Malware Analysis Report

2025-01-03 08:57

Sample ID 240926-vym69sygpn
Target 2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab
SHA256 1e6d3058cfab698018786db48f2ca7a407b43cf0718937471ea3188f8ac3d086
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

1e6d3058cfab698018786db48f2ca7a407b43cf0718937471ea3188f8ac3d086

Threat Level: Known bad

The file 2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab was found to be: Known bad.

Malicious Activity Summary

gandcrab backdoor discovery ransomware

GandCrab payload

Gandcrab family

Gandcrab

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-26 17:23

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

2024-09-26 17:23

Reported

2024-09-26 17:26

Platform

win7-20240729-en

Max time kernel

91s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe"

Signatures

GandCrab payload

Description Indicator Process Target
N/A N/A N/A N/A
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\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 124

Network

N/A

Files

memory/2636-0-0x000000000F490000-0x000000000F4A69F8-memory.dmp

memory/2636-1-0x000000000F490000-0x000000000F4A69F8-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-26 17:23

Reported

2024-09-26 17:26

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe"

Signatures

GandCrab payload

Description Indicator Process Target
N/A N/A N/A N/A
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\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-26_2b1ee4ad90e56df0cb482ceb8204bf86_gandcrab.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3900 -ip 3900

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 344

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.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 99.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/3900-0-0x000000000F230000-0x000000000F2469F8-memory.dmp

memory/3900-1-0x000000000F230000-0x000000000F2469F8-memory.dmp