Overview

overview

10

Static

static

3

tmpc9jdd9_1.exe

windows10-ltsc_2021-x64

10

tmpc9jdd9_1.exe

windows10-2004-x64

10

tmpc9jdd9_1.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, 03:41

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General

  • Target
    tmpc9jdd9_1.exe
  • Size 632KB
  • Sample260602-d85evsev5n
  • SHA256 9ed614a7ff1f776b2c23c28dfb845ca42b89b51afd80996422e82860fea16ee4
  • 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\tmpc9jdd9_1.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpc9jdd9_1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmpc9jdd9_1.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:5100
      • C:\Users\Admin\AppData\Local\Temp\cfgrp.exe
        "C:\Users\Admin\AppData\Local\Temp\cfgrp.exe" "-C:\Users\Admin\AppData\Local\Temp\znzveupeshjuybou.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:1960
      • C:\Users\Admin\AppData\Local\Temp\cfgrp.exe
        "C:\Users\Admin\AppData\Local\Temp\cfgrp.exe" "-C:\Users\Admin\AppData\Local\Temp\znzveupeshjuybou.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:5024
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmpc9jdd9_1.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:3208
  • C:\Windows\cvmnbwwqjdkajrjugcqja.exe
    cvmnbwwqjdkajrjugcqja.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4156
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:1916
  • C:\Windows\argfrkiarjocjpfoyse.exe
    argfrkiarjocjpfoyse.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\argfrkiarjocjpfoyse.exe*."
      2⤵
      • Executes dropped EXE
      PID:2160
  • C:\Windows\nfvvicbumflaipgqbwjb.exe
    nfvvicbumflaipgqbwjb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\nfvvicbumflaipgqbwjb.exe*."
      2⤵
      • Executes dropped EXE
      PID:2728
  • C:\Windows\nfvvicbumflaipgqbwjb.exe
    nfvvicbumflaipgqbwjb.exe
    1⤵
    • Executes dropped EXE
    PID:4460
  • C:\Users\Admin\AppData\Local\Temp\argfrkiarjocjpfoyse.exe
    C:\Users\Admin\AppData\Local\Temp\argfrkiarjocjpfoyse.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3128
  • C:\Windows\pftrcuriyptgmrgoxq.exe
    pftrcuriyptgmrgoxq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:116
  • C:\Windows\pftrcuriyptgmrgoxq.exe
    pftrcuriyptgmrgoxq.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\pftrcuriyptgmrgoxq.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:3000
  • C:\Windows\gvifpgcshxamrvjqy.exe
    gvifpgcshxamrvjqy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4920
  • C:\Windows\znzveupeshjuybou.exe
    znzveupeshjuybou.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\znzveupeshjuybou.exe*."
      2⤵
      • Executes dropped EXE
      PID:3024
  • C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    1⤵
      PID:2728
    • C:\Users\Admin\AppData\Local\Temp\cvmnbwwqjdkajrjugcqja.exe
      C:\Users\Admin\AppData\Local\Temp\cvmnbwwqjdkajrjugcqja.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3128
    • C:\Windows\gvifpgcshxamrvjqy.exe
      gvifpgcshxamrvjqy.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3896
      • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
        "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\gvifpgcshxamrvjqy.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:1780
    • C:\Windows\znzveupeshjuybou.exe
      znzveupeshjuybou.exe
      1⤵
      • Executes dropped EXE
      PID:1576
    • C:\Users\Admin\AppData\Local\Temp\nfvvicbumflaipgqbwjb.exe
      C:\Users\Admin\AppData\Local\Temp\nfvvicbumflaipgqbwjb.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1884
    • C:\Windows\cvmnbwwqjdkajrjugcqja.exe
      cvmnbwwqjdkajrjugcqja.exe .
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
        "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\cvmnbwwqjdkajrjugcqja.exe*."
        2⤵
        • Executes dropped EXE
        PID:3308
    • C:\Users\Admin\AppData\Local\Temp\pftrcuriyptgmrgoxq.exe
      C:\Users\Admin\AppData\Local\Temp\pftrcuriyptgmrgoxq.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1044
    • C:\Users\Admin\AppData\Local\Temp\znzveupeshjuybou.exe
      C:\Users\Admin\AppData\Local\Temp\znzveupeshjuybou.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3724
    • C:\Windows\argfrkiarjocjpfoyse.exe
      argfrkiarjocjpfoyse.exe
      1⤵
      • Executes dropped EXE
      PID:4232
    • C:\Users\Admin\AppData\Local\Temp\gvifpgcshxamrvjqy.exe
      C:\Users\Admin\AppData\Local\Temp\gvifpgcshxamrvjqy.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3544

    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

          tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Path C:\Program Files (x86)\tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Size 272B
          • SHA256 76b1d00c529caefde7031c4c1ca56d40f6f10bdcb529f7cde7f027f114fc9309
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Path C:\Program Files (x86)\tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Size 272B
          • SHA256 1455709ea7d2a4616d3a04b2aa6a1a396d9808a0b3a43e69ba33d00fd73fb20c
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Path C:\Program Files (x86)\tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Size 272B
          • SHA256 60b6542ad331bc2981a9cc751fadf98ce5a94758f4bdf776f03d6514457b9015
          • MD5 SHA1 SHA512 TLSH
          Submit Download

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

          cfgrp.exe
          • Path C:\Users\Admin\AppData\Local\Temp\cfgrp.exe
          • Size 716KB
          • SHA256 b2e511ba47700a19a9427203d1486c7deeb411a0cb26ac61e6108e39e06635f9
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Path C:\Users\Admin\AppData\Local\tvvfcgpsuxnmevwqlqnppzwajm.rhg
          • Size 272B
          • SHA256 b5956a07e2fb51488da07bf658ed7613e3c0d89dda072a720e0a545b74062f0e
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          uhsnvkesftuehjvagwercxfuocpdeortfkqgo.mhp
          • Path C:\Users\Admin\AppData\Local\uhsnvkesftuehjvagwercxfuocpdeortfkqgo.mhp
          • Size 3KB
          • SHA256 6ec9d53f308e093efbe4ef94ccb53dc87075e98028a4cc16faa46f255f9cc97e
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          pftrcuriyptgmrgoxq.exe
          • Path C:\Windows\SysWOW64\pftrcuriyptgmrgoxq.exe
          • Size 632KB
          • SHA256 9ed614a7ff1f776b2c23c28dfb845ca42b89b51afd80996422e82860fea16ee4
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download