Malware Analysis Report

2024-10-19 10:27

Sample ID 240619-2jrz8szakn
Target 00ea206f316981790d5eedc6aaf23d00_JaffaCakes118
SHA256 77eb02d972ac37ee02210a3ba0ae73a0f2e904e6c40aa46507354aa6e9ed46ed
Tags
isrstealer spyware stealer trojan upx
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

77eb02d972ac37ee02210a3ba0ae73a0f2e904e6c40aa46507354aa6e9ed46ed

Threat Level: Known bad

The file 00ea206f316981790d5eedc6aaf23d00_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

isrstealer spyware stealer trojan upx

ISR Stealer

ISR Stealer payload

UPX packed file

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-19 22:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 22:37

Reported

2024-06-19 22:39

Platform

win7-20240611-en

Max time kernel

141s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2100 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 2364 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

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

Network

N/A

Files

memory/2364-2-0x0000000000400000-0x0000000000432000-memory.dmp

memory/2996-7-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2996-9-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2996-10-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2996-12-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2996-11-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2996-16-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2364-17-0x0000000000400000-0x0000000000432000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-19 22:37

Reported

2024-06-19 22:39

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640 N/A C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/4000-2-0x0000000000400000-0x0000000000432000-memory.dmp

memory/4000-4-0x0000000000400000-0x0000000000432000-memory.dmp

memory/640-7-0x0000000000400000-0x0000000000453000-memory.dmp

memory/640-9-0x0000000000400000-0x0000000000453000-memory.dmp

memory/640-10-0x0000000000400000-0x0000000000453000-memory.dmp

memory/640-11-0x0000000000400000-0x0000000000453000-memory.dmp

memory/640-13-0x0000000000400000-0x0000000000453000-memory.dmp

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

MD5 d1ea279fb5559c020a1b4137dc4de237
SHA1 db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256 fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

memory/4000-16-0x0000000000400000-0x0000000000432000-memory.dmp