Analysis
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max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/01/2024, 10:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
772d1e30be68517c67a30704eccd9e0f.exe
Resource
win7-20231215-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
772d1e30be68517c67a30704eccd9e0f.exe
Resource
win10v2004-20231222-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
772d1e30be68517c67a30704eccd9e0f.exe
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Size
240KB
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MD5
772d1e30be68517c67a30704eccd9e0f
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SHA1
d5ed02adc23f9e1601d98089ec12002eef64b5bb
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SHA256
40a0bf6f61cd510fc102dede2993c05d94b701e6e53ae31d0906acfb851fe236
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SHA512
eb0f1ccf0ce4353a38e516e6cc0e4f5b20b37ad94e800d43e247a1f9a8d1d199a13d0a23dce0d6a8fe5adc953632c57fbf8bf0e4e4270842c4e715987fa82c85
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SSDEEP
6144:tPe3dwqsNTNEXGlQR58EqxF6snji81RUinKq3aEESliDo:tUdQKjeaEEp
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 772d1e30be68517c67a30704eccd9e0f.exe Set value (int) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" beyur.exe -
Executes dropped EXE 1 IoCs
pid Process 2324 beyur.exe -
Loads dropped DLL 2 IoCs
pid Process 1248 772d1e30be68517c67a30704eccd9e0f.exe 1248 772d1e30be68517c67a30704eccd9e0f.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /s" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /t" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /c" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /d" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /g" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /p" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /a" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /n" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /z" 772d1e30be68517c67a30704eccd9e0f.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /b" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /x" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /u" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /f" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /h" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /m" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /o" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /q" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /w" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /z" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /v" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /i" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /y" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /r" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /e" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /l" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /k" beyur.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\beyur = "C:\\Users\\Admin\\beyur.exe /j" beyur.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1248 772d1e30be68517c67a30704eccd9e0f.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe 2324 beyur.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1248 772d1e30be68517c67a30704eccd9e0f.exe 2324 beyur.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1248 wrote to memory of 2324 1248 772d1e30be68517c67a30704eccd9e0f.exe 28 PID 1248 wrote to memory of 2324 1248 772d1e30be68517c67a30704eccd9e0f.exe 28 PID 1248 wrote to memory of 2324 1248 772d1e30be68517c67a30704eccd9e0f.exe 28 PID 1248 wrote to memory of 2324 1248 772d1e30be68517c67a30704eccd9e0f.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\772d1e30be68517c67a30704eccd9e0f.exe"C:\Users\Admin\AppData\Local\Temp\772d1e30be68517c67a30704eccd9e0f.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Users\Admin\beyur.exe"C:\Users\Admin\beyur.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2324
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
240KB
MD54ad4f6c9896b1bae4e3b0ec31a64c695
SHA10cc55876126eadd39521875e0379c5e0a895e095
SHA2563bc5b9a9636eca02ea6c18aeba64002b1a7cb424be1554eddc09efc50936dc7b
SHA512c1ed6911148807d46ccf88b23d4cb8471d3dba13c5d76c87bb61e256ca3ca6b3a5a497f124ef940e9fc87132ecb38168be032421fff08838333d59954de7df06