Resubmissions
12-05-2024 18:09
240512-wrsnvahe71 1012-05-2024 17:56
240512-wh2v6acb26 1012-05-2024 17:50
240512-we2qzsbh82 10Analysis
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max time kernel
147s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
12-05-2024 18:09
General
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Target
RGF-main/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
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/975244014364270683/FZnH_sfT1E7Axl_7pfCffp86xK6BWVM_UXXb74CN2p4kpHxH_6kuQsuzlglxNPVfnIm6
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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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Reads user/profile data of web browsers 2 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 3 IoCs
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
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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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Enumerates system info in registry 2 TTPs 4 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\RGF-main\RBF.exe"C:\Users\Admin\AppData\Local\Temp\RGF-main\RBF.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/3628-1-0x0000000000860000-0x0000000000870000-memory.dmpFilesize
64KB
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memory/3628-0-0x00007FFFFD8A3000-0x00007FFFFD8A5000-memory.dmpFilesize
8KB
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memory/3628-2-0x00007FFFFD8A0000-0x00007FFFFE361000-memory.dmpFilesize
10.8MB
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memory/3628-6-0x00007FFFFD8A0000-0x00007FFFFE361000-memory.dmpFilesize
10.8MB