nanocore | 41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf

General

Target

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
Size

331KB
MD5

37954dd654d09d779a07207089132567
SHA1

f4f55963a71061e383b55af2165ff05f3bf42059
SHA256

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf
SHA512

4465ea4ad73de486f3cd4ea1c671144d079cfdc1f8047efa98b6cf23d45ee49e581e32cd50f29af7e1104265402cab29267e37eb2a2587d230637d7299c76351
SSDEEP

6144:IMTEZW5P4nJC1Ph9cT171Vh5+tlQFtHFvclqGq9gW215KLT:IMTEZWmnJ0PvcT1xX5+fGZF0lqDh215K

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

onpcsetup.duckdns.org:4040

Mutex

0f3d3d41-f68b-4ed8-a46e-7dd76651607e

Attributes

activate_away_mode
true
backup_connection_host
onpcsetup.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-03-26T16:38:02.857211536Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4040
default_group
onpcsetup2
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
0f3d3d41-f68b-4ed8-a46e-7dd76651607e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
onpcsetup.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

Drops startup file 1 IoCs

Processes:

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\others1.eu.url	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe

description	pid	process	target process
PID 320 set thread context of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exeRegAsm.exe

pid	process
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
1004	RegAsm.exe
1004	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

1004 RegAsm.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe

pid process

320 41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1004 RegAsm.exe

pid	process
1004	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1004	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe

description	pid	process	target process
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe
PID 320 wrote to memory of 1004	320	41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe
"C:\Users\Admin\AppData\Local\Temp\41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:320

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\41cb474f234cd2bd7ee48bde78cbeb9239e9cb20e1a75acb2b6b4a128c510adf.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/320-54-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1004-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1004-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1004-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1004-63-0x0000000005000000-0x0000000005040000-memory.dmp

Filesize
256KB

Download
memory/1004-64-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/1004-65-0x00000000003C0000-0x00000000003DE000-memory.dmp

Filesize
120KB

Download
memory/1004-66-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/1004-67-0x0000000005000000-0x0000000005040000-memory.dmp

Filesize
256KB

Download
memory/1004-68-0x0000000005000000-0x0000000005040000-memory.dmp

Filesize
256KB

Download
memory/1004-69-0x0000000005000000-0x0000000005040000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads