Malware Analysis Report

2024-08-06 14:45

Sample ID 240623-qlstrssala
Target kitty.exe
SHA256 bffc649f9caaeb25d0ee5c19cebc71a5b2494271255a1e143bc0849494ae9cd2
Tags
nanocore evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

bffc649f9caaeb25d0ee5c19cebc71a5b2494271255a1e143bc0849494ae9cd2

Threat Level: Known bad

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

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Checks whether UAC is enabled

Adds Run key to start application

Drops file in Program Files directory

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-23 13:21

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-23 13:21

Reported

2024-06-23 13:23

Platform

win7-20240508-en

Max time kernel

143s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\kitty.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\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe" C:\Users\Admin\AppData\Local\Temp\kitty.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\kitty.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\ARP Host\arphost.exe C:\Users\Admin\AppData\Local\Temp\kitty.exe N/A
File opened for modification C:\Program Files (x86)\ARP Host\arphost.exe C:\Users\Admin\AppData\Local\Temp\kitty.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2400 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 2400 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2868.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2914.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp

Files

memory/2400-0-0x0000000074DA1000-0x0000000074DA2000-memory.dmp

memory/2400-1-0x0000000074DA0000-0x000000007534B000-memory.dmp

memory/2400-2-0x0000000074DA0000-0x000000007534B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp2868.tmp

MD5 1fb868da8972c98303d5b8a1640a3052
SHA1 dff1a9e1f187ed867895078523b569fbbac825c3
SHA256 8e74325e8c8f5432a80a71efc90ba52ad493c65a9ea258c46b5a0e8ba9e113aa
SHA512 b9a3a07f2404c119cc1e392ba9605d269e6f9b9d20ec202abeefe302ef2ef70c74ed0c04a5ba10a750ab84cbde4d35aafbe8cfb448abd089d3573e624539fc4e

C:\Users\Admin\AppData\Local\Temp\tmp2914.tmp

MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

memory/2400-10-0x0000000074DA0000-0x000000007534B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-23 13:21

Reported

2024-06-23 13:23

Platform

win10v2004-20240508-en

Max time kernel

144s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\kitty.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\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\LAN Monitor = "C:\\Program Files (x86)\\LAN Monitor\\lanmon.exe" C:\Users\Admin\AppData\Local\Temp\kitty.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\kitty.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\LAN Monitor\lanmon.exe C:\Users\Admin\AppData\Local\Temp\kitty.exe N/A
File opened for modification C:\Program Files (x86)\LAN Monitor\lanmon.exe C:\Users\Admin\AppData\Local\Temp\kitty.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1360 wrote to memory of 4172 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 1360 wrote to memory of 4172 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 1360 wrote to memory of 4172 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 1360 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 1360 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe
PID 1360 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\kitty.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4C6A.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4CC9.tmp"

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 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
N/A 127.0.0.1:1608 tcp
N/A 127.0.0.1:1608 tcp

Files

memory/1360-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

memory/1360-1-0x0000000074EA0000-0x0000000075451000-memory.dmp

memory/1360-2-0x0000000074EA0000-0x0000000075451000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp4C6A.tmp

MD5 1fb868da8972c98303d5b8a1640a3052
SHA1 dff1a9e1f187ed867895078523b569fbbac825c3
SHA256 8e74325e8c8f5432a80a71efc90ba52ad493c65a9ea258c46b5a0e8ba9e113aa
SHA512 b9a3a07f2404c119cc1e392ba9605d269e6f9b9d20ec202abeefe302ef2ef70c74ed0c04a5ba10a750ab84cbde4d35aafbe8cfb448abd089d3573e624539fc4e

C:\Users\Admin\AppData\Local\Temp\tmp4CC9.tmp

MD5 ecf141ec69adbb2a5c3dd5c85cd0ec39
SHA1 0ad224632fa58d103142c05c44a142f3d7208291
SHA256 64d8cfa0b25afee269839cd5fc0b66e5643bc318e5f4d3ce1b9dba2456c83316
SHA512 4821b062d6672f3ed07833cfd7ab9abb533850b451b632d781fbfad8238fcd5ac52855f1f239547ae2d1c1477959f022430302a75cfd3c19a8473af72a1ef201

memory/1360-10-0x0000000074EA0000-0x0000000075451000-memory.dmp

memory/1360-11-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

memory/1360-12-0x0000000074EA0000-0x0000000075451000-memory.dmp

memory/1360-13-0x0000000074EA0000-0x0000000075451000-memory.dmp