Malware Analysis Report

2024-10-19 10:27

Sample ID 240625-alb81staql
Target 0b78794879197dafa60f4a3080372539_JaffaCakes118
SHA256 4396dde688df17d4da491abd7de31699f4051722d25094ef5bcf353dd47aa24f
Tags
isrstealer 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

4396dde688df17d4da491abd7de31699f4051722d25094ef5bcf353dd47aa24f

Threat Level: Known bad

The file 0b78794879197dafa60f4a3080372539_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

isrstealer spyware stealer trojan

ISR Stealer payload

ISR Stealer

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-25 00:17

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 00:17

Reported

2024-06-25 00:20

Platform

win7-20240220-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_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
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

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe
PID 2368 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 brobrobro.freeiz.com udp
US 8.8.8.8:53 brobrobro.freeiz.com udp
US 153.92.0.100:80 brobrobro.freeiz.com tcp
US 153.92.0.100:80 brobrobro.freeiz.com tcp

Files

memory/2368-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/3048-4-0x0000000000400000-0x0000000000417000-memory.dmp

memory/1412-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3048-13-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1412-14-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3048-17-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3048-18-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3048-19-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1412-20-0x0000000000400000-0x0000000000417000-memory.dmp

memory/1412-21-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 00:17

Reported

2024-06-25 00:20

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0b78794879197dafa60f4a3080372539_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3900 -ip 3900

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 252

Network

Country Destination Domain Proto
US 52.111.229.48:443 tcp

Files

memory/3900-0-0x00000000001F0000-0x00000000001F1000-memory.dmp