Analysis
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max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11/03/2024, 00:32
Behavioral task
behavioral1
Sample
c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe
Resource
win7-20240221-en
General
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Target
c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe
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Size
201KB
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MD5
3d20deb54ee3306d88850606dedb6737
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SHA1
44a0359d73aaee8be34498397595ec796e7f83b3
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SHA256
c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe
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SHA512
58f6f6c14c17db51c436c1c2b7b166a5a91fa07cf184358a4a643de46557fd5e4c88d5c00ac775ca76f5d3ba6f3a1c40a6c278e4fedb723de3326cff2d0fda5a
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SSDEEP
3072:llfTVlvfdEDRmyc+XA60Kj4omjuVZ6rNp0Vh:lpTV9rZllomjuCNp0f
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe -
Executes dropped EXE 1 IoCs
pid Process 2392 biudfw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4432 wrote to memory of 2392 4432 c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe 101 PID 4432 wrote to memory of 2392 4432 c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe 101 PID 4432 wrote to memory of 2392 4432 c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe 101 PID 4432 wrote to memory of 4584 4432 c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe 102 PID 4432 wrote to memory of 4584 4432 c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe 102 PID 4432 wrote to memory of 4584 4432 c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe"C:\Users\Admin\AppData\Local\Temp\c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Users\Admin\AppData\Local\Temp\biudfw.exe"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"2⤵
- Executes dropped EXE
PID:2392
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "2⤵PID:4584
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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 --no-appcompat-clear --mojo-platform-channel-handle=4004 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:81⤵PID:4432
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
201KB
MD510cf69dabe7e7d95f1c29100183be0ed
SHA159e3bb0b907688dd135e5f695d1dbbdbf41d4006
SHA256d8c697246088c74958f41d29d7d1d27663f312c975c93b1799bb3fa052cc06d1
SHA512ea0c1fa9e4f4eca26bc83d50e3f33693e16f53b1a1f15eecac29847f68f5949e991c8705609550c14f1f0e4d6c72a66078013fdf4fc7448534d6cff7fecf0ad4
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Filesize
512B
MD5fc7c2ef888930c9e3d5e328202990a11
SHA1336cbc6a838acad79206b98e9eb2414736e718ed
SHA25679115937973fc5e46c104e0eff35fe65ece75db6224847bcd152057b496ed517
SHA512a426d6b66e7576aa639692147f14d8c6c8b580b16ac2b17d2c8e68e01f423d11205fb806074b26273f1ca267f85bc6edd91f932e7d5deeb95811cd20622690e7
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Filesize
338B
MD5f64070642a1a720d7a17e819dc4385e2
SHA1f95d5d6ab332a0eacf2254bf0abcf08a924c34bf
SHA256e28fcc2140ea98d7549421823c158593a8a668bc272bf5ad0ee2a4cbfc4ad1c6
SHA512ca3ba9b70ba45567ad3d86cd176fdd1aaf4ef0c9ccb4df2182b9d3ee7dcdeffd08f6076edc426958b1e243791708fea93cf0284eaed1feeb309ce16a29fc43fa