Malware Analysis Report

2025-06-16 06:19

Sample ID 240106-mdr1qadgbp
Target abb84f7bbcc5585765153cd445c8c07d.exe
SHA256 149e9d049c83abff4843e0fab7f6cde552aef61e32a53d61e76f6c5adc3db25f
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

149e9d049c83abff4843e0fab7f6cde552aef61e32a53d61e76f6c5adc3db25f

Threat Level: Known bad

The file abb84f7bbcc5585765153cd445c8c07d.exe was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Creates scheduled task(s)

Kills process with taskkill

Runs ping.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-06 10:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-06 10:21

Reported

2024-01-06 10:23

Platform

win7-20231129-en

Max time kernel

0s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.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\Tayz Woofer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Adds Run key to start application

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

Drops file in Program Files directory

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

Enumerates physical storage devices

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

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2076 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2076 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2076 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2076 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2076 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2076 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2076 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2076 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2172 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2172 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2172 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1585.tmp"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1526.tmp"

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

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

C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

"C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe"

C:\Windows\system32\PING.EXE

ping -n 1 -w 3000 1.1.1.1

C:\Windows\system32\taskkill.exe

taskkill /f /im "SecurityHealthService.exe"

C:\Windows\system32\cmd.exe

"cmd.exe" /C taskkill /f /im "SecurityHealthService.exe" & ping -n 1 -w 3000 1.1.1.1 & type nul > "C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe" & del /f /q "C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /delete /f /tn "TCP Service Task"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /delete /f /tn "TCP Service"

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

Files

memory/2172-17-0x000007FEF5140000-0x000007FEF5ADD000-memory.dmp

memory/2172-18-0x000007FEF5140000-0x000007FEF5ADD000-memory.dmp

memory/2172-20-0x00000000020A0000-0x0000000002120000-memory.dmp

memory/2172-30-0x00000000002B0000-0x00000000002C2000-memory.dmp

memory/2172-39-0x0000000002240000-0x000000000225E000-memory.dmp

memory/2172-42-0x00000000023B0000-0x00000000023C4000-memory.dmp

memory/2172-43-0x000000001BF30000-0x000000001C030000-memory.dmp

memory/2172-41-0x0000000002380000-0x00000000023AE000-memory.dmp

memory/2172-44-0x000000001BF30000-0x000000001C030000-memory.dmp

memory/2172-40-0x00000000002E0000-0x00000000002EA000-memory.dmp

memory/2172-38-0x0000000002230000-0x000000000223E000-memory.dmp

memory/2172-37-0x0000000002220000-0x0000000002234000-memory.dmp

memory/2172-36-0x0000000002090000-0x00000000020A0000-memory.dmp

memory/2172-35-0x0000000002080000-0x0000000002094000-memory.dmp

memory/2172-34-0x0000000002070000-0x000000000207C000-memory.dmp

memory/2172-33-0x0000000000830000-0x000000000083E000-memory.dmp

memory/2172-32-0x0000000000290000-0x000000000029E000-memory.dmp

memory/2172-31-0x0000000000810000-0x000000000082A000-memory.dmp

memory/2172-29-0x0000000000800000-0x000000000080A000-memory.dmp

memory/2172-28-0x00000000020A0000-0x0000000002120000-memory.dmp

memory/2172-19-0x00000000020A0000-0x0000000002120000-memory.dmp

memory/1804-14-0x000000013F340000-0x000000013F3E3000-memory.dmp

memory/2076-6-0x0000000002A70000-0x0000000002B13000-memory.dmp

\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/1804-47-0x000000013F340000-0x000000013F3E3000-memory.dmp

memory/2172-54-0x00000000020A0000-0x0000000002120000-memory.dmp

memory/2172-55-0x000007FEF5140000-0x000007FEF5ADD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-06 10:21

Reported

2024-01-06 10:23

Platform

win10v2004-20231222-en

Max time kernel

0s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

Signatures

Enumerates physical storage devices

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

Processes

C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

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

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

C:\Windows\SYSTEM32\schtasks.exe

"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4D08.tmp"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4CD8.tmp"

C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

"C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 22.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
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 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 17.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
GB 88.221.134.32:80 tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp

Files

memory/4168-10-0x00007FF64B5A0000-0x00007FF64B643000-memory.dmp

memory/4768-18-0x000000001C3D0000-0x000000001C89E000-memory.dmp

memory/4768-20-0x00007FFF110E0000-0x00007FFF11A81000-memory.dmp

memory/4768-22-0x0000000001980000-0x0000000001990000-memory.dmp

memory/4768-23-0x000000001BEE0000-0x000000001BEE8000-memory.dmp

memory/4768-21-0x000000001CA50000-0x000000001CAF6000-memory.dmp

memory/4768-19-0x000000001BE30000-0x000000001BECC000-memory.dmp

memory/4768-24-0x0000000001980000-0x0000000001990000-memory.dmp

memory/4768-17-0x00007FFF110E0000-0x00007FFF11A81000-memory.dmp

memory/4768-33-0x000000001D550000-0x000000001D55A000-memory.dmp

memory/4768-38-0x000000001D770000-0x000000001D77C000-memory.dmp

memory/4768-43-0x000000001D8B0000-0x000000001D8CE000-memory.dmp

memory/4768-45-0x000000001D900000-0x000000001D92E000-memory.dmp

memory/4768-47-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-46-0x000000001D930000-0x000000001D944000-memory.dmp

memory/4768-49-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-48-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-44-0x000000001CB10000-0x000000001CB1A000-memory.dmp

memory/4768-42-0x000000001CCA0000-0x000000001CCAE000-memory.dmp

memory/4768-41-0x000000001CB90000-0x000000001CBA4000-memory.dmp

memory/4768-40-0x000000001CB70000-0x000000001CB80000-memory.dmp

memory/4768-39-0x000000001D8A0000-0x000000001D8B4000-memory.dmp

memory/4768-37-0x000000001D760000-0x000000001D76E000-memory.dmp

memory/4768-36-0x000000001D4D0000-0x000000001D4DE000-memory.dmp

memory/4768-35-0x000000001D880000-0x000000001D89A000-memory.dmp

memory/4768-34-0x000000001CBA0000-0x000000001CBB2000-memory.dmp

memory/4768-32-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-51-0x000000001E540000-0x000000001E5A2000-memory.dmp

memory/4768-53-0x00007FFF110E0000-0x00007FFF11A81000-memory.dmp

memory/4768-54-0x00007FFF110E0000-0x00007FFF11A81000-memory.dmp

memory/4768-55-0x0000000001980000-0x0000000001990000-memory.dmp

memory/4768-56-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-57-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-59-0x000000001CFD0000-0x000000001D0D0000-memory.dmp

memory/4768-58-0x000000001CFD0000-0x000000001D0D0000-memory.dmp