nanocore | 4e813f14b451daf345397cfc7c5dd0cded2a6a97c0ed3aae89bd2642f4d17c31

General

Target

HDXC~9337636PO-EXT-P88.exe
Size

1.0MB
MD5

8b6071a9344b21469ca5a4b62a0a855b
SHA1

d255b5fd2b01cca939ce9c2020461afbfe098c18
SHA256

2b4d871271fbc3f9487d370b9315bca0b9ca44ee81ecce6b89a57b31f7cf4598
SHA512

a3508e067982550c8575ca768797720456b5e290fa74e62c777ab190b6c9bf35b5255e071cc054fec9dbfea5b43eac9959db77eaca71bf286d05dfd1a8191a18
SSDEEP

12288:SWw6Htx8pRqpu+Ur5ge/S//f3V5SpsW4rmCac10lPAUELfJGERT0/CSVe:PzoD+BeOf2psW4rmFc1TLfb0/CSVe

Score

10^/10

nanocore evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

3654.ddns.net:3654

10.9.0.118:3654

Mutex

08b979e3-5178-4508-8fee-8691cecb4a52

Attributes

activate_away_mode
true
backup_connection_host
10.9.0.118
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-04-20T00:01:40.250540136Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3654
default_group
Nan
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
08b979e3-5178-4508-8fee-8691cecb4a52
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
3654.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

HDXC~9337636PO-EXT-P88.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	HDXC~9337636PO-EXT-P88.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2860 powershell.exe

pid	process
2860	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

regsvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	regsvcs.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

HDXC~9337636PO-EXT-P88.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	HDXC~9337636PO-EXT-P88.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	HDXC~9337636PO-EXT-P88.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HDXC~9337636PO-EXT-P88.exe

description pid process target process

PID 2232 set thread context of 2836 2232 HDXC~9337636PO-EXT-P88.exe regsvcs.exe

description	pid	process	target process
PID 2232 set thread context of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

regsvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	regsvcs.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	regsvcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

1728 schtasks.exe
2084 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeregsvcs.exe

pid process

2860 powershell.exe
2836 regsvcs.exe
2836 regsvcs.exe
2836 regsvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regsvcs.exe

pid process

2836 regsvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeregsvcs.exe

description pid process

Token: SeDebugPrivilege 2860 powershell.exe
Token: SeDebugPrivilege 2836 regsvcs.exe

pid	process
1728	schtasks.exe
2084	schtasks.exe

pid	process
2860	powershell.exe
2836	regsvcs.exe
2836	regsvcs.exe
2836	regsvcs.exe

pid	process
2836	regsvcs.exe

description	pid	process
Token: SeDebugPrivilege	2860	powershell.exe
Token: SeDebugPrivilege	2836	regsvcs.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

HDXC~9337636PO-EXT-P88.exeregsvcs.exe

description	pid	process	target process
PID 2232 wrote to memory of 2860	2232	HDXC~9337636PO-EXT-P88.exe	powershell.exe
PID 2232 wrote to memory of 2860	2232	HDXC~9337636PO-EXT-P88.exe	powershell.exe
PID 2232 wrote to memory of 2860	2232	HDXC~9337636PO-EXT-P88.exe	powershell.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2836	2232	HDXC~9337636PO-EXT-P88.exe	regsvcs.exe
PID 2232 wrote to memory of 2132	2232	HDXC~9337636PO-EXT-P88.exe	WerFault.exe
PID 2232 wrote to memory of 2132	2232	HDXC~9337636PO-EXT-P88.exe	WerFault.exe
PID 2232 wrote to memory of 2132	2232	HDXC~9337636PO-EXT-P88.exe	WerFault.exe
PID 2836 wrote to memory of 1728	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 1728	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 1728	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 1728	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 2084	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 2084	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 2084	2836	regsvcs.exe	schtasks.exe
PID 2836 wrote to memory of 2084	2836	regsvcs.exe	schtasks.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

HDXC~9337636PO-EXT-P88.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	HDXC~9337636PO-EXT-P88.exe

C:\Users\Admin\AppData\Local\Temp\HDXC~9337636PO-EXT-P88.exe
"C:\Users\Admin\AppData\Local\Temp\HDXC~9337636PO-EXT-P88.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2232

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\HDXC~9337636PO-EXT-P88.exe" -Force
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2860

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2836

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE946.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:1728

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE9E3.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2084

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2232 -s 844
2⤵
PID:2132

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE946.tmp
Filesize
1KB

MD5
2511f5150c45c9c6141788c8be9a44bd

SHA1
1e468ad16380d3b6a7268d7af2482f6259c8651d

SHA256
b95602df2c09914384788c97c9bca318fc50bb443de39b13fb2e45856a2fe065

SHA512
a638b54fbe899780f6dcee8a1859085bcfd2f2195c6db092811b8019c5f4969457ba80b80e3a31c16f4bc964e3c9afbcdf6141c3a2e8953ad209838de8ca1a73

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE9E3.tmp
Filesize
1KB

MD5
447ab194ab36cb1d20078d80e502b1b2

SHA1
a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0

SHA256
8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5

SHA512
49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

Download Submit
memory/2232-1-0x0000000000370000-0x00000000003A8000-memory.dmp

Filesize
224KB

Download
memory/2232-2-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2232-3-0x000000001B480000-0x000000001B4B8000-memory.dmp

Filesize
224KB

Download
memory/2232-4-0x0000000002070000-0x00000000020FC000-memory.dmp

Filesize
560KB

Download
memory/2232-0-0x000007FEF62D3000-0x000007FEF62D4000-memory.dmp

Filesize
4KB

Download
memory/2232-34-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2232-33-0x000007FEF62D3000-0x000007FEF62D4000-memory.dmp

Filesize
4KB

Download
memory/2836-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2836-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-30-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/2836-31-0x00000000004E0000-0x00000000004FE000-memory.dmp

Filesize
120KB

Download
memory/2836-32-0x0000000000580000-0x000000000058A000-memory.dmp

Filesize
40KB

Download
memory/2836-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2860-21-0x000000001B600000-0x000000001B8E2000-memory.dmp

Filesize
2.9MB

Download
memory/2860-22-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads