Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • submitted
    12-07-2024 22:35

General

  • Target

    3O.exe

  • Size

    972KB

  • MD5

    e9e10384209bc3b39b6f5cd6f33314e7

  • SHA1

    40f0bed19c2f77417ab130e7be434c6e0e33bc0a

  • SHA256

    b63721f19f217379cbafdaa58a1a2d16975b82547a5cb8701604f53e5ace059b

  • SHA512

    b391ef944dcc1d4f1158579ea4f7c8f248c5b3ee58f4483a2ba60956953763c6a0ce641707a583c6329e1c58265494065552901a0152cea5d6d87cd5d40501be

  • SSDEEP

    24576:HnsJ39LyjbJkQFMhmC+6GD94I8AvqGELnszd42X3W6FY:HnsHyjtk2MYC5GDlFY

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1260639029204881480/iDveNlzEvkWz3nrGTBbCyvAJNF9-L44ep1CFuZ9ffhZ1uZM9fJhFC39LcEEWSQ9kHBqS

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Signatures

  • Detect Umbral payload 9 IoCs
  • Umbral

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

  • Umbral family
  • Xred

    Xred is backdoor written in Delphi.

  • Xred 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.

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3O.exe
    "C:\Users\Admin\AppData\Local\Temp\3O.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Users\Admin\AppData\Local\Temp\._cache_3O.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_3O.exe"
      2⤵
      • Executes dropped EXE
      PID:2680
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2660
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2968
        • C:\Windows\system32\attrib.exe
          "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
          4⤵
          • Views/modifies file attributes
          PID:2436
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1000
        • 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
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1764
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2152
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1772
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" os get Caption
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3008
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" computersystem get totalphysicalmemory
          4⤵
            PID:3052
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" csproduct get uuid
            4⤵
              PID:1620
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
              4⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:916
            • C:\Windows\System32\Wbem\wmic.exe
              "wmic" path win32_VideoController get name
              4⤵
              • Detects videocard installed
              PID:1732
            • C:\Windows\system32\cmd.exe
              "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" && pause
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Suspicious use of WriteProcessMemory
              PID:1848
              • C:\Windows\system32\PING.EXE
                ping localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:1948
      • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
        1⤵
        • System Location Discovery: System Language Discovery
        • Enumerates system info in registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:2028

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\Synaptics\Synaptics.exe

        Filesize

        972KB

        MD5

        e9e10384209bc3b39b6f5cd6f33314e7

        SHA1

        40f0bed19c2f77417ab130e7be434c6e0e33bc0a

        SHA256

        b63721f19f217379cbafdaa58a1a2d16975b82547a5cb8701604f53e5ace059b

        SHA512

        b391ef944dcc1d4f1158579ea4f7c8f248c5b3ee58f4483a2ba60956953763c6a0ce641707a583c6329e1c58265494065552901a0152cea5d6d87cd5d40501be

      • C:\Users\Admin\AppData\Local\Temp\CjnClFyj.xlsm

        Filesize

        17KB

        MD5

        e566fc53051035e1e6fd0ed1823de0f9

        SHA1

        00bc96c48b98676ecd67e81a6f1d7754e4156044

        SHA256

        8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

        SHA512

        a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

        Filesize

        7KB

        MD5

        cc2ebe0a534679db98b5935fa5795e45

        SHA1

        c625a97e16eac8cd4b3782d6a3d5ccbcf9eb8817

        SHA256

        5dc00048db4da89a80c8d6518779680e9f655553d1e32b86f965d180cb5f7d95

        SHA512

        98a120d4fcaa06a24d011c2d4cee3141eb21698ac9579362f2e49388fda0314c60184580d72451c00b9fc0fb60e837fb15a3adc35dc556775abe22c8394c62c9

      • \Users\Admin\AppData\Local\Temp\._cache_3O.exe

        Filesize

        227KB

        MD5

        564b355897ddc57a49b9c0385673b7c4

        SHA1

        830b0bd8d603c384a3ca59de5889c9ccb98233b1

        SHA256

        ccf452b1c9ef7ad173d702e74cb17c13bee478432ed764259d4b33634aea438c

        SHA512

        c2ebcea2723156c3534641b796a0303fedc06e4ba304e285d898ad819fa4eac4cac0bda79831d60097db4a7a0c76a8af616ff0c5ecbb327200724810523a12a5

      • memory/916-78-0x0000000001F70000-0x0000000001F78000-memory.dmp

        Filesize

        32KB

      • memory/1000-43-0x0000000001E80000-0x0000000001E88000-memory.dmp

        Filesize

        32KB

      • memory/1000-42-0x000000001B670000-0x000000001B952000-memory.dmp

        Filesize

        2.9MB

      • memory/1764-49-0x000000001B5B0000-0x000000001B892000-memory.dmp

        Filesize

        2.9MB

      • memory/1764-50-0x0000000002910000-0x0000000002918000-memory.dmp

        Filesize

        32KB

      • memory/2028-82-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/2564-102-0x0000000000400000-0x00000000004F9000-memory.dmp

        Filesize

        996KB

      • memory/2564-103-0x0000000000400000-0x00000000004F9000-memory.dmp

        Filesize

        996KB

      • memory/2564-127-0x0000000000400000-0x00000000004F9000-memory.dmp

        Filesize

        996KB

      • memory/2564-138-0x0000000000400000-0x00000000004F9000-memory.dmp

        Filesize

        996KB

      • memory/2660-36-0x0000000001390000-0x00000000013D0000-memory.dmp

        Filesize

        256KB

      • memory/2680-28-0x0000000001290000-0x00000000012D0000-memory.dmp

        Filesize

        256KB

      • memory/2756-2-0x0000000000230000-0x0000000000231000-memory.dmp

        Filesize

        4KB

      • memory/2756-25-0x0000000000400000-0x00000000004F9000-memory.dmp

        Filesize

        996KB