nanocore | 58bff9dfeb9660c884056b2ffd90e796adbc9e6e6d5292f39609b153c4e2acc0

General

Target

6575D4BA39394CD5951B20909039EBD1.exe
Size

659KB
MD5

6575d4ba39394cd5951b20909039ebd1
SHA1

c2ad0eb283b54e0cb47234e4d9373ba58c25161b
SHA256

58bff9dfeb9660c884056b2ffd90e796adbc9e6e6d5292f39609b153c4e2acc0
SHA512

946b35a0dffb071a821103747701add3c498d1eaecebceef7fed52bd99deb84b8161faaf0e55df639b950d01b91f81704d4aecac24ea82588b2a7ca2068ea699
SSDEEP

12288:mWMsHf5WeLAfMTxdXwZMoSO7ilnd28wu/ZTAx9oxyTJOYfollt:nf5W5EdxhO7ild2SxTkgGFfQl

Score

10^/10

nanocore execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

december2nd.ddns.net:65024

december2n.duckdns.org:65024

Mutex

2c009a56-c28c-48f4-8875-acf9e1222e9f

Attributes

activate_away_mode
false
backup_connection_host
december2n.duckdns.org
backup_dns_server
buffer_size
65535
build_time
2024-02-17T09:12:36.211032636Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
65024
default_group
NO GREE
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
2c009a56-c28c-48f4-8875-acf9e1222e9f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
december2nd.ddns.net
primary_dns_server
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
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

2256 powershell.exe
2868 powershell.exe

pid	process
2256	powershell.exe
2868	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\NAS Host = "C:\\Program Files (x86)\\NAS Host\\nashost.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

6575D4BA39394CD5951B20909039EBD1.exe

description pid process target process

PID 3028 set thread context of 2460 3028 6575D4BA39394CD5951B20909039EBD1.exe RegSvcs.exe

description	pid	process	target process
PID 3028 set thread context of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\NAS Host\nashost.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\NAS Host\nashost.exe	RegSvcs.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

3060 schtasks.exe
2232 schtasks.exe
2800 schtasks.exe

pid	process
3060	schtasks.exe
2232	schtasks.exe
2800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

6575D4BA39394CD5951B20909039EBD1.exepowershell.exepowershell.exeRegSvcs.exe

pid	process
3028	6575D4BA39394CD5951B20909039EBD1.exe
3028	6575D4BA39394CD5951B20909039EBD1.exe
3028	6575D4BA39394CD5951B20909039EBD1.exe
3028	6575D4BA39394CD5951B20909039EBD1.exe
3028	6575D4BA39394CD5951B20909039EBD1.exe
3028	6575D4BA39394CD5951B20909039EBD1.exe
3028	6575D4BA39394CD5951B20909039EBD1.exe
2868	powershell.exe
2256	powershell.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
2460	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

2460 RegSvcs.exe

pid	process
2460	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

6575D4BA39394CD5951B20909039EBD1.exepowershell.exepowershell.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3028	6575D4BA39394CD5951B20909039EBD1.exe
Token: SeDebugPrivilege	2868	powershell.exe
Token: SeDebugPrivilege	2256	powershell.exe
Token: SeDebugPrivilege	2460	RegSvcs.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

6575D4BA39394CD5951B20909039EBD1.exeRegSvcs.exe

description	pid	process	target process
PID 3028 wrote to memory of 2256	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2256	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2256	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2256	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2868	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2868	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2868	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 2868	3028	6575D4BA39394CD5951B20909039EBD1.exe	powershell.exe
PID 3028 wrote to memory of 3060	3028	6575D4BA39394CD5951B20909039EBD1.exe	schtasks.exe
PID 3028 wrote to memory of 3060	3028	6575D4BA39394CD5951B20909039EBD1.exe	schtasks.exe
PID 3028 wrote to memory of 3060	3028	6575D4BA39394CD5951B20909039EBD1.exe	schtasks.exe
PID 3028 wrote to memory of 3060	3028	6575D4BA39394CD5951B20909039EBD1.exe	schtasks.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 3028 wrote to memory of 2460	3028	6575D4BA39394CD5951B20909039EBD1.exe	RegSvcs.exe
PID 2460 wrote to memory of 2232	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2232	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2232	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2232	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2800	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2800	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2800	2460	RegSvcs.exe	schtasks.exe
PID 2460 wrote to memory of 2800	2460	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\6575D4BA39394CD5951B20909039EBD1.exe
"C:\Users\Admin\AppData\Local\Temp\6575D4BA39394CD5951B20909039EBD1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3028

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6575D4BA39394CD5951B20909039EBD1.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2256

