Analysis
- max time kernel
93s - max time network
98s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
31/08/2024, 00:08
General
- Target mercurialll.exe
- Size 42KB
- Sample240831-ae2v4atgmf
- SHA256 42b41379ffd81e77b83fdd6fbef9b3867206e6a2a1b81bb5543fddcf4b60d1c3
Malware Config
Extracted
-
mercurialgrabber
-
https://discord.com/api/webhooks/1279217204323156153/PfnFxjSTBGvOFUR_eBCUTW-98gwm5YlZ7kySbZHvpfCiTR6h5wK9dsiLKp3e86ugBnX0
Signatures
- Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\mercurialll.exe"C:\Users\Admin\AppData\Local\Temp\mercurialll.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 Enterprise v15
Replay Monitor
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Downloads
memory/3228-0-0x00007FFF68093000-0x00007FFF68095000-memory.dmp
memory/3228-1-0x0000000000DC0000-0x0000000000DD0000-memory.dmp
memory/3228-2-0x00007FFF68090000-0x00007FFF68B51000-memory.dmp
memory/3228-3-0x00007FFF68093000-0x00007FFF68095000-memory.dmp
memory/3228-4-0x00007FFF68090000-0x00007FFF68B51000-memory.dmp