Malware Analysis Report

2025-06-16 06:18

Sample ID 240107-bjx85schf6
Target 051ce434ea8ea139cb3fc0cd61b21a99.exe
SHA256 5aad4e2ad582c6fe27f4f7d2a9c526115cf40f9227385cb9e2c5d160c85bf11b
Tags
nanocore evasion keylogger persistence 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

5aad4e2ad582c6fe27f4f7d2a9c526115cf40f9227385cb9e2c5d160c85bf11b

Threat Level: Known bad

The file 051ce434ea8ea139cb3fc0cd61b21a99.exe was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Loads dropped DLL

Executes dropped EXE

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

NSIS installer

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-07 01:11

Signatures

Unsigned PE

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

NSIS installer

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-07 01:11

Reported

2024-01-07 01:13

Platform

win7-20231215-en

Max time kernel

120s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\051ce434ea8ea139cb3fc0cd61b21a99.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\Acrobat = "C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\Acrobat!.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ufyabb.exe\" " C:\Users\Admin\AppData\Local\Temp\ufyabb.exe N/A

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\ufyabb.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2424 set thread context of 2752 N/A C:\Users\Admin\AppData\Local\Temp\ufyabb.exe C:\Users\Admin\AppData\Local\Temp\ufyabb.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\051ce434ea8ea139cb3fc0cd61b21a99.exe

"C:\Users\Admin\AppData\Local\Temp\051ce434ea8ea139cb3fc0cd61b21a99.exe"

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 kennynanobelintourismedleonline.dumb1.com udp
DE 85.195.105.85:7072 kennynanobelintourismedleonline.dumb1.com tcp

Files

\Users\Admin\AppData\Local\Temp\ufyabb.exe

MD5 101a2de82607b0f99ef5d4a810896c9b
SHA1 34c52d9c349da842c27e76afb716227857a57cdb
SHA256 d3aa0b25ae8642adba83223811333cada5ffeaad584b7391b03e0f7fb28d864f
SHA512 2a62c1c7a319437f94f5f913f27a55a1274284eccdec5effa4689f9630ab64359c751375c8bac3d1af952bf2232a7230fa7044c6d1d588cc4f37c474117ee278

memory/2424-9-0x00000000000E0000-0x00000000000E2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\rdnhexth.c

MD5 5422b38bbfba1196cf692a1d6cbabd28
SHA1 6b6c03f98471ff2d01c047c4d167aa296050f405
SHA256 5247cc6c9ca9dbab728327d290a76cd05be6cd74682dbec5f19e5a4934a58e03
SHA512 08c874a7d0e46c1e4afc445d8335169b5836ebfec7bb2be9e7713868144c221feae2d1f6ea4cb32f1dfd27b2fde650d5d0569c47dafbc58de7fcd3eaada0f909

memory/2752-14-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2752-19-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2752-18-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2752-22-0x0000000000CE0000-0x0000000000D20000-memory.dmp

memory/2752-21-0x00000000748A0000-0x0000000074E4B000-memory.dmp

memory/2752-20-0x00000000748A0000-0x0000000074E4B000-memory.dmp

memory/2752-27-0x00000000748A0000-0x0000000074E4B000-memory.dmp

memory/2752-28-0x00000000748A0000-0x0000000074E4B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-07 01:11

Reported

2024-01-07 01:14

Platform

win10v2004-20231215-en

Max time kernel

137s

Max time network

171s

Command Line

"C:\Users\Admin\AppData\Local\Temp\051ce434ea8ea139cb3fc0cd61b21a99.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Acrobat = "C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\Acrobat!.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ufyabb.exe\" " C:\Users\Admin\AppData\Local\Temp\ufyabb.exe N/A

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\ufyabb.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2424 set thread context of 4080 N/A C:\Users\Admin\AppData\Local\Temp\ufyabb.exe C:\Users\Admin\AppData\Local\Temp\ufyabb.exe

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\051ce434ea8ea139cb3fc0cd61b21a99.exe

"C:\Users\Admin\AppData\Local\Temp\051ce434ea8ea139cb3fc0cd61b21a99.exe"

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 kennynanobelintourismedleonline.dumb1.com udp
DE 85.195.105.85:7072 kennynanobelintourismedleonline.dumb1.com tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 85.105.195.85.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
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
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

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

MD5 101a2de82607b0f99ef5d4a810896c9b
SHA1 34c52d9c349da842c27e76afb716227857a57cdb
SHA256 d3aa0b25ae8642adba83223811333cada5ffeaad584b7391b03e0f7fb28d864f
SHA512 2a62c1c7a319437f94f5f913f27a55a1274284eccdec5effa4689f9630ab64359c751375c8bac3d1af952bf2232a7230fa7044c6d1d588cc4f37c474117ee278

memory/2424-5-0x0000000001080000-0x0000000001082000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\rdnhexth.c

MD5 5422b38bbfba1196cf692a1d6cbabd28
SHA1 6b6c03f98471ff2d01c047c4d167aa296050f405
SHA256 5247cc6c9ca9dbab728327d290a76cd05be6cd74682dbec5f19e5a4934a58e03
SHA512 08c874a7d0e46c1e4afc445d8335169b5836ebfec7bb2be9e7713868144c221feae2d1f6ea4cb32f1dfd27b2fde650d5d0569c47dafbc58de7fcd3eaada0f909

memory/4080-8-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4080-10-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4080-11-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4080-13-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4080-14-0x0000000075390000-0x0000000075941000-memory.dmp

memory/4080-15-0x0000000002A70000-0x0000000002A80000-memory.dmp

memory/4080-16-0x0000000075390000-0x0000000075941000-memory.dmp

memory/4080-17-0x0000000002A70000-0x0000000002A80000-memory.dmp

memory/4080-18-0x0000000002A70000-0x0000000002A80000-memory.dmp

memory/4080-19-0x0000000075390000-0x0000000075941000-memory.dmp

memory/4080-20-0x0000000002A70000-0x0000000002A80000-memory.dmp

memory/4080-21-0x0000000002A70000-0x0000000002A80000-memory.dmp

memory/4080-22-0x0000000075390000-0x0000000075941000-memory.dmp

memory/4080-24-0x0000000002A70000-0x0000000002A80000-memory.dmp

memory/4080-27-0x0000000002A70000-0x0000000002A80000-memory.dmp