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
    151s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-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 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 4 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:3572
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.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:1300
      • C:\Users\Admin\AppData\Local\Temp\opudjr.exe
        "C:\Users\Admin\AppData\Local\Temp\opudjr.exe" "-C:\Users\Admin\AppData\Local\Temp\alatjbndziadvqgy.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:3048
      • C:\Users\Admin\AppData\Local\Temp\opudjr.exe
        "C:\Users\Admin\AppData\Local\Temp\opudjr.exe" "-C:\Users\Admin\AppData\Local\Temp\alatjbndziadvqgy.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:452
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.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:4348
  • C:\Windows\htjdunaroyrvokbux.exe
    htjdunaroyrvokbux.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3684
  • C:\Windows\htjdunaroyrvokbux.exe
    htjdunaroyrvokbux.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe" "c:\windows\htjdunaroyrvokbux.exe*."
      2⤵
      • Executes dropped EXE
      PID:4820
  • C:\Users\Admin\AppData\Local\Temp\htjdunaroyrvokbux.exe
    C:\Users\Admin\AppData\Local\Temp\htjdunaroyrvokbux.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:528
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3008
  • C:\Windows\alatjbndziadvqgy.exe
    alatjbndziadvqgy.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe" "c:\windows\alatjbndziadvqgy.exe*."
      2⤵
      • Executes dropped EXE
      PID:5052
  • C:\Windows\bphdwrgzykflgexsxff.exe
    bphdwrgzykflgexsxff.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3600
  • C:\Users\Admin\AppData\Local\Temp\odwtnjzttgcjfeyuajkz.exe
    C:\Users\Admin\AppData\Local\Temp\odwtnjzttgcjfeyuajkz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:224
  • C:\Windows\odwtnjzttgcjfeyuajkz.exe
    odwtnjzttgcjfeyuajkz.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3428
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe" "c:\windows\odwtnjzttgcjfeyuajkz.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:1756
  • C:\Windows\odwtnjzttgcjfeyuajkz.exe
    odwtnjzttgcjfeyuajkz.exe
    1⤵
    • Executes dropped EXE
    PID:4780
  • C:\Windows\dtnlgdupqebjggbyfprhb.exe
    dtnlgdupqebjggbyfprhb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4940
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe" "c:\windows\dtnlgdupqebjggbyfprhb.exe*."
      2⤵
      • Executes dropped EXE
      PID:4124
  • C:\Windows\qduphbphfqkpjgyswd.exe
    qduphbphfqkpjgyswd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1844
  • C:\Users\Admin\AppData\Local\Temp\qduphbphfqkpjgyswd.exe
    C:\Users\Admin\AppData\Local\Temp\qduphbphfqkpjgyswd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3972
  • C:\Users\Admin\AppData\Local\Temp\dtnlgdupqebjggbyfprhb.exe
    C:\Users\Admin\AppData\Local\Temp\dtnlgdupqebjggbyfprhb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1772
  • C:\Windows\bphdwrgzykflgexsxff.exe
    bphdwrgzykflgexsxff.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe" "c:\windows\bphdwrgzykflgexsxff.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:2628
  • C:\Windows\alatjbndziadvqgy.exe
    alatjbndziadvqgy.exe
    1⤵
    • Executes dropped EXE
    PID:5020
  • C:\Users\Admin\AppData\Local\Temp\bphdwrgzykflgexsxff.exe
    C:\Users\Admin\AppData\Local\Temp\bphdwrgzykflgexsxff.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2188
  • C:\Windows\dtnlgdupqebjggbyfprhb.exe
    dtnlgdupqebjggbyfprhb.exe
    1⤵
    • Executes dropped EXE
    PID:2336
  • C:\Users\Admin\AppData\Local\Temp\alatjbndziadvqgy.exe
    C:\Users\Admin\AppData\Local\Temp\alatjbndziadvqgy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1564
  • C:\Windows\qduphbphfqkpjgyswd.exe
    qduphbphfqkpjgyswd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe
      "C:\Users\Admin\AppData\Local\Temp\rpcsdqnnbzm.exe" "c:\windows\qduphbphfqkpjgyswd.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:476

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

        opudjr.exe
        • Path C:\Users\Admin\AppData\Local\Temp\opudjr.exe
        • Size 728KB
        • SHA256 2ca733462de1fac7e2500c6a608837bdfab21742a3180715a07d609edb7dea60
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

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

        nlntwbadmindiqtynfpnpvydc.okp
        • Path C:\Users\Admin\AppData\Local\nlntwbadmindiqtynfpnpvydc.okp
        • Size 272B
        • SHA256 3fcecdeccb6843445f7dc4adf321c17725119634e4e5eb1124f2e782430affa7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        sboftjthbiyzpiwmmpktgxlblztaqrhaoeeh.lyp
        • Path C:\Users\Admin\AppData\Local\sboftjthbiyzpiwmmpktgxlblztaqrhaoeeh.lyp
        • Size 3KB
        • SHA256 97880162b4bbaa71b498b1d73f24e5edf900d0d3624aabba15730a2cc2bcd2dd
        • MD5 SHA1 SHA512 TLSH
        Submit Download

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