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Analysis
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max time kernel
182s -
max time network
198s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 16:42
Static task
static1
Behavioral task
behavioral1
Sample
faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe
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Size
316KB
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MD5
9a972e2e36e8471c6fac36dc330af1d5
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SHA1
2d65c53bdc141e9e4c2af5dc613dedb35115b49f
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SHA256
faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37
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SHA512
6afa9efbc7b4107fe5857b54ea928df6a5553af2962daa20349f9c64843bce8b3a5d87e9519c5d5fa66820672779ae605ac620b40657ffdb2aa4d09b77b82f77
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SSDEEP
3072:vmVs9yxYkQqHd0/sQPO1ouVNDr//GeTb3O/ea6LOsDxeB:3yxYkt90/sQe///3Oj6LOsG
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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" srwec.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe -
Executes dropped EXE 1 IoCs
pid Process 3448 srwec.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /l" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /q" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /s" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /w" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /v" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /g" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /n" srwec.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /d" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /o" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /k" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /h" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /p" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /c" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /r" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /x" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /a" srwec.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /z" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /m" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /u" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /b" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /f" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /e" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /t" faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /j" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /y" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /t" srwec.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\srwec = "C:\\Users\\Admin\\srwec.exe /i" srwec.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 3576 faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe 3576 faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe 3448 srwec.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3576 faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe 3448 srwec.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3576 wrote to memory of 3448 3576 faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe 82 PID 3576 wrote to memory of 3448 3576 faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe 82 PID 3576 wrote to memory of 3448 3576 faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe"C:\Users\Admin\AppData\Local\Temp\faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.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:3576 -
C:\Users\Admin\srwec.exe"C:\Users\Admin\srwec.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:3448
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
316KB
MD5bb8bb851668b70de5b176263124da3d9
SHA12f934cd358a52c3b056ac2dafd61051e46e02325
SHA2563052da43baa8b7cc861eb267b09f49e869eb9f1818a583e93fad15048fa88042
SHA51256b45667dbcee946e7a488e42cbc07142d909ce52bf70d17b586dfbe7240b888bf4d03e18c9b75c878fc14e064b1be2f2c3f9f07aff54405d41a0bd95eb21d4e
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Filesize
316KB
MD5bb8bb851668b70de5b176263124da3d9
SHA12f934cd358a52c3b056ac2dafd61051e46e02325
SHA2563052da43baa8b7cc861eb267b09f49e869eb9f1818a583e93fad15048fa88042
SHA51256b45667dbcee946e7a488e42cbc07142d909ce52bf70d17b586dfbe7240b888bf4d03e18c9b75c878fc14e064b1be2f2c3f9f07aff54405d41a0bd95eb21d4e