Analysis

  • max time kernel
    74s
  • max time network
    83s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14-11-2024 22:11

General

  • Target

    Downloader.exe

  • Size

    202KB

  • MD5

    fca21eb23c210b8ed73302745ea78f70

  • SHA1

    143486e415dedb630de5c776beb3c8b150dd9bf1

  • SHA256

    33a9357923338bee03659341ec7705dc76a2e03245f084311fa758e94c74c3f0

  • SHA512

    41e8c5a6a5b77b6da39a4801494dc83a26dd5010482d907a35a15e51472fcf8c4c4367532c578660760144a39326b6a4f38973a3bd9c43d8f75e0141f9c92e40

  • SSDEEP

    3072:NWF1Sss2XaOvu+v7QC2mCAbtoJOBW0rArwrkut57cIrDjy6Hy7GKbY64IrHi:NWF0+XaOvuyycWNrwrk6y70JIr

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.66/

http://91.202.233.141/

Wallets

0xCa90599132C4D88907Bd8E046540284aa468a035

TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6

qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9

AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z

LdgchXq1sKbAaAJ1EXAPSRBzLb8jnTZstT

MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q

4AtjkCVKbtEC3UEN77SQHuH9i1XkzNiRi5VCbA2XGsJh46nJSXfGQn4GjLuupCqmC57Lo7LvKmFUyRfhtJSvKvuw3h9ReKK

15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK

ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

3ESHude8zUHksQg1h6hHmzY79BS36L91Yn

DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2

bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr

bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd

Attributes
  • mutex

    753f85d83d

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Extracted

Family

phorphiex

C2

http://185.215.113.66

http://185.215.113.84

Attributes
  • mutex

    Klipux

Signatures

  • 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.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs
  • Xmrig family
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 8 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 19 IoCs
  • Suspicious use of SendNotifyMessage 19 IoCs
  • Suspicious use of WriteProcessMemory 29 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.

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3236
      • C:\Users\Admin\AppData\Local\Temp\Downloader.exe
        "C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5140
        • C:\Users\Admin\AppData\Local\Temp\9124.exe
          "C:\Users\Admin\AppData\Local\Temp\9124.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:6024
          • C:\Users\Admin\AppData\Local\Temp\1610628745.exe
            C:\Users\Admin\AppData\Local\Temp\1610628745.exe
            4⤵
            • 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:4452
            • C:\Windows\sysnldcvmr.exe
              C:\Windows\sysnldcvmr.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1628
              • C:\Users\Admin\AppData\Local\Temp\427810713.exe
                C:\Users\Admin\AppData\Local\Temp\427810713.exe
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:3464
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                  7⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3116
                  • C:\Windows\system32\reg.exe
                    reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                    8⤵
                      PID:6056
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
                    7⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2884
                    • C:\Windows\system32\schtasks.exe
                      schtasks /delete /f /tn "Windows Upgrade Manager"
                      8⤵
                        PID:4512
                  • C:\Users\Admin\AppData\Local\Temp\2107331277.exe
                    C:\Users\Admin\AppData\Local\Temp\2107331277.exe
                    6⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:236
                  • C:\Users\Admin\AppData\Local\Temp\1881819634.exe
                    C:\Users\Admin\AppData\Local\Temp\1881819634.exe
                    6⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:3160
                    • C:\Users\Admin\AppData\Local\Temp\2443212411.exe
                      C:\Users\Admin\AppData\Local\Temp\2443212411.exe
                      7⤵
                      • Suspicious use of NtCreateUserProcessOtherParentProcess
                      • Executes dropped EXE
                      • Suspicious behavior: EnumeratesProcesses
                      PID:5248
          • 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; }
            2⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3328
          • C:\Windows\System32\schtasks.exe
            C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
            2⤵
              PID:2084
            • 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; }
              2⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:5460
            • C:\Windows\System32\conhost.exe
              C:\Windows\System32\conhost.exe
              2⤵
                PID:4328
              • C:\Windows\System32\dwm.exe
                C:\Windows\System32\dwm.exe
                2⤵
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:408
            • C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe
              "C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"
              1⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1688

            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

              4764ec833397133003e2e24b080cd7ce

              SHA1

              03c8926d7afc4e605719aee53ef2ce53f6f314cc

              SHA256

              88331ffd23c1d6cfef379ab5366333f56ee41ff083f0421915302a492cb2a833

              SHA512

              e9ad86bc3878f4f3e1a38a191864857f24969e0f11d0636cb76523900e97b06d286c120460c38e7f93039356f45900d32ddda990abffb1958af173dfb1aedac1

