Overview

overview

10

Static

static

3

tmp59hh01v1.exe

windows10-ltsc_2021-x64

10

tmp59hh01v1.exe

windows10-2004-x64

10

tmp59hh01v1.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • 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, 02:39

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General

  • Target
    tmp59hh01v1.exe
  • Size 608KB
  • Sample260602-c5ppkab15t
  • SHA256 db2e674c69ea2aa402c8c6e2f575ebd35a301e3ec2989d1c6fabe96f3ebab898
  • 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 38 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 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 7 IoCs

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

  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • 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 19 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\tmp59hh01v1.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp59hh01v1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4900
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\users\admin\appdata\local\temp\tmp59hh01v1.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:1436
      • C:\Users\Admin\AppData\Local\Temp\msvags.exe
        "C:\Users\Admin\AppData\Local\Temp\msvags.exe" "-C:\Users\Admin\AppData\Local\Temp\yobqgcsawjvvlibq.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 Location Discovery: System Language Discovery
        • System policy modification
        PID:2160
      • C:\Users\Admin\AppData\Local\Temp\msvags.exe
        "C:\Users\Admin\AppData\Local\Temp\msvags.exe" "-C:\Users\Admin\AppData\Local\Temp\yobqgcsawjvvlibq.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 autorun.inf file
        • 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:4020
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\users\admin\appdata\local\temp\tmp59hh01v1.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:5072
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3476
  • C:\Windows\bwoidezmnfwbwywqrcpkc.exe
    bwoidezmnfwbwywqrcpkc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3956
  • C:\Users\Admin\AppData\Local\Temp\yobqgcsawjvvlibq.exe
    C:\Users\Admin\AppData\Local\Temp\yobqgcsawjvvlibq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1128
  • C:\Users\Admin\AppData\Local\Temp\mgxqkkeqqhxbvwtmmwic.exe
    C:\Users\Admin\AppData\Local\Temp\mgxqkkeqqhxbvwtmmwic.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3728
  • C:\Windows\mgxqkkeqqhxbvwtmmwic.exe
    mgxqkkeqqhxbvwtmmwic.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2860
  • C:\Windows\mgxqkkeqqhxbvwtmmwic.exe
    mgxqkkeqqhxbvwtmmwic.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\mgxqkkeqqhxbvwtmmwic.exe*."
      2⤵
      • Executes dropped EXE
      PID:1812
  • C:\Windows\ogvmecuecrfhzytkiq.exe
    ogvmecuecrfhzytkiq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3996
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\ogvmecuecrfhzytkiq.exe*."
      2⤵
      • Executes dropped EXE
      PID:1672
  • C:\Windows\yobqgcsawjvvlibq.exe
    yobqgcsawjvvlibq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3460
  • C:\Windows\fwkarofolzmnecwmj.exe
    fwkarofolzmnecwmj.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\fwkarofolzmnecwmj.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:3840
  • C:\Windows\zsiatslwvladwwskjsd.exe
    zsiatslwvladwwskjsd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\zsiatslwvladwwskjsd.exe*."
      2⤵
      • Executes dropped EXE
      PID:2492
  • C:\Windows\zsiatslwvladwwskjsd.exe
    zsiatslwvladwwskjsd.exe
    1⤵
    • Executes dropped EXE
    PID:3868
  • C:\Users\Admin\AppData\Local\Temp\bwoidezmnfwbwywqrcpkc.exe
    C:\Users\Admin\AppData\Local\Temp\bwoidezmnfwbwywqrcpkc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4356
  • C:\Users\Admin\AppData\Local\Temp\ogvmecuecrfhzytkiq.exe
    C:\Users\Admin\AppData\Local\Temp\ogvmecuecrfhzytkiq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2328
  • C:\Windows\ogvmecuecrfhzytkiq.exe
    ogvmecuecrfhzytkiq.exe
    1⤵
    • Executes dropped EXE
    PID:3472
  • C:\Windows\bwoidezmnfwbwywqrcpkc.exe
    bwoidezmnfwbwywqrcpkc.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3964
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\bwoidezmnfwbwywqrcpkc.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:3348
  • C:\Users\Admin\AppData\Local\Temp\zsiatslwvladwwskjsd.exe
    C:\Users\Admin\AppData\Local\Temp\zsiatslwvladwwskjsd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3276
  • C:\Users\Admin\AppData\Local\Temp\fwkarofolzmnecwmj.exe
    C:\Users\Admin\AppData\Local\Temp\fwkarofolzmnecwmj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1736
  • C:\Windows\fwkarofolzmnecwmj.exe
    fwkarofolzmnecwmj.exe
    1⤵
    • Executes dropped EXE
    PID:2432
  • C:\Windows\yobqgcsawjvvlibq.exe
    yobqgcsawjvvlibq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4300
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\yobqgcsawjvvlibq.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:3508

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Replication Through Removable Media

        1
        T1091

        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

        Replication Through Removable Media

        1
        T1091

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        dcywvazqvrmvuacafulkg.dih
        • Path C:\Program Files (x86)\dcywvazqvrmvuacafulkg.dih
        • Size 272B
        • SHA256 bde908209e3e96e0bab4d44156a962b0cb71edd9be213e745ced304764e0ab35
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        dcywvazqvrmvuacafulkg.dih
        • Path C:\Program Files (x86)\dcywvazqvrmvuacafulkg.dih
        • Size 272B
        • SHA256 53ec2e02ed3a30cfda66e3b070c1e8f7d38996cc7eb570c1438293ebe3fc2eba
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        dcywvazqvrmvuacafulkg.dih
        • Path C:\Program Files (x86)\dcywvazqvrmvuacafulkg.dih
        • Size 272B
        • SHA256 51ec20c83df28dbde6216a371fb52682d60287bb4df09278543825c11c168e96
        • MD5 SHA1 SHA512 TLSH
        Submit Download

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

        msvags.exe
        • Path C:\Users\Admin\AppData\Local\Temp\msvags.exe
        • Size 700KB
        • SHA256 82df4aca068951750ea86ddf30ef2b239dc87222d1cd89ecd6537e105eee9a36
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXEA77.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\qclwiamqirzv\RCXEA77.tmp
        • Size 1.1MB
        • SHA256 3e4294e715005fed5a5802a20f155a7841a18053714e5101f1f7ec351e02d89b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        dcywvazqvrmvuacafulkg.dih
        • Path C:\Users\Admin\AppData\Local\dcywvazqvrmvuacafulkg.dih
        • Size 272B
        • SHA256 74d2ea688c815fcf9100359434479901fa3ac771066ccfdb552280a978aabdc1
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        yipyiyikahnhriveuuwgnwgwgiyflfpg.css
        • Path C:\Users\Admin\AppData\Local\yipyiyikahnhriveuuwgnwgwgiyflfpg.css
        • Size 3KB
        • SHA256 f3c5fa862edc4771f4a76066deab0bbf3cd69b6175d680977270af0d1db387cc
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ogvmecuecrfhzytkiq.exe
        • Path C:\Windows\SysWOW64\ogvmecuecrfhzytkiq.exe
        • Size 608KB
        • SHA256 db2e674c69ea2aa402c8c6e2f575ebd35a301e3ec2989d1c6fabe96f3ebab898
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download