Malware Analysis Report

2024-10-19 08:44

Sample ID 240725-rev6zssepl
Target 6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118
SHA256 6ec7b2b08274592b5830ae39c0e6cae025367d455a7ee5407daea259f89b374f
Tags
stealer revengerat discovery
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

6ec7b2b08274592b5830ae39c0e6cae025367d455a7ee5407daea259f89b374f

Threat Level: Known bad

The file 6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

stealer revengerat discovery

RevengeRat Executable

Revengerat family

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Drops file in Windows directory

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 14:06

Signatures

RevengeRat Executable

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

Revengerat family

revengerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 14:06

Reported

2024-07-25 14:09

Platform

win7-20240708-en

Max time kernel

141s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\original.exe N/A

Loads dropped DLL

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

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\1.exe C:\Users\Admin\AppData\Local\Temp\original.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\original.exe

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\original.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe"

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 156

Network

N/A

Files

memory/2292-1-0x000007FEF58FE000-0x000007FEF58FF000-memory.dmp

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

MD5 940d08d63a521c34993b809b52c4596a
SHA1 ee37869129ea4d5b63ebe0a3c8bedc201489961c
SHA256 21c135e31a3e3b649d991c9e3e17f56fab8e27f2c03756048cbd747c72e996f2
SHA512 f10a1df05fbb268efc17509dd83fc4ad0c7ab407b18bffef169a8e64abf481223676d07dd0d9371e22c3bb1c5b074acabb0c338a0e41ae85a542d12c33d2bf50

memory/2292-9-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

memory/2028-13-0x0000000000400000-0x0000000000474000-memory.dmp

memory/2292-15-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 14:06

Reported

2024-07-25 14:09

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\original.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\1.exe C:\Users\Admin\AppData\Local\Temp\original.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\original.exe

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\original.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fe4ac17766e2878f6b57320cfafcbe4_JaffaCakes118.exe"

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3508 -ip 3508

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3508 -s 508

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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/944-0-0x00007FFB65B75000-0x00007FFB65B76000-memory.dmp

memory/944-1-0x00007FFB658C0000-0x00007FFB66261000-memory.dmp

memory/944-3-0x00007FFB658C0000-0x00007FFB66261000-memory.dmp

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

MD5 940d08d63a521c34993b809b52c4596a
SHA1 ee37869129ea4d5b63ebe0a3c8bedc201489961c
SHA256 21c135e31a3e3b649d991c9e3e17f56fab8e27f2c03756048cbd747c72e996f2
SHA512 f10a1df05fbb268efc17509dd83fc4ad0c7ab407b18bffef169a8e64abf481223676d07dd0d9371e22c3bb1c5b074acabb0c338a0e41ae85a542d12c33d2bf50

memory/3508-12-0x0000000000400000-0x0000000000474000-memory.dmp

memory/944-14-0x00007FFB658C0000-0x00007FFB66261000-memory.dmp