Malware Analysis Report

2025-05-05 23:33

Sample ID 230127-h7j5raah5y
Target 23ee744fa24aaada6ab0a81166c2f5466d29d502
SHA256 850f818aca36188fff35a492275cd63ba81f6e48263faa669fb5e192165f2f92
Tags
purecrypter collection downloader loader persistence spyware stealer
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

850f818aca36188fff35a492275cd63ba81f6e48263faa669fb5e192165f2f92

Threat Level: Known bad

The file 23ee744fa24aaada6ab0a81166c2f5466d29d502 was found to be: Known bad.

Malicious Activity Summary

purecrypter collection downloader loader persistence spyware stealer

PureCrypter

Detect PureCrypter injector

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

Gathers network information

outlook_win_path

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-01-27 07:22

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-01-27 07:22

Reported

2023-01-27 07:25

Platform

win7-20220812-en

Max time kernel

48s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"

Signatures

Detect PureCrypter injector

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

PureCrypter

loader downloader purecrypter

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Sfrdma = "\"C:\\Users\\Admin\\AppData\\Roaming\\Cffvs\\Sfrdma.exe\"" C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1972 set thread context of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

Enumerates physical storage devices

Gathers network information

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\ipconfig.exe N/A
N/A N/A C:\Windows\SysWOW64\ipconfig.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1972 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1744 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 1744 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 1744 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 1744 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 1972 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1972 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1972 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1972 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1972 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 268 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Windows\SysWOW64\cmd.exe
PID 268 wrote to memory of 1576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 268 wrote to memory of 1576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 268 wrote to memory of 1576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 268 wrote to memory of 1576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ipconfig.exe
PID 1972 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 1616 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
PID 1972 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

"C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c ipconfig/release

C:\Windows\SysWOW64\ipconfig.exe

ipconfig /release

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c ipconfig/renew

C:\Windows\SysWOW64\ipconfig.exe

ipconfig /renew

C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

Network

Country Destination Domain Proto
N/A 3.121.219.193:80 3.121.219.193 tcp
N/A 8.8.8.8:53 api.ipify.org udp
N/A 64.185.227.155:443 api.ipify.org tcp
N/A 198.98.55.114:80 tcp

Files

memory/1972-54-0x0000000000BD0000-0x0000000000C4C000-memory.dmp

memory/1972-55-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

memory/1972-56-0x0000000006170000-0x00000000063D4000-memory.dmp

memory/1744-57-0x0000000000000000-mapping.dmp

memory/1692-58-0x0000000000000000-mapping.dmp

memory/2032-60-0x0000000000000000-mapping.dmp

memory/2032-62-0x000000006FC20000-0x00000000701CB000-memory.dmp

memory/2032-63-0x000000006FC20000-0x00000000701CB000-memory.dmp

memory/2032-64-0x000000006FC20000-0x00000000701CB000-memory.dmp

memory/268-65-0x0000000000000000-mapping.dmp

memory/1576-66-0x0000000000000000-mapping.dmp

memory/1972-68-0x0000000004F80000-0x0000000004FD4000-memory.dmp

memory/864-69-0x0000000000400000-0x0000000000430000-memory.dmp

memory/864-70-0x0000000000400000-0x0000000000430000-memory.dmp

memory/864-72-0x0000000000400000-0x0000000000430000-memory.dmp

memory/864-73-0x0000000000400000-0x0000000000430000-memory.dmp

memory/864-74-0x0000000000400000-0x0000000000430000-memory.dmp

memory/864-75-0x000000000042ADCE-mapping.dmp

memory/864-77-0x0000000000400000-0x0000000000430000-memory.dmp

memory/864-79-0x0000000000400000-0x0000000000430000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-01-27 07:22

Reported

2023-01-27 07:25

Platform

win10v2004-20221111-en

Max time kernel

135s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

"C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4888 -ip 4888

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1004

Network

Country Destination Domain Proto
N/A 178.79.208.1:80 tcp
N/A 3.121.219.193:80 tcp
N/A 20.54.89.106:443 tcp
N/A 8.8.8.8:53 226.101.242.52.in-addr.arpa udp
N/A 3.121.219.193:80 tcp
N/A 20.189.173.15:443 tcp
N/A 3.121.219.193:80 tcp
N/A 178.79.208.1:80 tcp
N/A 178.79.208.1:80 tcp
N/A 178.79.208.1:80 tcp
N/A 93.184.221.240:80 tcp
N/A 3.121.219.193:80 tcp
N/A 3.121.219.193:80 tcp

Files

memory/4888-132-0x0000000000C00000-0x0000000000C7C000-memory.dmp