Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
22/05/2026, 02:54
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe
Resource
win10v2004-20260513-en
13 signatures
150 seconds
General
- Target xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe
- Size 10.8MB
- Sample260522-ddv8psfy8x
- SHA256 a403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1
- MD5 4c4d232c28d1081d032892b418be1583
- SHA1 51271091408567f4fab11254bcc77da983ec25a8
- SHA512 fb6dcc593a612d9b2f4eac2aee508ffff70a69dc2cf0f8eb175a464c99145593bc8cc269f04876e61274f0807c5f6696ebca5298b360ca32f782e5fa9373f7f4
- SSDEEP 12288:SstE/7ioLLu8nuMoBpxB0IgP5sOttsiBPJnu:SwG7ionu8n5U/0bhtsiBxu
- TLSH T11BB6A419E253CF6E187713E055655FFCAEEEB14E696A1687D0F9E24332E606C80BF840
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
xworm
Version
-
5.0
C2
-
6.tcp.eu.ngrok.io:29843
Mutex
-
n2a9kAFC9fPtli8N
Attributes
-
Install_directory
%AppData%
-
install_file
svhost.exe
aes.plain
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/5308-47-0x0000000000400000-0x0000000000410000-memory.dmp family_xworm - 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.
pid Process 4648 powershell.exe 4748 powershell.exe 5184 powershell.exe 2032 powershell.exe - Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsService.exe xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe - Executes dropped EXE 2 IoCs
pid Process 1612 winupdate.exe 1384 svhost.exe - Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdateManager = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Updates\\winupdate.exe" xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdateManager = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Updates\\winupdate.exe" winupdate.exe Set value (str) \REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Roaming\\svhost.exe" cvtres.exe - Contacts third-party web service commonly abused for C2 1 TTPs 1 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 1 6.tcp.eu.ngrok.io - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3732 set thread context of 5308 3732 xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe 80 PID 1612 set thread context of 3636 1612 winupdate.exe 83 - System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cvtres.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cvtres.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2032 powershell.exe 2032 powershell.exe 4648 powershell.exe 4648 powershell.exe 4748 powershell.exe 4748 powershell.exe 5184 powershell.exe 5184 powershell.exe 5308 cvtres.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 5308 cvtres.exe Token: SeDebugPrivilege 3636 cvtres.exe Token: SeDebugPrivilege 2032 powershell.exe Token: SeDebugPrivilege 4648 powershell.exe Token: SeDebugPrivilege 4748 powershell.exe Token: SeDebugPrivilege 5184 powershell.exe Token: SeDebugPrivilege 5308 cvtres.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 5308 cvtres.