Overview

overview

10

Static

static

3

tmp6tv4n76r.exe

windows10-ltsc_2021-x64

10

tmp6tv4n76r.exe

windows10-2004-x64

10

tmp6tv4n76r.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • 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, 14:04

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General

  • Target
    tmp6tv4n76r.exe
  • Size 1016KB
  • Sample260522-rdsdpsds6m
  • SHA256 1adfe64c20a9e0ec8625ef833b81288dbb1af3ebe44bf10903a87b372937d2e5
  • 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 53 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 53 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\tmp6tv4n76r.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp6tv4n76r.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\users\admin\appdata\local\temp\tmp6tv4n76r.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:4624
      • C:\Users\Admin\AppData\Local\Temp\ooaaft.exe
        "C:\Users\Admin\AppData\Local\Temp\ooaaft.exe" "-C:\Users\Admin\AppData\Local\Temp\akgqfdlaxsfjxfjo.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:4888
      • C:\Users\Admin\AppData\Local\Temp\ooaaft.exe
        "C:\Users\Admin\AppData\Local\Temp\ooaaft.exe" "-C:\Users\Admin\AppData\Local\Temp\akgqfdlaxsfjxfjo.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:2800
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\users\admin\appdata\local\temp\tmp6tv4n76r.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:2312
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:1300
  • C:\Windows\hspaqpyomiwbqzekz.exe
    hspaqpyomiwbqzekz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3704
  • C:\Windows\occqjlxqrqhphtbkcqee.exe
    occqjlxqrqhphtbkcqee.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\occqjlxqrqhphtbkcqee.exe*."
      2⤵
      • Executes dropped EXE
      PID:1364
  • C:\Windows\dsticfsmoogpiveohwlmb.exe
    dsticfsmoogpiveohwlmb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4552
  • C:\Windows\bonastewwukritaizmz.exe
    bonastewwukritaizmz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\bonastewwukritaizmz.exe*."
      2⤵
      • Executes dropped EXE
      PID:3952
  • C:\Users\Admin\AppData\Local\Temp\akgqfdlaxsfjxfjo.exe
    C:\Users\Admin\AppData\Local\Temp\akgqfdlaxsfjxfjo.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3176
  • C:\Users\Admin\AppData\Local\Temp\dsticfsmoogpiveohwlmb.exe
    C:\Users\Admin\AppData\Local\Temp\dsticfsmoogpiveohwlmb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2396
  • C:\Windows\akgqfdlaxsfjxfjo.exe
    akgqfdlaxsfjxfjo.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4956
  • C:\Windows\akgqfdlaxsfjxfjo.exe
    akgqfdlaxsfjxfjo.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\akgqfdlaxsfjxfjo.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:2132
  • C:\Windows\qcamddnedapvlvbiyk.exe
    qcamddnedapvlvbiyk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2156
  • C:\Users\Admin\AppData\Local\Temp\hspaqpyomiwbqzekz.exe
    C:\Users\Admin\AppData\Local\Temp\hspaqpyomiwbqzekz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4320
  • C:\Users\Admin\AppData\Local\Temp\qcamddnedapvlvbiyk.exe
    C:\Users\Admin\AppData\Local\Temp\qcamddnedapvlvbiyk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4552
  • C:\Windows\bonastewwukritaizmz.exe
    bonastewwukritaizmz.exe
    1⤵
    • Executes dropped EXE
    PID:4800
  • C:\Windows\qcamddnedapvlvbiyk.exe
    qcamddnedapvlvbiyk.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3176
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\qcamddnedapvlvbiyk.exe*."
      2⤵
      • Executes dropped EXE
      PID:3228
  • C:\Users\Admin\AppData\Local\Temp\occqjlxqrqhphtbkcqee.exe
    C:\Users\Admin\AppData\Local\Temp\occqjlxqrqhphtbkcqee.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4944
  • C:\Windows\occqjlxqrqhphtbkcqee.exe
    occqjlxqrqhphtbkcqee.exe
    1⤵
    • Executes dropped EXE
    PID:1844
  • C:\Windows\hspaqpyomiwbqzekz.exe
    hspaqpyomiwbqzekz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:248
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\hspaqpyomiwbqzekz.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:1268
  • C:\Users\Admin\AppData\Local\Temp\bonastewwukritaizmz.exe
    C:\Users\Admin\AppData\Local\Temp\bonastewwukritaizmz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3108
  • C:\Windows\dsticfsmoogpiveohwlmb.exe
    dsticfsmoogpiveohwlmb.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\dsticfsmoogpiveohwlmb.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:4692

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

        dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Path C:\Program Files (x86)\dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Size 280B
        • SHA256 427ce11dd2df26e84a8d8b07656d460b21579b877f11a786d7352d9c3544f2d9
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Path C:\Program Files (x86)\dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Size 280B
        • SHA256 bd3daafcb0b68f9560fa3fe3450aa08569d226fd0c85c0afc1e075cf6a2b8861
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ooaaft.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ooaaft.exe
        • Size 700KB
        • SHA256 c7e4aaa90569d48db5689dc22beee949856317d9f8644b38e0bec551e59dd4ca
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        zhgpsrrajrq.exe
        • Path C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
        • Size 320KB
        • SHA256 f8e2d2fd80fdcf3055b174621513f7a4305fffbd0f20edd133ad2d03180682eb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        akgqfdlaxsfjxfjocmwscrpxmjervjrvaoyieo.bjy
        • Path C:\Users\Admin\AppData\Local\akgqfdlaxsfjxfjocmwscrpxmjervjrvaoyieo.bjy
        • Size 4KB
        • SHA256 316199d62be1510cd3204687be25b79a1440aea4fc9b80f0a267fb2f4d9da8ff
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Path C:\Users\Admin\AppData\Local\dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Size 280B
        • SHA256 9439a0addbb480948626bfdfc869a165ee01d7fd7ad6b7758823adc35130cdc3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Path C:\Users\Admin\AppData\Local\dcnmqdaeqacvyvoilkjutxkhlxh.cfc
        • Size 280B
        • SHA256 9fcb4cc2fb27e15e42b63307b5929313b5c7de31a724d011b73dd69670e71f8a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qcamddnedapvlvbiyk.exe
        • Path C:\Windows\SysWOW64\qcamddnedapvlvbiyk.exe
        • Size 1016KB
        • SHA256 1adfe64c20a9e0ec8625ef833b81288dbb1af3ebe44bf10903a87b372937d2e5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download