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Analysis
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max time kernel
188s -
max time network
113s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02/10/2022, 00:46
Static task
static1
Behavioral task
behavioral1
Sample
d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe
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Size
220KB
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MD5
572934bbe281f291a473824c691546db
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SHA1
17c21ce323d0e5531629e6f9df0ef308b48d5a61
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SHA256
d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43
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SHA512
833840cca27c906483fa58b7b9d26f05a20ead960e626e0af5fd38d4902069b55855eca42031ae3ff4737be9f0ab3e35e2538a33a9432267126289dbe9ac25a0
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SSDEEP
3072:SqOufkr8YUL4qx9RIHgil3UuhSa3U3dD8d6Oy+MIrnj3J+NBy:jOOko15x9SHVeOj0k
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" necaj.exe -
Executes dropped EXE 1 IoCs
pid Process 1220 necaj.exe -
Loads dropped DLL 2 IoCs
pid Process 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /w" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /g" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /p" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /h" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /d" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /c" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /a" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /k" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /q" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /v" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /u" d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /y" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /n" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /e" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /j" necaj.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /l" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /i" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /t" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /x" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /z" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /s" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /m" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /b" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /u" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /o" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /r" necaj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\necaj = "C:\\Users\\Admin\\necaj.exe /f" necaj.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe 1220 necaj.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 1220 necaj.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1320 wrote to memory of 1220 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 27 PID 1320 wrote to memory of 1220 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 27 PID 1320 wrote to memory of 1220 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 27 PID 1320 wrote to memory of 1220 1320 d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.exe"C:\Users\Admin\AppData\Local\Temp\d7b6ebd55e2cff569dd8cda9c4da9a4f8a4b8e61fc771b93467900ce58284c43.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:1320 -
C:\Users\Admin\necaj.exe"C:\Users\Admin\necaj.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:1220
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
220KB
MD59899bd66dea02bba41adf0732f870c68
SHA1cba11d442d0dbb75dbcc4929fd7d656421ec0086
SHA2566d6cc6eab216352a88c9290c36daad12fe46da1c276d8a0e3441ea76edb7c892
SHA512013df7fba596e95a3df8f8ea52545f37c3b18292f2b5371e3c99abb7aa7041af9e4f1349a4a1153899ee8700775521eac8914cdeb0ece8bb8cb81b7fe6b9989a
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Filesize
220KB
MD59899bd66dea02bba41adf0732f870c68
SHA1cba11d442d0dbb75dbcc4929fd7d656421ec0086
SHA2566d6cc6eab216352a88c9290c36daad12fe46da1c276d8a0e3441ea76edb7c892
SHA512013df7fba596e95a3df8f8ea52545f37c3b18292f2b5371e3c99abb7aa7041af9e4f1349a4a1153899ee8700775521eac8914cdeb0ece8bb8cb81b7fe6b9989a
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Filesize
220KB
MD59899bd66dea02bba41adf0732f870c68
SHA1cba11d442d0dbb75dbcc4929fd7d656421ec0086
SHA2566d6cc6eab216352a88c9290c36daad12fe46da1c276d8a0e3441ea76edb7c892
SHA512013df7fba596e95a3df8f8ea52545f37c3b18292f2b5371e3c99abb7aa7041af9e4f1349a4a1153899ee8700775521eac8914cdeb0ece8bb8cb81b7fe6b9989a
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Filesize
220KB
MD59899bd66dea02bba41adf0732f870c68
SHA1cba11d442d0dbb75dbcc4929fd7d656421ec0086
SHA2566d6cc6eab216352a88c9290c36daad12fe46da1c276d8a0e3441ea76edb7c892
SHA512013df7fba596e95a3df8f8ea52545f37c3b18292f2b5371e3c99abb7aa7041af9e4f1349a4a1153899ee8700775521eac8914cdeb0ece8bb8cb81b7fe6b9989a