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Analysis
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max time kernel
139s -
max time network
169s -
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, 02:09
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
bf8fadd71108774696a607b8abe4b8f6.exe
Resource
win7-20240220-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
bf8fadd71108774696a607b8abe4b8f6.exe
Resource
win10v2004-20240226-en
5 signatures
150 seconds
General
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Target
bf8fadd71108774696a607b8abe4b8f6.exe
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Size
92KB
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MD5
bf8fadd71108774696a607b8abe4b8f6
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SHA1
9c44edc836fe0b55fda41b00fdc2a3afca9d0507
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SHA256
3cd3c08e8ee1d8b5f36e9095741cfe7a9ee9bf50292f57216565af69407ea017
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SHA512
0803074bc204e1e14e89aa9c5352c85304381281728d775279b71326c7c35c2552f5411906fefcfcfd8a93a48eb0f00172277684221f1ee61528fd771f7bca34
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SSDEEP
1536:7nbF3qiEnNLFxdAvmo+XoqYFTjPcUZHB3rllSeU:Lp3GNLF5o9RjkUlIeU
Score
8/10
Malware Config
Signatures
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Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" bf8fadd71108774696a607b8abe4b8f6.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Internet Explorer\Mui\bf8fadd71108774696a607b8abe4b8f6.exe bf8fadd71108774696a607b8abe4b8f6.exe File opened for modification C:\Program Files\Internet Explorer\Mui\bf8fadd71108774696a607b8abe4b8f6.exe bf8fadd71108774696a607b8abe4b8f6.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\MAIN bf8fadd71108774696a607b8abe4b8f6.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\Main bf8fadd71108774696a607b8abe4b8f6.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\default_page_url = "http://www.4533.cn" bf8fadd71108774696a607b8abe4b8f6.exe -
Modifies Internet Explorer start page 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.4533.cn" bf8fadd71108774696a607b8abe4b8f6.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4728 bf8fadd71108774696a607b8abe4b8f6.exe 4728 bf8fadd71108774696a607b8abe4b8f6.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bf8fadd71108774696a607b8abe4b8f6.exe"C:\Users\Admin\AppData\Local\Temp\bf8fadd71108774696a607b8abe4b8f6.exe"1⤵
- Disables RegEdit via registry modification
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious use of SetWindowsHookEx
PID:4728
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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=4076 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵PID:552