nanocore | f866833ab442929e34536a128184bceafe1715499777a61244323551742bf4ee

General

Target

ENQUIRY_.exe
Size

1.7MB
MD5

a2301e5f6bb76e888d242c4a6a49af47
SHA1

680dd9446633c37b09e2bc0542d86628ececc397
SHA256

51b15f2f55025fe7eff1ee4a4f5a2bedc616f3e0fc678a01a108d52c41e693ec
SHA512

4fe8ddb24f2ddc44250f8efeb72c556559c5568808cc310bc6154da705405044071416ed2d5ee263b4a209ab1f864bd3f2d14493553d370c8666d652328e5fe6

Score

10^/10

nanocore keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

u852117.nvpn.so:5638

comcasted.duckdns.org:5638

Mutex

c2752564-42a0-44a1-9f65-f38d35e9ab26

Attributes

activate_away_mode
true
backup_connection_host
comcasted.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-12-31T14:52:32.548938136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5638
default_group
comcasted
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
c2752564-42a0-44a1-9f65-f38d35e9ab26
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852117.nvpn.so
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:

ENQUIRY_.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\btpanui.url	ENQUIRY_.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ENQUIRY_.exe

description pid process target process

PID 3220 set thread context of 5024 3220 ENQUIRY_.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

MSBuild.exe

pid process

5024 MSBuild.exe
5024 MSBuild.exe
5024 MSBuild.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

5024 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 5024 MSBuild.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

ENQUIRY_.exe

pid process

3220 ENQUIRY_.exe
3220 ENQUIRY_.exe
3220 ENQUIRY_.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

ENQUIRY_.exe

pid process

3220 ENQUIRY_.exe
3220 ENQUIRY_.exe
3220 ENQUIRY_.exe

description	pid	process	target process
PID 3220 set thread context of 5024	3220	ENQUIRY_.exe	MSBuild.exe

pid	process
5024	MSBuild.exe
5024	MSBuild.exe
5024	MSBuild.exe

pid	process
5024	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	5024	MSBuild.exe

pid	process
3220	ENQUIRY_.exe
3220	ENQUIRY_.exe
3220	ENQUIRY_.exe

pid	process
3220	ENQUIRY_.exe
3220	ENQUIRY_.exe
3220	ENQUIRY_.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

ENQUIRY_.exe

description	pid	process	target process
PID 3220 wrote to memory of 5024	3220	ENQUIRY_.exe	MSBuild.exe
PID 3220 wrote to memory of 5024	3220	ENQUIRY_.exe	MSBuild.exe
PID 3220 wrote to memory of 5024	3220	ENQUIRY_.exe	MSBuild.exe
PID 3220 wrote to memory of 5024	3220	ENQUIRY_.exe	MSBuild.exe
PID 3220 wrote to memory of 5024	3220	ENQUIRY_.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\ENQUIRY_.exe
"C:\Users\Admin\AppData\Local\Temp\ENQUIRY_.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3220

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:5024

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3220-130-0x000000003C3D0000-0x000000003C436000-memory.dmp

Filesize
408KB

Download
memory/3220-137-0x000000003C210000-0x000000003C276000-memory.dmp

Filesize
408KB

Download
memory/5024-131-0x0000000000000000-mapping.dmp

Download
memory/5024-132-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5024-138-0x0000000073BE0000-0x0000000074191000-memory.dmp

Filesize
5.7MB

Download

Analysis

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