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Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/11/2024, 14:40

General

  • Target

    fdbf0c19ebcafcf5e4295edc9e4a37836ba580b9a4d63b2a9ccdf8418ed5fe84.exe

  • Size

    10KB

  • MD5

    82894caeb7e149bb38d344fbc2a821d9

  • SHA1

    bf86bd33666e58f291bc9135a95f67a7483cde52

  • SHA256

    fdbf0c19ebcafcf5e4295edc9e4a37836ba580b9a4d63b2a9ccdf8418ed5fe84

  • SHA512

    fff4b4e8f5d03f6dea5cffc58e59455362269410cb48ce5a2ced621f8489e01bfddd0f99d32b181186fe63ff64c1aa0172b735c008018dba61119143b5e9ddf3

  • SSDEEP

    192:4luii0852nhe8D9+6X/2X1JxTh3thW8yV:4lTdu2nhpsiuFV32V

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.84

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 11 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 8 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
  • 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 64 IoCs
  • Suspicious use of SendNotifyMessage 64 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:3432
      • C:\Users\Admin\AppData\Local\Temp\fdbf0c19ebcafcf5e4295edc9e4a37836ba580b9a4d63b2a9ccdf8418ed5fe84.exe
        "C:\Users\Admin\AppData\Local\Temp\fdbf0c19ebcafcf5e4295edc9e4a37836ba580b9a4d63b2a9ccdf8418ed5fe84.exe"
        2⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1060
        • C:\Users\Admin\AppData\Local\Temp\25726.scr
          "C:\Users\Admin\AppData\Local\Temp\25726.scr" /S
          3⤵
          • 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:1124
          • C:\Windows\sysnldcvmr.exe
            C:\Windows\sysnldcvmr.exe
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3676
            • C:\Users\Admin\AppData\Local\Temp\2057028011.exe
              C:\Users\Admin\AppData\Local\Temp\2057028011.exe
              5⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3976
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:3536
                • C:\Windows\system32\reg.exe
                  reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                  7⤵
                    PID:2684
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1196
                  • C:\Windows\system32\schtasks.exe
                    schtasks /delete /f /tn "Windows Upgrade Manager"
                    7⤵
                      PID:4892
                • C:\Users\Admin\AppData\Local\Temp\1273215859.exe
                  C:\Users\Admin\AppData\Local\Temp\1273215859.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:3632
                  • C:\Users\Admin\AppData\Local\Temp\1036638633.exe
                    C:\Users\Admin\AppData\Local\Temp\1036638633.exe
                    6⤵
                    • Suspicious use of NtCreateUserProcessOtherParentProcess
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3656
                • C:\Users\Admin\AppData\Local\Temp\22803755.exe
                  C:\Users\Admin\AppData\Local\Temp\22803755.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:2008
                • C:\Users\Admin\AppData\Local\Temp\3279224880.exe
                  C:\Users\Admin\AppData\Local\Temp\3279224880.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:1984
          • 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:1836
          • C:\Windows\System32\schtasks.exe
            C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
            2⤵
              PID:620
            • 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:2016
            • C:\Windows\System32\conhost.exe
              C:\Windows\System32\conhost.exe
              2⤵
                PID:3276
              • C:\Windows\System32\dwm.exe
                C:\Windows\System32\dwm.exe
                2⤵
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:4608
            • 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:4692

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2057028011.exe.log

              Filesize

              425B

              MD5

              fff5cbccb6b31b40f834b8f4778a779a

              SHA1

              899ed0377e89f1ed434cfeecc5bc0163ebdf0454

              SHA256

              b8f7e4ed81764db56b9c09050f68c5a26af78d8a5e2443e75e0e1aa7cd2ccd76

              SHA512

              1a188a14c667bc31d2651b220aa762be9cce4a75713217846fbe472a307c7bbc6e3c27617f75f489902a534d9184648d204d03ee956ac57b11aa90551248b8f9

            • 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\PowerShell\StartupProfileData-NonInteractive

