Malware Analysis Report

2025-01-18 16:36

Sample ID 241128-c6c26axpfj
Target aaadc3682c3878ad3248752370d7e37d_JaffaCakes118
SHA256 b12b68fca3e63ed129254c48715f08ff1966a815614c5f58e3922dcf5bd7bc54
Tags
upx isrstealer discovery spyware stealer trojan
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

b12b68fca3e63ed129254c48715f08ff1966a815614c5f58e3922dcf5bd7bc54

Threat Level: Known bad

The file aaadc3682c3878ad3248752370d7e37d_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

upx isrstealer discovery spyware stealer trojan

ISR Stealer payload

ISR Stealer

Isrstealer family

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-28 02:40

Signatures

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

2024-11-28 02:40

Reported

2024-11-28 02:43

Platform

win7-20241010-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe"

Signatures

ISR Stealer

trojan stealer isrstealer

ISR Stealer 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
N/A N/A N/A N/A

Isrstealer family

isrstealer

Reads user/profile data of web browsers

spyware stealer

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
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

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\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2356 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 2536 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

/scomma "C:\Users\Admin\AppData\Local\Temp\JcAX0pxCDv.ini"

Network

Country Destination Domain Proto
US 70.32.87.25:80 tcp
US 70.32.87.25:80 tcp

Files

memory/2356-0-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/2536-7-0x0000000000400000-0x0000000000435000-memory.dmp

memory/2536-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2536-14-0x0000000000400000-0x0000000000435000-memory.dmp

memory/2356-10-0x00000000027F0000-0x00000000028CF000-memory.dmp

memory/2536-9-0x0000000000400000-0x0000000000435000-memory.dmp

memory/2356-19-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/2536-5-0x0000000000400000-0x0000000000435000-memory.dmp

memory/2500-28-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2536-27-0x00000000026C0000-0x000000000279F000-memory.dmp

memory/2500-26-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2500-25-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2500-23-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2500-32-0x0000000000400000-0x0000000000453000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\JcAX0pxCDv.ini

MD5 d1ea279fb5559c020a1b4137dc4de237
SHA1 db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256 fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

memory/2536-34-0x00000000026C0000-0x000000000279F000-memory.dmp

memory/2536-35-0x0000000000400000-0x0000000000435000-memory.dmp

memory/2536-41-0x0000000000400000-0x0000000000435000-memory.dmp

memory/2536-40-0x0000000000440000-0x000000000051F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-28 02:40

Reported

2024-11-28 02:43

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe"

Signatures

ISR Stealer

trojan stealer isrstealer

ISR Stealer 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
N/A N/A N/A N/A

Isrstealer family

isrstealer

Reads user/profile data of web browsers

spyware stealer

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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

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\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 4964 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe
PID 640 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\aaadc3682c3878ad3248752370d7e37d_JaffaCakes118.exe

/scomma "C:\Users\Admin\AppData\Local\Temp\jIMHul8kRe.ini"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 70.32.87.25:80 tcp
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 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4964-0-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/640-5-0x0000000000400000-0x0000000000435000-memory.dmp

memory/640-7-0x0000000000400000-0x0000000000435000-memory.dmp

memory/640-9-0x0000000000400000-0x0000000000435000-memory.dmp

memory/4964-15-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/4312-12-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4312-16-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4312-18-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4312-17-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4312-21-0x0000000000400000-0x0000000000453000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\jIMHul8kRe.ini

MD5 d1ea279fb5559c020a1b4137dc4de237
SHA1 db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256 fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

memory/640-23-0x0000000000400000-0x0000000000435000-memory.dmp

memory/640-26-0x0000000000400000-0x0000000000435000-memory.dmp