Overview

overview

10

Static

static

3

tmp7ey9e9r9.exe

windows10-ltsc_2021-x64

10

tmp7ey9e9r9.exe

windows10-2004-x64

10

tmp7ey9e9r9.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
    22/05/2026, 13:59

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General

  • Target
    tmp7ey9e9r9.exe
  • Size 532KB
  • Sample260522-ragsssc13n
  • SHA256 4181ec24509fde4a5caf4365621fc8566782a855f1cb32a5a53f73875565b445
  • 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 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 8 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 64 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 63 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\tmp7ey9e9r9.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp7ey9e9r9.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\users\admin\appdata\local\temp\tmp7ey9e9r9.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:2996
      • C:\Users\Admin\AppData\Local\Temp\vfgru.exe
        "C:\Users\Admin\AppData\Local\Temp\vfgru.exe" "-c:\users\admin\appdata\local\temp\tmp7ey9e9r9.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:4428
      • C:\Users\Admin\AppData\Local\Temp\vfgru.exe
        "C:\Users\Admin\AppData\Local\Temp\vfgru.exe" "-c:\users\admin\appdata\local\temp\tmp7ey9e9r9.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:1368
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\users\admin\appdata\local\temp\tmp7ey9e9r9.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:1996
  • C:\Windows\iftrhvojcpboeusbzk.exe
    iftrhvojcpboeusbzk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4268
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:2388
  • C:\Users\Admin\AppData\Local\Temp\snzvjvmfwhrcqeah.exe
    C:\Users\Admin\AppData\Local\Temp\snzvjvmfwhrcqeah.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2136
  • C:\Windows\iftrhvojcpboeusbzk.exe
    iftrhvojcpboeusbzk.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\iftrhvojcpboeusbzk.exe*."
      2⤵
      • Executes dropped EXE
      PID:3100
  • C:\Windows\snzvjvmfwhrcqeah.exe
    snzvjvmfwhrcqeah.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3980
  • C:\Windows\snzvjvmfwhrcqeah.exe
    snzvjvmfwhrcqeah.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\snzvjvmfwhrcqeah.exe*."
      2⤵
      • Executes dropped EXE
      PID:760
  • C:\Users\Admin\AppData\Local\Temp\trgfwlfbvjwkbsrbamx.exe
    C:\Users\Admin\AppData\Local\Temp\trgfwlfbvjwkbsrbamx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1704
  • C:\Windows\vvmngxtrndsibuvhiwjja.exe
    vvmngxtrndsibuvhiwjja.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3560
  • C:\Windows\zvifuhztlxiujyvda.exe
    zvifuhztlxiujyvda.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3488
  • C:\Users\Admin\AppData\Local\Temp\zvifuhztlxiujyvda.exe
    C:\Users\Admin\AppData\Local\Temp\zvifuhztlxiujyvda.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1356
  • C:\Windows\trgfwlfbvjwkbsrbamx.exe
    trgfwlfbvjwkbsrbamx.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\trgfwlfbvjwkbsrbamx.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:2080
  • C:\Users\Admin\AppData\Local\Temp\iftrhvojcpboeusbzk.exe
    C:\Users\Admin\AppData\Local\Temp\iftrhvojcpboeusbzk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1212
  • C:\Users\Admin\AppData\Local\Temp\gfvvndyvqftiassddqcb.exe
    C:\Users\Admin\AppData\Local\Temp\gfvvndyvqftiassddqcb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4248
  • C:\Windows\trgfwlfbvjwkbsrbamx.exe
    trgfwlfbvjwkbsrbamx.exe
    1⤵
    • Executes dropped EXE
    PID:3792
  • C:\Windows\gfvvndyvqftiassddqcb.exe
    gfvvndyvqftiassddqcb.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3756
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\gfvvndyvqftiassddqcb.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:1104
  • C:\Windows\zvifuhztlxiujyvda.exe
    zvifuhztlxiujyvda.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\zvifuhztlxiujyvda.exe*."
      2⤵
      • Executes dropped EXE
      PID:2912
  • C:\Users\Admin\AppData\Local\Temp\vvmngxtrndsibuvhiwjja.exe
    C:\Users\Admin\AppData\Local\Temp\vvmngxtrndsibuvhiwjja.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2300
  • C:\Windows\gfvvndyvqftiassddqcb.exe
    gfvvndyvqftiassddqcb.exe
    1⤵
    • Executes dropped EXE
    PID:4752
  • C:\Windows\vvmngxtrndsibuvhiwjja.exe
    vvmngxtrndsibuvhiwjja.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\vvmngxtrndsibuvhiwjja.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:5020

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

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Program Files (x86)\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 ebd0256e2fdd5d0be4373b41efcc8712b45b5e6492b240b9c75b0d2a7e4662fe
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Program Files (x86)\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 07cd186c06f395460a39dceab594e0ceb5b9c79137459a83168e239b5fc9b4f6
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Program Files (x86)\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 b2afc8f34286f6220bb305c5d1ce77e8820b601b77e7ca4603e25618f2a8f8e3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Program Files (x86)\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 e3f55c3e2d34f8accb889bc74b6cd1fdf08b9c083637eb4b8b8f4aaf66ebe47b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Program Files (x86)\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 5707b485c82fe336b5e706874ebbaaaa7fe49bae339bc8f44a8ae50aa0e9bdfd
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Program Files (x86)\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 f8a258beb1d8ec8ee031ff4f38651751b84574555a721197f2907ac9d8c68d16
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ioxgxzqusyh.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
        • Size 308KB
        • SHA256 6fff20aabe8265b6e811c9dbcb987f9c15cf07d1d8b80ced7b287d96900f5c62
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        vfgru.exe
        • Path C:\Users\Admin\AppData\Local\Temp\vfgru.exe
        • Size 700KB
        • SHA256 c7d2df06fb53ab3cf993c6c0793a49766c0d49d6fec3c3143d8be325ba99f61a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        snzvjvmfwhrcqeahdmupbxlxohyjtesgcjfowr.znz
        • Path C:\Users\Admin\AppData\Local\snzvjvmfwhrcqeahdmupbxlxohyjtesgcjfowr.znz
        • Size 3KB
        • SHA256 d5565832c24d4aa0b97835ab7749d6d4637e0289ecdc1e7d7d193e6355208560
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Users\Admin\AppData\Local\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 16d68d4224019273739f19ad92b81cabdfa692aa132c87b5dcbbd0b597f0e230
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vfgruvbjppoorufbmkhrsdghnvb.aad
        • Path C:\Users\Admin\AppData\Local\vfgruvbjppoorufbmkhrsdghnvb.aad
        • Size 120B
        • SHA256 53a8eae60410ad2ae6003975dfb079fa161b427f3b3998e5ea46407c19000d1b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        iftrhvojcpboeusbzk.exe
        • Path C:\Windows\SysWOW64\iftrhvojcpboeusbzk.exe
        • Size 532KB
        • SHA256 4181ec24509fde4a5caf4365621fc8566782a855f1cb32a5a53f73875565b445
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ivzntxgr.bat
        • Path C:\ivzntxgr.bat
        • Size 632KB
        • SHA256 f7d1cbf0139dea2886b8d04fac6553f5aae28342cc6169335d95c5f0bbd88e85
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download