Malware Analysis Report

2025-01-18 16:46

Sample ID 220308-vnpx4scdcm
Target 61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a
SHA256 61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a
Tags
collection spyware stealer upx isrstealer
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

61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a

Threat Level: Known bad

The file 61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a was found to be: Known bad.

Malicious Activity Summary

collection spyware stealer upx isrstealer

ISR Stealer Payload

Isrstealer family

NirSoft MailPassView

Nirsoft

UPX packed file

Reads user/profile data of web browsers

Accesses Microsoft Outlook accounts

Suspicious use of SetThreadContext

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-03-08 17:08

Signatures

ISR Stealer Payload

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

Isrstealer family

isrstealer

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-08 17:08

Reported

2022-03-08 17:13

Platform

win7-en-20211208

Max time kernel

119s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe"

Signatures

NirSoft MailPassView

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

Nirsoft

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

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

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 1272 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 1648 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

Processes

C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

"C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe"

C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

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

C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

/scomma "C:\Users\Admin\AppData\Local\Temp\51MvecwCxa.ini"

Network

N/A

Files

memory/1272-57-0x0000000000400000-0x0000000000453000-memory.dmp

memory/1272-59-0x0000000075021000-0x0000000075023000-memory.dmp

memory/1272-60-0x0000000000400000-0x0000000000453000-memory.dmp

memory/1272-61-0x0000000000400000-0x0000000000453000-memory.dmp

memory/268-62-0x0000000000400000-0x000000000041F000-memory.dmp

memory/268-66-0x0000000000400000-0x000000000041F000-memory.dmp

memory/268-65-0x0000000000400000-0x000000000041F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-08 17:08

Reported

2022-03-08 17:12

Platform

win10v2004-en-20220112

Max time kernel

87s

Max time network

160s

Command Line

"C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe"

Signatures

NirSoft MailPassView

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

Nirsoft

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

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

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe
PID 2968 wrote to memory of 3716 N/A C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

Processes

C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

"C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe"

C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

/scomma "C:\Users\Admin\AppData\Local\Temp\5tSJpxgezC.ini"

C:\Users\Admin\AppData\Local\Temp\61368ae65a237202cea8082aa54d535dd8d119b4c2e272047e143eefd84e994a.exe

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

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 8.8.8.8:53 geo.prod.do.dsp.mp.microsoft.com udp
IE 51.104.162.168:443 geo.prod.do.dsp.mp.microsoft.com tcp
US 8.8.8.8:53 kv801.prod.do.dsp.mp.microsoft.com udp
NL 184.29.205.60:443 kv801.prod.do.dsp.mp.microsoft.com tcp
US 8.8.8.8:53 cp801.prod.do.dsp.mp.microsoft.com udp
NL 184.29.205.60:443 cp801.prod.do.dsp.mp.microsoft.com tcp
NL 184.29.205.60:443 cp801.prod.do.dsp.mp.microsoft.com tcp
NL 184.29.205.60:443 cp801.prod.do.dsp.mp.microsoft.com tcp
US 8.8.8.8:53 oneocsp.microsoft.com udp
US 131.253.33.203:80 oneocsp.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
NL 104.123.41.162:80 www.microsoft.com tcp

Files

memory/464-132-0x0000000000400000-0x0000000000453000-memory.dmp

memory/464-134-0x0000000000400000-0x0000000000453000-memory.dmp

memory/464-135-0x0000000000400000-0x0000000000453000-memory.dmp

memory/3716-136-0x0000000000400000-0x000000000041F000-memory.dmp

memory/3716-138-0x0000000000400000-0x000000000041F000-memory.dmp

memory/3716-139-0x0000000000400000-0x000000000041F000-memory.dmp