nanocore | 52fe19cf1fd62bf14e93b6047ab9a4caa7d4874b0775b2b999829476ccfaacef

General

Target

Invoice.exe
Size

863KB
MD5

c2720ce6cc0f31551a6cef74c8dfc79e
SHA1

d12f85204042be1a50dc6d876dfd603a00baf0bc
SHA256

52fe19cf1fd62bf14e93b6047ab9a4caa7d4874b0775b2b999829476ccfaacef
SHA512

b15474ba548d4c1e180590291f45a7bc73832ebb392a3a837b32df0acf008e093cb9dc62fea3912c1d25d9c8460015cbd1379370ed34cd84d1f4e7d21bb167bd

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

172.94.42.77:54983

Mutex

fa062181-d17f-4771-b853-56ad4122293b

Attributes

activate_away_mode
true
backup_connection_host
172.94.42.77
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-16T19:45:17.991100336Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
54983
default_group
Default
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
fa062181-d17f-4771-b853-56ad4122293b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
172.94.42.77
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.exe"	Invoice.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Invoice.exe

description ioc process

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

Processes:

Invoice.exe

description pid process target process

PID 2824 set thread context of 2236 2824 Invoice.exe Invoice.exe

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

description	pid	process	target process
PID 2824 set thread context of 2236	2824	Invoice.exe	Invoice.exe

Drops file in Program Files directory 2 IoCs

Processes:

Invoice.exe

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

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

Invoice.exeInvoice.exe

pid	process
2824	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe
2236	Invoice.exe
2236	Invoice.exe
2236	Invoice.exe
2824	Invoice.exe
2824	Invoice.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Invoice.exe

pid process

2236 Invoice.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice.exeInvoice.exe

description pid process

Token: SeDebugPrivilege 2824 Invoice.exe
Token: SeDebugPrivilege 2236 Invoice.exe

pid	process
2236	Invoice.exe

description	pid	process
Token: SeDebugPrivilege	2824	Invoice.exe
Token: SeDebugPrivilege	2236	Invoice.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Invoice.exe

description	pid	process	target process
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe
PID 2824 wrote to memory of 2236	2824	Invoice.exe	Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2824

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.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
PID:2236

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2236-135-0x0000000000000000-mapping.dmp

Download
memory/2236-136-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2824-130-0x0000000000A70000-0x0000000000B4C000-memory.dmp

Filesize
880KB

Download
memory/2824-131-0x00000000059B0000-0x0000000005F54000-memory.dmp

Filesize
5.6MB

Download
memory/2824-132-0x0000000005400000-0x0000000005492000-memory.dmp

Filesize
584KB

Download
memory/2824-133-0x00000000053B0000-0x00000000053BA000-memory.dmp

Filesize
40KB

Download
memory/2824-134-0x0000000005660000-0x00000000056FC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads