Malware Analysis Report

2024-12-08 02:31

Sample ID 230810-jjdhqscg91
Target cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.zip
SHA256 b4b0c2a4f88930c7a9de40fd273784aab7ee166b26aea6b973a7e0be86153891
Tags
r77
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

b4b0c2a4f88930c7a9de40fd273784aab7ee166b26aea6b973a7e0be86153891

Threat Level: Known bad

The file cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.zip was found to be: Known bad.

Malicious Activity Summary

r77

r77 rootkit payload

R77 family

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-08-10 07:41

Signatures

R77 family

r77

r77 rootkit payload

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-10 07:41

Reported

2023-08-10 07:45

Platform

win7-20230712-en

Max time kernel

117s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.exe

"C:\Users\Admin\AppData\Local\Temp\cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2968 -s 1144

Network

N/A

Files

memory/2968-54-0x0000000000170000-0x00000000001AE000-memory.dmp

memory/2968-57-0x000000001AE80000-0x000000001AF00000-memory.dmp

memory/2968-56-0x000000001AE80000-0x000000001AF00000-memory.dmp

memory/2968-55-0x000007FEF5110000-0x000007FEF5AFC000-memory.dmp

memory/2968-58-0x000000001AE80000-0x000000001AF00000-memory.dmp

memory/2968-62-0x000000001AE80000-0x000000001AF00000-memory.dmp

memory/2968-63-0x000007FEF5110000-0x000007FEF5AFC000-memory.dmp

memory/2968-64-0x000000001AE80000-0x000000001AF00000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-10 07:41

Reported

2023-08-10 07:45

Platform

win10v2004-20230703-en

Max time kernel

127s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.exe

"C:\Users\Admin\AppData\Local\Temp\cc4864a25a305759921b73d753116873493f2c526a396839d4da6815492299d8.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 416 -p 2792 -ip 2792

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2792 -s 1168

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 520 -p 2792 -ip 2792

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2792 -s 1196

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 137.71.105.51.in-addr.arpa udp

Files

memory/2792-133-0x00007FFA74260000-0x00007FFA74D21000-memory.dmp

memory/2792-134-0x000002409C380000-0x000002409C390000-memory.dmp

memory/2792-135-0x000002409C380000-0x000002409C390000-memory.dmp

memory/2792-136-0x000002409C380000-0x000002409C390000-memory.dmp

memory/2792-137-0x000002409C380000-0x000002409C390000-memory.dmp

memory/2792-138-0x000002409C380000-0x000002409C390000-memory.dmp

memory/2792-139-0x00007FFA74260000-0x00007FFA74D21000-memory.dmp