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

              Filesize

              1KB

              MD5

              3163f8092680b1c56e7e3ff17755ea06

              SHA1

              ae97c84950d221af726aa45cacdb457fdd9b62d4

              SHA256

              189139cc4bb111d740535bf28a211668e48a542db75ff7cb702c55e36254e60c

              SHA512

              0343b6d555df218cb4dcf961485eeb6eff207bafea67e07a4b447a6e810eaa6139e775e94dc04a03cca455c22a7c8959fd957b2f5019b83c4725c3bb78d281c1

            • C:\Users\Admin\AppData\Local\Temp\1610628745.exe

              Filesize

              79KB

              MD5

              0c883b1d66afce606d9830f48d69d74b

              SHA1

              fe431fe73a4749722496f19b3b3ca0b629b50131

              SHA256

              d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1

              SHA512

              c047452a23efad4262479fbfeb5e23f9497d7cefd4cbb58e869801206669c2a0759698c70d18050316798d5d939b989537fdce3842aa742449f5e08ed7fa60a5

            • C:\Users\Admin\AppData\Local\Temp\1881819634.exe

              Filesize

              10KB

              MD5

              96509ab828867d81c1693b614b22f41d

              SHA1

              c5f82005dbda43cedd86708cc5fc3635a781a67e

              SHA256

              a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

              SHA512

              ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

            • C:\Users\Admin\AppData\Local\Temp\2107331277.exe

              Filesize

              49KB

              MD5

              6946486673f91392724e944be9ca9249

              SHA1

              e74009983ced1fa683cda30b52ae889bc2ca6395

              SHA256

              885fbe678b117e5e0eace7c64980f6072c31290eb36d0e14953d6a2d12eff9cd

              SHA512

              e3241f85def0efefd36b3ffb6722ab025e8523082e4cf3e7f35ff86a9a452b5a50454c3b9530dfdad3929f74a6e42bf2a2cf35e404af588f778e0579345b38c9

            • C:\Users\Admin\AppData\Local\Temp\2443212411.exe

              Filesize

              5.6MB

              MD5

              13b26b2c7048a92d6a843c1302618fad

              SHA1

              89c2dfc01ac12ef2704c7669844ec69f1700c1ca

              SHA256

              1753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256

              SHA512

              d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455

            • C:\Users\Admin\AppData\Local\Temp\427810713.exe

              Filesize

              8KB

              MD5

              cb8420e681f68db1bad5ed24e7b22114

              SHA1

              416fc65d538d3622f5ca71c667a11df88a927c31

              SHA256

              5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

              SHA512

              baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

            • C:\Users\Admin\AppData\Local\Temp\9124.exe

              Filesize

              9KB

              MD5

              8d8e6c7952a9dc7c0c73911c4dbc5518

              SHA1

              9098da03b33b2c822065b49d5220359c275d5e94

              SHA256

              feb4c3ae4566f0acbb9e0f55417b61fefd89dc50a4e684df780813fb01d61278

              SHA512

              91a573843c28dd32a9f31a60ba977f9a3d4bb19ffd1b7254333e09bcecef348c1b3220a348ebb2cb08edb57d56cb7737f026519da52199c9dc62c10aea236645

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jctowajt.dwf.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • memory/408-85-0x00007FF72C220000-0x00007FF72CA0F000-memory.dmp

              Filesize

              7.9MB

            • memory/408-83-0x00007FF72C220000-0x00007FF72CA0F000-memory.dmp

              Filesize

              7.9MB

            • memory/408-80-0x000001EAF9FC0000-0x000001EAF9FE0000-memory.dmp

              Filesize

              128KB

            • memory/1688-79-0x00007FF7834D0000-0x00007FF783A67000-memory.dmp

              Filesize

              5.6MB

            • memory/3328-54-0x000001186F2D0000-0x000001186F2F2000-memory.dmp

              Filesize

              136KB

            • memory/3464-25-0x0000000000C00000-0x0000000000C06000-memory.dmp

              Filesize

              24KB

            • memory/4328-82-0x00007FF639900000-0x00007FF639929000-memory.dmp

              Filesize

              164KB

            • memory/4328-84-0x00007FF639900000-0x00007FF639929000-memory.dmp

              Filesize

              164KB

            • memory/5248-62-0x00007FF602930000-0x00007FF602EC7000-memory.dmp

              Filesize

              5.6MB