Malware Analysis Report

2024-10-18 21:50

Sample ID 240525-yy4e2agg8v
Target 31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938
SHA256 31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938
Tags
gandcrab
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938

Threat Level: Known bad

The file 31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938 was found to be: Known bad.

Malicious Activity Summary

gandcrab

Detects Reflective DLL injection artifacts

Detects ransomware indicator

GandCrab payload

Gandcrab Payload

Gandcrab family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-25 20:12

Signatures

Detects Reflective DLL injection artifacts

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

Detects ransomware indicator

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

GandCrab payload

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

Gandcrab Payload

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

Gandcrab family

gandcrab

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-25 20:12

Reported

2024-05-25 20:15

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2472 wrote to memory of 1764 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2472 wrote to memory of 1764 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2472 wrote to memory of 1764 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1764 -ip 1764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1764 -s 624

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.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 udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-25 20:12

Reported

2024-05-25 20:15

Platform

win7-20240221-en

Max time kernel

118s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\31477ea57134ef7567c45716f2961389d25fb05a3eb0f0102e72c9856f697938.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2288 -s 228

Network

N/A

Files

N/A