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
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-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
  • 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 4 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5100
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.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
      • 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:5940
      • C:\Users\Admin\AppData\Local\Temp\yjovxcm.exe
        "C:\Users\Admin\AppData\Local\Temp\yjovxcm.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:2504
      • C:\Users\Admin\AppData\Local\Temp\yjovxcm.exe
        "C:\Users\Admin\AppData\Local\Temp\yjovxcm.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:3780
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.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
      • 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:5588
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:3196
  • C:\Windows\azsndwuohgcuwaxwynong.exe
    azsndwuohgcuwaxwynong.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1388
  • C:\Windows\njzreupgwslazauqpb.exe
    njzreupgwslazauqpb.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\njzreupgwslazauqpb.exe*."
      2⤵
      • Executes dropped EXE
      PID:1564
  • C:\Users\Admin\AppData\Local\Temp\ezofrgaqfasgeexsq.exe
    C:\Users\Admin\AppData\Local\Temp\ezofrgaqfasgeexsq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3396
  • C:\Windows\xrfvguncqkbolkcw.exe
    xrfvguncqkbolkcw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3564
  • C:\Users\Admin\AppData\Local\Temp\njzreupgwslazauqpb.exe
    C:\Users\Admin\AppData\Local\Temp\njzreupgwslazauqpb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5256
  • C:\Windows\ezofrgaqfasgeexsq.exe
    ezofrgaqfasgeexsq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5508
  • C:\Windows\ezofrgaqfasgeexsq.exe
    ezofrgaqfasgeexsq.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4216
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\ezofrgaqfasgeexsq.exe*."
      2⤵
      • Executes dropped EXE
      PID:1332
  • C:\Users\Admin\AppData\Local\Temp\xrfvguncqkbolkcw.exe
    C:\Users\Admin\AppData\Local\Temp\xrfvguncqkbolkcw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2404
  • C:\Windows\xrfvguncqkbolkcw.exe
    xrfvguncqkbolkcw.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\xrfvguncqkbolkcw.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:3480
  • C:\Users\Admin\AppData\Local\Temp\ljbvkczskiduvyusthhf.exe
    C:\Users\Admin\AppData\Local\Temp\ljbvkczskiduvyusthhf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2648
  • C:\Windows\njzreupgwslazauqpb.exe
    njzreupgwslazauqpb.exe
    1⤵
    • Executes dropped EXE
    PID:2552
  • C:\Windows\azsndwuohgcuwaxwynong.exe
    azsndwuohgcuwaxwynong.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3820
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\azsndwuohgcuwaxwynong.exe*."
      2⤵
      • Executes dropped EXE
      PID:2644
  • C:\Users\Admin\AppData\Local\Temp\yvmftkgypmgwwytqqdc.exe
    C:\Users\Admin\AppData\Local\Temp\yvmftkgypmgwwytqqdc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4220
  • C:\Windows\yvmftkgypmgwwytqqdc.exe
    yvmftkgypmgwwytqqdc.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5208
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\yvmftkgypmgwwytqqdc.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:5472
  • C:\Windows\yvmftkgypmgwwytqqdc.exe
    yvmftkgypmgwwytqqdc.exe
    1⤵
    • Executes dropped EXE
    PID:5264
  • C:\Windows\ljbvkczskiduvyusthhf.exe
    ljbvkczskiduvyusthhf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5228
  • C:\Windows\ljbvkczskiduvyusthhf.exe
    ljbvkczskiduvyusthhf.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe
      "C:\Users\Admin\AppData\Local\Temp\sasmzoglckc.exe" "c:\windows\ljbvkczskiduvyusthhf.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:412
  • C:\Users\Admin\AppData\Local\Temp\azsndwuohgcuwaxwynong.exe
    C:\Users\Admin\AppData\Local\Temp\azsndwuohgcuwaxwynong.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5840

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

        System Information Discovery

        2
        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

        ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Path C:\Program Files (x86)\ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Size 120B
        • SHA256 1ad130574f85a0c74901e1111af318d118322da5b57d40177532c584f393bd7c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Path C:\Program Files (x86)\ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Size 120B
        • SHA256 a2b9663f0358889e65c1cd5bf2f7f5deadb7e9157a96bedf2e047be38c6d926b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Path C:\Program Files (x86)\ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Size 120B
        • SHA256 f63f15ca2c447bdc21f1fe3c48049aa42220ecf104da318167dd52c84aab6b3c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

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

        yjovxcm.exe
        • Path C:\Users\Admin\AppData\Local\Temp\yjovxcm.exe
        • Size 672KB
        • SHA256 c5ee527b8dbc5991953e15fea60114fad2c436909369f806b8019839bd43c130
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Path C:\Users\Admin\AppData\Local\ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Size 120B
        • SHA256 408d3cc96f00f168f2a254808763586c576c813e2cbbfd7cfa66b6aa0c2a5611
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Path C:\Users\Admin\AppData\Local\ajmrrucgjsyamahqcbmvyddgosv.kmy
        • Size 120B
        • SHA256 bc0fcdebca65620ea11767dbb238a8a73965d93863448564202b01833509bffe
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        xrfvguncqkbolkcwtdzthxiwpesmdqnmeyvfbv.zky
        • Path C:\Users\Admin\AppData\Local\xrfvguncqkbolkcwtdzthxiwpesmdqnmeyvfbv.zky
        • Size 3KB
        • SHA256 07f43c4a21ad7d181c3de912b6123d9bbb4de3d3333762a8820789f0d5448c2c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

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

        ezofrgaqfasgeexsq.exe
        • Path C:\Windows\ezofrgaqfasgeexsq.exe
        • Size 192KB
        • SHA256 01f98731695d98466bfe07be73f0d12caf45af653d05b0f405a9ccb1c6e184c9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nzfnqwho.bat
        • Path C:\nzfnqwho.bat
        • Size 456KB
        • SHA256 0416ed7dcd0d76aaaae0c5eef60f6cab1f040bb0c3d101f63a79cec8dd33f9f3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download