Malware Analysis Report

2025-01-03 09:01

Sample ID 240929-g93t7swbmg
Target fdf851ef63e70e59f69dad3cac804172_JaffaCakes118
SHA256 442658e054ae806c0caa4eb7b976a68f7b7e36057453578b948a12dadac478cd
Tags
gandcrab backdoor discovery ransomware
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

442658e054ae806c0caa4eb7b976a68f7b7e36057453578b948a12dadac478cd

Threat Level: Known bad

The file fdf851ef63e70e59f69dad3cac804172_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gandcrab backdoor discovery ransomware

Gandcrab

GandCrab payload

Gandcrab family

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-29 06:31

Signatures

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: behavioral1

Detonation Overview

Submitted

2024-09-29 06:31

Reported

2024-09-29 06:33

Platform

win7-20240708-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe"

Signatures

GandCrab payload

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

Gandcrab

ransomware backdoor gandcrab

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 124

Network

N/A

Files

memory/1868-0-0x000000000F6C0000-0x000000000F6D6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-29 06:31

Reported

2024-09-29 06:33

Platform

win10v2004-20240802-en

Max time kernel

96s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe"

Signatures

GandCrab payload

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

Gandcrab

ransomware backdoor gandcrab

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\fdf851ef63e70e59f69dad3cac804172_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2044 -ip 2044

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 344

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 99.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/2044-0-0x000000000F1B0000-0x000000000F1C6000-memory.dmp