Malware Analysis Report

2025-01-02 02:47

Sample ID 240718-clnyxszhlk
Target 55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118
SHA256 b2a85745bd56c4b3ee60f0dd23a4588e9786d74e4d8b87e40cfe9f860965a2cc
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

b2a85745bd56c4b3ee60f0dd23a4588e9786d74e4d8b87e40cfe9f860965a2cc

Threat Level: Known bad

The file 55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

upx xtremerat persistence rat spyware

XtremeRAT

Detect XtremeRAT payload

Xtremerat family

UPX packed file

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-18 02:10

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

2024-07-18 02:10

Reported

2024-07-18 02:12

Platform

win7-20240704-en

Max time kernel

149s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2356 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2356 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2356 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2356 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2356 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2356 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2356 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2356 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2356 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2356 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe C:\Program Files\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_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/2356-0-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2956-4-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2956-1-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2356-6-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2956-7-0x0000000010000000-0x000000001004B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-18 02:10

Reported

2024-07-18 02:12

Platform

win10v2004-20240709-en

Max time kernel

140s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_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\55c0ad98267cc9b276d946c79e3972b1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\55c0ad98267cc9b276d946c79e3972b1_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 384 -ip 384

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 384 -s 480

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 384 -ip 384

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 384 -s 488

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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/5052-0-0x0000000010000000-0x000000001004B000-memory.dmp

memory/384-1-0x0000000010000000-0x000000001004B000-memory.dmp

memory/5052-3-0x0000000010000000-0x000000001004B000-memory.dmp

memory/384-5-0x0000000010000000-0x000000001004B000-memory.dmp