Overview

overview

10

Static

static

3

Downloader.exe

windows10-ltsc 2021-x64

10

Downloader.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    86s
  • max time network
    88s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    14-11-2024 22:11

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General

  • Target

    Downloader.exe

  • Size

    202KB

  • MD5

    fca21eb23c210b8ed73302745ea78f70

  • SHA1

    143486e415dedb630de5c776beb3c8b150dd9bf1

  • SHA256

    33a9357923338bee03659341ec7705dc76a2e03245f084311fa758e94c74c3f0

  • SHA512

    41e8c5a6a5b77b6da39a4801494dc83a26dd5010482d907a35a15e51472fcf8c4c4367532c578660760144a39326b6a4f38973a3bd9c43d8f75e0141f9c92e40

  • SSDEEP

    3072:NWF1Sss2XaOvu+v7QC2mCAbtoJOBW0rArwrkut57cIrDjy6Hy7GKbY64IrHi:NWF0+XaOvuyycWNrwrk6y70JIr

Score
10/10
phorphiexxmrigdiscoveryexecutionloaderminerpersistencetrojanworm

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
  • 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.

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

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

    minerxmrig
  • XMRig Miner payload 4 IoCs
    miner
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

    execution
  • 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 9 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 35 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.

    persistence

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3548
      • 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:1176
        • C:\Users\Admin\AppData\Local\Temp\9D1B.exe
          "C:\Users\Admin\AppData\Local\Temp\9D1B.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4440
          • C:\Users\Admin\AppData\Local\Temp\176766182.exe
            C:\Users\Admin\AppData\Local\Temp\176766182.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:2168
            • C:\Windows\sysnldcvmr.exe
              C:\Windows\sysnldcvmr.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:560
              • C:\Users\Admin\AppData\Local\Temp\2224221839.exe
                C:\Users\Admin\AppData\Local\Temp\2224221839.exe
                6⤵
                • Checks computer location settings
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:4924
                • 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:1268
                  • C:\Windows\system32\reg.exe
                    reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                    8⤵
                      PID:2532
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
                    7⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1084
                    • C:\Windows\system32\schtasks.exe
                      schtasks /delete /f /tn "Windows Upgrade Manager"
                      8⤵
                        PID:2012
                  • C:\Users\Admin\AppData\Local\Temp\1185310144.exe
                    C:\Users\Admin\AppData\Local\Temp\1185310144.exe
                    6⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:1540
                  • C:\Users\Admin\AppData\Local\Temp\2615931573.exe
                    C:\Users\Admin\AppData\Local\Temp\2615931573.exe
                    6⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:3748
                    • C:\Users\Admin\AppData\Local\Temp\1004721785.exe
                      C:\Users\Admin\AppData\Local\Temp\1004721785.exe
                      7⤵
                      • Suspicious use of NtCreateUserProcessOtherParentProcess
                      • Executes dropped EXE
                      • Suspicious behavior: EnumeratesProcesses
                      PID:900
          • C:\Windows\system32\taskmgr.exe
            "C:\Windows\system32\taskmgr.exe" /7
            2⤵
            • Checks SCSI registry key(s)
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            PID:3320
          • 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:2112
          • C:\Windows\System32\schtasks.exe
            C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
            2⤵
              PID:3996
            • 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:4284
            • C:\Windows\System32\conhost.exe
              C:\Windows\System32\conhost.exe
              2⤵
                PID:5080
              • C:\Windows\System32\dwm.exe
                C:\Windows\System32\dwm.exe
                2⤵
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:4876
              • C:\Users\Admin\Desktop\Downloader.exe
                "C:\Users\Admin\Desktop\Downloader.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:4476
                • C:\Users\Admin\AppData\Local\Temp\BB8B.exe
                  "C:\Users\Admin\AppData\Local\Temp\BB8B.exe"
                  3⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:1224
                  • C:\Users\Admin\AppData\Local\Temp\495814481.exe
                    C:\Users\Admin\AppData\Local\Temp\495814481.exe
                    4⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:3684
            • C:\Windows\System32\rundll32.exe
              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
              1⤵
                PID:1928
              • 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:1980

              Network

              MITRE ATT&CK Enterprise v15

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              Downloads

              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                Filesize

                3KB

                MD5

                beddacb1b8cdf9b2701ec9ba52fc7a57

                SHA1

                42fc5858911200e8615ce0c223d19a3521468773

                SHA256

                839ab90ed4c452c99e6610f0bdc0be6290475e34407e5d3fa9c5fb38b6eeaf0e

                SHA512

                b738727610cccc12e4271974d7cf95cfaf143bc4010e3e3a90fe31ae922630821d46dad255a3ba7044c45cefaca3cb40696a46d55be0e5b3cc0b58cb5abfc04a

                Download Submit

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\NEKLO0T0\5[1]
                Filesize

