Malware Analysis Report

2024-08-06 14:45

Sample ID 240623-h1gfaatejc
Target client.exe
SHA256 4c6762d75166eeec117650f3168738b1a5bfcf96f5f22225828bede16269d965
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

4c6762d75166eeec117650f3168738b1a5bfcf96f5f22225828bede16269d965

Threat Level: Known bad

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

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Nanocore family

Checks whether UAC is enabled

Adds Run key to start application

Drops file in Program Files directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

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 07:12

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 07:12

Reported

2024-06-23 07:14

Platform

win7-20240611-en

Max time kernel

28s

Max time network

38s

Command Line

"C:\Users\Admin\AppData\Local\Temp\client.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\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsv.exe" C:\Users\Admin\AppData\Local\Temp\client.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\client.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\DDP Service\ddpsv.exe C:\Users\Admin\AppData\Local\Temp\client.exe N/A
File opened for modification C:\Program Files (x86)\DDP Service\ddpsv.exe C:\Users\Admin\AppData\Local\Temp\client.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\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3020 wrote to memory of 2908 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2908 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2908 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2908 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 3020 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7A8D.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7D5B.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 147.185.221.20:38177 care-somewhere.gl.at.ply.gg tcp

Files

memory/3020-0-0x0000000074861000-0x0000000074862000-memory.dmp

memory/3020-1-0x0000000074860000-0x0000000074E0B000-memory.dmp

memory/3020-2-0x0000000074860000-0x0000000074E0B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp7A8D.tmp

MD5 4b25c43c4a8a3c8ce6ed59dd27a6d5da
SHA1 39a1059ae8a14458672fa20053b9214fb0faeba7
SHA256 5b4d4a864d877a082656f01ff8fa16ad6305e63d3c0e9df37035a13ffa07d285
SHA512 50ebc2b42c5d87b6be155f7c8e950e2826db5cab4b3c895c82c1b0964774c5708a14c33b36e6292e941b2f46092fac3f3adcf4c10f9ff54308b0f6d255331dcf

C:\Users\Admin\AppData\Local\Temp\tmp7D5B.tmp

MD5 93d357e6194c8eb8d0616a9f592cc4bf
SHA1 5cc3a3d95d82cb88f65cb6dc6c188595fa272808
SHA256 a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713
SHA512 4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

memory/3020-10-0x0000000074860000-0x0000000074E0B000-memory.dmp

memory/3020-11-0x0000000074860000-0x0000000074E0B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-23 07:12

Reported

2024-06-23 07:14

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\client.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\SAAS Manager = "C:\\Program Files (x86)\\SAAS Manager\\saasmgr.exe" C:\Users\Admin\AppData\Local\Temp\client.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\client.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\SAAS Manager\saasmgr.exe C:\Users\Admin\AppData\Local\Temp\client.exe N/A
File opened for modification C:\Program Files (x86)\SAAS Manager\saasmgr.exe C:\Users\Admin\AppData\Local\Temp\client.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\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\client.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5036 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 5036 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 5036 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 5036 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 5036 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe
PID 5036 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\client.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "SAAS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5CE5.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "SAAS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5D53.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 care-somewhere.gl.at.ply.gg udp
US 147.185.221.20:38177 care-somewhere.gl.at.ply.gg tcp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 20.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 155.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 28.73.42.20.in-addr.arpa udp

Files

memory/5036-0-0x0000000075482000-0x0000000075483000-memory.dmp

memory/5036-1-0x0000000075480000-0x0000000075A31000-memory.dmp

memory/5036-2-0x0000000075480000-0x0000000075A31000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5CE5.tmp

MD5 4b25c43c4a8a3c8ce6ed59dd27a6d5da
SHA1 39a1059ae8a14458672fa20053b9214fb0faeba7
SHA256 5b4d4a864d877a082656f01ff8fa16ad6305e63d3c0e9df37035a13ffa07d285
SHA512 50ebc2b42c5d87b6be155f7c8e950e2826db5cab4b3c895c82c1b0964774c5708a14c33b36e6292e941b2f46092fac3f3adcf4c10f9ff54308b0f6d255331dcf

C:\Users\Admin\AppData\Local\Temp\tmp5D53.tmp

MD5 b5ee6d4d0a6aab49e12d44d82afc5157
SHA1 9fbe67452ca81b59802441955020086c3d163b2c
SHA256 f769b73883f96cefd35c438e8bdbe12c10a87ce11e09e4084474a85f6e4f8a10
SHA512 c4071b68c40aedd04b48bcbf4c4256e8b746474c6d4cfe680a4c0bcd61c9c4daa45d5d1e2fc8df655feba77de485258d06a81ac1a9144ed37ab9c80fbce09754

memory/5036-10-0x0000000075480000-0x0000000075A31000-memory.dmp

memory/5036-11-0x0000000075482000-0x0000000075483000-memory.dmp

memory/5036-12-0x0000000075480000-0x0000000075A31000-memory.dmp

memory/5036-13-0x0000000075480000-0x0000000075A31000-memory.dmp

memory/5036-14-0x0000000075480000-0x0000000075A31000-memory.dmp