Overview

overview

10

Static

static

3

tmpod5b_sag.exe

windows10-ltsc_2021-x64

10

tmpod5b_sag.exe

windows10-2004-x64

10

tmpod5b_sag.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
    02/06/2026, 03:29

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General

  • Target
    tmpod5b_sag.exe
  • Size 508KB
  • Sample260602-d1445aes6m
  • SHA256 4bef104c72830617853df2551a2ff6630dcfebde00899ed36bfdc7e4b9fee596
  • 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 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 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 44 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpod5b_sag.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpod5b_sag.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmpod5b_sag.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:4156
      • C:\Users\Admin\AppData\Local\Temp\ugorwkp.exe
        "C:\Users\Admin\AppData\Local\Temp\ugorwkp.exe" "-C:\Users\Admin\AppData\Local\Temp\tofrfcqetteilyel.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:2188
      • C:\Users\Admin\AppData\Local\Temp\ugorwkp.exe
        "C:\Users\Admin\AppData\Local\Temp\ugorwkp.exe" "-C:\Users\Admin\AppData\Local\Temp\tofrfcqetteilyel.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:2276
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\users\admin\appdata\local\temp\tmpod5b_sag.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:4684
  • C:\Users\Admin\AppData\Local\Temp\jgzndcsizbouzowfyd.exe
    C:\Users\Admin\AppData\Local\Temp\jgzndcsizbouzowfyd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2224
  • C:\Windows\hgbrjkcunrgovmwhcjid.exe
    hgbrjkcunrgovmwhcjid.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3744
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\hgbrjkcunrgovmwhcjid.exe*."
      2⤵
      • Executes dropped EXE
      PID:1600
  • C:\Windows\jgzndcsizbouzowfyd.exe
    jgzndcsizbouzowfyd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3904
  • C:\Windows\usmbssjasvjqwmvfzfd.exe
    usmbssjasvjqwmvfzfd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2388
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:2132
  • C:\Users\Admin\AppData\Local\Temp\usmbssjasvjqwmvfzfd.exe
    C:\Users\Admin\AppData\Local\Temp\usmbssjasvjqwmvfzfd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:472
  • C:\Windows\tofrfcqetteilyel.exe
    tofrfcqetteilyel.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2588
  • C:\Windows\wwsjcexqkpfowozlhpplc.exe
    wwsjcexqkpfowozlhpplc.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\wwsjcexqkpfowozlhpplc.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:4880
  • C:\Windows\awobqodsijvaeszhz.exe
    awobqodsijvaeszhz.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\awobqodsijvaeszhz.exe*."
      2⤵
      • Executes dropped EXE
      PID:5088
  • C:\Windows\tofrfcqetteilyel.exe
    tofrfcqetteilyel.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\tofrfcqetteilyel.exe*."
      2⤵
      • Executes dropped EXE
      PID:3932
  • C:\Windows\hgbrjkcunrgovmwhcjid.exe
    hgbrjkcunrgovmwhcjid.exe
    1⤵
    • Executes dropped EXE
    PID:536
  • C:\Users\Admin\AppData\Local\Temp\tofrfcqetteilyel.exe
    C:\Users\Admin\AppData\Local\Temp\tofrfcqetteilyel.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2224
  • C:\Windows\awobqodsijvaeszhz.exe
    awobqodsijvaeszhz.exe
    1⤵
    • Executes dropped EXE
    PID:3392
  • C:\Windows\usmbssjasvjqwmvfzfd.exe
    usmbssjasvjqwmvfzfd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\usmbssjasvjqwmvfzfd.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:5108
  • C:\Windows\wwsjcexqkpfowozlhpplc.exe
    wwsjcexqkpfowozlhpplc.exe
    1⤵
    • Executes dropped EXE
    PID:3524
  • C:\Users\Admin\AppData\Local\Temp\awobqodsijvaeszhz.exe
    C:\Users\Admin\AppData\Local\Temp\awobqodsijvaeszhz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:836
  • C:\Users\Admin\AppData\Local\Temp\hgbrjkcunrgovmwhcjid.exe
    C:\Users\Admin\AppData\Local\Temp\hgbrjkcunrgovmwhcjid.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2392
  • C:\Windows\jgzndcsizbouzowfyd.exe
    jgzndcsizbouzowfyd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
      "C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe" "c:\windows\jgzndcsizbouzowfyd.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:1972
  • C:\Users\Admin\AppData\Local\Temp\wwsjcexqkpfowozlhpplc.exe
    C:\Users\Admin\AppData\Local\Temp\wwsjcexqkpfowozlhpplc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4288

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

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        Downloads

        biljjssstfcshgyrujqtrraa.bnk
        • Path C:\Program Files (x86)\biljjssstfcshgyrujqtrraa.bnk
        • Size 272B
        • SHA256 f8920293bd1a65c9d9e04f370f49cb103e9b7ed04f0dc4399c811d3e257d1d35
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        biljjssstfcshgyrujqtrraa.bnk
        • Path C:\Program Files (x86)\biljjssstfcshgyrujqtrraa.bnk
        • Size 272B
        • SHA256 d023b4cc6e6693e2867a0d60dc00a82db76f0dc23a52393babc5c39e7ff6a45d
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        agfdlmoakqp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\agfdlmoakqp.exe
        • Size 320KB
        • SHA256 b5643a7d0fe6085506e23f0f7a8ffdd41f0cb91aef9c4348dd724a5f743be5b9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ugorwkp.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ugorwkp.exe
        • Size 716KB
        • SHA256 096d069750ef4e371796e615e8f6ddf97f2598093b2f4c31860e18261585b303
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        biljjssstfcshgyrujqtrraa.bnk
        • Path C:\Users\Admin\AppData\Local\biljjssstfcshgyrujqtrraa.bnk
        • Size 272B
        • SHA256 7b4509f0dc6fcbc362e8d7d02a92173146e32c56f1232c87c5eb38deed6e9745
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        kcqzkepamjrsscfjxxpdmxrcnzweffpswkk.qzk
        • Path C:\Users\Admin\AppData\Local\kcqzkepamjrsscfjxxpdmxrcnzweffpswkk.qzk
        • Size 3KB
        • SHA256 5405064ac75ed916d2fd463ea619ed2db367fcecb81858ed55e21d31fb9f2da6
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        jgzndcsizbouzowfyd.exe
        • Path C:\Windows\SysWOW64\jgzndcsizbouzowfyd.exe
        • Size 508KB
        • SHA256 4bef104c72830617853df2551a2ff6630dcfebde00899ed36bfdc7e4b9fee596
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download