                108KB

                MD5

                1fcb78fb6cf9720e9d9494c42142d885

                SHA1

                fef9c2e728ab9d56ce9ed28934b3182b6f1d5379

                SHA256

                84652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02

                SHA512

                cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3

                Download Submit

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

                1KB

                MD5

                0572dcb97ad2dcefce1c4843a3d1678a

                SHA1

                ead93679bb3c1e2b40f8e0eacadd100e19edd412

                SHA256

                053d89dbed84cc70a6103bc4ab4a575d41f32bb5fc4e243bbf5f052ff688ca85

                SHA512

                d8f4dc26a4866f4c6327108701e91c7460eba2a7e834aac1a0a1e808fae5fa11addce62f85799b3c1a62e055593f606c5163b05dfa82222c00dfee55da7e998d

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\1004721785.exe
                Filesize

                5.6MB

                MD5

                13b26b2c7048a92d6a843c1302618fad

                SHA1

                89c2dfc01ac12ef2704c7669844ec69f1700c1ca

                SHA256

                1753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256

                SHA512

                d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\1185310144.exe
                Filesize

                49KB

                MD5

                6946486673f91392724e944be9ca9249

                SHA1

                e74009983ced1fa683cda30b52ae889bc2ca6395

                SHA256

                885fbe678b117e5e0eace7c64980f6072c31290eb36d0e14953d6a2d12eff9cd

                SHA512

                e3241f85def0efefd36b3ffb6722ab025e8523082e4cf3e7f35ff86a9a452b5a50454c3b9530dfdad3929f74a6e42bf2a2cf35e404af588f778e0579345b38c9

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\176766182.exe
                Filesize

                79KB

                MD5

                0c883b1d66afce606d9830f48d69d74b

                SHA1

                fe431fe73a4749722496f19b3b3ca0b629b50131

                SHA256

                d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1

                SHA512

                c047452a23efad4262479fbfeb5e23f9497d7cefd4cbb58e869801206669c2a0759698c70d18050316798d5d939b989537fdce3842aa742449f5e08ed7fa60a5

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\2224221839.exe
                Filesize

                8KB

                MD5

                cb8420e681f68db1bad5ed24e7b22114

                SHA1

                416fc65d538d3622f5ca71c667a11df88a927c31

                SHA256

                5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

                SHA512

                baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\2615931573.exe
                Filesize

                10KB

                MD5

                96509ab828867d81c1693b614b22f41d

                SHA1

                c5f82005dbda43cedd86708cc5fc3635a781a67e

                SHA256

                a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

                SHA512

                ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\9D1B.exe
                Filesize

                9KB

                MD5

                8d8e6c7952a9dc7c0c73911c4dbc5518

                SHA1

                9098da03b33b2c822065b49d5220359c275d5e94

                SHA256

                feb4c3ae4566f0acbb9e0f55417b61fefd89dc50a4e684df780813fb01d61278

                SHA512

                91a573843c28dd32a9f31a60ba977f9a3d4bb19ffd1b7254333e09bcecef348c1b3220a348ebb2cb08edb57d56cb7737f026519da52199c9dc62c10aea236645

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w3zufkp0.ewr.ps1
                Filesize

                60B

                MD5

                d17fe0a3f47be24a6453e9ef58c94641

                SHA1

                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                SHA256

                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                SHA512

                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                Download Submit

              • memory/900-72-0x00007FF662CE0000-0x00007FF663277000-memory.dmp

                Filesize

                5.6MB

                Download

              • memory/1980-90-0x00007FF7FBCC0000-0x00007FF7FC257000-memory.dmp

                Filesize

                5.6MB

                Download

              • memory/2112-59-0x0000020362CA0000-0x0000020362CC2000-memory.dmp

                Filesize

                136KB

                Download

              • memory/3320-31-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-30-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-29-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-23-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-24-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-32-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-33-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-22-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-34-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3320-28-0x000001C154A40000-0x000001C154A41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/4876-91-0x000001E5777D0000-0x000001E5777F0000-memory.dmp

                Filesize

                128KB

                Download

              • memory/4876-94-0x00007FF641BD0000-0x00007FF6423BF000-memory.dmp

                Filesize

                7.9MB

                Download

              • memory/4876-102-0x00007FF641BD0000-0x00007FF6423BF000-memory.dmp

                Filesize

                7.9MB

                Download

              • memory/4876-115-0x00007FF641BD0000-0x00007FF6423BF000-memory.dmp

                Filesize

                7.9MB

                Download

              • memory/4924-21-0x0000000000880000-0x0000000000886000-memory.dmp

                Filesize

                24KB

                Download

              • memory/5080-93-0x00007FF73EC20000-0x00007FF73EC49000-memory.dmp

                Filesize

                164KB

                Download

              • memory/5080-101-0x00007FF73EC20000-0x00007FF73EC49000-memory.dmp

                Filesize

                164KB

                Download