Overview

overview

10

Static

static

3

tmp6g0dk724.exe

windows10-ltsc_2021-x64

10

tmp6g0dk724.exe

windows10-2004-x64

10

tmp6g0dk724.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    158s
  • 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, 02:21

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General

  • Target
    tmp6g0dk724.exe
  • Size 1016KB
  • Sample260602-cs6gjsbx4y
  • SHA256 789b40386b4928afd936c535878710d1c646c43a799e9382a4bee218ca0cf015
  • 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 6 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 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 17 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\tmp6g0dk724.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp6g0dk724.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\users\admin\appdata\local\temp\tmp6g0dk724.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:3988
      • C:\Users\Admin\AppData\Local\Temp\psvfkr.exe
        "C:\Users\Admin\AppData\Local\Temp\psvfkr.exe" "-C:\Users\Admin\AppData\Local\Temp\bobvkbsitjugpogy.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:4720
      • C:\Users\Admin\AppData\Local\Temp\psvfkr.exe
        "C:\Users\Admin\AppData\Local\Temp\psvfkr.exe" "-C:\Users\Admin\AppData\Local\Temp\bobvkbsitjugpogy.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:5000
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\users\admin\appdata\local\temp\tmp6g0dk724.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:4372
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:2984
  • C:\Windows\ewonhdzukfvmaebysiskc.exe
    ewonhdzukfvmaebysiskc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1372
  • C:\Windows\iwkfvnfwizlyiibuk.exe
    iwkfvnfwizlyiibuk.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\iwkfvnfwizlyiibuk.exe*."
      2⤵
      • Executes dropped EXE
      PID:3992
  • C:\Users\Admin\AppData\Local\Temp\pgxvojeynhwmzcyunclc.exe
    C:\Users\Admin\AppData\Local\Temp\pgxvojeynhwmzcyunclc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4276
  • C:\Windows\bobvkbsitjugpogy.exe
    bobvkbsitjugpogy.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5096
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\bobvkbsitjugpogy.exe*."
      2⤵
      • Executes dropped EXE
      PID:4976
  • C:\Users\Admin\AppData\Local\Temp\ewonhdzukfvmaebysiskc.exe
    C:\Users\Admin\AppData\Local\Temp\ewonhdzukfvmaebysiskc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2728
  • C:\Windows\csifxrleslzoacxskyg.exe
    csifxrleslzoacxskyg.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3920
  • C:\Windows\iwkfvnfwizlyiibuk.exe
    iwkfvnfwizlyiibuk.exe
    1⤵
    • Executes dropped EXE
    PID:2236
  • C:\Users\Admin\AppData\Local\Temp\rgvribumzresdeysjw.exe
    C:\Users\Admin\AppData\Local\Temp\rgvribumzresdeysjw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1236
  • C:\Windows\ewonhdzukfvmaebysiskc.exe
    ewonhdzukfvmaebysiskc.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\ewonhdzukfvmaebysiskc.exe*."
      2⤵
      • Executes dropped EXE
      PID:1064
  • C:\Windows\bobvkbsitjugpogy.exe
    bobvkbsitjugpogy.exe
    1⤵
    • Executes dropped EXE
    PID:1468
  • C:\Windows\pgxvojeynhwmzcyunclc.exe
    pgxvojeynhwmzcyunclc.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\pgxvojeynhwmzcyunclc.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:4080
  • C:\Windows\csifxrleslzoacxskyg.exe
    csifxrleslzoacxskyg.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\csifxrleslzoacxskyg.exe*."
      2⤵
      • Executes dropped EXE
      PID:768
  • C:\Users\Admin\AppData\Local\Temp\csifxrleslzoacxskyg.exe
    C:\Users\Admin\AppData\Local\Temp\csifxrleslzoacxskyg.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4716
  • C:\Windows\rgvribumzresdeysjw.exe
    rgvribumzresdeysjw.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
      "C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe" "c:\windows\rgvribumzresdeysjw.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:3656
  • C:\Windows\rgvribumzresdeysjw.exe
    rgvribumzresdeysjw.exe
    1⤵
    • Executes dropped EXE
    PID:1776
  • C:\Windows\system32\BackgroundTransferHost.exe
    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
    1⤵
      PID:3992
    • C:\Users\Admin\AppData\Local\Temp\iwkfvnfwizlyiibuk.exe
      C:\Users\Admin\AppData\Local\Temp\iwkfvnfwizlyiibuk.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4832
    • C:\Windows\pgxvojeynhwmzcyunclc.exe
      pgxvojeynhwmzcyunclc.exe
      1⤵
      • Executes dropped EXE
      PID:2160
    • C:\Users\Admin\AppData\Local\Temp\bobvkbsitjugpogy.exe
      C:\Users\Admin\AppData\Local\Temp\bobvkbsitjugpogy.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3584

