Analysis Overview
SHA256
1b0d0ecefb21f83beaa85e8db567ed04e0555a8511e39124325082a5a5f29917
Threat Level: Known bad
The file XClient.exe was found to be: Known bad.
Malicious Activity Summary
Xworm family
Detect Xworm Payload
Contains code to disable Windows Defender
Xworm
Disables Task Manager via registry modification
Command and Scripting Interpreter: PowerShell
Loads dropped DLL
Drops startup file
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Checks SCSI registry key(s)
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-27 20:10
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-27 20:10
Reported
2024-05-27 20:15
Platform
win10v2004-20240508-en
Max time kernel
300s
Max time network
294s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xworm
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | 0.tcp.eu.ngrok.io | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
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\XClient.exe'
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /0
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
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\Roaming\XClient.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Windows\system32\notepad.exe
"C:\Windows\system32\notepad.exe"
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /0
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /delete /f /tn "XClient"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBB20.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 172.67.19.24:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | 24.19.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.192.31.165:14601 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 165.31.192.18.in-addr.arpa | udp |
| DE | 18.192.31.165:14601 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.136.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.211.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.158.249.75:14601 | 0.tcp.eu.ngrok.io | tcp |
| DE | 18.158.249.75:14601 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 75.249.158.18.in-addr.arpa | udp |
| DE | 18.158.249.75:14601 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.192.31.165:14601 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.158.249.75:14601 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | udp | |
| N/A | 52.182.143.215:443 | tcp |
Files
memory/4652-0-0x00007FFB43783000-0x00007FFB43785000-memory.dmp
memory/4652-1-0x0000000000890000-0x00000000008D0000-memory.dmp
memory/4652-2-0x00007FFB43780000-0x00007FFB44241000-memory.dmp
memory/2524-3-0x00007FFB43780000-0x00007FFB44241000-memory.dmp
memory/2524-9-0x0000018943E10000-0x0000018943E32000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fpr4yfuy.rbx.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2524-14-0x00007FFB43780000-0x00007FFB44241000-memory.dmp
memory/2524-15-0x00007FFB43780000-0x00007FFB44241000-memory.dmp
memory/2524-18-0x00007FFB43780000-0x00007FFB44241000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 77d622bb1a5b250869a3238b9bc1402b |
| SHA1 | d47f4003c2554b9dfc4c16f22460b331886b191b |
| SHA256 | f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb |
| SHA512 | d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9 |
memory/700-30-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-32-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-31-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-42-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-41-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-40-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-38-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-37-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-36-0x0000015258E90000-0x0000015258E91000-memory.dmp
memory/700-39-0x0000015258E90000-0x0000015258E91000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | d8cb3e9459807e35f02130fad3f9860d |
| SHA1 | 5af7f32cb8a30e850892b15e9164030a041f4bd6 |
| SHA256 | 2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68 |
| SHA512 | 045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | eb1ad317bd25b55b2bbdce8a28a74a94 |
| SHA1 | 98a3978be4d10d62e7411946474579ee5bdc5ea6 |
| SHA256 | 9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98 |
| SHA512 | d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk
| MD5 | 69d9cef409e51719a3ea0d8e10c5d197 |
| SHA1 | aa5f234fc844f0b59481fbadd01163fa31ed2d32 |
| SHA256 | dd9788ab50ef79ed598234a5e081136c2662453ed349af6ace5bd75bfe660130 |
| SHA512 | 899a07a1e863677048d7c81429d827ba71ab3d30fe7419ee7da8569caf6ea25c5c6d84a6ad9c812c716c678238a230717733ac77af1bb1babce4b5cc72501a12 |
C:\Users\Admin\AppData\Roaming\XClient.exe
| MD5 | 5f2b71ced38f31bc32d985be59b54320 |
| SHA1 | 837152e48cf7b9623d914e0dd8de6c1141765616 |
| SHA256 | 1b0d0ecefb21f83beaa85e8db567ed04e0555a8511e39124325082a5a5f29917 |
| SHA512 | c199f8490aa555b916e2f17963adf03f6b467a6dccd81a2e00b4718043d90d8e35560be8f2ae704709b079ac75ea793c7950905b824b1a1a2b9e43dc84ccb0c9 |
memory/4652-72-0x00007FFB43783000-0x00007FFB43785000-memory.dmp
memory/4652-73-0x00007FFB43780000-0x00007FFB44241000-memory.dmp
memory/4652-74-0x000000001CA40000-0x000000001CA4C000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log
| MD5 | 2ff39f6c7249774be85fd60a8f9a245e |
| SHA1 | 684ff36b31aedc1e587c8496c02722c6698c1c4e |
| SHA256 | e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced |
| SHA512 | 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1 |
memory/4652-93-0x000000001D270000-0x000000001D2AA000-memory.dmp
memory/4652-94-0x000000001D2B0000-0x000000001D2BA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp32CE.tmp
| MD5 | 1b942faa8e8b1008a8c3c1004ba57349 |
| SHA1 | cd99977f6c1819b12b33240b784ca816dfe2cb91 |
| SHA256 | 555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc |
| SHA512 | 5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43 |
memory/4652-99-0x000000001C5D0000-0x000000001C5DE000-memory.dmp
memory/4652-100-0x000000001C5E0000-0x000000001C5EA000-memory.dmp
memory/4652-102-0x000000001C6F0000-0x000000001C6FC000-memory.dmp
memory/4652-104-0x000000001B7E0000-0x000000001B7EA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpBB20.tmp.bat
| MD5 | e8a2d784577de97812b274610232abce |
| SHA1 | 65e9f38cfb2f03fdd4d05931c159b936e1db97e9 |
| SHA256 | e6064393a2ca0179627a08103ceeed0f9e89e7fe39e15249e2ea51ccf3324d9b |
| SHA512 | 0b5911d959d6f31cbffde15c8efd411f3457c65af63ba583670f298d458762361051c25d9c0d6d1d0363f28b27650f2e24c061ee9072eb89d6a3daa1dbdab7d7 |
memory/4652-109-0x00007FFB43780000-0x00007FFB44241000-memory.dmp