Overview

overview

10

Static

static

3

tmpr72uipic.exe

windows10-ltsc_2021-x64

10

tmpr72uipic.exe

windows10-2004-x64

10

tmpr72uipic.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
    02/06/2026, 02:45

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General

  • Target
    tmpr72uipic.exe
  • Size 1016KB
  • Sample260602-c8ptqsdv6p
  • SHA256 9a0e0d7b2856b81b45a863db64eae89e38f6a6a6ca6a713333f6d1b4110331a5
  • 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 35 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 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 4 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\tmpr72uipic.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpr72uipic.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\users\admin\appdata\local\temp\tmpr72uipic.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:5520
      • C:\Users\Admin\AppData\Local\Temp\udkrdlm.exe
        "C:\Users\Admin\AppData\Local\Temp\udkrdlm.exe" "-C:\Users\Admin\AppData\Local\Temp\tlbrmdnfridamcnp.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:4248
      • C:\Users\Admin\AppData\Local\Temp\udkrdlm.exe
        "C:\Users\Admin\AppData\Local\Temp\udkrdlm.exe" "-C:\Users\Admin\AppData\Local\Temp\tlbrmdnfridamcnp.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:1920
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\users\admin\appdata\local\temp\tmpr72uipic.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:3056
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:1908
  • C:\Windows\atkbxpatgyusfwilu.exe
    atkbxpatgyusfwilu.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5532
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\windows\atkbxpatgyusfwilu.exe*."
      2⤵
      • Executes dropped EXE
      PID:5816
  • C:\Windows\upibztgbqkiixqejuzy.exe
    upibztgbqkiixqejuzy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3824
  • C:\Windows\tlbrmdnfridamcnp.exe
    tlbrmdnfridamcnp.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1952
  • C:\Users\Admin\AppData\Local\Temp\tlbrmdnfridamcnp.exe
    C:\Users\Admin\AppData\Local\Temp\tlbrmdnfridamcnp.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3680
  • C:\Users\Admin\AppData\Local\Temp\wtojjfurieegxsipcjkhc.exe
    C:\Users\Admin\AppData\Local\Temp\wtojjfurieegxsipcjkhc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5480
  • C:\Windows\upibztgbqkiixqejuzy.exe
    upibztgbqkiixqejuzy.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:984
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\windows\upibztgbqkiixqejuzy.exe*."
      2⤵
      • Executes dropped EXE
      PID:5352
  • C:\Users\Admin\AppData\Local\Temp\upibztgbqkiixqejuzy.exe
    C:\Users\Admin\AppData\Local\Temp\upibztgbqkiixqejuzy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2476
  • C:\Windows\atkbxpatgyusfwilu.exe
    atkbxpatgyusfwilu.exe
    1⤵
    • Executes dropped EXE
    PID:4400
  • C:\Windows\wtojjfurieegxsipcjkhc.exe
    wtojjfurieegxsipcjkhc.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\windows\wtojjfurieegxsipcjkhc.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:4168
  • C:\Windows\hdxrqlzvlgfgwqflxddz.exe
    hdxrqlzvlgfgwqflxddz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3644
  • C:\Users\Admin\AppData\Local\Temp\jdvnkdpjxqnmasfjtx.exe
    C:\Users\Admin\AppData\Local\Temp\jdvnkdpjxqnmasfjtx.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5932
  • C:\Users\Admin\AppData\Local\Temp\atkbxpatgyusfwilu.exe
    C:\Users\Admin\AppData\Local\Temp\atkbxpatgyusfwilu.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4780
  • C:\Windows\hdxrqlzvlgfgwqflxddz.exe
    hdxrqlzvlgfgwqflxddz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\windows\hdxrqlzvlgfgwqflxddz.exe*."
      2⤵
      • Executes dropped EXE
      PID:3448
  • C:\Windows\wtojjfurieegxsipcjkhc.exe
    wtojjfurieegxsipcjkhc.exe
    1⤵
    • Executes dropped EXE
    PID:4272
  • C:\Windows\jdvnkdpjxqnmasfjtx.exe
    jdvnkdpjxqnmasfjtx.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\windows\jdvnkdpjxqnmasfjtx.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:4476
  • C:\Windows\tlbrmdnfridamcnp.exe
    tlbrmdnfridamcnp.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5776
    • C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
      "C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe" "c:\windows\tlbrmdnfridamcnp.exe*."
      2⤵
      • Executes dropped EXE
      PID:4632
  • C:\Windows\jdvnkdpjxqnmasfjtx.exe
    jdvnkdpjxqnmasfjtx.exe
    1⤵
    • Executes dropped EXE
    PID:5644
  • C:\Users\Admin\AppData\Local\Temp\hdxrqlzvlgfgwqflxddz.exe
    C:\Users\Admin\AppData\Local\Temp\hdxrqlzvlgfgwqflxddz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1168

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

        System Information Discovery

        2
        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

        udkrdlm.exe
        • Path C:\Users\Admin\AppData\Local\Temp\udkrdlm.exe
        • Size 700KB
        • SHA256 a5180cedea81c97cf9465a8460983874ea60806369bf3c6e7b91bf0280b4f5a3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        umtekhkhewd.exe
        • Path C:\Users\Admin\AppData\Local\Temp\umtekhkhewd.exe
        • Size 320KB
        • SHA256 5c1167aadd7d81a276f1a52320b4fe60bab2599d248309ca7df0dfed2069f339
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        glorzdafeiqazcapkzinqtbfc.gks
        • Path C:\Users\Admin\AppData\Local\glorzdafeiqazcapkzinqtbfc.gks
        • Size 280B
        • SHA256 36a21c56e478122c61b3ec3529ecc5b44bdee1917c50c1f156d9f098d54a31c3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        lbpdwltjtibwguddjjdthvodlblatoymvvbb.lzn
        • Path C:\Users\Admin\AppData\Local\lbpdwltjtibwguddjjdthvodlblatoymvvbb.lzn
        • Size 4KB
        • SHA256 59627ef0dfbb02b8760d47248100dee70e296454ce20ff2971a3f15a4fec1ee4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        jdvnkdpjxqnmasfjtx.exe
        • Path C:\Windows\SysWOW64\jdvnkdpjxqnmasfjtx.exe
        • Size 1016KB
        • SHA256 9a0e0d7b2856b81b45a863db64eae89e38f6a6a6ca6a713333f6d1b4110331a5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download