Overview

overview

10

Static

static

3

tmpt7adq8_c.exe

windows10-ltsc_2021-x64

10

tmpt7adq8_c.exe

windows10-2004-x64

10

tmpt7adq8_c.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    158s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    22/05/2026, 14:48

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General

  • Target
    tmpt7adq8_c.exe
  • Size 556KB
  • Sample260522-r6d2saev4l
  • SHA256 4f2e79bff34a37383bcc555b0ca392660d4f2354ce6d0fd1ed4146989745f391
  • 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 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 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 7 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\tmpt7adq8_c.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpt7adq8_c.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\users\admin\appdata\local\temp\tmpt7adq8_c.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:4444
      • C:\Users\Admin\AppData\Local\Temp\powdkq.exe
        "C:\Users\Admin\AppData\Local\Temp\powdkq.exe" "-C:\Users\Admin\AppData\Local\Temp\bkctkaphrhsluegh.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:2088
      • C:\Users\Admin\AppData\Local\Temp\powdkq.exe
        "C:\Users\Admin\AppData\Local\Temp\powdkq.exe" "-C:\Users\Admin\AppData\Local\Temp\bkctkaphrhsluegh.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:60
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\users\admin\appdata\local\temp\tmpt7adq8_c.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:3764
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:5908
  • C:\Windows\isldvmcvgxjdnybdg.exe
    isldvmcvgxjdnybdg.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1872
  • C:\Windows\cojdxqidqjxtfsxbgbg.exe
    cojdxqidqjxtfsxbgbg.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3220
  • C:\Users\Admin\AppData\Local\Temp\cojdxqidqjxtfsxbgbg.exe
    C:\Users\Admin\AppData\Local\Temp\cojdxqidqjxtfsxbgbg.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4072
  • C:\Windows\esplhcwtidtrfubholsgd.exe
    esplhcwtidtrfubholsgd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5308
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\windows\esplhcwtidtrfubholsgd.exe*."
      2⤵
      • Executes dropped EXE
      PID:2016
  • C:\Windows\pcytoibxlfuresydjfly.exe
    pcytoibxlfuresydjfly.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3636
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\windows\pcytoibxlfuresydjfly.exe*."
      2⤵
      • Executes dropped EXE
      PID:5288
  • C:\Users\Admin\AppData\Local\Temp\bkctkaphrhsluegh.exe
    C:\Users\Admin\AppData\Local\Temp\bkctkaphrhsluegh.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5216
  • C:\Users\Admin\AppData\Local\Temp\isldvmcvgxjdnybdg.exe
    C:\Users\Admin\AppData\Local\Temp\isldvmcvgxjdnybdg.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3332
  • C:\Windows\rcwpiarlxpcxiuybfz.exe
    rcwpiarlxpcxiuybfz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1896
  • C:\Windows\rcwpiarlxpcxiuybfz.exe
    rcwpiarlxpcxiuybfz.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\windows\rcwpiarlxpcxiuybfz.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:708
  • C:\Windows\bkctkaphrhsluegh.exe
    bkctkaphrhsluegh.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5976
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\windows\bkctkaphrhsluegh.exe*."
      2⤵
      • Executes dropped EXE
      PID:2184
  • C:\Users\Admin\AppData\Local\Temp\pcytoibxlfuresydjfly.exe
    C:\Users\Admin\AppData\Local\Temp\pcytoibxlfuresydjfly.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1492
  • C:\Windows\pcytoibxlfuresydjfly.exe
    pcytoibxlfuresydjfly.exe
    1⤵
    • Executes dropped EXE
    PID:1920
  • C:\Users\Admin\AppData\Local\Temp\rcwpiarlxpcxiuybfz.exe
    C:\Users\Admin\AppData\Local\Temp\rcwpiarlxpcxiuybfz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4352
  • C:\Windows\cojdxqidqjxtfsxbgbg.exe
    cojdxqidqjxtfsxbgbg.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\windows\cojdxqidqjxtfsxbgbg.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:1976
  • C:\Windows\bkctkaphrhsluegh.exe
    bkctkaphrhsluegh.exe
    1⤵
    • Executes dropped EXE
    PID:6000
  • C:\Windows\esplhcwtidtrfubholsgd.exe
    esplhcwtidtrfubholsgd.exe
    1⤵
    • Executes dropped EXE
    PID:3920
  • C:\Windows\isldvmcvgxjdnybdg.exe
    isldvmcvgxjdnybdg.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe
      "C:\Users\Admin\AppData\Local\Temp\jxbgdzwjthl.exe" "c:\windows\isldvmcvgxjdnybdg.exe*."
      2⤵
      • Executes dropped EXE
      PID:1932
  • C:\Users\Admin\AppData\Local\Temp\esplhcwtidtrfubholsgd.exe
    C:\Users\Admin\AppData\Local\Temp\esplhcwtidtrfubholsgd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1200

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

        okptxachehflhethwbqmrvzce.gjh
        • Path C:\Program Files (x86)\okptxachehflhethwbqmrvzce.gjh
        • Size 272B
        • SHA256 2fe35d79edc60939a102e586ecacca7ce58cd13d16f2b0db39d87ab736f6a35f
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        okptxachehflhethwbqmrvzce.gjh
        • Path C:\Program Files (x86)\okptxachehflhethwbqmrvzce.gjh
        • Size 272B
        • SHA256 b968882af22f4dd5234cd05ce9ae0e9ad15510739bc31441273203071c159e36
        • MD5 SHA1 SHA512 TLSH
        Submit Download

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

        powdkq.exe
        • Path C:\Users\Admin\AppData\Local\Temp\powdkq.exe
        • Size 708KB
        • SHA256 3776dd191f457dfb19a8e2dede028c2bb88819d570ef34217cf360601479e981
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        okptxachehflhethwbqmrvzce.gjh
        • Path C:\Users\Admin\AppData\Local\okptxachehflhethwbqmrvzce.gjh
        • Size 272B
        • SHA256 b81cb73d50ae4b5cdadc4893e32da3e3622c3dfb04ded16ef54faebc17485732
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        taqfuivlthqhowwvvllsixmandlzizgoonnd.kap
        • Path C:\Users\Admin\AppData\Local\taqfuivlthqhowwvvllsixmandlzizgoonnd.kap
        • Size 3KB
        • SHA256 9ff5c670fe980d7e2cf7f7caa2ae0a4dc35167bda7add10c17ccf1f40c95d6dd
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        rcwpiarlxpcxiuybfz.exe
        • Path C:\Windows\SysWOW64\rcwpiarlxpcxiuybfz.exe
        • Size 556KB
        • SHA256 4f2e79bff34a37383bcc555b0ca392660d4f2354ce6d0fd1ed4146989745f391
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download