Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
28-12-2023 13:29
Behavioral task
behavioral1
Sample
unban_exe.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
unban_exe.exe
Resource
win10v2004-20231222-en
General
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Target
unban_exe.exe
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Size
42KB
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MD5
0a26d7666170599b369dd2a4e6aeec10
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SHA1
3927d1d0e679f045465984ffe8cfbcc40b38a850
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SHA256
e50f994aff44a0dabca8ec7fa9de976d53d31daa4b702430f6325250695283d0
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SHA512
8a1b6e09c33d3346ed4f0e6c95e153d1dfc63d5b928cd6f5e5993f3b1467f7b2f77601793e80b2ab9b8b8cae5505794fccc92c7a55b343f3abc10e70f676b6cb
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SSDEEP
768:k+IrdxCGgrtQ7YB5uZaLnyTjtKZKfgm3Ehtn:2xor1B9LnyTpF7Evn
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/1053421109455884418/PpwDnLsbX_p99old1K-Q8P0cgEU1tq4j4yfXfhwS_8u68MpXLmpjMPRANw5lrUqGFYzT
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
Processes:
unban_exe.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions unban_exe.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
unban_exe.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools unban_exe.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
unban_exe.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion unban_exe.exe -
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
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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.
Processes:
flow ioc 2 ip4.seeip.org 4 ip-api.com -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
unban_exe.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum unban_exe.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 unban_exe.exe -
Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
unban_exe.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S unban_exe.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
unban_exe.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString unban_exe.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 unban_exe.exe -
Enumerates system info in registry 2 TTPs 4 IoCs
Processes:
unban_exe.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation unban_exe.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer unban_exe.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName unban_exe.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 unban_exe.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
unban_exe.exedescription pid process Token: SeDebugPrivilege 2244 unban_exe.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
unban_exe.exedescription pid process target process PID 2244 wrote to memory of 2812 2244 unban_exe.exe WerFault.exe PID 2244 wrote to memory of 2812 2244 unban_exe.exe WerFault.exe PID 2244 wrote to memory of 2812 2244 unban_exe.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\unban_exe.exe"C:\Users\Admin\AppData\Local\Temp\unban_exe.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
- Suspicious use of WriteProcessMemory
PID:2244 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2244 -s 12962⤵PID:2812