Overview

overview

10

Static

static

3

tmpoin6zd0r.exe

windows10-ltsc_2021-x64

10

tmpoin6zd0r.exe

windows10-2004-x64

10

tmpoin6zd0r.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    22/05/2026, 15:08

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General

  • Target
    tmpoin6zd0r.exe
  • Size 832KB
  • Sample260522-sjdceae16p
  • SHA256 7be6ccadfe39aff45029a30fe34b3c87ac49ebbad791c34e2ff8bb30e7e07721
  • 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 37 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 7 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 9 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\tmpoin6zd0r.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpoin6zd0r.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\users\admin\appdata\local\temp\tmpoin6zd0r.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:3668
      • C:\Users\Admin\AppData\Local\Temp\ualrcen.exe
        "C:\Users\Admin\AppData\Local\Temp\ualrcen.exe" "-C:\Users\Admin\AppData\Local\Temp\ticrlwoetiopvuyc.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:3156
      • C:\Users\Admin\AppData\Local\Temp\ualrcen.exe
        "C:\Users\Admin\AppData\Local\Temp\ualrcen.exe" "-C:\Users\Admin\AppData\Local\Temp\ticrlwoetiopvuyc.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:4536
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\users\admin\appdata\local\temp\tmpoin6zd0r.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:3920
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:2488
  • C:\Windows\aqlbwibsiyfhootyx.exe
    aqlbwibsiyfhootyx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4408
  • C:\Windows\hayrpeaungqvfiqyardw.exe
    hayrpeaungqvfiqyardw.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\windows\hayrpeaungqvfiqyardw.exe*."
      2⤵
      • Executes dropped EXE
      PID:524
  • C:\Windows\umjbymhasktxgipwxny.exe
    umjbymhasktxgipwxny.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3692
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\windows\umjbymhasktxgipwxny.exe*."
      2⤵
      • Executes dropped EXE
      PID:1292
  • C:\Users\Admin\AppData\Local\Temp\ticrlwoetiopvuyc.exe
    C:\Users\Admin\AppData\Local\Temp\ticrlwoetiopvuyc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:468
  • C:\Windows\wqpjiyvqkepvgktcfxked.exe
    wqpjiyvqkepvgktcfxked.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4184
  • C:\Users\Admin\AppData\Local\Temp\wqpjiyvqkepvgktcfxked.exe
    C:\Users\Admin\AppData\Local\Temp\wqpjiyvqkepvgktcfxked.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4944
  • C:\Windows\jawnjwqizqybjkqwwl.exe
    jawnjwqizqybjkqwwl.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1380
  • C:\Windows\jawnjwqizqybjkqwwl.exe
    jawnjwqizqybjkqwwl.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\windows\jawnjwqizqybjkqwwl.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:4152
  • C:\Windows\hayrpeaungqvfiqyardw.exe
    hayrpeaungqvfiqyardw.exe
    1⤵
    • Executes dropped EXE
    PID:4916
  • C:\Windows\ticrlwoetiopvuyc.exe
    ticrlwoetiopvuyc.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\windows\ticrlwoetiopvuyc.exe*."
      2⤵
      • Executes dropped EXE
      PID:1000
  • C:\Users\Admin\AppData\Local\Temp\jawnjwqizqybjkqwwl.exe
    C:\Users\Admin\AppData\Local\Temp\jawnjwqizqybjkqwwl.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2072
  • C:\Windows\ticrlwoetiopvuyc.exe
    ticrlwoetiopvuyc.exe
    1⤵
    • Executes dropped EXE
    PID:4776
  • C:\Users\Admin\AppData\Local\Temp\aqlbwibsiyfhootyx.exe
    C:\Users\Admin\AppData\Local\Temp\aqlbwibsiyfhootyx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1140
  • C:\Windows\wqpjiyvqkepvgktcfxked.exe
    wqpjiyvqkepvgktcfxked.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\windows\wqpjiyvqkepvgktcfxked.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:384
  • C:\Users\Admin\AppData\Local\Temp\umjbymhasktxgipwxny.exe
    C:\Users\Admin\AppData\Local\Temp\umjbymhasktxgipwxny.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4328
  • C:\Windows\umjbymhasktxgipwxny.exe
    umjbymhasktxgipwxny.exe
    1⤵
    • Executes dropped EXE
    PID:3540
  • C:\Users\Admin\AppData\Local\Temp\hayrpeaungqvfiqyardw.exe
    C:\Users\Admin\AppData\Local\Temp\hayrpeaungqvfiqyardw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1288
  • C:\Windows\aqlbwibsiyfhootyx.exe
    aqlbwibsiyfhootyx.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
      "C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe" "c:\windows\aqlbwibsiyfhootyx.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:1140

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

        fbcwvunvplm.exe
        • Path C:\Users\Admin\AppData\Local\Temp\fbcwvunvplm.exe
        • Size 320KB
        • SHA256 c8c542ac3f6526d1501c2b9d6262bfa029a1ac0d9dd6b3c1965977abdd8bd126
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ualrcen.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ualrcen.exe
        • Size 704KB
        • SHA256 75b6b675037e5b08262d247d737a2065891b431de51a71bc4b9deca5a61a5ebc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        tcqznseoxggbbusqipraoxlqcmveezzs.ogn
        • Path C:\Users\Admin\AppData\Local\tcqznseoxggbbusqipraoxlqcmveezzs.ogn
        • Size 3KB
        • SHA256 be9df08e731014a52ff4e8202cf04eeb681a0fb704825f5a38d5ec29b3d586bd
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ywzxauvusqfpemzmtpgeh.icd
        • Path C:\Users\Admin\AppData\Local\ywzxauvusqfpemzmtpgeh.icd
        • Size 272B
        • SHA256 127f43bcad42d22eadae107d793c3a494b19f86f687339b87fced6439de87237
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        jawnjwqizqybjkqwwl.exe
        • Path C:\Windows\SysWOW64\jawnjwqizqybjkqwwl.exe
        • Size 832KB
        • SHA256 7be6ccadfe39aff45029a30fe34b3c87ac49ebbad791c34e2ff8bb30e7e07721
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download