Analysis
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max time kernel
8s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
09/01/2024, 18:30
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f3aa834ccaf8483aacdceef56b36e114.exe
Resource
win7-20231215-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
f3aa834ccaf8483aacdceef56b36e114.exe
Resource
win10v2004-20231222-en
0 signatures
150 seconds
General
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Target
f3aa834ccaf8483aacdceef56b36e114.exe
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Size
243KB
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MD5
f3aa834ccaf8483aacdceef56b36e114
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SHA1
075a68b840a90f1ad016abd610cd6b222ffad968
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SHA256
49aed16325ad3527dbc5c579ecd75798aefc4298c7d1e75d9d68c1f80f78115e
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SHA512
772c49e0f1f8b1a1a82de99ea7e552c6723dcd225039c2b2302b99a0032dcb06dbbea98251c0fafe84a548a4883e0a56e22af12b1dfc0e32fc7933d4f1421bfb
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SSDEEP
6144:znScTKd/ASzisjWzxCyEBQFyTrfdiaXuQtqc7YKqkYh:1TKCS2sjWC1rfd/Rtqc7HqkYh
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\F3AA83~1.EXE," f3aa834ccaf8483aacdceef56b36e114.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\F3AA83~1.EXE" f3aa834ccaf8483aacdceef56b36e114.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\b483d658 = "\x19Ÿ³JxÖ\x12àßsìÍ*n›³_¸\x13»?Kßó\u008dH£\x06äÔf×Ç\x1edкâýÙ4ì[[\x15ãT\x12ùŠR\bL\x18&º>å\\ÀÀƒucñœ|BÛ¦»ß\x02€‹X»3\x15:ç¨j {Cå‚R•° wÒÅJòº¥50{óÐó’\as—8 [’k\x02ïµ`¨WÃCªÍ{3³\nz\x10\vÊ\x1a{bÂXò‹ª£\u00adeïã{â»ÿã㊢ê\x17ÿ#§£\v#â—Ÿ«[ÐZ\u009d:\x1a}{úÈ0\x02kØ{P…b?\x1aR\u0090Z\vÒø¥ïšpp\x17*ý\x02•Ê`‹â•?\x13s\u0090(ïUeýÒ+:e\x18\x02ÚÓ`ã\x12\x05pʧø»Ú\x13\u009dpcË«'\x12šzˆ\búê\x12Û\x17ÿh«+ z\x17\x17úÈ" f3aa834ccaf8483aacdceef56b36e114.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\F3AA83~1.EXE" f3aa834ccaf8483aacdceef56b36e114.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1940 f3aa834ccaf8483aacdceef56b36e114.exe 1940 f3aa834ccaf8483aacdceef56b36e114.exe 1940 f3aa834ccaf8483aacdceef56b36e114.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeSecurityPrivilege 1940 f3aa834ccaf8483aacdceef56b36e114.exe Token: SeSecurityPrivilege 1940 f3aa834ccaf8483aacdceef56b36e114.exe Token: SeSecurityPrivilege 1940 f3aa834ccaf8483aacdceef56b36e114.exe Token: SeSecurityPrivilege 1940 f3aa834ccaf8483aacdceef56b36e114.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f3aa834ccaf8483aacdceef56b36e114.exe"C:\Users\Admin\AppData\Local\Temp\f3aa834ccaf8483aacdceef56b36e114.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1940