nanocore | 9219aa9982516a8454b770461ed85217cf3adc6c2c2008b296720e3665b51e54

General

Target

CV.exe
Size

690KB
MD5

5d9fed85f31d020568f166e6291cbe7b
SHA1

df89b8bfedfd260e648b3a8938b47db6d2e1591c
SHA256

9219aa9982516a8454b770461ed85217cf3adc6c2c2008b296720e3665b51e54
SHA512

0eb7b60fbbaacf29e0ddc98b776c50e5395214f75e048d61a6739c4552cd301e10ca8cc361e23762caacfd07ebfd99058c302b5849fa7585d14614baf3968638

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kamuchehddhgfgf.ddns.net:1187

37.0.10.22:1187

Mutex

baa1bd16-ba50-4743-8b51-41c36ee5d9d4

Attributes

activate_away_mode
true
backup_connection_host
37.0.10.22
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-10T08:16:56.984441236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1187
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
baa1bd16-ba50-4743-8b51-41c36ee5d9d4
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kamuchehddhgfgf.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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

CV.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.exe"	CV.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

CV.exe

description ioc process

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

Processes:

CV.exe

description pid process target process

PID 648 set thread context of 540 648 CV.exe CV.exe

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

description	pid	process	target process
PID 648 set thread context of 540	648	CV.exe	CV.exe

Drops file in Program Files directory 2 IoCs

Processes:

CV.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Subsystem\udpss.exe	CV.exe
File opened for modification	C:\Program Files (x86)\UDP Subsystem\udpss.exe	CV.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CV.exe

pid process

540 CV.exe
540 CV.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

CV.exe

pid process

540 CV.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CV.exe

description pid process

Token: SeDebugPrivilege 540 CV.exe

pid	process
540	CV.exe
540	CV.exe

pid	process
540	CV.exe

description	pid	process
Token: SeDebugPrivilege	540	CV.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

CV.exe

description	pid	process	target process
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe
PID 648 wrote to memory of 540	648	CV.exe	CV.exe

C:\Users\Admin\AppData\Local\Temp\CV.exe
"C:\Users\Admin\AppData\Local\Temp\CV.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:648

C:\Users\Admin\AppData\Local\Temp\CV.exe
"C:\Users\Admin\AppData\Local\Temp\CV.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:540

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/540-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/540-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/540-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/540-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/540-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/540-62-0x000000000041E792-mapping.dmp

Download
memory/540-64-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/648-54-0x0000000076961000-0x0000000076963000-memory.dmp

Filesize
8KB

Download
memory/648-55-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/648-56-0x00000000001D1000-0x00000000001D2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads