Malware Analysis Report

2024-10-23 19:44

Sample ID 240423-yv2r2abd2y
Target DeepFreeze2.exe
SHA256 43e23435f86b410624d67ff00f323652262871be7d5efaf40c336ea59a570149
Tags
nanocore evasion keylogger spyware stealer trojan
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

43e23435f86b410624d67ff00f323652262871be7d5efaf40c336ea59a570149

Threat Level: Known bad

The file DeepFreeze2.exe was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger spyware stealer trojan

Nanocore family

NanoCore

Checks whether UAC is enabled

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-23 20:07

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-23 20:07

Reported

2024-04-23 20:09

Platform

win10v2004-20240412-en

Max time kernel

111s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.182:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 182.115.6.3.in-addr.arpa udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 156.33.209.4.in-addr.arpa udp
US 8.8.8.8:53 163.233.34.23.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 107.122.6.3.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 85.30.6.3.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.98.232:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 232.98.6.3.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.98.232:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 48.251.17.2.in-addr.arpa udp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.98.232:15030 0.tcp.in.ngrok.io tcp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.98.232:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.98.232:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp

Files

memory/4772-0-0x0000000074EB0000-0x0000000075461000-memory.dmp

memory/4772-1-0x0000000001250000-0x0000000001260000-memory.dmp

memory/4772-2-0x0000000074EB0000-0x0000000075461000-memory.dmp

memory/4772-4-0x0000000001250000-0x0000000001260000-memory.dmp

memory/4772-5-0x0000000074EB0000-0x0000000075461000-memory.dmp

memory/4772-6-0x0000000074EB0000-0x0000000075461000-memory.dmp

memory/4100-8-0x0000000000CD0000-0x0000000000CE0000-memory.dmp

memory/4100-7-0x0000000074EB0000-0x0000000075461000-memory.dmp

memory/4100-9-0x0000000074EB0000-0x0000000075461000-memory.dmp

memory/4100-11-0x0000000074EB0000-0x0000000075461000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-23 20:07

Reported

2024-04-23 20:09

Platform

win7-20231129-en

Max time kernel

109s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A
N/A 0.tcp.in.ngrok.io N/A N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe"

C:\Windows\system32\verclsid.exe

"C:\Windows\system32\verclsid.exe" /S /C {0B2C9183-C9FA-4C53-AE21-C900B0C39965} /I {0C733A8A-2A1C-11CE-ADE5-00AA0044773D} /X 0x401

C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze2.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.182:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.182:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.98.232:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.122.107:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp

Files

memory/2996-0-0x0000000074070000-0x000000007461B000-memory.dmp

memory/2996-1-0x0000000074070000-0x000000007461B000-memory.dmp

memory/2996-2-0x0000000000BF0000-0x0000000000C30000-memory.dmp

memory/2996-4-0x0000000074070000-0x000000007461B000-memory.dmp

memory/2996-5-0x0000000074070000-0x000000007461B000-memory.dmp

memory/2996-6-0x0000000000BF0000-0x0000000000C30000-memory.dmp

memory/540-7-0x0000000074070000-0x000000007461B000-memory.dmp

memory/540-8-0x00000000006F0000-0x0000000000730000-memory.dmp

memory/540-9-0x0000000074070000-0x000000007461B000-memory.dmp

memory/540-10-0x0000000074070000-0x000000007461B000-memory.dmp