mercurialgrabber | ccf8f646ddf20ba1e354c3ad35880e441d78ab292a2fd8b2edd49f3abfbe0422

Resubmissions

17/03/2025, 16:00

250317-tf3cssxms8 10

17/03/2025, 15:57

250317-td9dbstwgs 10

Analysis

max time kernel
125s
max time network
126s
platform
windows11-21h2_x64
resource
win11-20250314-en
resource tags

arch:x64arch:x86image:win11-20250314-enlocale:en-usos:windows11-21h2-x64system
submitted
17/03/2025, 15:57

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Report Analysis Logs

General

Target

GrimClient3.5.exe
Size

42KB
MD5

f8aad0ba44c22a03a92c8a992de6f188
SHA1

a8f8ac95ee5a49a473104581ba073118c0f545f7
SHA256

ccf8f646ddf20ba1e354c3ad35880e441d78ab292a2fd8b2edd49f3abfbe0422
SHA512

7fa3cb08ee2b176ddaeb3bf20bed0a46a583c87a01922851975e1d191999f47a9dfe4421c8eb50c15c5c8b97d80c99d3da59fc97eb7756b84a216d5b61f51820
SSDEEP

384:7AfIRHS2LtjR39hxiTRWgxfYTx2s/XZxIh/9oJEFq5nm0GTAsQ4KQsLd/SfgUfAQ:Z7DxURWf4uZvLlGTjQ4KZKfgm3Eht+

Score

10^/10

mercurialgrabber discovery spyware stealer

Malware Config

Extracted

Family

mercurialgrabber

https://discord.com/api/webhooks/1351222685405024296/pvzGqfhW1MeB2uoiUPX5kRWkfddZIOBcx4zo8SpxDvoTeVdF_InCZ3P760g3QMnaEEnA

Signatures

Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
stealer mercurialgrabber
Mercurialgrabber family
mercurialgrabber
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
1	discord.com
4	discord.com
5	discord.com
19	discord.com

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip4.seeip.org
1	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	GrimClient3.5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	GrimClient3.5.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\MuiCache	BackgroundTransferHost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5948	GrimClient3.5.exe

C:\Users\Admin\AppData\Local\Temp\GrimClient3.5.exe
"C:\Users\Admin\AppData\Local\Temp\GrimClient3.5.exe"
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:5948

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
1⤵
- System Location Discovery: System Language Discovery
PID:3392

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,Control_RunDLL C:\Windows\System32\srchadmin.dll ,
1⤵
PID:644

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control