Analysis

  • max time kernel
    104s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/03/2025, 16:25

General

  • Target

    download.exe

  • Size

    290KB

  • MD5

    244360e3e1f45bf12f428ea3846d2b8a

  • SHA1

    188e9b7018e2dac9beb3b2bfdbeae98dfb9e9978

  • SHA256

    3d5619f53fac5d324a867e69fd61c51a54ad1d3d28a998f3b85f78598703dcac

  • SHA512

    65157507e439c91b8b67c895f962d8e780cfaf8638bd4827cac72abc06b7cbd613373193782c55f58b377d85bc545f2bcd11e4b0c22e677f162bb34d772203ab

  • SSDEEP

    6144:Fuq1IOhVlGyWxgf4w+EowI7kwC6Snw8d9:Fuq1IMlGynfd+EAjC6Swi

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 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.

  • 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 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 SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 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.

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3488
      • C:\Users\Admin\AppData\Local\Temp\download.exe
        "C:\Users\Admin\AppData\Local\Temp\download.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5996
      • C:\Users\Admin\AppData\Local\Temp\download.exe
        "C:\Users\Admin\AppData\Local\Temp\download.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4052
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\download.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4472
        • 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
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4368
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5224
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5032
        • C:\Windows\SysWOW64\Wbem\wmic.exe
          "wmic.exe" os get Caption
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:5960
        • C:\Windows\SysWOW64\Wbem\wmic.exe
          "wmic.exe" computersystem get totalphysicalmemory
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:5096
        • C:\Windows\SysWOW64\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
          • System Location Discovery: System Language Discovery
          PID:448
        • C:\Windows\SysWOW64\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
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:316
        • C:\Windows\SysWOW64\Wbem\wmic.exe
          "wmic" path win32_VideoController get name
          3⤵
          • System Location Discovery: System Language Discovery
          • Detects videocard installed
          PID:1664

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      18KB

      MD5

      bf448336303dc23fed5472c54eab062a

      SHA1

      9e2f42f4fc7c3774bc86a67adf02e1e6529ea162

      SHA256

      56d91fd40a75f05808168c334b468597d84709ec73371d7641c9bba2d5e8eff2

      SHA512

      c98b4f356ac511a28162bb2d5b756a03822c659bc61d0f7f55bee40573d155c84b28984336d1c4aa7f8767a6e633c635bcde3e5586c22d07bbf9e9756e488bb0

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

      Filesize

      15KB

      MD5

      073f2dcae0f85e96e50ae4cd0d11a716

      SHA1

      05ce6142c4a0dd1b5325baafb92459e8c5c3ca8f

      SHA256

      5b8ef36e1e03b6c6b84040ee4025c83cf6ca7454c4f648cb54553611ba65c9bf

      SHA512

      cceb141295b84ce2db6658c4c15cd0b934be90a119c8869b572ab86f39fbbb8d21c7a93281de61bea7a4717040c3af60a0773285c5ff6240951261eaccd4fd5f

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

      Filesize

      18KB

      MD5

      de40bad2d03bc8aadb84398bedf02dc7

      SHA1

      6280381b24a71250d15214cbc30a48f1a9d8770f

      SHA256

      1a73facb4013839af61a8163f59668d8e160a49beb375d07fe378cba27660b34

      SHA512

      3f1048fb98a5d85e1d2a593240e68b857254e2ffe67c86930d87d86ddfd17215ae33854ae39a08dbd3f33a26786af74b9d40e571bc83adffba5cbdc13a9b7e9e

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

      Filesize

      17KB

      MD5

      6afe80bf7329649d87d019a1e890047d

      SHA1

      c1b1becf22f59e08d17a1dea7fbf385918a4f404

      SHA256

      a078fea0f8a8c528aafd49186c0de4dcfcfc080d3dafbf19fd34f599e7fdb605

      SHA512

      3839f95d6f4f7315fd350a2d4c6c907618bcad318162781149717fd2c5d2c7b22f48d169d660b1560ad628a186dcdc842910a4cbb41ae73b4c38399ee87ec2fc

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_p3np1j3k.011.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/316-1482-0x0000000005FF0000-0x000000000603C000-memory.dmp

      Filesize

      304KB

    • memory/316-1480-0x00000000055F0000-0x0000000005944000-memory.dmp

      Filesize

      3.3MB

    • memory/4052-1427-0x0000000006C90000-0x0000000006CAE000-memory.dmp

      Filesize

      120KB

    • memory/4052-1431-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-1357-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/4052-1426-0x0000000006B00000-0x0000000006B50000-memory.dmp

      Filesize

      320KB

    • memory/4052-1425-0x0000000006A80000-0x0000000006AF6000-memory.dmp

      Filesize

      472KB

    • memory/4052-1423-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-1468-0x0000000007860000-0x0000000007872000-memory.dmp

      Filesize

      72KB

    • memory/4052-1467-0x0000000006F00000-0x0000000006F0A000-memory.dmp

      Filesize

      40KB

    • memory/4052-1488-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-1361-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-1362-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-1358-0x0000000005090000-0x0000000005122000-memory.dmp

