Malware Analysis Report

2025-01-18 16:46

Sample ID 220311-a6evmsggen
Target 3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d
SHA256 3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d
Tags
isrstealer spyware stealer upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d

Threat Level: Known bad

The file 3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d was found to be: Known bad.

Malicious Activity Summary

isrstealer spyware stealer upx

Isrstealer family

ISR Stealer Payload

UPX packed file

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-03-11 00:49

Signatures

ISR Stealer Payload

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

Isrstealer family

isrstealer

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-11 00:49

Reported

2022-03-11 06:38

Platform

win7-20220310-en

Max time kernel

4294182s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe"

Signatures

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

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe
PID 1804 wrote to memory of 1644 N/A C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe

"C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe"

C:\Users\Admin\AppData\Local\Temp\3c088b2ac5fce8576045021dce5333c7b8decdc56c0e9c3c4e172fe3be64b93d.exe

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

Network

N/A

Files

memory/1644-56-0x0000000000400000-0x0000000000453000-memory.dmp

memory/1644-58-0x00000000759C1000-0x00000000759C3000-memory.dmp

memory/1644-59-0x0000000000400000-0x0000000000453000-memory.dmp

memory/1644-60-0x0000000000400000-0x0000000000453000-memory.dmp

Analysis: behavioral2

Detonation Overview

Reported

0001-01-01 00:00

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A