Overview

overview

10

Static

static

3

tmpea3_0o5w.exe

windows10-ltsc_2021-x64

10

tmpea3_0o5w.exe

windows10-2004-x64

10

tmpea3_0o5w.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • 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, 02:40

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General

  • Target
    tmpea3_0o5w.exe
  • Size 548KB
  • Sample260602-c6bt4ab16x
  • SHA256 93dad180c872ea5559bda259877c595b25653a14ec5bdb86ddb9f3d3c0fb4585
  • 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 6 IoCs
    persistence
  • UAC bypass 3 TTPs 15 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 36 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 12 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 46 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 46 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 42 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpea3_0o5w.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpea3_0o5w.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\users\admin\appdata\local\temp\tmpea3_0o5w.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:3780
      • C:\Users\Admin\AppData\Local\Temp\zhhls.exe
        "C:\Users\Admin\AppData\Local\Temp\zhhls.exe" "-C:\Users\Admin\AppData\Local\Temp\wpaphxncximitmxh.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:5104
      • C:\Users\Admin\AppData\Local\Temp\zhhls.exe
        "C:\Users\Admin\AppData\Local\Temp\zhhls.exe" "-C:\Users\Admin\AppData\Local\Temp\wpaphxncximitmxh.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:5040
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\users\admin\appdata\local\temp\tmpea3_0o5w.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:3100
  • C:\Windows\zxnhezuooenoecshzjnlb.exe
    zxnhezuooenoecshzjnlb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3376
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\windows\zxnhezuooenoecshzjnlb.exe*."
      2⤵
      • Executes dropped EXE
      PID:4584
  • C:\Windows\zxnhezuooenoecshzjnlb.exe
    zxnhezuooenoecshzjnlb.exe
    1⤵
    • Executes dropped EXE
    PID:3224
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3788
  • C:\Windows\khwplfzsrgoodapdudgd.exe
    khwplfzsrgoodapdudgd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3796
  • C:\Windows\khwplfzsrgoodapdudgd.exe
    khwplfzsrgoodapdudgd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3976
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\windows\khwplfzsrgoodapdudgd.exe*."
      2⤵
      • Executes dropped EXE
      PID:204
  • C:\Users\Admin\AppData\Local\Temp\mhulfxpgdqwuhcpbqx.exe
    C:\Users\Admin\AppData\Local\Temp\mhulfxpgdqwuhcpbqx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3648
  • C:\Users\Admin\AppData\Local\Temp\zxnhezuooenoecshzjnlb.exe
    C:\Users\Admin\AppData\Local\Temp\zxnhezuooenoecshzjnlb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1868
  • C:\Windows\mhulfxpgdqwuhcpbqx.exe
    mhulfxpgdqwuhcpbqx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:260
  • C:\Windows\wpaphxncximitmxh.exe
    wpaphxncximitmxh.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\windows\wpaphxncximitmxh.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:3856
  • C:\Windows\xthzungywkrqeaobrzb.exe
    xthzungywkrqeaobrzb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3204
  • C:\Users\Admin\AppData\Local\Temp\dxjzsjaqmydamgsdr.exe
    C:\Users\Admin\AppData\Local\Temp\dxjzsjaqmydamgsdr.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3136
  • C:\Windows\xthzungywkrqeaobrzb.exe
    xthzungywkrqeaobrzb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\windows\xthzungywkrqeaobrzb.exe*."
      2⤵
      • Executes dropped EXE
      PID:4012
  • C:\Users\Admin\AppData\Local\Temp\wpaphxncximitmxh.exe
    C:\Users\Admin\AppData\Local\Temp\wpaphxncximitmxh.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3792
  • C:\Users\Admin\AppData\Local\Temp\xthzungywkrqeaobrzb.exe
    C:\Users\Admin\AppData\Local\Temp\xthzungywkrqeaobrzb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2180
  • C:\Windows\dxjzsjaqmydamgsdr.exe
    dxjzsjaqmydamgsdr.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\windows\dxjzsjaqmydamgsdr.exe*."
      2⤵
      • Executes dropped EXE
      PID:2072
  • C:\Windows\wpaphxncximitmxh.exe
    wpaphxncximitmxh.exe
    1⤵
    • Executes dropped EXE
    PID:4648
  • C:\Windows\mhulfxpgdqwuhcpbqx.exe
    mhulfxpgdqwuhcpbqx.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
      "C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe" "c:\windows\mhulfxpgdqwuhcpbqx.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:4428
  • C:\Windows\dxjzsjaqmydamgsdr.exe
    dxjzsjaqmydamgsdr.exe
    1⤵
    • Executes dropped EXE
    PID:1392
  • C:\Users\Admin\AppData\Local\Temp\khwplfzsrgoodapdudgd.exe
    C:\Users\Admin\AppData\Local\Temp\khwplfzsrgoodapdudgd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4012

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

        qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Path C:\Program Files (x86)\qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Size 280B
        • SHA256 c99ac26ea074eaf900e3719a830e4d0bb7add1166e31e91b2e785ffa4d62c485
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Path C:\Program Files (x86)\qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Size 280B
        • SHA256 fcb7804d13685ef3f494e6f9dd33907b38d85dae671d7da7456355bcbdae0ce4
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Path C:\Program Files (x86)\qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Size 280B
        • SHA256 57faabfcd9d87cbefbc4ed788ef4138ae5080df9f222a0c27f953f9027a8528f
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        duaouzhhnek.exe
        • Path C:\Users\Admin\AppData\Local\Temp\duaouzhhnek.exe
        • Size 320KB
        • SHA256 5c72e176cd093775e54d7cf1736242bd6e310a227ae40173ee675581351d9963
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        zhhls.exe
        • Path C:\Users\Admin\AppData\Local\Temp\zhhls.exe
        • Size 724KB
        • SHA256 54a9192c4104d0a79288932a74abad3ee4a1fed39ccd8e03103eca83d43ad937
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Path C:\Users\Admin\AppData\Local\qxwzfjnqzyqazgfdexkrqtzdhk.sku
        • Size 280B
        • SHA256 7c7c487e8a73b5dd0f8ebc1c014996116644a1a028afe265c31c57e4b7dc8296
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        rjthyncqkuxscuenzdbtdrixmauehcmeoxjnl.nbs
        • Path C:\Users\Admin\AppData\Local\rjthyncqkuxscuenzdbtdrixmauehcmeoxjnl.nbs
        • Size 4KB
        • SHA256 42967e6433c6185a58110177f2f92d745828c087b2ba0f87ecaa62f94a607fce
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        mhulfxpgdqwuhcpbqx.exe
        • Path C:\Windows\SysWOW64\mhulfxpgdqwuhcpbqx.exe
        • Size 548KB
        • SHA256 93dad180c872ea5559bda259877c595b25653a14ec5bdb86ddb9f3d3c0fb4585
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download