Malware Analysis Report

2024-11-13 15:43

Sample ID 231226-yejxaagcdk
Target 897303e62f34067b7edb75f929444ed6
SHA256 e212714f1c55366b39723720da6a795db5ff29d95f203735d85a1751f2436f0a
Tags
mercurialgrabber stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e212714f1c55366b39723720da6a795db5ff29d95f203735d85a1751f2436f0a

Threat Level: Known bad

The file 897303e62f34067b7edb75f929444ed6 was found to be: Known bad.

Malicious Activity Summary

mercurialgrabber stealer

Mercurial Grabber Stealer

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-26 19:41

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-26 19:41

Reported

2023-12-28 11:33

Platform

win7-20231215-en

Max time network

122s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-26 19:41

Reported

2023-12-28 11:31

Platform

win10v2004-20231215-en

Max time kernel

168s

Max time network

192s

Command Line

"C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe"

Signatures

Mercurial Grabber Stealer

stealer mercurialgrabber

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5056 set thread context of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 5056 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4880 wrote to memory of 1704 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 4880 wrote to memory of 1704 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
PID 4880 wrote to memory of 1704 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

Processes

C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe

"C:\Users\Admin\AppData\Local\Temp\897303e62f34067b7edb75f929444ed6.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

dw20.exe -x -s 784

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 1.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 252.15.104.51.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 64.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/5056-0-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/5056-1-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/5056-2-0x0000000000C00000-0x0000000000C10000-memory.dmp

memory/4880-3-0x0000000000400000-0x0000000000410000-memory.dmp

memory/5056-5-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/4880-7-0x0000000000460000-0x0000000000470000-memory.dmp

memory/4880-8-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/4880-6-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/4880-15-0x0000000074FA0000-0x0000000075551000-memory.dmp