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BGhfFrEN.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2868

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BGhfFrEN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp737B.tmp"
2⤵
- Creates scheduled task(s)
PID:3060

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:2460

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp76B6.tmp"
3⤵
- Creates scheduled task(s)
PID:2232

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7782.tmp"
3⤵
- Creates scheduled task(s)
PID:2800

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp737B.tmp
Filesize
1KB

MD5
91263b3362c02a96e82761f6716c81fa

SHA1
6780376fb657a4aa2e4ec43af32193c4c297367e

SHA256
1a8292ae70faae4903d6a62dc15140f067ab31e65ad0ff8cf1a86713a1cc6534

SHA512
2a678d57d25a1f2836f4e68405ddefe59856ed3cbf757dc752200cd7d4fefcc243486ea626459b18983338bb54cf039eafba6b9b63920b7f69866cfa42447baf

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp76B6.tmp
Filesize
1KB

MD5
8cad1b41587ced0f1e74396794f31d58

SHA1
11054bf74fcf5e8e412768035e4dae43aa7b710f

SHA256
3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

SHA512
99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7782.tmp
Filesize
1KB

MD5
9f554f602c22cfc20079e966d177fadb

SHA1
789baa3425849bf239e47c6bcf352e6693a8c337

SHA256
4c760d5fe0c06cf4bf554170870f41181c61a217c37eb826903094dda86dd1f1

SHA512
b83e3e97dbe38ec4c64d9bef65e2521416f2d7434d78d05e66f729a2e0fbfea3f9bc6f6c4abaf76555af89a9565dfc0853d99067be9042dd66ed6246696eecbb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4YB6GUJLTOB76BQBJP3M.temp
Filesize
7KB

MD5
c41a6a05e358ba9a0e7cf422ccb837e0

SHA1
cc00a91491ea4c82c64d0da81f89d2ac8d17ceac

SHA256
9ee1989bff90eeac5d5cc620af8d8af0da5daa6e1f692358a031526d2babb163

SHA512
796238308392aee12fb0161cdfadd2852c5fda5595c1a3564476f09b1b5818ae07e2b872681f383205e85c927c37833842727d541a55d6aecf042683869d4e8a

Download Submit
memory/2460-30-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2460-53-0x0000000002100000-0x0000000002110000-memory.dmp

Filesize
64KB

Download
memory/2460-55-0x0000000002130000-0x000000000213E000-memory.dmp

Filesize
56KB

Download
memory/2460-54-0x0000000002110000-0x0000000002124000-memory.dmp

Filesize
80KB

Download
memory/2460-51-0x00000000020E0000-0x00000000020EC000-memory.dmp

Filesize
48KB

Download
memory/2460-20-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-24-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-29-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-31-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-50-0x00000000020D0000-0x00000000020DE000-memory.dmp

Filesize
56KB

Download
memory/2460-52-0x00000000020F0000-0x0000000002104000-memory.dmp

Filesize
80KB

Download
memory/2460-22-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-26-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2460-49-0x0000000002080000-0x0000000002092000-memory.dmp

Filesize
72KB

Download
memory/2460-57-0x0000000004400000-0x0000000004414000-memory.dmp

Filesize
80KB

Download
memory/2460-56-0x0000000002180000-0x00000000021AE000-memory.dmp

Filesize
184KB

Download
memory/2460-40-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/2460-41-0x0000000000490000-0x000000000049C000-memory.dmp

Filesize
48KB

Download
memory/2460-42-0x00000000007F0000-0x000000000080E000-memory.dmp

Filesize
120KB

Download
memory/2460-43-0x0000000000810000-0x000000000081A000-memory.dmp

Filesize
40KB

Download
memory/2460-46-0x0000000000B20000-0x0000000000B32000-memory.dmp

Filesize
72KB

Download
memory/2460-47-0x0000000002040000-0x000000000205A000-memory.dmp

Filesize
104KB

Download
memory/2460-48-0x0000000002060000-0x000000000206E000-memory.dmp

Filesize
56KB

Download
memory/3028-19-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/3028-32-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/3028-0-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/3028-6-0x0000000005190000-0x000000000520C000-memory.dmp

Filesize
496KB

Download
memory/3028-5-0x0000000000AB0000-0x0000000000AC6000-memory.dmp

Filesize
88KB

Download
memory/3028-4-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

Filesize
64KB

Download
memory/3028-3-0x0000000000980000-0x000000000099E000-memory.dmp

Filesize
120KB

Download
memory/3028-2-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/3028-1-0x0000000000E90000-0x0000000000F3C000-memory.dmp

Filesize
688KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads