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Analysis
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max time kernel
103s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
25/08/2024, 12:42
Behavioral task
behavioral1
Sample
6e5416a8514789535124d5f245236de0N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
6e5416a8514789535124d5f245236de0N.exe
Resource
win10v2004-20240802-en
General
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Target
6e5416a8514789535124d5f245236de0N.exe
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Size
134KB
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MD5
6e5416a8514789535124d5f245236de0
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SHA1
345075bdb62e4e44e6c0a9c96150e2beac14c5a6
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SHA256
6a0f3730fc5f5588aaea8e2a2b6c878405c90d23d8bdc1683262d09a458509e1
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SHA512
3bf8c5b03db4fecbb0e2f1f1aa0e50159aa3d383e922ef9cacc81b05b50a80d4476649bc7b69058f91e6b02477cefe1546c4b0f39e82264129a8e8587261a9a1
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SSDEEP
1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOz:YfU/WF6QMauSuiWNi9eNOl0007NZIOz
Malware Config
Signatures
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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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 6e5416a8514789535124d5f245236de0N.exe -
Executes dropped EXE 1 IoCs
pid Process 3640 wuauclt.exe -
resource yara_rule behavioral2/memory/5016-0-0x0000000000F70000-0x0000000000F98000-memory.dmp upx behavioral2/files/0x00070000000234c0-3.dat upx behavioral2/memory/3640-5-0x0000000000D70000-0x0000000000D98000-memory.dmp upx behavioral2/memory/5016-6-0x0000000000F70000-0x0000000000F98000-memory.dmp upx behavioral2/memory/3640-7-0x0000000000D70000-0x0000000000D98000-memory.dmp upx behavioral2/memory/5016-8-0x0000000000F70000-0x0000000000F98000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" 6e5416a8514789535124d5f245236de0N.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6e5416a8514789535124d5f245236de0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wuauclt.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5016 wrote to memory of 3640 5016 6e5416a8514789535124d5f245236de0N.exe 84 PID 5016 wrote to memory of 3640 5016 6e5416a8514789535124d5f245236de0N.exe 84 PID 5016 wrote to memory of 3640 5016 6e5416a8514789535124d5f245236de0N.exe 84 PID 5016 wrote to memory of 3884 5016 6e5416a8514789535124d5f245236de0N.exe 96 PID 5016 wrote to memory of 3884 5016 6e5416a8514789535124d5f245236de0N.exe 96 PID 5016 wrote to memory of 3884 5016 6e5416a8514789535124d5f245236de0N.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe"C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\ProgramData\Update\wuauclt.exe"C:\ProgramData\Update\wuauclt.exe" /run2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3640
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C:\windows\SysWOW64\cmd.exe"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe" >> NUL2⤵
- System Location Discovery: System Language Discovery
PID:3884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
134KB
MD546a6f3e48382c11fcf0478e061b16ff5
SHA17726f75235622eefc9887cd01dca40000f5e6b7b
SHA2568fc86de7e3c9f6198ac326cfbd76fef4363e72745a0fc601d23ccdf5ac9483e7
SHA5127320805f13ed5a9b55fb7450e850886a347e887eeadfd51c08660a7482edf100cf56c877be3e46f507debd083b876683589e483b2d709ca9bb47e2899b96918b