Overview

overview

7

Static

static

3

SystemUpdate.exe

windows10-2004-x64

7

SystemUpdate.exe

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 12:02

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    SystemUpdate.exe
  • Size 32.4MB
  • Sample260620-n7fp8aew8p
  • SHA256 037dbda48375f10a8ff66a0f1820d9627eea9659afbfcfb9194d4c066a8b84cb
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
discoveryexecutionpersistencespywarestealer

Malware Config

Signatures

  • Loads dropped DLL 60 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Contacts third-party web service commonly abused for C2 1 TTPs 11 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates processes with tasklist 1 TTPs 4 IoCs
    discovery
  • Gathers system information 1 TTPs 2 IoCs

    Runs systeminfo.exe.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
    "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5596
    • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:5528
      • C:\Windows\SYSTEM32\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:1124
      • C:\Windows\SYSTEM32\systeminfo.exe
        systeminfo
        3⤵
        • Gathers system information
        PID:4308
      • C:\Windows\SYSTEM32\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:4060
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "schtasks /query /tn "WindowsUpdateCheck""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1108
        • C:\Windows\system32\schtasks.exe
          schtasks /query /tn "WindowsUpdateCheck"
          4⤵
            PID:3288
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c "schtasks /create /tn "WindowsUpdateCheck" /tr "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe" /sc onlogon /rl highest /f"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1140
          • C:\Windows\system32\schtasks.exe
            schtasks /create /tn "WindowsUpdateCheck" /tr "C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe" /sc onlogon /rl highest /f
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:5576
    • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
      C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4856
      • C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
        C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3136
        • C:\Windows\System32\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:3364
        • C:\Windows\System32\systeminfo.exe
          systeminfo
          3⤵
          • Gathers system information
          PID:4216
        • C:\Windows\System32\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:5000

