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Analysis
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max time kernel
53s -
max time network
55s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27/09/2024, 19:19
Static task
static1
Behavioral task
behavioral1
Sample
af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
Resource
win10v2004-20240802-en
General
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Target
af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
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Size
278KB
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MD5
82b23194fa2793c270c8297dfe95f27c
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SHA1
056022b0ca3904ef238287d359dad6f5bb76edd8
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SHA256
af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2
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SHA512
b7c4b84cdfdfd651c6c4e20229a84c379094dbd461c7bf0d6d5ccacec0f7ef6051cc9263b290ba7db59ff566a5d9699fe14242e047abc72c81c749205a9e536e
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SSDEEP
6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fp:boSeGUA5YZazpXUmZhZ6R
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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe -
Executes dropped EXE 1 IoCs
pid Process 1924 a1punf5t2of.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe -
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 2 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 af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1328 wrote to memory of 1924 1328 af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe 91 PID 1328 wrote to memory of 1924 1328 af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe 91 PID 1328 wrote to memory of 1924 1328 af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe 91 PID 1924 wrote to memory of 904 1924 a1punf5t2of.exe 97 PID 1924 wrote to memory of 904 1924 a1punf5t2of.exe 97 PID 1924 wrote to memory of 904 1924 a1punf5t2of.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe"C:\Users\Admin\AppData\Local\Temp\af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1328 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"3⤵PID:904
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4252,i,2727319350781907497,7925939240893079607,262144 --variations-seed-version --mojo-platform-channel-handle=3952 /prefetch:81⤵PID:616
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
278KB
MD588b6813654b4a3cd0d8bb32784cbbd72
SHA141eb501ca5bcc41f055d6c09bcdf78e20627eb40
SHA256daa5c5edbd61f346d74a73e4a11e28b71764515296fd2094c9889de810144a72
SHA5124b39deb7e56c70dcd38c5a4a5be1574d0c74a442665cd5b55be7163d30b21f4a076be90f7da5783f7ad4bc792140473e4715d649354129a58d9694e317e373fc