Analysis

  • max time kernel
    148s
  • max time network
    153s
  • 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 14:02

General

  • Target

    loggnp.exe

  • Size

    1.3MB

  • MD5

    47daa94b04ff038ade5342c9de2d93e7

  • SHA1

    e8918b3c526002213b94b5d497d63d2b98f6c354

  • SHA256

    7d75b643c71063ea63b7cf241bf138c5546ac59399456776938ae1dee6dcfd0a

  • SHA512

    abbfb1417edfde19694759d63ae175192ce180e937b443e4b485c32eee22389f319a618f9883934a6f878fd5d6530ab7b1f6058f616e79906f6adb8bb9115bf2

  • SSDEEP

    24576:xuDXTIGaPhEYzUzA0nOLYuVuoWIT/ntnA0zggkJboApVzHLEQrdCNYffzHLS:kDjlabwz9OLYdm9zItRnzzG4fzu

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1310956212174458972/01ouKda6-3AmEWrhEQUcvcuJ4ujY0Otp_7PM-1jBl6WDXtIAmSNAI9bAOD8VNjVQtml0

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:404
    • 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:2032
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2196
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe"
        3⤵
        • Views/modifies file attributes
        PID:1444
      • 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:2804
      • 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:4672
      • 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:1224
      • 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:840
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2724
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:2564
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:2132
          • 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:1400
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:4664
          • 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:2124
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:2360
        • 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:4868
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" csproduct get uuid
            3⤵
              PID:5024
            • C:\Windows\SYSTEM32\attrib.exe
              "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe"
              3⤵
              • Views/modifies file attributes
              PID:548
            • 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:4520
            • 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:1308
            • 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:3220
            • 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:400
            • C:\Windows\System32\Wbem\wmic.exe
              "wmic.exe" os get Caption
              3⤵
                PID:3396
              • C:\Windows\System32\Wbem\wmic.exe
                "wmic.exe" computersystem get totalphysicalmemory
                3⤵
                  PID:1092
                • C:\Windows\System32\Wbem\wmic.exe
                  "wmic.exe" csproduct get uuid
                  3⤵
                    PID:1752
                  • 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:640
                  • C:\Windows\System32\Wbem\wmic.exe
                    "wmic" path win32_VideoController get name
                    3⤵
                    • Detects videocard installed
                    PID:4908
                  • 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:2288
                    • C:\Windows\system32\PING.EXE
                      ping localhost
                      4⤵
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:3988

              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

                d04a2991e3807ca4a4073c023b2d20b3

                SHA1

                86aeb69fd3f1c1515feb18ed345191124735775f

                SHA256

                33cf5b77be962c1121404da98638346eaa2286b64e45ae71e3cb5e95671b000d

                SHA512

                90be20a64f603d7124a84e807d1dc5d6e36bc67caf6b9b282b2c918d1beb5b9f16abb4788dcc5a2df06ad1a6606c8929962962c3db51586cd00c976b7f79b8c5

              • 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

                2af06a6b36db9473e4a7d9c7ab72b70b

                SHA1

                8ef34b9b961e51bdd1b8d7d9db2ec1b0a4764645

                SHA256

                18a2aa7e245c6732f95fb7749b2b4d29007f2c56a9c5bfbc5e3c127bdfe5f158

                SHA512

                3495567a5d5af94ae27be51313d9e2630c52017d808042fe0d56baa34fa1d246eb15c253d14c77c77a1d8f2f1c81680e623044ae95415b095696e7fa141ac7cf

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

                Filesize

                1KB

                MD5

                79f6952813009f51247491052ca9ebbb

                SHA1

                78210dbe806bcde87a5f00201c9068bc1737a9ca

                SHA256

                bee2da5d5a697d09df4aa2b1c374a083a49b4f319c11da53c43ce9520b72a5dd

                SHA512

                cd019d3dc84665413a23cb2f4ed8fbe6bd6673928144d7af31e70d46dc24ce876bd5ffb11cb65fd5532f8f00bd793dd883200069b06dc93becf5d1db0399c22b

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

                Filesize

                944B

                MD5

                531f08ac3a06c5a3a09412a10fd95626

                SHA1

                ad756b5c27e710d81ece8a6d4fe865230cdc2bbf

                SHA256

                793902b936877a86b5d46d629a1c6d8c68ac8d42981788ddd4ede0f3381af6b0

                SHA512

                ac8c608fae29fa780400ac84e79b86c4a34ee7068f4f2c8056e4a2209a3ba62ae7716eaea2924e8412eab38ad003d59d4538d675019e50f15b3571e14c52fa73

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

                Filesize

                948B

                MD5

                c65738617888921a153bd9b1ef516ee7

                SHA1

                5245e71ea3c181d76320c857b639272ac9e079b1

                SHA256

                4640ba4001fd16a593315299cbdd4988dc2c7075820687f1018aac40aca95c26

                SHA512

                2e2a0ebd93f9d8dd07a7599054bce232683e9add9a35e77b584618040bcfd84a42545352519ec4736cc379002210b6f3ed2d905591c6925c0981b0392b495bfa

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

                Filesize

                1KB

                MD5

                88be3bc8a7f90e3953298c0fdbec4d72

                SHA1

                f4969784ad421cc80ef45608727aacd0f6bf2e4b

                SHA256

                533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

                SHA512

                4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

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

                Filesize

                1KB

                MD5

                2984662ba3f86d7fcf26758b5b76754d

                SHA1

                bc2a43ffd898222ee84406313f3834f226928379

                SHA256

                f0815f797b0c1829745dd65985f28d459688f91ceb2f3d76fed2d4309589bcde

                SHA512

                a06251a7a14559ebf5627a3c6b03fda9ded1d4ee44991283c824ccf5011cdf67665696d2d9b23507cbb3e3b9943b9e9f79ef28d3657eb61fb99920225417ab11

              • 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_pqb5qbry.k4x.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/2032-105-0x00007FFEC0CA0000-0x00007FFEC1761000-memory.dmp

                Filesize

                10.8MB

              • memory/2032-85-0x000001C14C850000-0x000001C14C862000-memory.dmp

                Filesize

                72KB

              • memory/2032-84-0x000001C133CE0000-0x000001C133CEA000-memory.dmp

                Filesize

                40KB

              • memory/2032-45-0x000001C14C7D0000-0x000001C14C846000-memory.dmp

                Filesize

                472KB

              • memory/2032-47-0x000001C14C670000-0x000001C14C68E000-memory.dmp

                Filesize

                120KB

              • memory/2032-18-0x00007FFEC0CA0000-0x00007FFEC1761000-memory.dmp

                Filesize

                10.8MB

              • memory/2032-46-0x000001C133D00000-0x000001C133D50000-memory.dmp

                Filesize

                320KB

              • memory/2032-17-0x000001C131FF0000-0x000001C132072000-memory.dmp

                Filesize

                520KB

              • memory/2032-16-0x00007FFEC0CA3000-0x00007FFEC0CA5000-memory.dmp

                Filesize

                8KB

              • memory/2804-28-0x0000021262730000-0x0000021262752000-memory.dmp

                Filesize

                136KB

              • memory/4868-116-0x0000022146DC0000-0x0000022146E42000-memory.dmp

                Filesize

                520KB