Malware Analysis Report

2024-10-18 21:25

Sample ID 231226-vrkskafhem
Target 7f89e0d7af8a5d3aac55f8e431a7155d
SHA256 af06048a49faa8cc34dfc217cea2064b98e6776d4708d9d6f0d7c0c926ff3105
Tags
a310logger stormkitty collection spyware stealer
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

af06048a49faa8cc34dfc217cea2064b98e6776d4708d9d6f0d7c0c926ff3105

Threat Level: Known bad

The file 7f89e0d7af8a5d3aac55f8e431a7155d was found to be: Known bad.

Malicious Activity Summary

a310logger stormkitty collection spyware stealer

A310logger

StormKitty

StormKitty payload

A310logger Executable

Reads local data of messenger clients

Looks up geolocation information via web service

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: MapViewOfSection

outlook_win_path

Checks processor information in registry

Suspicious use of SetWindowsHookEx

outlook_office_path

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-26 17:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-26 17:13

Reported

2023-12-28 06:34

Platform

win7-20231215-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe

"C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe"

C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe

"C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe"

Network

N/A

Files

memory/2956-2-0x0000000000100000-0x0000000000102000-memory.dmp

memory/2956-1-0x00000000003E0000-0x00000000004E0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-26 17:13

Reported

2023-12-28 06:33

Platform

win10v2004-20231215-en

Max time kernel

1s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe"

Signatures

A310logger

stealer spyware a310logger

StormKitty

stealer stormkitty

StormKitty payload

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

A310logger Executable

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

Reads local data of messenger clients

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Looks up geolocation information via web service

Enumerates physical storage devices

Program crash

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

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4388 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe
PID 4388 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe
PID 4388 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe
PID 4388 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
PID 3248 wrote to memory of 3924 N/A C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe

"C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe"

C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe

"C:\Users\Admin\AppData\Local\Temp\7f89e0d7af8a5d3aac55f8e431a7155d.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 4940 -ip 4940

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 80

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 22.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 icanhazip.com udp
US 104.18.114.97:80 icanhazip.com tcp
US 8.8.8.8:53 api.mylnikov.org udp
US 172.67.196.114:443 api.mylnikov.org tcp
US 8.8.8.8:53 114.196.67.172.in-addr.arpa udp
US 8.8.8.8:53 97.114.18.104.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 104.18.114.97:80 icanhazip.com tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 172.67.196.114:443 api.mylnikov.org tcp

Files

memory/3248-5-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3924-8-0x0000000000400000-0x0000000000418000-memory.dmp

memory/3924-9-0x0000000074090000-0x0000000074641000-memory.dmp

memory/3924-10-0x0000000001060000-0x0000000001070000-memory.dmp

memory/3924-11-0x0000000074090000-0x0000000074641000-memory.dmp

memory/3248-3-0x0000000000400000-0x0000000000430000-memory.dmp

memory/4388-2-0x0000000000DC0000-0x0000000000DC2000-memory.dmp

memory/4388-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

memory/1772-24-0x0000000001060000-0x0000000001070000-memory.dmp

memory/1772-28-0x00007FFEDB6E0000-0x00007FFEDC081000-memory.dmp

memory/1772-29-0x00007FFEDB6E0000-0x00007FFEDC081000-memory.dmp

memory/3924-31-0x0000000074090000-0x0000000074641000-memory.dmp

memory/1772-23-0x00007FFEDB6E0000-0x00007FFEDC081000-memory.dmp

memory/3248-32-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3712-38-0x0000000073DA0000-0x0000000074351000-memory.dmp

memory/3712-40-0x0000000073DA0000-0x0000000074351000-memory.dmp

memory/3712-39-0x0000000000F00000-0x0000000000F10000-memory.dmp

memory/3712-55-0x0000000073DA0000-0x0000000074351000-memory.dmp

memory/4732-54-0x00007FFEDAB30000-0x00007FFEDB4D1000-memory.dmp

memory/4732-53-0x00007FFEDAB30000-0x00007FFEDB4D1000-memory.dmp

memory/4732-56-0x00007FFEDAB30000-0x00007FFEDB4D1000-memory.dmp