Analysis
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max time kernel
152s -
max time network
116s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19/10/2022, 14:06
Static task
static1
Behavioral task
behavioral1
Sample
a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe
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Size
300KB
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MD5
a0ca29f766a3730142da3ff0fd29038b
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SHA1
a433016cb2667f7be1dc50855f6f1a77bce01162
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SHA256
a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe
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SHA512
5c017125de048f7c68cf50da4e012f48cac015702063dd1afaf0e267ab325b2c41759faa41d349780b2b0c2041fd1ceff03b623d87c7d400bad46475d87057a0
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SSDEEP
3072:sYIpFhi9A4gfSIKdbRsQOO1OsobSp0xl6EPpc4VpJzNDdlcjBP:sFfhiq4gfSIctsQObG0xlfPpndiVP
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pelum.exe -
Executes dropped EXE 1 IoCs
pid Process 1176 pelum.exe -
Loads dropped DLL 2 IoCs
pid Process 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /j" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /c" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /d" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /t" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /b" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /v" a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /m" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /w" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /x" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /k" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /a" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /p" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /s" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /q" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /f" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /g" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /e" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /l" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /y" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /i" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /o" pelum.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /z" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /u" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /v" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /h" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /r" pelum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\pelum = "C:\\Users\\Admin\\pelum.exe /n" pelum.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 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe 1176 pelum.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 1176 pelum.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1000 wrote to memory of 1176 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 27 PID 1000 wrote to memory of 1176 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 27 PID 1000 wrote to memory of 1176 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 27 PID 1000 wrote to memory of 1176 1000 a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.exe"C:\Users\Admin\AppData\Local\Temp\a97d7408915157e446f5e2f853a62de59b5a087516f685764df56be1547224fe.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:1000 -
C:\Users\Admin\pelum.exe"C:\Users\Admin\pelum.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:1176
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
300KB
MD50d86ff12e27dc590ce4249d005aa0bcb
SHA1a8e2281ff04422dcd8309a56be7a1e387cffdec7
SHA256f7326a4bc406e4ac1ecee3f9ac8a66b3cb9fa642307c29f06036517f1dddfdb4
SHA51220ae2711700e24ffc59f4e3bf661fdcc0a0422b7931547b24b4cc7e19ade836785ad2d924e9d161941edfb5b800a37213954393f639f1a3285336b08776b4fa4
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Filesize
300KB
MD50d86ff12e27dc590ce4249d005aa0bcb
SHA1a8e2281ff04422dcd8309a56be7a1e387cffdec7
SHA256f7326a4bc406e4ac1ecee3f9ac8a66b3cb9fa642307c29f06036517f1dddfdb4
SHA51220ae2711700e24ffc59f4e3bf661fdcc0a0422b7931547b24b4cc7e19ade836785ad2d924e9d161941edfb5b800a37213954393f639f1a3285336b08776b4fa4
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Filesize
300KB
MD50d86ff12e27dc590ce4249d005aa0bcb
SHA1a8e2281ff04422dcd8309a56be7a1e387cffdec7
SHA256f7326a4bc406e4ac1ecee3f9ac8a66b3cb9fa642307c29f06036517f1dddfdb4
SHA51220ae2711700e24ffc59f4e3bf661fdcc0a0422b7931547b24b4cc7e19ade836785ad2d924e9d161941edfb5b800a37213954393f639f1a3285336b08776b4fa4
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Filesize
300KB
MD50d86ff12e27dc590ce4249d005aa0bcb
SHA1a8e2281ff04422dcd8309a56be7a1e387cffdec7
SHA256f7326a4bc406e4ac1ecee3f9ac8a66b3cb9fa642307c29f06036517f1dddfdb4
SHA51220ae2711700e24ffc59f4e3bf661fdcc0a0422b7931547b24b4cc7e19ade836785ad2d924e9d161941edfb5b800a37213954393f639f1a3285336b08776b4fa4