Analysis

  • max time kernel
    46s
  • max time network
    46s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/06/2024, 06:50

General

  • Target
    Discord.exe
  • Size 37KB
  • Sample240622-hmepja1cmc
  • SHA256 db77279f6b996ae07ac5fd3b1edb3ecf9525087c96bbcf2d7a2a4c100db2cc7b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 147.185.221.20:33255

Mutex
  • L38G3mo1mQdyxT1M

Attributes
  • Install_directory

    %Public%

  • install_file

    Discord.exe

aes.plain

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 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:\Users\Admin\AppData\Local\Temp\Discord.exe
    "C:\Users\Admin\AppData\Local\Temp\Discord.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    PID:1812
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Discord.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2504
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Discord.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4688
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\Discord.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2356
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Discord.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1856
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Discord" /tr "C:\Users\Public\Discord.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1316
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0x8c,0x108,0x7ff9008dab58,0x7ff9008dab68,0x7ff9008dab78
      2⤵
        PID:3344
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=556 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:2
        2⤵
          PID:2040
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2072 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
          2⤵
            PID:2104
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=2116 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
            2⤵
              PID:1008
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3080 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
              2⤵
                PID:3636
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3092 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                2⤵
                  PID:388
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4308 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                  2⤵
                    PID:4796
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4584 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
                    2⤵
                      PID:2500
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4784 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
                      2⤵
                        PID:3884
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=4860 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                        2⤵
                          PID:4172
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=4220 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                          2⤵
                            PID:1932
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --mojo-platform-channel-handle=4728 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                            2⤵
                              PID:1124
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=4692 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                              2⤵
                                PID:4692
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --mojo-platform-channel-handle=3156 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                                2⤵
                                  PID:3224
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --mojo-platform-channel-handle=3188 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                                  2⤵
                                    PID:5084
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5016 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
                                    2⤵
                                      PID:4560
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4584 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
                                      2⤵
                                        PID:2556
                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4804 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:8
                                        2⤵
                                          PID:3280
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --mojo-platform-channel-handle=3228 --field-trial-handle=1896,i,7475602516137002873,11707444049827913651,131072 /prefetch:1
                                          2⤵
                                            PID:876
                                        • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                                          "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                                          1⤵
                                            PID:1572
                                          • C:\Users\Public\Discord.exe
                                            C:\Users\Public\Discord.exe
                                            1⤵
                                            • Executes dropped EXE
                                            • Suspicious use of AdjustPrivilegeToken
                                            PID:724

                                          Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

                                                Loading Replay Monitor...

                                                Downloads

                                                SCT Auditing Pending Reports

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                                • Size 2B
                                                • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                                • MD5 SHA1 SHA512

                                                Preferences

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                • Size 7KB
                                                • SHA256 f3ca7f30960f22ff8a9f335731ac9df4caf1b66b962bd3b31f0902c126a43e1f
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Local State

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                • Size 257KB
                                                • SHA256 1103f66ed2cb6df69eba68e3d0b790e57c9dba11430858cd5075264a7706aa5b
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Local State

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                • Size 257KB
                                                • SHA256 25f1be9f4359e1871b6777428369054cb8834bc7bfe31312654d63d05c6740cf
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Module Info Cache

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache
                                                • Size 91KB
                                                • SHA256 fb85d712210037e1bc1660883040b08fc657899aeee0ebcd27da2ad4f14cb31c
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Module Info Cache~RFe580124.TMP

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache~RFe580124.TMP
                                                • Size 88KB
                                                • SHA256 b773a04e98e248161109ad41e1427d3fc594364112b9894bf2c0249437cc68f7
                                                • MD5 SHA1 SHA512 SSDEEP

                                                powershell.exe.log

                                                • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                                                • Size 2KB
                                                • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
                                                • MD5 SHA1 SHA512

                                                StartupProfileData-NonInteractive

                                                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                                • Size 944B
                                                • SHA256 692ec20c7039170fb199510f0436181fd155e6b4516d4d1c9e1675adf99aaa7f
                                                • MD5 SHA1 SHA512

                                                StartupProfileData-NonInteractive

                                                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                                • Size 944B
                                                • SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
                                                • MD5 SHA1 SHA512

                                                StartupProfileData-NonInteractive

                                                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                                • Size 944B
                                                • SHA256 77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5
                                                • MD5 SHA1 SHA512

                                                __PSScriptPolicyTest_fma2ug1r.2vu.ps1

                                                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fma2ug1r.2vu.ps1
                                                • Size 60B
                                                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                                • MD5 SHA1 SHA512

                                                Discord.exe

                                                • Path C:\Users\Public\Discord.exe
                                                • Size 37KB
                                                • SHA256 db77279f6b996ae07ac5fd3b1edb3ecf9525087c96bbcf2d7a2a4c100db2cc7b
                                                • MD5 SHA1 SHA512 SSDEEP

                                                memory/1812-105-0x00007FF9036E3000-0x00007FF9036E5000-memory.dmp

                                                memory/1812-0-0x00007FF9036E3000-0x00007FF9036E5000-memory.dmp

                                                memory/1812-107-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

                                                memory/1812-3-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

                                                memory/1812-1-0x0000000000260000-0x0000000000270000-memory.dmp

                                                memory/2504-52-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

                                                memory/2504-68-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

                                                memory/2504-63-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

                                                memory/2504-51-0x000001A2F6820000-0x000001A2F6842000-memory.dmp

                                                memory/2504-62-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp