Analysis
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max time kernel
60s -
max time network
63s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
17-04-2023 12:27
Behavioral task
behavioral1
Sample
stub.exe
Resource
win10v2004-20230220-en
6 signatures
60 seconds
General
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Target
stub.exe
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Size
3.8MB
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MD5
d5cad087973fab0104f92810bbf16871
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SHA1
ced93e48beea62c6e444cdb8ae5ea2fbed72085d
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SHA256
0a3d2686f9f3df3a943578869afa5b87e249dbcb41a1752626ba8948445fe1e9
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SHA512
1497f30f44a9adfe1496ccc1dc5befe4736bf32e0862102b5a39ca6caadaa1f35023bc8d33ea88cbafd6962e07a92faa49d3a4c0e9e0e192c7f5829ca63ddd8b
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SSDEEP
98304:d77Pmq33rE/JDLPWZADUGer7B6iY74M/JmlwXVZ4FB:5+R/eZADUXR
Score
10/10
Malware Config
Extracted
Family
bitrat
Version
1.38
C2
soon-lp.at.ply.gg:17209
Attributes
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communication_password
33d47f3d76b1b6a91406c01ef0ce5164
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install_dir
BIRAT
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install_file
svchost
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tor_process
Tls_Connect
Signatures
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Adds Run key to start application 2 TTPs 4 IoCs
Processes:
stub.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\BIRAT\\svchost" stub.exe Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\BIRAT\\svchost\ue000" stub.exe Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\BIRAT\\svchost준" stub.exe Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\BIRAT\\svchost䀀" stub.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
Processes:
stub.exepid process 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe -
Suspicious behavior: RenamesItself 12 IoCs
Processes:
stub.exepid process 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe 2372 stub.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
stub.exedescription pid process Token: SeShutdownPrivilege 2372 stub.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
stub.exepid process 2372 stub.exe 2372 stub.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\stub.exe"C:\Users\Admin\AppData\Local\Temp\stub.exe"1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx