Malware Analysis Report

2024-12-07 21:46

Sample ID 240716-ykbg4axcjr
Target 4fca013af418c870e0b9aa863f270573_JaffaCakes118
SHA256 a1fa9481ed2136b647da8ff2999ba799708562e87a046c51e00451ea0bbb8fcb
Tags
upx xtremerat persistence rat spyware
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

a1fa9481ed2136b647da8ff2999ba799708562e87a046c51e00451ea0bbb8fcb

Threat Level: Known bad

The file 4fca013af418c870e0b9aa863f270573_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

upx xtremerat persistence rat spyware

XtremeRAT

Detect XtremeRAT payload

Xtremerat family

UPX packed file

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-16 19:50

Signatures

Detect XtremeRAT payload

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

Xtremerat family

xtremerat

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-16 19:50

Reported

2024-07-16 19:52

Platform

win7-20240708-en

Max time kernel

149s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

UPX packed file

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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1328 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 1328 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 1328 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 1328 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 1328 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 1328 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1328 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1328 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1328 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1328 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files\Internet Explorer\iexplore.exe

"C:\Program Files\Internet Explorer\iexplore.exe"

Network

N/A

Files

memory/1328-0-0x0000000010000000-0x000000001004B000-memory.dmp

memory/1472-2-0x0000000010000000-0x000000001004B000-memory.dmp

memory/1472-3-0x0000000010000000-0x000000001004B000-memory.dmp

memory/1328-4-0x0000000010000000-0x000000001004B000-memory.dmp

memory/1472-5-0x0000000010000000-0x000000001004B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-16 19:50

Reported

2024-07-16 19:52

Platform

win10v2004-20240709-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4fca013af418c870e0b9aa863f270573_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4340 -ip 4340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 488

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4340 -ip 4340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 508

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 20.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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

Files

memory/3192-0-0x0000000010000000-0x000000001004B000-memory.dmp

memory/4340-1-0x0000000010000000-0x000000001004B000-memory.dmp

memory/3192-3-0x0000000010000000-0x000000001004B000-memory.dmp

memory/4340-4-0x0000000010000000-0x000000001004B000-memory.dmp