Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/11/2026, 12:14

General

  • Target
    OurNew.exe
  • Size 6.5MB
  • Sample261108-peatyazyft
  • SHA256 b139ad03c7f1b95d303b00fb0264897e551f5350fba7fe84a8a75569cbb3d33c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • stealc

Botnet
  • saif

C2
  • http://176.65.144.16

rc4.traffic_key
rc4.plain

Signatures

  • Family: Stealc

    Stealc is an infostealer written in C++.

  • Detects Stealc stealer Version 3 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Creates new service(s) 2 TTPs
  • Executes dropped EXE 3 IoCs
  • Stops running service(s) 4 TTPs
  • Power Settings 1 TTPs 8 IoCs

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 4 IoCs
  • Launches sc.exe 14 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OurNew.exe
    "C:\Users\Admin\AppData\Local\Temp\OurNew.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\Temp\build_x64.exe
      "C:\Users\Admin\AppData\Local\Temp\build_x64.exe"
      2⤵
      • Executes dropped EXE
      PID:1708
    • C:\Users\Admin\AppData\Local\Temp\newisbest1.exe
      "C:\Users\Admin\AppData\Local\Temp\newisbest1.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      PID:2816
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5720
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4876
        • C:\Windows\System32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          4⤵
            PID:4572
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          3⤵
          • Launches sc.exe
          PID:432
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          3⤵
          • Launches sc.exe
          PID:1352
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          3⤵
          • Launches sc.exe
          PID:3808
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          3⤵
          • Launches sc.exe
          PID:2044
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          3⤵
          • Launches sc.exe
          PID:4376
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
          3⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:4072
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
          3⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:1804
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
          3⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:5968
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
          3⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:6132
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe delete "GameSDK"
          3⤵
          • Launches sc.exe
          PID:3432
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe create "GameSDK" binpath= "C:\ProgramData\GameSDKs" start= "auto"
          3⤵
          • Launches sc.exe
          PID:2696
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop eventlog
          3⤵
          • Launches sc.exe
          PID:4276
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe start "GameSDK"
          3⤵
          • Launches sc.exe
          PID:1208
    • C:\ProgramData\GameSDKs
      C:\ProgramData\GameSDKs
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2428
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4776
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\Windows\System32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          3⤵
            PID:5704
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          2⤵
          • Launches sc.exe
          PID:5108
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          2⤵
          • Launches sc.exe
          PID:4900
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          2⤵
          • Launches sc.exe
          PID:5736
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          2⤵
          • Launches sc.exe
          PID:2820
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          2⤵
          • Launches sc.exe
          PID:2904
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
          2⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:6008
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
          2⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:1452
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
          2⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:5784
        • C:\Windows\system32\powercfg.exe
          C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
          2⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:1360
        • C:\Windows\system32\conhost.exe
          C:\Windows\system32\conhost.exe
          2⤵
            PID:2692
          • C:\Windows\explorer.exe
            explorer.exe
            2⤵
              PID:128

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                __PSScriptPolicyTest_j33ay3lm.do4.psm1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j33ay3lm.do4.psm1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                build_x64.exe

                • Path C:\Users\Admin\AppData\Local\Temp\build_x64.exe
                • Size 4.0MB
                • SHA256 bb2f673262e55437f275fa422059a624cd01f90f77537e643b937d3478fc1499
                • MD5 SHA1 SHA512 SSDEEP TLSH

                newisbest1.exe

                • Path C:\Users\Admin\AppData\Local\Temp\newisbest1.exe
                • Size 2.5MB
                • SHA256 8725f4b226d133e9f6fdebac0fa56ec59a1e02641df38b9557febfc3d3a33c84
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/128-69-0x0000000140000000-0x0000000140848000-memory.dmp

                memory/128-68-0x0000000140000000-0x0000000140848000-memory.dmp

                memory/128-67-0x0000000140000000-0x0000000140848000-memory.dmp

                memory/1708-22-0x0000000140000000-0x00000001400AF000-memory.dmp

                memory/1708-20-0x0000000140000000-0x00000001400AF000-memory.dmp

                memory/1708-23-0x0000000140000000-0x00000001400AF000-memory.dmp

                memory/1708-21-0x0000000140000000-0x00000001400AF000-memory.dmp

                memory/1800-1-0x0000000000610000-0x0000000000C98000-memory.dmp

                memory/1800-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

                memory/2692-60-0x0000000140000000-0x000000014000D000-memory.dmp

                memory/2692-61-0x0000000140000000-0x000000014000D000-memory.dmp

                memory/2692-62-0x0000000140000000-0x000000014000D000-memory.dmp

                memory/2692-63-0x0000000140000000-0x000000014000D000-memory.dmp

                memory/2692-64-0x0000000140000000-0x000000014000D000-memory.dmp

                memory/4776-58-0x0000024D78560000-0x0000024D78612000-memory.dmp

                memory/5720-38-0x000001807AC60000-0x000001807AC7E000-memory.dmp

                memory/5720-48-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-35-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-40-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-41-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-42-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-43-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-44-0x000001807ABE0000-0x000001807ABEA000-memory.dmp

                memory/5720-45-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-46-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-47-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-39-0x000001807AFF0000-0x000001807B0A2000-memory.dmp

                memory/5720-50-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-34-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-33-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-32-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-31-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-30-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-29-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-28-0x000001807ABF0000-0x000001807AC12000-memory.dmp

                memory/5720-27-0x00007FFE7C7C0000-0x00007FFE7D164000-memory.dmp

                memory/5720-24-0x00007FFE7C94F000-0x00007FFE7C950000-memory.dmp