Malware Analysis Report

2024-10-23 19:45

Sample ID 240423-yykb6abe47
Target DeepFreeze3.exe
SHA256 283655432a294659d3532ab8624eab8b8ce6e7dade0a7eb98107f2a77186489c
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

283655432a294659d3532ab8624eab8b8ce6e7dade0a7eb98107f2a77186489c

Threat Level: Known bad

The file DeepFreeze3.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 behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-23 20:11

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 20:11

Reported

2024-04-23 20:14

Platform

win7-20240221-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.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\DeepFreeze3.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
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: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 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 3.6.115.64:15030 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 3.6.30.85:15030 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 3.6.115.182:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 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 3.6.115.182:15030 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
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 3.6.115.182:15030 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
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 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

Files

memory/2220-1-0x0000000000AA0000-0x0000000000AE0000-memory.dmp

memory/2220-2-0x0000000074F00000-0x00000000754AB000-memory.dmp

memory/2220-0-0x0000000074F00000-0x00000000754AB000-memory.dmp

memory/2220-5-0x0000000000AA0000-0x0000000000AE0000-memory.dmp

memory/2220-4-0x0000000074F00000-0x00000000754AB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-23 20:11

Reported

2024-04-23 20:14

Platform

win10v2004-20240412-en

Max time kernel

148s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.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\DeepFreeze3.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
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: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\svchost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe

"C:\Users\Admin\AppData\Local\Temp\DeepFreeze3.exe"

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k UnistackSvcGroup

Network

Country Destination Domain Proto
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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 107.122.6.3.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
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 3.6.115.64:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 64.115.6.3.in-addr.arpa udp
US 8.8.8.8:53 22.186.200.23.in-addr.arpa udp
US 8.8.8.8:53 67.32.209.4.in-addr.arpa udp
US 8.8.8.8:53 159.185.200.23.in-addr.arpa udp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 154.173.246.72.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 21.121.18.2.in-addr.arpa udp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 19.83.221.88.in-addr.arpa udp
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 3.6.115.64:15030 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 8.8.8.8:53 182.115.6.3.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 21.236.111.52.in-addr.arpa udp
N/A 127.0.0.1:15030 tcp
US 8.8.8.8:53 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 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
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 0.tcp.in.ngrok.io udp
IN 3.6.30.85:15030 0.tcp.in.ngrok.io tcp
US 8.8.8.8:53 206.23.85.13.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 19.251.17.2.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 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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net 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 8.8.8.8:53 232.98.6.3.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 0.tcp.in.ngrok.io udp
IN 3.6.115.64:15030 0.tcp.in.ngrok.io tcp
N/A 127.0.0.1:15030 tcp
N/A 127.0.0.1:15030 tcp

Files

memory/3592-0-0x0000000075160000-0x0000000075711000-memory.dmp

memory/3592-1-0x0000000001320000-0x0000000001330000-memory.dmp

memory/3592-2-0x0000000075160000-0x0000000075711000-memory.dmp

memory/3592-4-0x0000000001320000-0x0000000001330000-memory.dmp

memory/3592-5-0x0000000075160000-0x0000000075711000-memory.dmp

memory/3592-6-0x0000000001320000-0x0000000001330000-memory.dmp

memory/3592-7-0x0000000075160000-0x0000000075711000-memory.dmp

memory/2772-8-0x00000203D4640000-0x00000203D4650000-memory.dmp

memory/2772-24-0x00000203D4740000-0x00000203D4750000-memory.dmp

memory/2772-40-0x00000203DCA90000-0x00000203DCA91000-memory.dmp

memory/2772-42-0x00000203DCAC0000-0x00000203DCAC1000-memory.dmp

memory/2772-43-0x00000203DCAC0000-0x00000203DCAC1000-memory.dmp

memory/2772-44-0x00000203DCBD0000-0x00000203DCBD1000-memory.dmp