Analysis Overview
SHA256
ea4f53c53702abac24804d4cc21275147b4534e2d243fd5b040c056161b4f59b
Threat Level: Known bad
The file XClient.exe was found to be: Known bad.
Malicious Activity Summary
Xworm family
Detect Xworm Payload
Xworm
Command and Scripting Interpreter: PowerShell
Drops startup file
Executes dropped EXE
Checks computer location settings
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-28 09:36
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
2024-05-28 09:36
Reported
2024-05-28 09:39
Platform
win7-20240508-en
Max time kernel
147s
Max time network
143s
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 |
| 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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svhost.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\svhost.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\svhost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Roaming\\svhost.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 | 0.tcp.eu.ngrok.io | 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
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| 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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.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:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.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\Roaming\svhost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| 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\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\svhost.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svhost" /tr "C:\Users\Admin\AppData\Roaming\svhost.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {38309555-7223-428E-BAEB-9D57D3D58335} S-1-5-21-268080393-3149932598-1824759070-1000:UHRQKJCP\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
Network
| Country | Destination | Domain | Proto |
| 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 | 0.tcp.eu.ngrok.io | udp |
| DE | 3.125.223.134:14859 | 0.tcp.eu.ngrok.io | tcp |
| DE | 3.125.223.134:14859 | 0.tcp.eu.ngrok.io | tcp |
Files
memory/2928-0-0x000007FEF55D3000-0x000007FEF55D4000-memory.dmp
memory/2928-1-0x0000000000B20000-0x0000000000B60000-memory.dmp
memory/2928-2-0x000007FEF55D0000-0x000007FEF5FBC000-memory.dmp
memory/2748-7-0x000000001B6A0000-0x000000001B982000-memory.dmp
memory/2748-8-0x00000000028E0000-0x00000000028E8000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
| MD5 | 441b462eca541aa458bcd40a4ec86114 |
| SHA1 | 795f4298b92dd8ce1068e1d2863b19dcebf90306 |
| SHA256 | abc9e9d454075d20bd0578ece93958050213df6ee9bf2cc5ecff0f930e296b44 |
| SHA512 | 5939a731db21bebceec0a3311b0889f01064b0d753de1c1211a0bce76abbca1aa10f493184b619eca18bcca16f28e7e5c8457af54318771c5f1708da86c60f19 |
memory/2752-14-0x000000001B4D0000-0x000000001B7B2000-memory.dmp
memory/2752-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp
\??\PIPE\srvsvc
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
memory/2928-31-0x00000000020A0000-0x00000000020AC000-memory.dmp
memory/2928-32-0x000007FEF55D3000-0x000007FEF55D4000-memory.dmp
memory/2928-33-0x000007FEF55D0000-0x000007FEF5FBC000-memory.dmp
C:\Users\Admin\AppData\Roaming\svhost.exe
| MD5 | 4ef596fd9602c129462a1df1a62bfab4 |
| SHA1 | 77f43ec4b19a876d9f025a1b157162dd94182d22 |
| SHA256 | ea4f53c53702abac24804d4cc21275147b4534e2d243fd5b040c056161b4f59b |
| SHA512 | 082d839e7264043a549f10d6ee1056aaac2ded2d1a269b9a4d3828e30cee3921cb283d1d44c64b359f4c3ac58618a050958d8ffd1cf67e1568a91fe04eaebbf2 |
memory/1092-38-0x0000000000CC0000-0x0000000000D00000-memory.dmp
memory/1636-40-0x00000000003E0000-0x0000000000420000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-28 09:36
Reported
2024-05-28 09:39
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
152s
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
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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\svhost.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\svhost.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\svhost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Roaming\\svhost.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 | 0.tcp.eu.ngrok.io | 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
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| 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 |
| 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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\XClient.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:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.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\Roaming\svhost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svhost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| 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\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\svhost.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svhost" /tr "C:\Users\Admin\AppData\Roaming\svhost.exe"
C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.tcp.eu.ngrok.io | udp |
| DE | 18.192.31.165:14859 | 0.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 165.31.192.18.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
memory/1164-0-0x00007FFF07973000-0x00007FFF07975000-memory.dmp
memory/1164-1-0x0000000000670000-0x00000000006B0000-memory.dmp
memory/1164-2-0x00007FFF07970000-0x00007FFF08431000-memory.dmp
memory/4348-3-0x00007FFF07970000-0x00007FFF08431000-memory.dmp
memory/4348-13-0x000001D473330000-0x000001D473352000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4fgxo0at.j1k.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4348-14-0x00007FFF07970000-0x00007FFF08431000-memory.dmp
memory/4348-15-0x00007FFF07970000-0x00007FFF08431000-memory.dmp
memory/4348-18-0x00007FFF07970000-0x00007FFF08431000-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 | e448fe0d240184c6597a31d3be2ced58 |
| SHA1 | 372b8d8c19246d3e38cd3ba123cc0f56070f03cd |
| SHA256 | c660f0db85a1e7f0f68db19868979bf50bd541531babf77a701e1b1ce5e6a391 |
| SHA512 | 0b7f7eae7700d32b18eee3677cb7f89b46ace717fa7e6b501d6c47d54f15dff7e12b49f5a7d36a6ffe4c16165c7d55162db4f3621db545b6af638035752beab4 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | eb1ad317bd25b55b2bbdce8a28a74a94 |
| SHA1 | 98a3978be4d10d62e7411946474579ee5bdc5ea6 |
| SHA256 | 9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98 |
| SHA512 | d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 56b6347d620b998ae20075494ac7b1e1 |
| SHA1 | ffa1da29c41ac2f64193de584b1c849424de08c1 |
| SHA256 | 376a826ddf8334d1915f59e85a09ed0d951ab952bf09364148349320c18c044c |
| SHA512 | 9b8847de9dae6113c6ebfad4d0c557364a9b2f5a30ea3a9f4b7f56c0c44aaa08fb8309884eaf8ef06cc0d1f2378782ea06e04cbbe63bf7eb9d27572984f6ce43 |
memory/1164-57-0x00007FFF07973000-0x00007FFF07975000-memory.dmp
memory/1164-58-0x00007FFF07970000-0x00007FFF08431000-memory.dmp
C:\Users\Admin\AppData\Roaming\svhost.exe
| MD5 | 4ef596fd9602c129462a1df1a62bfab4 |
| SHA1 | 77f43ec4b19a876d9f025a1b157162dd94182d22 |
| SHA256 | ea4f53c53702abac24804d4cc21275147b4534e2d243fd5b040c056161b4f59b |
| SHA512 | 082d839e7264043a549f10d6ee1056aaac2ded2d1a269b9a4d3828e30cee3921cb283d1d44c64b359f4c3ac58618a050958d8ffd1cf67e1568a91fe04eaebbf2 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svhost.exe.log
| MD5 | 2ff39f6c7249774be85fd60a8f9a245e |
| SHA1 | 684ff36b31aedc1e587c8496c02722c6698c1c4e |
| SHA256 | e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced |
| SHA512 | 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1 |