              Filesize

              1KB

              MD5

              62ba4ea474aa0661cb364833cd6f342e

              SHA1

              bedea24ce0ef32bd8396e3b8f1fc6c2f27d49420

              SHA256

              2c470425abe0953386b291a5539ce6530beb77d03743356c6606de1332dedad5

              SHA512

              b97f14afab17976e43fbb953bea4a1b1fb98f15efd9267fca7e67cf23ed53bdeb5b9b6d2e3b7fca7df858b9f1d154da62200d4819d2eeab39aa998352211f621

            • C:\Users\Admin\AppData\Local\Temp\1036638633.exe

              Filesize

              5.6MB

              MD5

              13b26b2c7048a92d6a843c1302618fad

              SHA1

              89c2dfc01ac12ef2704c7669844ec69f1700c1ca

              SHA256

              1753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256

              SHA512

              d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455

            • C:\Users\Admin\AppData\Local\Temp\1273215859.exe

              Filesize

              10KB

              MD5

              96509ab828867d81c1693b614b22f41d

              SHA1

              c5f82005dbda43cedd86708cc5fc3635a781a67e

              SHA256

              a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

              SHA512

              ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

            • C:\Users\Admin\AppData\Local\Temp\2057028011.exe

              Filesize

              8KB

              MD5

              cb8420e681f68db1bad5ed24e7b22114

              SHA1

              416fc65d538d3622f5ca71c667a11df88a927c31

              SHA256

              5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

              SHA512

              baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

            • C:\Users\Admin\AppData\Local\Temp\22803755.exe

              Filesize

              61KB

              MD5

              77c5eb90118287f666886fc34210c176

              SHA1

              d7a59bf4f014304e29df1868ef82fe782432120a

              SHA256

              59a96d66d97e202829ea79a5e0bbf71981c05a13ab700b0120f7d99d33515080

              SHA512

              5577d167ad4748ad7917ff3f792a0caa01ba40638bdf7143c1403d2efcad4019f8da49719ae0ad88febdc1ef64207fba7ca5bb96dc12c334571d30e2e8f22cf9

            • C:\Users\Admin\AppData\Local\Temp\25726.scr

              Filesize

              79KB

              MD5

              0c883b1d66afce606d9830f48d69d74b

              SHA1

              fe431fe73a4749722496f19b3b3ca0b629b50131

              SHA256

              d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1

              SHA512

              c047452a23efad4262479fbfeb5e23f9497d7cefd4cbb58e869801206669c2a0759698c70d18050316798d5d939b989537fdce3842aa742449f5e08ed7fa60a5

            • C:\Users\Admin\AppData\Local\Temp\3279224880.exe

              Filesize

              53KB

              MD5

              b92ad7e3c510355dd54db74cdf4d522e

              SHA1

              bf4e93257363aa26d02a2cafd1805566923b7ef4

              SHA256

              42a3d89601affbf702b44e56746f2ff19308848e49ba0fae86202345ab19c95f

              SHA512

              1462ebf284a4d20900aec239449693e5d5c73cfd1283d8a4aedc293f82b0b7ee3bc66aa3fdd916377c2e00f64212ce71e455fddd3b960c9de1c88b3886ddc388

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_53oarjh4.uex.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • memory/1836-54-0x0000025440460000-0x0000025440482000-memory.dmp

              Filesize

              136KB

            • memory/3276-83-0x00007FF6BE320000-0x00007FF6BE349000-memory.dmp

              Filesize

              164KB

            • memory/3276-86-0x00007FF6BE320000-0x00007FF6BE349000-memory.dmp

              Filesize

              164KB

            • memory/3656-62-0x00007FF6BA7C0000-0x00007FF6BAD57000-memory.dmp

              Filesize

              5.6MB

            • memory/3976-21-0x00000000009E0000-0x00000000009E6000-memory.dmp

              Filesize

              24KB

            • memory/3976-20-0x00007FFDBFBF3000-0x00007FFDBFBF5000-memory.dmp

              Filesize

              8KB

            • memory/4608-82-0x0000024597890000-0x00000245978B0000-memory.dmp

              Filesize

              128KB

            • memory/4608-84-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-87-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-89-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-91-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-93-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-95-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-97-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-100-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-102-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4608-104-0x00007FF6A7940000-0x00007FF6A812F000-memory.dmp

              Filesize

              7.9MB

            • memory/4692-81-0x00007FF709940000-0x00007FF709ED7000-memory.dmp

              Filesize

              5.6MB