Analysis
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max time kernel
34s -
max time network
36s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
25-08-2024 19:42
General
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Target
optimization.exe
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Size
68KB
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MD5
51d9d0a93081b537227b1a2ab44dc507
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SHA1
c2cbb6e76cc2a6b31065a5eb1bf19ee1600c0c58
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SHA256
5ec5f86f35a06554caedf23c766ad317fdc9eba5fb1242e063459d6d60dd805e
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SHA512
89664bfc3395584e1cc6a2264ecb2e7995750309eba0416ddcc51d55fe5e659e80e30c5b2ade372e27941921e755b5fad04a052fe88b82fcdb2c89298dbf820e
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SSDEEP
768:c2CZ9QLvnDylOcluZuLwnpTj9KZKfgm3Ehq5x/fK:c7AjnD9c7LwpTZF7EcPnK
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/1277341597796925543/uBiSQjMIcZSjiE58SS7EsUdcpaONS8BCEIDgfigLN8z84blntDHVG1OHQj01TuM0t1rL
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 2 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\optimization.exe"C:\Users\Admin\AppData\Local\Temp\optimization.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
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
8KB
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Filesize
88KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
10.8MB