Malware Analysis Report

2024-09-11 09:28

Sample ID 240529-hdw78aed92
Target 720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f
SHA256 720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f
Tags
discordrat persistence rat rootkit stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f

Threat Level: Known bad

The file 720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discord RAT

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-29 06:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-29 06:37

Reported

2024-05-29 06:40

Platform

win7-20240215-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Necurity.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe N/A
N/A N/A C:\Windows\system32\WerFault.exe N/A
N/A N/A C:\Windows\system32\WerFault.exe N/A
N/A N/A C:\Windows\system32\WerFault.exe N/A
N/A N/A C:\Windows\system32\WerFault.exe N/A
N/A N/A C:\Windows\system32\WerFault.exe N/A

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\DllHost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2220 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe C:\Users\Admin\AppData\Local\Temp\Necurity.exe
PID 2220 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe C:\Users\Admin\AppData\Local\Temp\Necurity.exe
PID 2220 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe C:\Users\Admin\AppData\Local\Temp\Necurity.exe
PID 2220 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe C:\Users\Admin\AppData\Local\Temp\Necurity.exe
PID 2484 wrote to memory of 2404 N/A C:\Users\Admin\AppData\Local\Temp\Necurity.exe C:\Windows\system32\WerFault.exe
PID 2484 wrote to memory of 2404 N/A C:\Users\Admin\AppData\Local\Temp\Necurity.exe C:\Windows\system32\WerFault.exe
PID 2484 wrote to memory of 2404 N/A C:\Users\Admin\AppData\Local\Temp\Necurity.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe

"C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe"

C:\Windows\SysWOW64\DllHost.exe

C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}

C:\Users\Admin\AppData\Local\Temp\Necurity.exe

"C:\Users\Admin\AppData\Local\Temp\Necurity.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2484 -s 596

Network

N/A

Files

memory/2220-4-0x00000000009B0000-0x00000000009B2000-memory.dmp

memory/2216-5-0x0000000000190000-0x0000000000192000-memory.dmp

memory/2216-6-0x0000000001B60000-0x0000000001B61000-memory.dmp

\Users\Admin\AppData\Local\Temp\Necurity.exe

MD5 1697f0e2cb9b4ea2c0b061f5f5a09748
SHA1 c52c7bbd38cf30e996650756e0208c9a7e293c9e
SHA256 8788dcec9f8eab91e3b27aec2a8fde1981977e2f78cfa208635639229c78f6cd
SHA512 9abb578800122c2d997fb899f944c89f3e3c811e3cde2a6de125dfaf7ddc359140d42bfce965c4d00c9e3f1a3aea201741a5a9688ca24458b1f865a521e3c65c

memory/2484-13-0x000000013F180000-0x000000013F198000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\necurity.png

MD5 5eb37c011ce35222ae21a559968b49ac
SHA1 69b03f51b8cee870d2d8c07eb0564737bb65532b
SHA256 af8a484b863eda12986799261d0edbfdc28edb9fbe72fd25b1ef2bec08c93aac
SHA512 79d09e40e41475d44d3aa690afeaa4fe9b1b951a43eed87f1e074a9524f596fc7b97de06cd6d9cfbb24e0983e4f75433c24965a9d7ebea8736ecc3f776260fb0

memory/2216-20-0x0000000001B60000-0x0000000001B61000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-29 06:37

Reported

2024-05-29 06:40

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Necurity.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Necurity.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3108 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe C:\Users\Admin\AppData\Local\Temp\Necurity.exe
PID 3108 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe C:\Users\Admin\AppData\Local\Temp\Necurity.exe

Processes

C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe

"C:\Users\Admin\AppData\Local\Temp\720f911303c85d3a7aa374a01d3d926d8db0cf4981971fb80651a3e1b021114f.exe"

C:\Users\Admin\AppData\Local\Temp\Necurity.exe

"C:\Users\Admin\AppData\Local\Temp\Necurity.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.99:443 www.bing.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 99.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
NL 23.62.61.99:443 www.bing.com tcp
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.136.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 234.136.159.162.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 geolocation-db.com udp
DE 159.89.102.253:443 geolocation-db.com tcp
US 8.8.8.8:53 232.138.159.162.in-addr.arpa udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 253.102.89.159.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 9.179.89.13.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\Necurity.exe

MD5 1697f0e2cb9b4ea2c0b061f5f5a09748
SHA1 c52c7bbd38cf30e996650756e0208c9a7e293c9e
SHA256 8788dcec9f8eab91e3b27aec2a8fde1981977e2f78cfa208635639229c78f6cd
SHA512 9abb578800122c2d997fb899f944c89f3e3c811e3cde2a6de125dfaf7ddc359140d42bfce965c4d00c9e3f1a3aea201741a5a9688ca24458b1f865a521e3c65c

memory/1120-15-0x00007FFCF80B3000-0x00007FFCF80B5000-memory.dmp

memory/1120-14-0x000001C93DB40000-0x000001C93DB58000-memory.dmp

memory/1120-16-0x000001C958190000-0x000001C958352000-memory.dmp

memory/1120-17-0x00007FFCF80B0000-0x00007FFCF8B71000-memory.dmp

memory/1120-18-0x000001C959410000-0x000001C959938000-memory.dmp

memory/1120-19-0x00007FFCF80B3000-0x00007FFCF80B5000-memory.dmp

memory/1120-20-0x00007FFCF80B0000-0x00007FFCF8B71000-memory.dmp