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Analysis
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max time kernel
407s -
max time network
474s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 19:10
Static task
static1
Behavioral task
behavioral1
Sample
c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe
Resource
win10v2004-20221111-en
General
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Target
c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe
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Size
92KB
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MD5
33e3bbcf9b34c8cecb5279eec1d644e0
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SHA1
db62be5aeaf66691da1627a419d935ab58c67940
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SHA256
c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539
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SHA512
eb1faf6aca854b8747e433fe756a1d0aef1a66e2d6a1a18ab8ee5da68fc30556087a065cf732120d09a03dba2fb9bec24c95215115592cb93eee336861801b1b
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SSDEEP
1536:3YSSR+XyVoizrqkhSJ7p7bi/KveY4x5EPQJUnRSuvy0ORU5kgB:pSVaQrqkI97biTxSPMUnRt67Ckc
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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe Set value (int) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" xoirioy.exe -
Executes dropped EXE 2 IoCs
pid Process 2616 xoirioy.exe 1224 xoirioy.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xoirioy = "C:\\Users\\Admin\\xoirioy.exe /l" c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ xoirioy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xoirioy = "C:\\Users\\Admin\\xoirioy.exe /d" xoirioy.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.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 xoirioy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum xoirioy.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 xoirioy.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1336 set thread context of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 2616 set thread context of 1224 2616 xoirioy.exe 81 -
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 4 IoCs
pid Process 936 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 936 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 1224 xoirioy.exe 1224 xoirioy.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 936 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 2616 xoirioy.exe 1224 xoirioy.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 1336 wrote to memory of 936 1336 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 78 PID 936 wrote to memory of 2616 936 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 80 PID 936 wrote to memory of 2616 936 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 80 PID 936 wrote to memory of 2616 936 c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe 80 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81 PID 2616 wrote to memory of 1224 2616 xoirioy.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe"C:\Users\Admin\AppData\Local\Temp\c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1336 -
C:\Users\Admin\AppData\Local\Temp\c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539.exe0712⤵
- 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:936 -
C:\Users\Admin\xoirioy.exe"C:\Users\Admin\xoirioy.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Users\Admin\xoirioy.exe0714⤵
- 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:1224
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
92KB
MD533e3bbcf9b34c8cecb5279eec1d644e0
SHA1db62be5aeaf66691da1627a419d935ab58c67940
SHA256c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539
SHA512eb1faf6aca854b8747e433fe756a1d0aef1a66e2d6a1a18ab8ee5da68fc30556087a065cf732120d09a03dba2fb9bec24c95215115592cb93eee336861801b1b
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Filesize
92KB
MD533e3bbcf9b34c8cecb5279eec1d644e0
SHA1db62be5aeaf66691da1627a419d935ab58c67940
SHA256c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539
SHA512eb1faf6aca854b8747e433fe756a1d0aef1a66e2d6a1a18ab8ee5da68fc30556087a065cf732120d09a03dba2fb9bec24c95215115592cb93eee336861801b1b
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Filesize
92KB
MD533e3bbcf9b34c8cecb5279eec1d644e0
SHA1db62be5aeaf66691da1627a419d935ab58c67940
SHA256c77284987a90f51382df387f35b0780ff16b7e71230926a91caea9b5e955f539
SHA512eb1faf6aca854b8747e433fe756a1d0aef1a66e2d6a1a18ab8ee5da68fc30556087a065cf732120d09a03dba2fb9bec24c95215115592cb93eee336861801b1b