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3732 wrote to memory of 5308 3732 xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe 80 PID 3732 wrote to memory of 5308 3732 xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe 80 PID 3732 wrote to memory of 5308 3732 xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe 80 PID 3732 wrote to memory of 5308 3732 xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe 80 PID 3732 wrote to memory of 5308 3732 xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe 80 PID 1612 wrote to memory of 3636 1612 winupdate.exe 83 PID 1612 wrote to memory of 3636 1612 winupdate.exe 83 PID 1612 wrote to memory of 3636 1612 winupdate.exe 83 PID 1612 wrote to memory of 3636 1612 winupdate.exe 83 PID 1612 wrote to memory of 3636 1612 winupdate.exe 83 PID 5308 wrote to memory of 2032 5308 cvtres.exe 84 PID 5308 wrote to memory of 4648 5308 cvtres.exe 86 PID 5308 wrote to memory of 4748 5308 cvtres.exe 88 PID 5308 wrote to memory of 5184 5308 cvtres.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe"C:\Users\Admin\AppData\Local\Temp\xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3732 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5308 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2032
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'cvtres.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4648
-
-
C:\Windows\SysWOW64\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'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4748
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5184
-
-
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Updates\winupdate.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Updates\winupdate.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3636
-
-
C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1384
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
- MD5 d0c46cad6c0778401e21910bd6b56b70
- SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
- SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
- TLSH T113415C303161A5D84D435B1205286ED5E3EF478AAFAC8F5CB569231DCD2A44BD7121F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 4dd46624644a48a4eec2e089e2a17c799ed30b399144f94150cfe192acf6b002
- MD5 23c4d92b9595d689a188efda681ddc5f
- SHA1 0f9c7142b25ba8e845597b35178d73f0c32f2a87
- SHA512 7d8a6b06a7f39dc7a053d2aeccc06de292659ef962dff361533c61a984ce4caad4683da8f3da027d60a3fbe235a69da1aee320bf69d92fd580d13a119e03b1da
- SSDEEP 384:fL3HhkSS1HHy+RKqFRHEMEzgnnN/js2gtgKNrqU59h9J0u0iFZX:DOSSNyIKqRPEUN/j7gtgarqWh9J0u0k
- TLSH T13592B5AE611F22C3C89563B8D107050FE8F2DE8D431913D8BB2E9F7B89AC95E917D548
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 d697256eca3cbf4695b7470c84d27d5fa93df71af89e611366369f0b5d86db94
- MD5 2f4a424da5678b6c1c62bce7b96e71fd
- SHA1 3e537f47c95b5d6dd7101553a75f43d875ab4004
- SHA512 b6bb6fa1241f099ce057cb0b1d16057b3cf1d862577c23a0316b7fde5059e824d2858a7e936b1331b1c7382b7621ab342b49b595cc57425ceedb8e38d1b14d2b
- SSDEEP 384:kTHht1SSpcYH8QHRnAOh3MR61nRjsaRzbv5O9+RO5nYE9pDU1C:cSS8QHRnBMUrjxv5wGOmCUM
- TLSH T10F922A6E321F2697C0A623B4D017079FEEF0DECE430413DD67585E3B06DA6A684A95EC
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 87eb66fc2eb7186ab20d63534abde360b228081bdcb84bde3c6725e0cbf7b8b0
- MD5 06c05638e16a753cfba6a6090f42c164
- SHA1 75f9d79130b6eff00595df0e99805ffcbef97870
- SHA512 1999f9c87c1e118361bbc55a4dedf601f592059dac8f681893633f438d3659cbf5a2dde640562fc4d7d5aa6ce43ebd0f2f4d02bbf6042836e4ba3f4326b7072e
- SSDEEP 384:xL3Hht1iSptTl7eHtAFTnnpYaRzbFsOZSTRCAnYEYapDU1C:5piSp7eHY1tnZGC3iUM
- TLSH T1C292076E322F269BC4A663F9C423079BEDA09ECF430493DD6718193B05CB27184A95EC
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mtxuu00a.uaj.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
