Analysis
- max time kernel
56s - max time network
58s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
19/08/2024, 15:27
Errors
General
- Target GFX locator by 89_39.exe
- Size 41KB
- Sample240819-sv96hssarc
- SHA256 44398ef8657a9fbb73eb1bfe7b3657241d0497318dcafabdd86669ee5dc32dc6
Malware Config
Extracted
-
mercurialgrabber
-
https://discord.com/api/webhooks/1275113676453580880/9MyUKYUCniUZuZMT3Ww37_BxIGyZdN9irR0Ljml5MW18Tz7TxMIpOI_aDCPDu_qayZOt
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
- Modifies data under HKEY_USERS 15 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\GFX locator by 89_39.exe"C:\Users\Admin\AppData\Local\Temp\GFX locator by 89_39.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
-
C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3969055 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1892-0-0x00007FFD06663000-0x00007FFD06665000-memory.dmp
memory/1892-1-0x0000000000830000-0x0000000000840000-memory.dmp
memory/1892-2-0x00007FFD06660000-0x00007FFD07121000-memory.dmp
memory/1892-3-0x00007FFD06663000-0x00007FFD06665000-memory.dmp
memory/1892-4-0x00007FFD06660000-0x00007FFD07121000-memory.dmp
memory/1892-6-0x00007FFD06660000-0x00007FFD07121000-memory.dmp