nanocore | b4a76ec2287a65963ea978ae7911b8c42c3411a21c995463985599d975e9960c

Analysis

max time kernel
122s
max time network
143s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 09:31

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General

Target

41d27d71597c9d1163fb58a816223962.exe
Size

585KB
MD5

41d27d71597c9d1163fb58a816223962
SHA1

2ae197a2724967fb0ae77ee0c20d95d354b9e5cb
SHA256

b4a76ec2287a65963ea978ae7911b8c42c3411a21c995463985599d975e9960c
SHA512

555aa48eaa46f83933e34c6e8ecaf79c8f1756fb9de79181e4132bc2d02c5789abba90458ad347a374f34fc829f83b36d6666f64a657bf7e99ca5cb9aac2e1a0
SSDEEP

12288:2aYEnxStMSe+LQMNQ7ZQhIyOQSNSY2CNZ+TB29JvNgRh:J/nxSiSCMNQFwt3Jx8gB29Jv2

Score

10^/10

nanocore evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

2023endofyear.duckdns.org:15170

127.0.0.1:15170

Mutex

68e7ea47-3f3c-4af7-9707-6d09d0468009

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-12-29T09:19:37.611227236Z
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
15170
default_group
GLOBAL
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
68e7ea47-3f3c-4af7-9707-6d09d0468009
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
2023endofyear.duckdns.org
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
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

2708 powershell.exe
2524 powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

41d27d71597c9d1163fb58a816223962.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe"	41d27d71597c9d1163fb58a816223962.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

41d27d71597c9d1163fb58a816223962.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 41d27d71597c9d1163fb58a816223962.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

41d27d71597c9d1163fb58a816223962.exe

description pid process target process

PID 3040 set thread context of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	41d27d71597c9d1163fb58a816223962.exe

description	pid	process	target process
PID 3040 set thread context of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe

Drops file in Program Files directory 2 IoCs

Processes:

41d27d71597c9d1163fb58a816223962.exe

description	ioc	process
File created	C:\Program Files (x86)\TCP Service\tcpsv.exe	41d27d71597c9d1163fb58a816223962.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsv.exe	41d27d71597c9d1163fb58a816223962.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

2752 schtasks.exe
2320 schtasks.exe
3068 schtasks.exe

pid	process
2752	schtasks.exe
2320	schtasks.exe
3068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exe41d27d71597c9d1163fb58a816223962.exe

pid	process
2708	powershell.exe
2524	powershell.exe
2592	41d27d71597c9d1163fb58a816223962.exe
2592	41d27d71597c9d1163fb58a816223962.exe
2592	41d27d71597c9d1163fb58a816223962.exe
2592	41d27d71597c9d1163fb58a816223962.exe
2592	41d27d71597c9d1163fb58a816223962.exe
2592	41d27d71597c9d1163fb58a816223962.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

41d27d71597c9d1163fb58a816223962.exe

pid process

2592 41d27d71597c9d1163fb58a816223962.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exe41d27d71597c9d1163fb58a816223962.exe

description pid process

Token: SeDebugPrivilege 2708 powershell.exe
Token: SeDebugPrivilege 2524 powershell.exe
Token: SeDebugPrivilege 2592 41d27d71597c9d1163fb58a816223962.exe

pid	process
2592	41d27d71597c9d1163fb58a816223962.exe

description	pid	process
Token: SeDebugPrivilege	2708	powershell.exe
Token: SeDebugPrivilege	2524	powershell.exe
Token: SeDebugPrivilege	2592	41d27d71597c9d1163fb58a816223962.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

41d27d71597c9d1163fb58a816223962.exe41d27d71597c9d1163fb58a816223962.exe

description	pid	process	target process
PID 3040 wrote to memory of 2708	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2708	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2708	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2708	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2524	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2524	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2524	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 2524	3040	41d27d71597c9d1163fb58a816223962.exe	powershell.exe
PID 3040 wrote to memory of 3068	3040	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 3040 wrote to memory of 3068	3040	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 3040 wrote to memory of 3068	3040	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 3040 wrote to memory of 3068	3040	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 3040 wrote to memory of 2592	3040	41d27d71597c9d1163fb58a816223962.exe	41d27d71597c9d1163fb58a816223962.exe
PID 2592 wrote to memory of 2752	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2752	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2752	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2752	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2320	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2320	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2320	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe
PID 2592 wrote to memory of 2320	2592	41d27d71597c9d1163fb58a816223962.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe
"C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3040

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\41d27d71597c9d1163fb58a816223962.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2708