      Filesize

      584KB

    • memory/4368-1412-0x0000000005480000-0x00000000057D4000-memory.dmp

      Filesize

      3.3MB

    • memory/4472-1400-0x0000000007CE0000-0x0000000007CFA000-memory.dmp

      Filesize

      104KB

    • memory/4472-1407-0x0000000008000000-0x0000000008008000-memory.dmp

      Filesize

      32KB

    • memory/4472-1410-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1406-0x0000000008020000-0x000000000803A000-memory.dmp

      Filesize

      104KB

    • memory/4472-1405-0x0000000007F20000-0x0000000007F34000-memory.dmp

      Filesize

      80KB

    • memory/4472-1404-0x0000000007F10000-0x0000000007F1E000-memory.dmp

      Filesize

      56KB

    • memory/4472-1403-0x0000000007EE0000-0x0000000007EF1000-memory.dmp

      Filesize

      68KB

    • memory/4472-1402-0x0000000007F60000-0x0000000007FF6000-memory.dmp

      Filesize

      600KB

    • memory/4472-1401-0x0000000007D50000-0x0000000007D5A000-memory.dmp

      Filesize

      40KB

    • memory/4472-1399-0x0000000008320000-0x000000000899A000-memory.dmp

      Filesize

      6.5MB

    • memory/4472-1398-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1397-0x0000000007BB0000-0x0000000007C53000-memory.dmp

      Filesize

      652KB

    • memory/4472-1396-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1383-0x0000000007B70000-0x0000000007BA2000-memory.dmp

      Filesize

      200KB

    • memory/4472-1395-0x0000000007B50000-0x0000000007B6E000-memory.dmp

      Filesize

      120KB

    • memory/4472-1385-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1384-0x0000000070040000-0x000000007008C000-memory.dmp

      Filesize

      304KB

    • memory/4472-1382-0x00000000069F0000-0x0000000006A3C000-memory.dmp

      Filesize

      304KB

    • memory/4472-1381-0x00000000069A0000-0x00000000069BE000-memory.dmp

      Filesize

      120KB

    • memory/4472-1380-0x0000000006420000-0x0000000006774000-memory.dmp

      Filesize

      3.3MB

    • memory/4472-1375-0x00000000063B0000-0x0000000006416000-memory.dmp

      Filesize

      408KB

    • memory/4472-1374-0x00000000062D0000-0x0000000006336000-memory.dmp

      Filesize

      408KB

    • memory/4472-1368-0x0000000006230000-0x0000000006252000-memory.dmp

      Filesize

      136KB

    • memory/4472-1365-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1367-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1366-0x0000000005B90000-0x00000000061B8000-memory.dmp

      Filesize

      6.2MB

    • memory/4472-1364-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-1363-0x0000000003090000-0x00000000030C6000-memory.dmp

      Filesize

      216KB

    • memory/5224-1450-0x0000000005950000-0x0000000005CA4000-memory.dmp

      Filesize

      3.3MB

    • memory/5224-1453-0x0000000006520000-0x0000000006542000-memory.dmp

      Filesize

      136KB

    • memory/5224-1452-0x0000000006030000-0x000000000607C000-memory.dmp

      Filesize

      304KB

    • memory/5996-0-0x000000007479E000-0x000000007479F000-memory.dmp

      Filesize

      4KB

    • memory/5996-16-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-50-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-1359-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-1353-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-1349-0x0000000006490000-0x00000000064E4000-memory.dmp

      Filesize

      336KB

    • memory/5996-1348-0x0000000006B30000-0x00000000070D4000-memory.dmp

      Filesize

      5.6MB

    • memory/5996-1347-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-1346-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-1345-0x000000007479E000-0x000000007479F000-memory.dmp

      Filesize

      4KB

    • memory/5996-54-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-1344-0x00000000062C0000-0x000000000630C000-memory.dmp

      Filesize

      304KB

    • memory/5996-1343-0x0000000006140000-0x00000000061AA000-memory.dmp

      Filesize

      424KB

    • memory/5996-1342-0x00000000060D0000-0x000000000613E000-memory.dmp

      Filesize

      440KB

    • memory/5996-1341-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-20-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-34-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-8-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-10-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-12-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-5-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-22-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-24-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-44-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-48-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-26-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-63-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-32-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-36-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-38-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-42-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-40-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-56-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-58-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-60-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-30-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-64-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-66-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-68-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-52-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-1356-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-14-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-46-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-1360-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-28-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-18-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-6-0x0000000005F00000-0x000000000600F000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-4-0x0000000005F00000-0x0000000006016000-memory.dmp

      Filesize

      1.1MB

    • memory/5996-3-0x0000000002FF0000-0x0000000002FF6000-memory.dmp

      Filesize

      24KB

    • memory/5996-2-0x0000000074790000-0x0000000074F40000-memory.dmp

      Filesize

      7.7MB

    • memory/5996-1-0x0000000000CD0000-0x0000000000D1E000-memory.dmp

      Filesize

      312KB