Malware Analysis Report

2025-06-16 06:19

Sample ID 240106-jwjkhsbebl
Target a632a39ffdce2f2de984c6992d188986.exe
SHA256 6800905847788c228e211fd1086dad6a20aa745d1351c0bd43d5f89aa58b1c9e
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

6800905847788c228e211fd1086dad6a20aa745d1351c0bd43d5f89aa58b1c9e

Threat Level: Known bad

The file a632a39ffdce2f2de984c6992d188986.exe was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Program Files directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

Creates scheduled task(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-06 08:01

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-06 08:01

Reported

2024-01-06 08:03

Platform

win7-20231215-en

Max time kernel

147s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LAN Monitor = "C:\\Program Files\\LAN Monitor\\lanmon.exe" C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.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\a632a39ffdce2f2de984c6992d188986.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\LAN Monitor\lanmon.exe C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A
File opened for modification C:\Program Files\LAN Monitor\lanmon.exe C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe

"C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7C22.tmp"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp86FC.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp

Files

memory/2456-0-0x000007FEF5A80000-0x000007FEF641D000-memory.dmp

memory/2456-1-0x00000000020B0000-0x0000000002130000-memory.dmp

memory/2456-2-0x00000000020B0000-0x0000000002130000-memory.dmp

memory/2456-3-0x000007FEF5A80000-0x000007FEF641D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp7C22.tmp

MD5 029e60b39959bba895979975e33b96a5
SHA1 ebd492c14ffb3733d315adc7378175a4de8d4104
SHA256 037de60417e4d3866d82505a021651fd8101ad0c4270e86a1cc3c272dde08196
SHA512 8977daaa0da4713c3802562402731d201c063385cd86728e81528a4b419f8a8302f6408e53906b69ebace2fc83b5567c2a6b6cf25958b3f73db3874909ef82bd

C:\Users\Admin\AppData\Local\Temp\tmp86FC.tmp

MD5 5ed3301e36e3359905df2c1d8fee55f9
SHA1 87f3dd865a35a183a95b70670837aff59acab4c1
SHA256 b6b1ccf23addd989edab37c3c63997814126559be20653e5b219bfcb0afef0f8
SHA512 5b2eaa5ad2f0cedb509b459407e0260bee6760cca7ca04f62afad6d5b2ae7dbdd19a443012e7d71476f5f6433a72d6c4b111580b7b592010c1e966155cd828a4

memory/2456-11-0x00000000020B0000-0x0000000002130000-memory.dmp

memory/2456-12-0x00000000020B0000-0x0000000002130000-memory.dmp

memory/2456-13-0x0000000000AB0000-0x0000000000ABA000-memory.dmp

memory/2456-14-0x0000000000250000-0x0000000000262000-memory.dmp

memory/2456-15-0x0000000002340000-0x000000000235A000-memory.dmp

memory/2456-16-0x0000000000660000-0x000000000066E000-memory.dmp

memory/2456-17-0x0000000002360000-0x000000000236E000-memory.dmp

memory/2456-18-0x0000000002370000-0x000000000237C000-memory.dmp

memory/2456-19-0x0000000002380000-0x0000000002394000-memory.dmp

memory/2456-20-0x0000000002390000-0x00000000023A0000-memory.dmp

memory/2456-21-0x00000000023A0000-0x00000000023B4000-memory.dmp

memory/2456-22-0x000000001AF30000-0x000000001AF3E000-memory.dmp

memory/2456-23-0x000000001AF40000-0x000000001AF5E000-memory.dmp

memory/2456-24-0x0000000000A90000-0x0000000000A9A000-memory.dmp

memory/2456-25-0x000000001AF60000-0x000000001AF8E000-memory.dmp

memory/2456-27-0x000000001BAB0000-0x000000001BBB0000-memory.dmp

memory/2456-26-0x000000001AF90000-0x000000001AFA4000-memory.dmp

memory/2456-28-0x000007FEF5A80000-0x000007FEF641D000-memory.dmp

memory/2456-29-0x00000000020B0000-0x0000000002130000-memory.dmp

memory/2456-30-0x000007FEF5A80000-0x000007FEF641D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-06 08:01

Reported

2024-01-06 08:04

Platform

win10v2004-20231215-en

Max time kernel

157s

Max time network

177s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DHCP Service = "C:\\Program Files\\DHCP Service\\dhcpsvc.exe" C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.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\a632a39ffdce2f2de984c6992d188986.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\DHCP Service\dhcpsvc.exe C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A
File opened for modification C:\Program Files\DHCP Service\dhcpsvc.exe C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe

"C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp45F3.tmp"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp60FE.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp

Files

memory/324-0-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

memory/324-1-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

memory/324-2-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

memory/324-3-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

memory/324-4-0x000000001B690000-0x000000001BB5E000-memory.dmp

memory/324-5-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

memory/324-6-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

memory/324-7-0x0000000000AE0000-0x0000000000B7C000-memory.dmp

memory/324-8-0x000000001BD10000-0x000000001BDB6000-memory.dmp

memory/324-9-0x0000000000810000-0x0000000000818000-memory.dmp

memory/324-10-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

memory/324-13-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp45F3.tmp

MD5 029e60b39959bba895979975e33b96a5
SHA1 ebd492c14ffb3733d315adc7378175a4de8d4104
SHA256 037de60417e4d3866d82505a021651fd8101ad0c4270e86a1cc3c272dde08196
SHA512 8977daaa0da4713c3802562402731d201c063385cd86728e81528a4b419f8a8302f6408e53906b69ebace2fc83b5567c2a6b6cf25958b3f73db3874909ef82bd

C:\Users\Admin\AppData\Local\Temp\tmp60FE.tmp

MD5 a1e72d32044df2250a28d62375b19f15
SHA1 f82e0131f1a1fcbf825544cd2cc25e28174c47ee
SHA256 b3e2fff6289e337bc83c056904dad620e5edc7f28ac3690ab4900f3ec90df799
SHA512 df04c1f421c3d2ed3c928e388aa068be0c3b1bd16348f2692a63c641ec6cd3b103525a8e39298566a395f863fc23a3e29cf2ae50f3e68b5ffba981241587a88b

memory/324-19-0x000000001C1B0000-0x000000001C2B0000-memory.dmp

memory/324-20-0x0000000000CE0000-0x0000000000CEA000-memory.dmp

memory/324-21-0x00000000008E0000-0x00000000008F2000-memory.dmp

memory/324-22-0x000000001CB10000-0x000000001CB2A000-memory.dmp

memory/324-23-0x0000000000BD0000-0x0000000000BDE000-memory.dmp

memory/324-24-0x000000001CB30000-0x000000001CB3E000-memory.dmp

memory/324-25-0x000000001CB40000-0x000000001CB4C000-memory.dmp

memory/324-26-0x000000001CB50000-0x000000001CB64000-memory.dmp

memory/324-27-0x00000000007F0000-0x0000000000800000-memory.dmp

memory/324-28-0x00000000008A0000-0x00000000008B4000-memory.dmp

memory/324-29-0x00000000008C0000-0x00000000008CE000-memory.dmp

memory/324-30-0x000000001CB60000-0x000000001CB7E000-memory.dmp