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dsiayzgxX.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2524

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dsiayzgxX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4366.tmp"
2⤵
- Creates scheduled task(s)
PID:3068

C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe
"C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe"
2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4588.tmp"
3⤵
- Creates scheduled task(s)
PID:2752

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmp"
3⤵
- Creates scheduled task(s)
PID:2320

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4366.tmp
Filesize
1KB

MD5
dd41a55e91d30abaebed8fb7813de17f

SHA1
80e80df50fde261dcad2ad1c538c40a3356b6839

SHA256
7b7e970d4e04fa4812cf034406b8510e63296758f82bc24ec5c0a0c60bfd3376

SHA512
b2ffb984220e4b6c93a714c9c1fb7d9ed6e707f7b4485d8042666edcec8a0f6310e1008155220781426fb9f03ad71a35921fa3f36583e01ec4d3a62a310f1afb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4588.tmp
Filesize
1KB

MD5
05589205dc8e59621292cc8574379849

SHA1
560d6d90ca08f886d81f591e737aa7e8e8dd0b78

SHA256
183ea387a9a8ff41d986ee844f36508ff674eaf86e287ea81ee4725454dde0fd

SHA512
0ec8548b36e548c395797d96777a935c2ab1824dd0327a5eec04c0c118e444aff735b76579940685b09bbf69469bea9fc08c07aef3b6b63f1b72da446ca3d394

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmp
Filesize
1KB

MD5
93fc3117767507c9889abd12dc667d22

SHA1
1096e4cfa0c35756e3c3fb866c1e4c1e59115df9

SHA256
684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a

SHA512
e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize
7KB

MD5
e4e55e4e894caaaed4bd81b513b97086

SHA1
709af8c3741ea24328bdc0fbd982d073f80f96d3

SHA256
c953aa3ae83c48bd5f0752020f9100bc95d28f7d44d9bf0c0a09355e0f4c8eb2

SHA512
45e46a5249699fbbbd1773da34933386ced437ef39da6e5c19771ee2c097a513add674405cb473421b5244ead920ed9dafff168bd997bb9bcfe6b6f0c229b5ab

Download Submit
memory/2592-19-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-47-0x0000000002210000-0x000000000221E000-memory.dmp

Filesize
56KB

Download
memory/2592-56-0x00000000043C0000-0x00000000043D4000-memory.dmp

Filesize
80KB

Download
memory/2592-55-0x0000000004ED0000-0x0000000004EFE000-memory.dmp

Filesize
184KB

Download
memory/2592-54-0x00000000043A0000-0x00000000043AE000-memory.dmp

Filesize
56KB

Download
memory/2592-53-0x0000000004380000-0x0000000004394000-memory.dmp

Filesize
80KB

Download
memory/2592-25-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-28-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-30-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-29-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-52-0x0000000004370000-0x0000000004380000-memory.dmp

Filesize
64KB

Download
memory/2592-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-21-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-23-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-51-0x0000000002260000-0x0000000002274000-memory.dmp

Filesize
80KB

Download
memory/2592-50-0x0000000002250000-0x000000000225C000-memory.dmp

Filesize
48KB

Download
memory/2592-39-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/2592-40-0x00000000004A0000-0x00000000004AC000-memory.dmp

Filesize
48KB

Download
memory/2592-41-0x0000000000710000-0x000000000072E000-memory.dmp

Filesize
120KB

Download
memory/2592-42-0x0000000000B30000-0x0000000000B3A000-memory.dmp

Filesize
40KB

Download
memory/2592-45-0x0000000000B90000-0x0000000000BA2000-memory.dmp

Filesize
72KB

Download
memory/2592-46-0x0000000002160000-0x000000000217A000-memory.dmp

Filesize
104KB

Download
memory/2592-49-0x0000000002240000-0x000000000224E000-memory.dmp

Filesize
56KB

Download
memory/2592-48-0x0000000002230000-0x0000000002242000-memory.dmp

Filesize
72KB

Download
memory/3040-5-0x0000000000580000-0x000000000058C000-memory.dmp

Filesize
48KB

Download
memory/3040-1-0x0000000000BA0000-0x0000000000C38000-memory.dmp

Filesize
608KB

Download
memory/3040-2-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-31-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/3040-3-0x0000000000430000-0x0000000000444000-memory.dmp

Filesize
80KB

Download
memory/3040-4-0x0000000000530000-0x0000000000538000-memory.dmp

Filesize
32KB

Download
memory/3040-6-0x0000000004650000-0x00000000046CC000-memory.dmp

Filesize
496KB

Download