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Analysis
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max time kernel
420s -
max time network
527s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20250217-en -
resource tags
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submitted
06/03/2025, 15:02
General
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Target
Sigma.exe
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Size
41KB
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MD5
9aff73f27f7afc4251dfe1ac8fe52d7d
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SHA1
deef8ffa68978c9c8b398e5f7c4c026faf63fa5d
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SHA256
546b7e985765d0a21e915869dad863133255bb081e8de5407f7104cd5bdcb77b
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SHA512
ee2f3c18744b749dc68003f7e81c800c288060c9e56f74e61c706b3c61c17198b42401da49e524e4e77ae8a5f5847adf387034f12898a9fdeabddfc465b7a3a9
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SSDEEP
768:yscaIiIEI/gB1wtduZ0e6WTj8KZKfgm3Eh3/:hc1yYgBEe6WToF7EJ/
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/1347218786394050560/25E1MnN6tM_9Plb5-he1mualyMBpKwbwpRNDgFeexEvlMFJngDEgVT6C2DE0Vpotbp-Y
Signatures
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Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
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Mercurialgrabber family
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Sigma.exe"C:\Users\Admin\AppData\Local\Temp\Sigma.exe"1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
756KB
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Filesize
64KB
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Filesize
756KB
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Filesize
756KB
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Filesize
756KB