Analysis
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max time kernel
151s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 22:29
Static task
static1
Behavioral task
behavioral1
Sample
f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe
Resource
win10v2004-20220812-en
General
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Target
f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe
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Size
107KB
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MD5
1524080f59294015d72812fd5459aa60
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SHA1
e427bf721e156e4f5aae9827875685944aa6bcff
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SHA256
f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836
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SHA512
ab24ffea29457b0d5bb05ac7a3db84a7bd1d3839dd968499f2075c3516c019ee8187fb6cc80a0ce4a6a49aa5fbb0864bfece4d8778e353e1d9eda0b7e7eabc2a
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SSDEEP
1536:OzfFficGC29AzRg1MbKSIV+JT/B3OkAO16/3gkLBbocGkM5hFg0z/tEKxeaEmxAJ:OLOE9JbOV2T/B3TktCjevjabxVba9PA4
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pujuh.exe -
Executes dropped EXE 2 IoCs
pid Process 4844 pujuh.exe 992 pujuh.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /b" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /j" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /w" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /i" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /k" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /s" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /v" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /m" pujuh.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /z" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /t" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /y" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /u" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /g" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /d" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /n" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /f" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /p" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /r" pujuh.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /e" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /c" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /x" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /o" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /o" f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /a" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /l" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /q" pujuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pujuh = "C:\\Users\\Admin\\pujuh.exe /h" pujuh.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum pujuh.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 pujuh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf pujuh.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4888 set thread context of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4844 set thread context of 992 4844 pujuh.exe 84 -
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 4540 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 4540 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe 992 pujuh.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 4540 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 4844 pujuh.exe 992 pujuh.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4888 wrote to memory of 4540 4888 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 82 PID 4540 wrote to memory of 4844 4540 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 83 PID 4540 wrote to memory of 4844 4540 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 83 PID 4540 wrote to memory of 4844 4540 f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe 83 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84 PID 4844 wrote to memory of 992 4844 pujuh.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe"C:\Users\Admin\AppData\Local\Temp\f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4888 -
C:\Users\Admin\AppData\Local\Temp\f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836.exe712⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4540 -
C:\Users\Admin\pujuh.exe"C:\Users\Admin\pujuh.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4844 -
C:\Users\Admin\pujuh.exe714⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:992
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
107KB
MD51524080f59294015d72812fd5459aa60
SHA1e427bf721e156e4f5aae9827875685944aa6bcff
SHA256f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836
SHA512ab24ffea29457b0d5bb05ac7a3db84a7bd1d3839dd968499f2075c3516c019ee8187fb6cc80a0ce4a6a49aa5fbb0864bfece4d8778e353e1d9eda0b7e7eabc2a
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Filesize
107KB
MD51524080f59294015d72812fd5459aa60
SHA1e427bf721e156e4f5aae9827875685944aa6bcff
SHA256f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836
SHA512ab24ffea29457b0d5bb05ac7a3db84a7bd1d3839dd968499f2075c3516c019ee8187fb6cc80a0ce4a6a49aa5fbb0864bfece4d8778e353e1d9eda0b7e7eabc2a
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Filesize
107KB
MD51524080f59294015d72812fd5459aa60
SHA1e427bf721e156e4f5aae9827875685944aa6bcff
SHA256f599b98ad811fb89b939164dea9cd58c9797bcbdcf772893ac1b905f5c370836
SHA512ab24ffea29457b0d5bb05ac7a3db84a7bd1d3839dd968499f2075c3516c019ee8187fb6cc80a0ce4a6a49aa5fbb0864bfece4d8778e353e1d9eda0b7e7eabc2a