Malware Analysis Report

2024-09-23 05:29

Sample ID 240531-t9rs6afa87
Target 87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118
SHA256 e9915d4de1cd8bb63097f3e461e14c11edb7c84141c1225a30c7032aac613526
Tags
gandcrab backdoor ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

e9915d4de1cd8bb63097f3e461e14c11edb7c84141c1225a30c7032aac613526

Threat Level: Known bad

The file 87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gandcrab backdoor ransomware

Gandcrab

Gandcrab family

GandCrab payload

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-31 16:45

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: behavioral2

Detonation Overview

Submitted

2024-05-31 16:45

Reported

2024-05-31 16:48

Platform

win10v2004-20240508-en

Max time kernel

138s

Max time network

115s

Command Line

"C:\Users\Admin\AppData\Local\Temp\87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118.exe"

Signatures

GandCrab payload

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

Gandcrab

ransomware backdoor gandcrab

Processes

C:\Users\Admin\AppData\Local\Temp\87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4204 -ip 4204

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4204 -s 344

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.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
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa 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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/4204-0-0x000000000F080000-0x000000000F096000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 16:45

Reported

2024-05-31 16:48

Platform

win7-20240508-en

Max time kernel

117s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\87ac3b3aa5e1dd2f8f1151218d784b75_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 124

Network

N/A

Files

memory/1708-0-0x000000000F8D0000-0x000000000F8E6000-memory.dmp