Analysis Overview
SHA256
3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f
Threat Level: Known bad
The file XClient.exe was found to be: Known bad.
Malicious Activity Summary
Xworm family
Xworm
Detect Xworm Payload
Executes dropped EXE
Checks computer location settings
Drops startup file
Adds Run key to start application
Looks up external IP address via web service
Enumerates physical storage devices
Unsigned PE
Uses Task Scheduler COM API
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Checks SCSI registry key(s)
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-30 11:10
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
2024-05-30 11:10
Reported
2024-05-30 11:14
Platform
win10v2004-20240508-en
Max time kernel
111s
Max time network
108s
Command Line
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xworm
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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\Local\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\XClient.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Local\\XClient.exe" | C:\Users\Admin\AppData\Local\Temp\XClient.exe | 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 |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings | C:\Windows\system32\taskmgr.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 behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\XClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\XClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1072 wrote to memory of 748 | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | C:\Windows\System32\schtasks.exe |
| PID 1072 wrote to memory of 748 | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.exe | C:\Windows\System32\schtasks.exe |
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\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Local\XClient.exe"
C:\Users\Admin\AppData\Local\XClient.exe
C:\Users\Admin\AppData\Local\XClient.exe
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
C:\Users\Admin\AppData\Local\XClient.exe
C:\Users\Admin\AppData\Local\XClient.exe
C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | scamov-48667.portmap.host | udp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| US | 8.8.8.8:53 | 99.193.161.193.in-addr.arpa | udp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| US | 8.8.8.8:53 | 203.33.253.131.in-addr.arpa | udp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
| DE | 193.161.193.99:48667 | scamov-48667.portmap.host | tcp |
Files
memory/1072-0-0x00007FFD5BCF3000-0x00007FFD5BCF5000-memory.dmp
memory/1072-1-0x00000000002E0000-0x00000000002F6000-memory.dmp
memory/1072-2-0x00007FFD5BCF0000-0x00007FFD5C7B1000-memory.dmp
C:\Users\Admin\AppData\Local\XClient.exe
| MD5 | 3f171ed4261c46329a1bcc62ebb19519 |
| SHA1 | 06768df330b8012ee3d0cb22723408636ba7c17a |
| SHA256 | 3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f |
| SHA512 | 81e90ab476967a8ca6b88f8060fe72b56450dae6300adfbcef346dfb4c523e054da05d192209ff53771a8b49ad6a6922151d905a5a6bbc8decfe551ab757a06d |
memory/1072-11-0x00007FFD5BCF3000-0x00007FFD5BCF5000-memory.dmp
memory/1072-12-0x00007FFD5BCF0000-0x00007FFD5C7B1000-memory.dmp
memory/3308-15-0x00007FFD5BCF0000-0x00007FFD5C7B1000-memory.dmp
memory/3308-17-0x00007FFD5BCF0000-0x00007FFD5C7B1000-memory.dmp
memory/4804-18-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-19-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-20-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-30-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-29-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-28-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-27-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-26-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-25-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
memory/4804-24-0x00000219F44A0000-0x00000219F44A1000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk
| MD5 | 50247afc42bb4334b6bf24ae1226fca8 |
| SHA1 | 427cc9926171a22d59d561d9bd3c144e42b92d27 |
| SHA256 | 8c912e7eeae0d377c73959167f89d55e276c0e017540ba1a7827a1afa9e580bc |
| SHA512 | 4444ae0d4c6ce969a038f763b4de4f728e9222e870f53db1973940e3ca4885f4bfc91d7094c633bbd2edf371e3f2c4fae0104eaf06c2d606cbfed0473fee3a94 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log
| MD5 | 2ff39f6c7249774be85fd60a8f9a245e |
| SHA1 | 684ff36b31aedc1e587c8496c02722c6698c1c4e |
| SHA256 | e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced |
| SHA512 | 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1 |