    Network

          MITRE ATT&CK Enterprise v16

          Reconnaissance

          Resource Development

          Initial Access

          Execution

          Scheduled Task/Job

          1
          T1053

          Scheduled Task

          1
          T1053.005

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Scheduled Task/Job

          1
          T1053

          Scheduled Task

          1
          T1053.005

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Scheduled Task/Job

          1
          T1053

          Scheduled Task

          1
          T1053.005

          Defense Evasion

          Modify Registry

          1
          T1112

          Credential Access

          Credentials from Password Stores

          1
          T1555

          Credentials from Web Browsers

          1
          T1555.003

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          Process Discovery

          1
          T1057

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Command and Control

          Web Service

          1
          T1102

          Exfiltration

          Impact

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          81d243bd2c585b0f4821__mypyc.cp313-win_amd64.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\81d243bd2c585b0f4821__mypyc.cp313-win_amd64.pyd
          • Size 213KB
          • SHA256 ba7fc544994f126cb7485ce52d265d2f32e93c4f1ea1fcd6fcdee3918f271979
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _imaging.cp313-win_amd64.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\PIL\_imaging.cp313-win_amd64.pyd
          • Size 2.5MB
          • SHA256 34b9fbd040c46776f343c65b9ecd252c1cf30e84def79294d7e2675feef1a363
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          VCRUNTIME140.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\VCRUNTIME140.dll
          • Size 117KB
          • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          VCRUNTIME140_1.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\VCRUNTIME140_1.dll
          • Size 48KB
          • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _bz2.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_bz2.pyd
          • Size 84KB
          • SHA256 b4aa26c44a529de7129733a31b73fd74e474b9069edf02d3151d067ac5d52a5c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _cffi_backend.cp313-win_amd64.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_cffi_backend.cp313-win_amd64.pyd
          • Size 176KB
          • SHA256 d5b09da2e726b4e90cf0edad5d2a0ec52f369dfd060e14d3807a32b2205031fa
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _ctypes.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_ctypes.pyd
          • Size 131KB
          • SHA256 69ccbfa336004742c18fba4a2d0d24aba5f5e1578983278137788166ea322a22
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _decimal.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_decimal.pyd
          • Size 280KB
          • SHA256 098b917a449a82050820fd4b36b94cff85b243af5d109fdaefc1dff05efccca2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _hashlib.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_hashlib.pyd
          • Size 67KB
          • SHA256 1ca43d7db5e5b3d8066038ff452b09c1dd525022ad5c4447be94345705caadc8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _lzma.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_lzma.pyd
          • Size 155KB
          • SHA256 71387e8484088f8291664312d985f42454017e1f556bd4107e2d065f19a799ec
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _queue.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_queue.pyd
          • Size 34KB
          • SHA256 f1be4ad7af2810ca957ce1bb6122ac821bb284633bdabc872e12e699f5067269
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _socket.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_socket.pyd
          • Size 84KB
          • SHA256 6050e57e93872e3cd86daeca9594362ad256a9bbe00e0549fa5988a9b43c90e3
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _sqlite3.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_sqlite3.pyd
          • Size 126KB
          • SHA256 183d02f0ce2ad03f3f101682313cd3034f6039acd7e7025f618cc27a053ec609
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _ssl.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_ssl.pyd
          • Size 177KB
          • SHA256 5f113a6b4cc933646ef69aa233da278bd311f7f04135a8ea6e1514944af3f851
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _wmi.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\_wmi.pyd
          • Size 38KB
          • SHA256 440ccba82699e5cca4975ad68fa4338d66295dbf9abf391b924ed1d22fe90857
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          base_library.zip
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\base_library.zip
          • Size 1.3MB
          • SHA256 0a19fdf10116ba4f9f3efa2e391f2de6cb0af80267f1b7f375424cd48af8ea7c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          cacert.pem
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\certifi\cacert.pem
          • Size 233KB
          • SHA256 16be3f6feb15408195dcfe3aa1a75ef9db72f646b96ebbefdc68f56255f799f8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          cd.cp313-win_amd64.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\charset_normalizer\cd.cp313-win_amd64.pyd
          • Size 10KB
          • SHA256 2e9f5049b3c5db7ab78c6abb94dfbbfe035ebab8f40594320f8c92221f486f24
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          _rust.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\cryptography\hazmat\bindings\_rust.pyd
          • Size 9.4MB
          • SHA256 813b101f70efb79c388239ce82ac891e195a1e19eeaeb43c32d9bf425e7b51b8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libcrypto-3.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\libcrypto-3.dll
          • Size 5.0MB
          • SHA256 e03dd02fdcfb791981c9962827cfcf495f2a47a514c1526efb57f847a9df514a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libffi-8.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\libffi-8.dll
          • Size 38KB
          • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libssl-3.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\libssl-3.dll
          • Size 776KB
          • SHA256 1e4bc0638682bfcbb36f4465d6a2e9944d917a60f05ecc8ddf9e96847e05e13f
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          python3.DLL
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\python3.DLL
          • Size 70KB
          • SHA256 f950ce3bf381d5ffae90cf63ec9c9761f1666d9a570e2f203a7f22da6f8e14f3
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          python313.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\python313.dll
          • Size 5.8MB
          • SHA256 e7119fc5892eab890d44f6df05f44d50cf8c390c35d152e589e0c35781ca8d05
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          pywintypes313.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\pywin32_system32\pywintypes313.dll
          • Size 132KB
          • SHA256 9bb6dece38380abc747dce9ba8b0834a2bec469bc942dbcc8658e30ebdfb59a4
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          select.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\select.pyd
          • Size 32KB
          • SHA256 0dc63cb35f1776d732cb3fbbbdd9e5912b29a98465d3927a8162e8475c0f6809
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Lorem ipsum.txt
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\setuptools\_vendor\jaraco\text\Lorem ipsum.txt
          • Size 1KB
          • SHA256 37fedcffbf73c4eb9f058f47677cb33203a436ff9390e4d38a8e01c9dad28e0b
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          sqlite3.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\sqlite3.dll
          • Size 1.5MB
          • SHA256 f84cc494f7f1c816973334185384988b89300554cee6e952ba558a6dd47c7057
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ucrtbase.dll
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\ucrtbase.dll
          • Size 1.3MB
          • SHA256 d404dc9aa843d53d7e276dd078b2cac8d7aa905e2838a1fe8385278e19ba3810
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          unicodedata.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\unicodedata.pyd
          • Size 695KB
          • SHA256 2b8c8d837e2968751a581e1c6e91447b0db672c2a1496362942df654afddc11d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          win32api.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\win32\win32api.pyd
          • Size 132KB
          • SHA256 b80722e54741563e72e264ca33e1900ee49c927c475e54ef8f94c3eac9032465
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          win32crypt.pyd
          • Path C:\Users\Admin\AppData\Local\Temp\_MEI55962\win32\win32crypt.pyd
          • Size 121KB
          • SHA256 f07fbdcebda155ece29f64a4ca199db544bfa1f3472661f20b569d2b56926123
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download