Analysis
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max time kernel
132s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 12:40
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20240508-en
General
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Target
XClient.exe
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Size
59KB
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MD5
d172c0a4ae3e8cef6a0a910bde62e195
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SHA1
51139fc633fe81a66c8ed55081f92ec5256bd0bd
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SHA256
94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7
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SHA512
d82c930a42fd623aeee51007453d201e96110b546f1fb34080fc6d4c1488d71b3828f5f1833d347993444e4d332aa00fbb7b8922fce676d220375470ad0fa467
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SSDEEP
1536:9vv68xQQodoW8YTK6uDkbrfSVxwXSOqQ+k:1vjWQoGJYTK6CkbrfHSOqQ+k
Malware Config
Extracted
xworm
length-desert.gl.at.ply.gg:58023
%AppData%:9
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Install_directory
%AppData%
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install_file
USB.exe
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3620-1-0x0000000000040000-0x0000000000056000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\9 family_xworm -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
XClient.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation XClient.exe -
Drops startup file 2 IoCs
Processes:
XClient.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9.lnk XClient.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9.lnk XClient.exe -
Executes dropped EXE 2 IoCs
Processes:
99pid process 1116 9 3536 9 -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9 = "C:\\Users\\Admin\\AppData\\Roaming\\9" XClient.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
XClient.exe99description pid process Token: SeDebugPrivilege 3620 XClient.exe Token: SeDebugPrivilege 3620 XClient.exe Token: SeDebugPrivilege 1116 9 Token: SeDebugPrivilege 3536 9 -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
XClient.exedescription pid process target process PID 3620 wrote to memory of 776 3620 XClient.exe schtasks.exe PID 3620 wrote to memory of 776 3620 XClient.exe schtasks.exe -
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:3620 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "9" /tr "C:\Users\Admin\AppData\Roaming\9"2⤵
- Creates scheduled task(s)
PID:776
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C:\Users\Admin\AppData\Roaming\9C:\Users\Admin\AppData\Roaming\91⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1116
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C:\Users\Admin\AppData\Roaming\9C:\Users\Admin\AppData\Roaming\91⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3536
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
59KB
MD5d172c0a4ae3e8cef6a0a910bde62e195
SHA151139fc633fe81a66c8ed55081f92ec5256bd0bd
SHA25694b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7
SHA512d82c930a42fd623aeee51007453d201e96110b546f1fb34080fc6d4c1488d71b3828f5f1833d347993444e4d332aa00fbb7b8922fce676d220375470ad0fa467