nanocore | 832782af8ac7a682f48d5a00f549a5474d6b2524386c8826eae41982db8597c3

General

Target

Booking_Quote.exe
Size

847KB
MD5

aba916f3b7571e5ed3a8813407490a7a
SHA1

846c332c18b1799471c6243181fb01896ce0cb79
SHA256

832782af8ac7a682f48d5a00f549a5474d6b2524386c8826eae41982db8597c3
SHA512

4a88b7a0109ed6f9bfecef0f305b633c2779c9e190f6995cf8aa59d50d24da21f8b0c1657f316c22e7455931dc16adb86aca3e12319798c93389104ebd084567

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

u852121.nvpn.to:3410

Mutex

6600ee3d-9113-495f-9807-2cbadaeabc68

Attributes

activate_away_mode
true
backup_connection_host
u852121.nvpn.to
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-29T22:15:11.322294736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3410
default_group
usp
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
6600ee3d-9113-495f-9807-2cbadaeabc68
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852121.nvpn.to
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

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Booking_Quote.exe

description	pid	process	target process
PID 3576 wrote to memory of 2724	3576	Booking_Quote.exe	schtasks.exe
PID 3576 wrote to memory of 2724	3576	Booking_Quote.exe	schtasks.exe
PID 3576 wrote to memory of 2724	3576	Booking_Quote.exe	schtasks.exe
PID 3576 wrote to memory of 3648	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3648	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3648	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe
PID 3576 wrote to memory of 3832	3576	Booking_Quote.exe	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Booking_Quote.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3576 Booking_Quote.exe
Token: SeDebugPrivilege 3832 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3576	Booking_Quote.exe
Token: SeDebugPrivilege	3832	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

Booking_Quote.exeRegSvcs.exe

pid	process
3576	Booking_Quote.exe
3576	Booking_Quote.exe
3576	Booking_Quote.exe
3832	RegSvcs.exe
3832	RegSvcs.exe
3832	RegSvcs.exe
3832	RegSvcs.exe
3832	RegSvcs.exe
3832	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Booking_Quote.exe

description pid process target process

PID 3576 set thread context of 3832 3576 Booking_Quote.exe RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

3832 RegSvcs.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2724 schtasks.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegSvcs.exe

description ioc process

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

description	pid	process	target process
PID 3576 set thread context of 3832	3576	Booking_Quote.exe	RegSvcs.exe

pid	process
3832	RegSvcs.exe

pid	process
2724	schtasks.exe

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

C:\Users\Admin\AppData\Local\Temp\Booking_Quote.exe
"C:\Users\Admin\AppData\Local\Temp\Booking_Quote.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
PID:3576

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vWdshdpNeryGb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8320.tmp"
2⤵
- Creates scheduled task(s)
PID:2724

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
PID:3648

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Checks whether UAC is enabled
PID:3832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8320.tmp

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memory/2724-0-0x0000000000000000-mapping.dmp

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memory/3832-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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memory/3832-3-0x000000000041E792-mapping.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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