Malware Analysis Report

2024-12-07 14:04

Sample ID 241112-l81qnsyrfx
Target 535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe
SHA256 535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b
Tags
discovery vipkeylogger keylogger stealer collection spyware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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

535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b

Threat Level: Known bad

The file 535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe was found to be: Known bad.

Malicious Activity Summary

discovery vipkeylogger keylogger stealer collection spyware

Vipkeylogger family

VIPKeylogger

Loads dropped DLL

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Browser Information Discovery

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

outlook_office_path

Suspicious behavior: EnumeratesProcesses

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 10:12

Signatures

Unsigned PE

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

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-12 10:12

Reported

2024-11-12 10:15

Platform

win7-20241023-en

Max time kernel

118s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 220

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-11-12 10:12

Reported

2024-11-12 10:15

Platform

win10v2004-20241007-en

Max time kernel

92s

Max time network

143s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3820 wrote to memory of 3812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3820 wrote to memory of 3812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3820 wrote to memory of 3812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3812 -ip 3812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 10:12

Reported

2024-11-12 10:15

Platform

win7-20240903-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Vipkeylogger family

vipkeylogger

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2856 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe
PID 2856 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe
PID 2856 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe
PID 2856 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe
PID 2856 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe
PID 2856 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe

"C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe"

C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe

"C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 142.250.187.206:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.195:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.187.227:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 172.217.16.225:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 checkip.dyndns.org udp
JP 132.226.8.169:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

\Users\Admin\AppData\Local\Temp\nst5014.tmp\System.dll

MD5 4add245d4ba34b04f213409bfe504c07
SHA1 ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
SHA512 1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

memory/2856-12-0x00000000774A1000-0x00000000775A2000-memory.dmp

memory/2856-13-0x00000000774A0000-0x0000000077649000-memory.dmp

memory/2748-14-0x00000000774A0000-0x0000000077649000-memory.dmp

memory/2748-15-0x0000000000460000-0x00000000014C2000-memory.dmp

memory/2748-37-0x0000000000460000-0x00000000014C2000-memory.dmp

memory/2748-38-0x0000000000460000-0x00000000004A8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 10:12

Reported

2024-11-12 10:15

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Vipkeylogger family

vipkeylogger

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-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Browser Information Discovery

discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe

"C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe"

C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe

"C:\Users\Admin\AppData\Local\Temp\535d29bedc8c720ed7daaeb5e8d79c650b21664d72bad77106eb518975be223b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 100.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
GB 142.250.187.206:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 172.217.16.227:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.187.227:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 172.217.16.225:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 206.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 227.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 227.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 225.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 172.67.177.134:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 73.247.226.132.in-addr.arpa udp
US 8.8.8.8:53 134.177.67.172.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nsy7531.tmp\System.dll

MD5 4add245d4ba34b04f213409bfe504c07
SHA1 ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
SHA512 1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

memory/4936-11-0x0000000077931000-0x0000000077A51000-memory.dmp

memory/4936-12-0x0000000074795000-0x0000000074796000-memory.dmp

memory/1040-13-0x0000000077931000-0x0000000077A51000-memory.dmp

memory/1040-14-0x00000000779B8000-0x00000000779B9000-memory.dmp

memory/1040-15-0x00000000779D5000-0x00000000779D6000-memory.dmp

memory/1040-28-0x0000000000460000-0x00000000016B4000-memory.dmp

memory/1040-29-0x0000000000460000-0x00000000016B4000-memory.dmp

memory/1040-30-0x0000000077931000-0x0000000077A51000-memory.dmp

memory/1040-31-0x000000007282E000-0x000000007282F000-memory.dmp

memory/1040-32-0x0000000000460000-0x00000000004A8000-memory.dmp

memory/1040-33-0x00000000396A0000-0x0000000039C44000-memory.dmp

memory/1040-34-0x00000000395C0000-0x000000003965C000-memory.dmp

memory/1040-35-0x0000000072820000-0x0000000072FD0000-memory.dmp

memory/1040-37-0x000000007282E000-0x000000007282F000-memory.dmp

memory/1040-38-0x0000000072820000-0x0000000072FD0000-memory.dmp

memory/1040-40-0x000000003A1A0000-0x000000003A362000-memory.dmp

memory/1040-41-0x000000003A370000-0x000000003A3C0000-memory.dmp

memory/1040-43-0x0000000036FE0000-0x0000000037072000-memory.dmp

memory/1040-44-0x0000000037090000-0x000000003709A000-memory.dmp