Malware Analysis Report

2024-12-07 14:04

Sample ID 241112-nqgwyssajn
Target e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe
SHA256 ff84808d90807f07f071305812ebf2cb695b8046fee19f2148b74a5b7e0f3c78
Tags
nanocore discovery 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

ff84808d90807f07f071305812ebf2cb695b8046fee19f2148b74a5b7e0f3c78

Threat Level: Known bad

The file e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 11:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 11:35

Reported

2024-11-12 11:37

Platform

win7-20240903-en

Max time kernel

112s

Max time network

116s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

nanocore

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe" C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.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:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2800 set thread context of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

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\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2060 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 2060 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 2060 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 2060 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2800 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe

"C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe"

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

"C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"

Network

Country Destination Domain Proto
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp

Files

memory/2060-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

memory/2060-1-0x0000000000120000-0x000000000018E000-memory.dmp

memory/2060-2-0x0000000074BC0000-0x00000000752AE000-memory.dmp

memory/2060-3-0x0000000001F60000-0x0000000001F9C000-memory.dmp

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

MD5 5e7fb2d6c4d11f75ef1cd1f9c1cb504f
SHA1 b778aae186a03be390ff6834cfeab93048b02294
SHA256 3027a030e17354d9ab60c3c11a1cbda5d82f7b892ab142c4c64788b3e47adf4b
SHA512 a16d12bc0573291fabaf6b80b0185d3dd73192c8a01e77cacfadb1bf26be04eecc40c4ec06574cabe38c7bb6b96d00a741ea6d3ef66628b66054016b3078fca9

memory/2800-13-0x0000000074BC0000-0x00000000752AE000-memory.dmp

memory/2800-14-0x0000000074BC0000-0x00000000752AE000-memory.dmp

memory/2800-12-0x0000000000C40000-0x0000000000CAE000-memory.dmp

memory/2060-15-0x0000000074BC0000-0x00000000752AE000-memory.dmp

memory/2732-16-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2732-18-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-20-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-26-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-33-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-31-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2732-35-0x0000000000840000-0x000000000084A000-memory.dmp

memory/2732-36-0x0000000000AA0000-0x0000000000ABE000-memory.dmp

memory/2732-37-0x0000000000850000-0x000000000085A000-memory.dmp

memory/2800-38-0x0000000074BC0000-0x00000000752AE000-memory.dmp

memory/2800-39-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 11:35

Reported

2024-11-12 11:37

Platform

win10v2004-20241007-en

Max time kernel

114s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe" C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.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:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3492 set thread context of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

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\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1428 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 1428 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 1428 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 3492 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe

"C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe"

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

"C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
FR 178.32.224.116:46218 tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp
FR 178.32.224.116:46218 tcp

Files

memory/1428-0-0x000000007457E000-0x000000007457F000-memory.dmp

memory/1428-1-0x0000000000B60000-0x0000000000BCE000-memory.dmp

memory/1428-2-0x0000000005AF0000-0x0000000006094000-memory.dmp

memory/1428-3-0x0000000005620000-0x00000000056B2000-memory.dmp

memory/1428-4-0x00000000055D0000-0x00000000055DA000-memory.dmp

memory/1428-5-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/1428-6-0x00000000057A0000-0x00000000057DC000-memory.dmp

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

MD5 6b960fdbb39fc5d12d13afc4eaa90ce0
SHA1 83939c12746d3ef7a8e23f126116b73432836a06
SHA256 df62652c8b85941919e3d337ceef7b441341e73ccb71adb6fa6c339936d0652d
SHA512 368b8e4f5362b8241913c7cb9a033c410aa0efee995fb97444b655e7fed9fabf8956570ac411642dba84164817e8adc576b9c55f9dcf6ba97d765f563b2fae4d

memory/1428-20-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/3492-21-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/3492-22-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/1560-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1560-25-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1560-24-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1560-27-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/1560-28-0x00000000051E0000-0x000000000527C000-memory.dmp

memory/1560-30-0x00000000051A0000-0x00000000051AA000-memory.dmp

memory/1560-31-0x00000000051B0000-0x00000000051CE000-memory.dmp

memory/1560-32-0x0000000006040000-0x000000000604A000-memory.dmp

memory/3492-33-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/3492-35-0x0000000074570000-0x0000000074D20000-memory.dmp

memory/1560-36-0x0000000074570000-0x0000000074D20000-memory.dmp