Analysis
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max time kernel
146s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
05/03/2024, 05:52
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b3f342c6035383ee95794105ebf46fd8.exe
Resource
win7-20240221-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b3f342c6035383ee95794105ebf46fd8.exe
Resource
win10v2004-20240226-en
9 signatures
150 seconds
General
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Target
b3f342c6035383ee95794105ebf46fd8.exe
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Size
330KB
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MD5
b3f342c6035383ee95794105ebf46fd8
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SHA1
dc4c43a34838415231aeb1b4c8487cd014bfb9d4
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SHA256
04f0962f590e6d76c46a83447a9d59cbf35fa8503d6891701ffdc9e4be48ee06
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SHA512
ff211681e15b53ae2baba0117906a9df8101658dc3b64031a56eb4bd671f4186059f6801224ef2cd3481cfba9ad808ebabb459a6e6f1dec1112674aafd7eab1e
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SSDEEP
6144:deuHeBitK3PsspuxCKpSqvHr9dXi6k6A5gtdx4ydTZ2UHzCqbI:kieBitAuxLlxBih5kX9CqbI
Score
7/10
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2692-4-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-7-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-8-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-9-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-10-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-11-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-12-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-20-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-21-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-23-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-26-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-29-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-30-0x0000000000400000-0x000000000047C000-memory.dmp upx behavioral1/memory/2692-36-0x0000000000400000-0x000000000047C000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\SSS = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b3f342c6035383ee95794105ebf46fd8.exe /cs:1 " b3f342c6035383ee95794105ebf46fd8.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\SSS = "\"C:\\ProgramData\\160b60\\SS160_2330.exe\" /s" b3f342c6035383ee95794105ebf46fd8.exe -
Checks for any installed AV software in registry 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Eset\Nod\ b3f342c6035383ee95794105ebf46fd8.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1224 set thread context of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Kills process with taskkill 1 IoCs
pid Process 2440 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2440 taskkill.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1224 wrote to memory of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 PID 1224 wrote to memory of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 PID 1224 wrote to memory of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 PID 1224 wrote to memory of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 PID 1224 wrote to memory of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 PID 1224 wrote to memory of 2692 1224 b3f342c6035383ee95794105ebf46fd8.exe 28 PID 2692 wrote to memory of 2440 2692 b3f342c6035383ee95794105ebf46fd8.exe 29 PID 2692 wrote to memory of 2440 2692 b3f342c6035383ee95794105ebf46fd8.exe 29 PID 2692 wrote to memory of 2440 2692 b3f342c6035383ee95794105ebf46fd8.exe 29 PID 2692 wrote to memory of 2440 2692 b3f342c6035383ee95794105ebf46fd8.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe"C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe"C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe" "C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe"2⤵
- Adds Run key to start application
- Checks for any installed AV software in registry
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\SysWOW64\taskkill.exetaskkill.exe /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2440
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