- Size 2KB
- SHA256 0671027e0ce254c8086c6194068d3d91b068d493621ae071da12471a36822c4f
- MD5 46bc01573c78692f6c466ad41cd4d9a2
- SHA1 f67e9d895ca5682748998d1f893c7ba6e0bd4e31
- SHA512 38cdfec6e40b5006cdf8b9170557027efc368c192d21d82e3ae445340cb14b759cd0028736acefb8561ab11ddbee601cfb7b47a3524be69b8ebc4922c28eaae5
- TLSH T1FB51D92D48FCC8778358828BEB01BED21E21B2416A6C4D0AA7C0D3CC6441EB93DE67D5
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
- Size 430B
- SHA256 51bc365572ef10ebf133fd3f8d48316d25bcad893631a4717aa543ecb3d07780
- MD5 a5e7997a61b72ed25eacb119c841326f
- SHA1 8d8d800f12b40c431bcc5dadec4cd144c95b79b0
- SHA512 12e542642f58e4f28dfd9f7c82d06943e4bb583b78147f259d4ae2ef72c7e85ab773340d9c89ce6fbc2282f48fd114edbf9da68e840387d912fc79b042d109f2
- TLSH T177E0C27D48FC9E7343159B9F9B8279C22E59B605266C8D11A3D0C7C820419382DF63D5
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
- Size 3KB
- SHA256 a6fa333ec382a70064e6eabe64dae3384df9ad4fa9958ba64606b5f318b981bd
- MD5 130310134c7cea5f7a60d83f65fd9af2
- SHA1 f647ebea8ecf7c211481630f2347e81983159463
- SHA512 85d3bd5541a4d2ff24adda86a23f1bde26fb63da0da901ef0871f6827f5583da079e0cf01c23f711c3e3e50a970fcd335ca9219d21286157c580eec319f0a2b5
- TLSH T1C351B82D48FCC9778359938BEB01BED22E25B2116A684D1AB7C0D2CC6441E783DE67D6
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
- Size 3KB
- SHA256 a542a0193d0f030a85232397e205945d23f7fa0738f1217865f2947c16727072
- MD5 e49a0d1f6e022e8e95e897625e3f7226
- SHA1 c96dbc5e31622ca94a0aafe3473ebf6b802f443c
- SHA512 4f82f8ecda58e9aebc64afb62a84d5b0b56f8874056e4fb84e06039db8948777ca1326b0c9a84f9e3233928753e4a4a58b79cd2774a00d50be807153a9208d94
- TLSH T1FC81E82D48FCC9778358D28BEB41BDD22E25B2116A784E1AB7C0D2CC6841E783DE67D5
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
- Size 5KB
- SHA256 f05d79051a0274545e6f872027a5ce710052c82b3f253ddd26cad490c6547678
- MD5 12476a5be380d88b0d3cb0dea2ad83a4
- SHA1 60fa32faca4239cec496676d2e1558b124f86ef6
- SHA512 b4665f00a524026e020dd13331849429442f095b0d837e9c27d864d9b5fd7b51e1e017718361f09f7908346100878728d85ef68c9fd11d791c69ec703a218ea7
- SSDEEP 96:ogUQGvLFhj22s4FxIJtXarUr4Obu2tTql1:DUQG/jD5oJtvrvr5q1
- TLSH T152B11F2D48FCC9774359C28BEB80BDD21E21B2156A785E1AB7C0D2CC6441EB83DE67D5
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Updates\winupdate.exe
- Size 10.8MB
- SHA256 a403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1
- MD5 4c4d232c28d1081d032892b418be1583
- SHA1 51271091408567f4fab11254bcc77da983ec25a8
- SHA512 fb6dcc593a612d9b2f4eac2aee508ffff70a69dc2cf0f8eb175a464c99145593bc8cc269f04876e61274f0807c5f6696ebca5298b360ca32f782e5fa9373f7f4
- SSDEEP 12288:SstE/7ioLLu8nuMoBpxB0IgP5sOttsiBPJnu:SwG7ionu8n5U/0bhtsiBxu
- TLSH T11BB6A419E253CF6E187713E055655FFCAEEEB14E696A1687D0F9E24332E606C80BF840
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\svhost.exe
- Size 45KB
- SHA256 e4dbdbf7888ea96f3f8aa5c4c7f2bcf6e57d724dd8194fe5f35b673c6ef724ea
- MD5 70d838a7dc5b359c3f938a71fad77db0
- SHA1 66b83eb16481c334719eed406bc58a3c2b910923
- SHA512 9c9a945db5b5e7ff8105bfe74578e6f00b5f707f7c3d8f1f1fb41553a6d0eab29cef026e77877a1ad6435fa7bc369141921442e1485f2b0894c6bbcbd7791034
- SSDEEP 768:bINyGPbIriyUAfETlzjpyXcZ0R55GhrdRMJmcBkmcrH+ihBy3kM:3GjyUAfWNkFR5GTMJhkmM+wBxM
- TLSH T1E0237D929AFC8062F593AAB057B1E587ED3EB6E31970811F0359DC661D937C0EA0072F
- MD5 SHA1 SHA512 SSDEEP TLSH