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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
28/02/2025, 18:13
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20250217-en
General
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Target
XClient.exe
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Size
69KB
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MD5
5f73a7d813ca1b0287eee8e34c8fb97a
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SHA1
2a209a47e6ca2106397aac89674344761f507842
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SHA256
fc7e51dc0cdfe45ed4507903bbb9d8442d58dff88ceec8f89ffb354646a2b0c2
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SHA512
9b86f653e162bc632f6288fee4072aea6c3299e744db9f4707fa0f5c51ddb3c7e4aae21c7cf3c9d480ad375c51e4de15de1161a69459a74133f7d1f005796143
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SSDEEP
1536:etpR0NcUa78F6TflB1Um7UG2RbqV9R0nXBHykd19jO7XHb:etn0b6TfysUpRbOsRbvjOLHb
Malware Config
Extracted
xworm
6.tcp.ngrok.io:17720:17720
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Install_directory
%AppData%
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install_file
XClient.exe
Signatures
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Detect Xworm Payload 2 IoCs
resource yara_rule behavioral2/memory/2884-1-0x0000000000AB0000-0x0000000000AC8000-memory.dmp family_xworm behavioral2/files/0x000500000001e6c0-8.dat family_xworm -
Xworm family
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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-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation XClient.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk XClient.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk XClient.exe -
Executes dropped EXE 2 IoCs
pid Process 4344 XClient.exe 3908 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.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 2028 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2884 XClient.exe Token: SeDebugPrivilege 4344 XClient.exe Token: SeDebugPrivilege 3908 XClient.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2884 wrote to memory of 2028 2884 XClient.exe 93 PID 2884 wrote to memory of 2028 2884 XClient.exe 93 -
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.
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:2884 -
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"2⤵
- Scheduled Task/Job: Scheduled Task
PID:2028
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4344
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3908
Network
MITRE ATT&CK Enterprise v15
Persistence
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
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
69KB
MD55f73a7d813ca1b0287eee8e34c8fb97a
SHA12a209a47e6ca2106397aac89674344761f507842
SHA256fc7e51dc0cdfe45ed4507903bbb9d8442d58dff88ceec8f89ffb354646a2b0c2
SHA5129b86f653e162bc632f6288fee4072aea6c3299e744db9f4707fa0f5c51ddb3c7e4aae21c7cf3c9d480ad375c51e4de15de1161a69459a74133f7d1f005796143