Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 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.

  • Drops file in System32 directory 2 IoCs
  • 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 5 IoCs

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

  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 51 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:1216
      • C:\Users\Admin\AppData\Local\Temp\fdbf0c19ebcafcf5e4295edc9e4a37836ba580b9a4d63b2a9ccdf8418ed5fe84.exe
        "C:\Users\Admin\AppData\Local\Temp\fdbf0c19ebcafcf5e4295edc9e4a37836ba580b9a4d63b2a9ccdf8418ed5fe84.exe"
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2072
        • C:\Users\Admin\AppData\Local\Temp\31861.scr
          "C:\Users\Admin\AppData\Local\Temp\31861.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:2112
          • C:\Windows\sysnldcvmr.exe
            C:\Windows\sysnldcvmr.exe
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2908
            • C:\Users\Admin\AppData\Local\Temp\205418660.exe
              C:\Users\Admin\AppData\Local\Temp\205418660.exe
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2732
              • 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:2684
                • C:\Windows\system32\reg.exe
                  reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
                  7⤵
                    PID:1932
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2312
                  • C:\Windows\system32\schtasks.exe
                    schtasks /delete /f /tn "Windows Upgrade Manager"
                    7⤵
                      PID:2168
                • C:\Users\Admin\AppData\Local\Temp\2554229240.exe
                  C:\Users\Admin\AppData\Local\Temp\2554229240.exe
                  5⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:2604
                  • C:\Users\Admin\AppData\Local\Temp\2406719177.exe
                    C:\Users\Admin\AppData\Local\Temp\2406719177.exe
                    6⤵
                    • Suspicious use of NtCreateUserProcessOtherParentProcess
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2848
                • C:\Users\Admin\AppData\Local\Temp\852317055.exe
                  C:\Users\Admin\AppData\Local\Temp\852317055.exe
                  5⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:1948
                • C:\Users\Admin\AppData\Local\Temp\217215327.exe
                  C:\Users\Admin\AppData\Local\Temp\217215327.exe
                  5⤵
                  • Executes dropped EXE
                  PID:828
          • 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
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2824
            • C:\Windows\system32\schtasks.exe
              "C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /tn "Microsoft Windows Security" /tr "'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe'"
              3⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2716
          • C:\Windows\System32\schtasks.exe
            C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
            2⤵
              PID:2200
            • 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
              • Drops file in System32 directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:664
              • C:\Windows\system32\schtasks.exe
                "C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /tn "Microsoft Windows Security" /tr "'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe'"
                3⤵
                • Scheduled Task/Job: Scheduled Task
                PID:468
            • C:\Windows\System32\conhost.exe
              C:\Windows\System32\conhost.exe
              2⤵
                PID:1780
              • C:\Windows\System32\dwm.exe
                C:\Windows\System32\dwm.exe
                2⤵
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:2292
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {7672AAAE-DBB7-4565-9B51-5ECEE2F2581D} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
              1⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1084
              • C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe
                "C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"
                2⤵
                • Suspicious use of NtCreateUserProcessOtherParentProcess
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:1036

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\2406719177.exe

              Filesize

              5.6MB

              MD5

              13b26b2c7048a92d6a843c1302618fad

              SHA1

              89c2dfc01ac12ef2704c7669844ec69f1700c1ca

              SHA256

              1753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256

              SHA512

              d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455

            • C:\Users\Admin\AppData\Local\Temp\31861.scr

              Filesize

              79KB

              MD5

              0c883b1d66afce606d9830f48d69d74b

              SHA1

              fe431fe73a4749722496f19b3b3ca0b629b50131

              SHA256

              d921fc993574c8be76553bcf4296d2851e48ee39b958205e69bdfd7cf661d2b1

              SHA512

              c047452a23efad4262479fbfeb5e23f9497d7cefd4cbb58e869801206669c2a0759698c70d18050316798d5d939b989537fdce3842aa742449f5e08ed7fa60a5

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

              Filesize

              7KB

              MD5

              eb64eecb7e26339dea1dd5b72e72ecd0

              SHA1

              e908edeba577062ae21395dc3ee05f78367bd026

              SHA256

              8404533f9aa2b180686bd4edb243453ff9fc293b13c10f39fc3db07fb55eeeb0

              SHA512

              b966f270ee56901bb979923f9940ad01abae07fd13fb04ee991587cc0f9910c24607653e51ce920413d82c2c69112c397fb483f6f46a1acab25e2941c977df58

            • \Users\Admin\AppData\Local\Temp\205418660.exe

              Filesize

              8KB

              MD5

              cb8420e681f68db1bad5ed24e7b22114

              SHA1

              416fc65d538d3622f5ca71c667a11df88a927c31

              SHA256

              5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

              SHA512

              baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

            • \Users\Admin\AppData\Local\Temp\217215327.exe

              Filesize

              53KB

              MD5

              b92ad7e3c510355dd54db74cdf4d522e

              SHA1

              bf4e93257363aa26d02a2cafd1805566923b7ef4

              SHA256

              42a3d89601affbf702b44e56746f2ff19308848e49ba0fae86202345ab19c95f

              SHA512

              1462ebf284a4d20900aec239449693e5d5c73cfd1283d8a4aedc293f82b0b7ee3bc66aa3fdd916377c2e00f64212ce71e455fddd3b960c9de1c88b3886ddc388

            • \Users\Admin\AppData\Local\Temp\2554229240.exe

              Filesize

              10KB

              MD5

              96509ab828867d81c1693b614b22f41d

              SHA1

              c5f82005dbda43cedd86708cc5fc3635a781a67e

              SHA256

              a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

              SHA512

              ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

            • \Users\Admin\AppData\Local\Temp\852317055.exe

              Filesize

              61KB

              MD5

              77c5eb90118287f666886fc34210c176

              SHA1

              d7a59bf4f014304e29df1868ef82fe782432120a

              SHA256

              59a96d66d97e202829ea79a5e0bbf71981c05a13ab700b0120f7d99d33515080

              SHA512

              5577d167ad4748ad7917ff3f792a0caa01ba40638bdf7143c1403d2efcad4019f8da49719ae0ad88febdc1ef64207fba7ca5bb96dc12c334571d30e2e8f22cf9

            • memory/664-75-0x000000001B530000-0x000000001B812000-memory.dmp

              Filesize

              2.9MB

            • memory/664-76-0x00000000026A0000-0x00000000026A8000-memory.dmp

              Filesize

              32KB

            • memory/1036-82-0x000000013FDE0000-0x0000000140377000-memory.dmp

              Filesize

              5.6MB

            • memory/1036-80-0x000000013FDE0000-0x0000000140377000-memory.dmp

              Filesize

              5.6MB

            • memory/1780-88-0x0000000140000000-0x0000000140029000-memory.dmp

              Filesize

              164KB

            • memory/1780-84-0x0000000140000000-0x0000000140029000-memory.dmp

              Filesize

              164KB

            • memory/2292-97-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-104-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-83-0x00000000000B0000-0x00000000000D0000-memory.dmp

              Filesize

              128KB

            • memory/2292-102-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-87-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-100-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-89-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-91-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-93-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2292-95-0x0000000140000000-0x00000001407EF000-memory.dmp

              Filesize

              7.9MB

            • memory/2732-28-0x000000013FEC0000-0x000000013FEC6000-memory.dmp

              Filesize

              24KB

            • memory/2824-54-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

              Filesize

              2.9MB

            • memory/2824-55-0x0000000002720000-0x0000000002728000-memory.dmp

              Filesize

              32KB

            • memory/2848-58-0x000000013F450000-0x000000013F9E7000-memory.dmp

              Filesize

              5.6MB