Analysis
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max time kernel
283s -
max time network
279s -
platform
windows11-21h2_x64 -
resource
win11-20250313-en -
resource tags
arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/03/2025, 22:25
Behavioral task
behavioral1
Sample
Release.zip
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Release.zip
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral3
Sample
Release.zip
Resource
win11-20250313-en
General
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Target
Release.zip
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Size
6.4MB
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MD5
89661a9ff6de529497fec56a112bf75e
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SHA1
2dd31a19489f4d7c562b647f69117e31b894b5c3
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SHA256
e7b275d70655db9cb43fa606bbe2e4f22478ca4962bbf9f299d66eda567d63cd
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SHA512
33c765bf85fbec0e58924ece948b80a7d73b7577557eaac8865e481c61ad6b71f8b5b846026103239b3bd21f438ff0d7c1430a51a4a149f16a215faad6dab68f
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SSDEEP
196608:SYNI1S7C6S230UwVLW83FUSA7WQZzwM3/C2cM7m2:rNIs7CDvB1USA7WS/vcx2
Malware Config
Signatures
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System Location Discovery: System Language Discovery 1 TTPs 1 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 xeno rat server.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1136229799-3442283115-138161576-1000_Classes\Local Settings\MuiCache BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1136229799-3442283115-138161576-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1136229799-3442283115-138161576-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1136229799-3442283115-138161576-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" BackgroundTransferHost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4980 xeno rat server.exe
Processes
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C:\Windows\Explorer.exeC:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Release.zip1⤵PID:4240
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.131⤵
- Modifies registry class
PID:5012
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4180
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C:\Users\Admin\Desktop\Release\xeno rat server.exe"C:\Users\Admin\Desktop\Release\xeno rat server.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
PID:4980
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\a7a1a124-22a2-4ed7-b2e8-45b377ac6a50.down_data
Filesize555KB
MD55683c0028832cae4ef93ca39c8ac5029
SHA1248755e4e1db552e0b6f8651b04ca6d1b31a86fb
SHA256855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e
SHA512aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3