Analysis
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max time kernel
115s -
max time network
117s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-12-2024 22:17
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win11-20241007-en
General
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Target
Client-built.exe
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Size
78KB
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MD5
fb552643b39d63cd82ad0120420d8867
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SHA1
e3f5a60e2ac5cd2a9f7877f7aeecd46c8bfc0090
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SHA256
ee1c182db93ee31196e00430e72d13157cb87f8039f45811fe939990f80a64c2
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SHA512
217c67bda3b5a6e032a46167dd4c6937673023dc046982f81ba4369275e80f65b347fb467a91e0ae6d96d4ef083a599d98700c474cdc2bf3c325636e43f8c460
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SSDEEP
1536:52WjO8XeEXFh5P7v88wbjNrfxCXhRoKV6+V+8PIC:5Zv5PDwbjNrmAE+wIC
Malware Config
Extracted
discordrat
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discord_token
MTMyMDgxOTMyMjE3NTg4NTMxMg.G2w9pl.M7X8vOnvAJ7kNogvMSqx8HdwxiyXxMyMuXon2w
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server_id
1320816438822441184
Signatures
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Discord RAT
A RAT written in C# using Discord as a C2.
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Discordrat family
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Modifies registry class 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000_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-1-5-21-2499603254-3415597248-1508446358-1000_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-1-5-21-2499603254-3415597248-1508446358-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" BackgroundTransferHost.exe Key created \REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000_Classes\Local Settings\MuiCache BackgroundTransferHost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4908 Client-built.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4908
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.131⤵
- Modifies registry class
PID:764
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc1⤵PID:1308
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\9052c873-f17b-419e-a730-c3366586436c.down_data
Filesize555KB
MD55683c0028832cae4ef93ca39c8ac5029
SHA1248755e4e1db552e0b6f8651b04ca6d1b31a86fb
SHA256855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e
SHA512aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3