    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

          Loading Replay Monitor...

          Downloads

          jihnoruwtvsqlwaefctsrxyb.gdf
          • Path C:\Program Files (x86)\jihnoruwtvsqlwaefctsrxyb.gdf
          • Size 280B
          • SHA256 23780988f8875d292f9164eb0f0dd6384371da6c8330d02816e9298c7ebbf98f
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          jihnoruwtvsqlwaefctsrxyb.gdf
          • Path C:\Program Files (x86)\jihnoruwtvsqlwaefctsrxyb.gdf
          • Size 280B
          • SHA256 a5a7585ded557c6f203fe6b3f4f1f127928d1af1b210d16779dc55d4ed040c77
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          jihnoruwtvsqlwaefctsrxyb.gdf
          • Path C:\Program Files (x86)\jihnoruwtvsqlwaefctsrxyb.gdf
          • Size 280B
          • SHA256 f793a79ac13679d7c7ad8fc3e8e158eaeba0ac8363aea77512b743d721ac0510
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          jihnoruwtvsqlwaefctsrxyb.gdf
          • Path C:\Program Files (x86)\jihnoruwtvsqlwaefctsrxyb.gdf
          • Size 280B
          • SHA256 fd9042d9c72360e7801f817b89331722c65d0b726d6310aa5db954d70b9a1216
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          jihnoruwtvsqlwaefctsrxyb.gdf
          • Path C:\Program Files (x86)\jihnoruwtvsqlwaefctsrxyb.gdf
          • Size 280B
          • SHA256 5b568f46b4f08185797d605583e3d72a92756c1e06d5c19051967922a2361823
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          lswqdqagvcg.exe
          • Path C:\Users\Admin\AppData\Local\Temp\lswqdqagvcg.exe
          • Size 320KB
          • SHA256 c8b7b767f55311141df3dc654f8d49c88a87fe850125d4a01ba7e6f396f111f6
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          psvfkr.exe
          • Path C:\Users\Admin\AppData\Local\Temp\psvfkr.exe
          • Size 708KB
          • SHA256 03b0f8d2ea7f2635bb3e172c3294131e1e0587744f9bf5e28e341edb18957375
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          jihnoruwtvsqlwaefctsrxyb.gdf
          • Path C:\Users\Admin\AppData\Local\jihnoruwtvsqlwaefctsrxyb.gdf
          • Size 280B
          • SHA256 d320990157e0e683089d9a13699ababe39155c717a16b652b01f82710124b51a
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          scmdpdremzhqwshwiqscmdpdremzhqwshwi.scm
          • Path C:\Users\Admin\AppData\Local\scmdpdremzhqwshwiqscmdpdremzhqwshwi.scm
          • Size 4KB
          • SHA256 eb8f9448e3eafe0f4e960453337e893e7678e96a489f509c50cec8c7a065819a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          rgvribumzresdeysjw.exe
          • Path C:\Windows\SysWOW64\rgvribumzresdeysjw.exe
          • Size 1016KB
          • SHA256 789b40386b4928afd936c535878710d1c646c43a799e9382a4bee218ca0cf015
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          cgkvbjr.bat
          • Path C:\cgkvbjr.bat
          • Size 544KB
          • SHA256 d004374f963d3edab7312d5b27224c17d68239ff144f66cac9d8831340a71924
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download