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Analysis
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max time kernel
156s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 15:17
Static task
static1
Behavioral task
behavioral1
Sample
5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe
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Size
184KB
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MD5
a05c276308be85cf83c9203e1f913700
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SHA1
d877f37b3b626679c652cef69c5e89efbef303c6
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SHA256
5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8
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SHA512
5daab2daf74393ded5a9a4bd6d356c45b97f63eeca7b85f8c08c23b275a36cfed66a1ab3b78f6af0307f7f3fb7b1042f1d8c58b74d2010d3d70c34d04dc17cb9
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SSDEEP
3072:6DGXZ4xu7o897rl2Y4HpRSQ8nsl8Koay6VUSB:PGulF8HpRpAKoahVUs
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" grdaib.exe -
Executes dropped EXE 1 IoCs
pid Process 3864 grdaib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /t" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /l" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /v" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /r" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /y" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /d" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /m" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /p" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /j" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /f" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /g" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /c" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /b" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /o" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /w" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /c" 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /a" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /i" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /u" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /h" grdaib.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /k" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /z" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /n" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /s" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /q" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /x" grdaib.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\grdaib = "C:\\Users\\Admin\\grdaib.exe /e" grdaib.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 4436 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe 4436 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe 3864 grdaib.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4436 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe 3864 grdaib.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4436 wrote to memory of 3864 4436 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe 87 PID 4436 wrote to memory of 3864 4436 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe 87 PID 4436 wrote to memory of 3864 4436 5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe"C:\Users\Admin\AppData\Local\Temp\5b3030a61534330ecefb6b38f246d829af7223faac6e59b19421951a3b38f0b8.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4436 -
C:\Users\Admin\grdaib.exe"C:\Users\Admin\grdaib.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:3864
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
184KB
MD57b5ad06a8c3f3d7a19a929cfa046c359
SHA16f7f87b8f5dc8ac295e015e83df947f08ad1f62f
SHA256d9813d54caf81603fec45739820ef4adfa024e9ee1ac41e0f3bfa077a28cbf16
SHA5122442eff305444c8b5d68ffa8c620933d96412291adb023b0d083e9184fb4c0e61ca751f81bdfac3442b9758b084607dc8caca3f2ac5e373603aa32d09ec63f80
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Filesize
184KB
MD57b5ad06a8c3f3d7a19a929cfa046c359
SHA16f7f87b8f5dc8ac295e015e83df947f08ad1f62f
SHA256d9813d54caf81603fec45739820ef4adfa024e9ee1ac41e0f3bfa077a28cbf16
SHA5122442eff305444c8b5d68ffa8c620933d96412291adb023b0d083e9184fb4c0e61ca751f81bdfac3442b9758b084607dc8caca3f2ac5e373603aa32d09ec63f80