General
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Target
RBF.exe
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Size
41KB
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Sample
240901-sc9f9stfrr
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MD5
09d12c328c88bfdfef9dcc0927dca671
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SHA1
4f61a36bc05dbd9229b56db5ead4ea3d37e4308a
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SHA256
64e772d1da472d9da1dde4d9b070c1d9acf98d9819ec04058a0161f020022e49
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SHA512
4774119f1eb6f3f712fc29f7c7cceb31a67c62c01a6b7f09ccf17a85a4d78b3fed4f3a9532c353490f9058aae5db58d305a92a65a8e8039e7c123f48e73d1d51
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SSDEEP
768:escGoAxWdPN+wauZLePWTjZKZKfgm3Ehpe:tcVdPN9ePWTVF7Ebe
Behavioral task
behavioral1
Sample
RBF.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
RBF.exe
Resource
win10v2004-20240802-en
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/975244014364270683/FZnH_sfT1E7Axl_7pfCffp86xK6BWVM_UXXb74CN2p4kpHxH_6kuQsuzlglxNPVfnIm6
Targets
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Target
RBF.exe
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Size
41KB
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MD5
09d12c328c88bfdfef9dcc0927dca671
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SHA1
4f61a36bc05dbd9229b56db5ead4ea3d37e4308a
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SHA256
64e772d1da472d9da1dde4d9b070c1d9acf98d9819ec04058a0161f020022e49
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SHA512
4774119f1eb6f3f712fc29f7c7cceb31a67c62c01a6b7f09ccf17a85a4d78b3fed4f3a9532c353490f9058aae5db58d305a92a65a8e8039e7c123f48e73d1d51
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SSDEEP
768:escGoAxWdPN+wauZLePWTjZKZKfgm3Ehpe:tcVdPN9ePWTVF7Ebe
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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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Credentials from Password Stores: Credentials from Web Browsers
Malicious Access or copy of Web Browser Credential store.
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Looks for VirtualBox Guest Additions in registry
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Looks for VMWare Tools registry key
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1