped EXE
      PID:888
    • C:\Users\Admin\AppData\Local\Temp\zvoetodqjxmctitae.exe
      C:\Users\Admin\AppData\Local\Temp\zvoetodqjxmctitae.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1428

    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

          mwhqvwurwgr.exe
          • Path C:\Users\Admin\AppData\Local\Temp\mwhqvwurwgr.exe
          • Size 320KB
          • SHA256 daededa100fe50e40eb771796bc1448fe0e41b5e8427a1b52f765b77460b9a43
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          vfmqt.exe
          • Path C:\Users\Admin\AppData\Local\Temp\vfmqt.exe
          • Size 688KB
          • SHA256 e03223e7d0a73cf6613e0fdb59fae49fb7b292c8a285cff3196f9b02835a3f3a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          fnsuvcdchhiknoleujhpuwxef.jjk
          • Path C:\Users\Admin\AppData\Local\fnsuvcdchhiknoleujhpuwxef.jjk
          • Size 280B
          • SHA256 114b0cd8268d8ebdcc32726bca98305c8c1e368824e1bb399e4f8d034725de94
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          kdtgskwgwhtgugosttcvlykcoyozlymygkll.ndq
          • Path C:\Users\Admin\AppData\Local\kdtgskwgwhtgugosttcvlykcoyozlymygkll.ndq
          • Size 4KB
          • SHA256 11b737b2da703795243532e1cc4754c8f561f40e05219bbacff2e746762b3cf6
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ifzqgcsgapfwoeqydh.exe
          • Path C:\Windows\SysWOW64\ifzqgcsgapfwoeqydh.exe
          • Size 624KB
          • SHA256 cd95261ea21f20e835255a2beeabd6c67672c2e77fb23c2a2e9be78663d4fc8a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download