nanocore | bc5358211e6e8e4946ba3c7f0f40fc9b3bfe7c0a67637cbb6dc5c3543575081e

General

Target

7388d4c13053aa91c55cbbfe915590b7.exe
Size

1002KB
MD5

7388d4c13053aa91c55cbbfe915590b7
SHA1

d83738a63773be012265718e4dca94eec253f9ef
SHA256

bc5358211e6e8e4946ba3c7f0f40fc9b3bfe7c0a67637cbb6dc5c3543575081e
SHA512

68bcf619c3463451aaaeb8eace269f6ce98ecbc177e9f524087456f016bf038bbe9e10255d9826426422968d5ddd2c7e2f46264539fd6138388998cc8655e700
SSDEEP

12288:1gNaV7uikFgVCCMFlZltgdUKAC9iDiZRd2z+u03ne/47bTqo1k+W:1BlubgVGFPlmdU/C8Ded2M3e/c2o

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

wiz121.ddns.net:1880

127.0.0.1:1880

Mutex

8bcf8b9d-91d7-4b59-a82e-7275a37f615b

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
37.235.1.177
buffer_size
65535
build_time
2022-06-25T12:52:04.650853336Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1880
default_group
purchase inquiry 09/13
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
8bcf8b9d-91d7-4b59-a82e-7275a37f615b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
wiz121.ddns.net
primary_dns_server
37.235.1.174
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	7388d4c13053aa91c55cbbfe915590b7.exe

Unexpected DNS network traffic destination 6 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description	ioc
Destination IP	37.235.1.177
Destination IP	37.235.1.174
Destination IP	37.235.1.177
Destination IP	37.235.1.174
Destination IP	37.235.1.177
Destination IP	37.235.1.174

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	7388d4c13053aa91c55cbbfe915590b7.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7388d4c13053aa91c55cbbfe915590b7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

description pid process target process

PID 4976 set thread context of 2880 4976 7388d4c13053aa91c55cbbfe915590b7.exe 7388d4c13053aa91c55cbbfe915590b7.exe

description	pid	process	target process
PID 4976 set thread context of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe

Drops file in Program Files directory 2 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

description	ioc	process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	7388d4c13053aa91c55cbbfe915590b7.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	7388d4c13053aa91c55cbbfe915590b7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

1068 schtasks.exe

pid	process
1068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exepowershell.exe7388d4c13053aa91c55cbbfe915590b7.exe

pid	process
4976	7388d4c13053aa91c55cbbfe915590b7.exe
4976	7388d4c13053aa91c55cbbfe915590b7.exe
4976	7388d4c13053aa91c55cbbfe915590b7.exe
4976	7388d4c13053aa91c55cbbfe915590b7.exe
4976	7388d4c13053aa91c55cbbfe915590b7.exe
4976	7388d4c13053aa91c55cbbfe915590b7.exe
4976	7388d4c13053aa91c55cbbfe915590b7.exe
3772	powershell.exe
3772	powershell.exe
2880	7388d4c13053aa91c55cbbfe915590b7.exe
2880	7388d4c13053aa91c55cbbfe915590b7.exe
2880	7388d4c13053aa91c55cbbfe915590b7.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

pid process

2880 7388d4c13053aa91c55cbbfe915590b7.exe

pid	process
2880	7388d4c13053aa91c55cbbfe915590b7.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exepowershell.exe7388d4c13053aa91c55cbbfe915590b7.exe

description	pid	process
Token: SeDebugPrivilege	4976	7388d4c13053aa91c55cbbfe915590b7.exe
Token: SeDebugPrivilege	3772	powershell.exe
Token: SeDebugPrivilege	2880	7388d4c13053aa91c55cbbfe915590b7.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

pid process

4976 7388d4c13053aa91c55cbbfe915590b7.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

pid process

4976 7388d4c13053aa91c55cbbfe915590b7.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

7388d4c13053aa91c55cbbfe915590b7.exe

description	pid	process	target process
PID 4976 wrote to memory of 3772	4976	7388d4c13053aa91c55cbbfe915590b7.exe	powershell.exe
PID 4976 wrote to memory of 3772	4976	7388d4c13053aa91c55cbbfe915590b7.exe	powershell.exe
PID 4976 wrote to memory of 3772	4976	7388d4c13053aa91c55cbbfe915590b7.exe	powershell.exe
PID 4976 wrote to memory of 1068	4976	7388d4c13053aa91c55cbbfe915590b7.exe	schtasks.exe
PID 4976 wrote to memory of 1068	4976	7388d4c13053aa91c55cbbfe915590b7.exe	schtasks.exe
PID 4976 wrote to memory of 1068	4976	7388d4c13053aa91c55cbbfe915590b7.exe	schtasks.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe
PID 4976 wrote to memory of 2880	4976	7388d4c13053aa91c55cbbfe915590b7.exe	7388d4c13053aa91c55cbbfe915590b7.exe

C:\Users\Admin\AppData\Local\Temp\7388d4c13053aa91c55cbbfe915590b7.exe
"C:\Users\Admin\AppData\Local\Temp\7388d4c13053aa91c55cbbfe915590b7.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4976

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uBUrhlEBRuTYya.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3772

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uBUrhlEBRuTYya" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9D3A.tmp"
2⤵
- Creates scheduled task(s)
PID:1068

C:\Users\Admin\AppData\Local\Temp\7388d4c13053aa91c55cbbfe915590b7.exe
"C:\Users\Admin\AppData\Local\Temp\7388d4c13053aa91c55cbbfe915590b7.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:2880

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\7388d4c13053aa91c55cbbfe915590b7.exe.log
Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9D3A.tmp
Filesize
1KB

MD5
4b8bcde0ae4645b8661aaf6c2e42ffa9

SHA1
f8b13543318e85f622fd6ddc5a6c5f7bd138a5f3

SHA256
3fc35d8207c33a5cbf37c6748dd397216fecabdd8a84238eec0f0757976f76de

SHA512
176b08e7e5d82011b859ef7d5e7422b02750da579bbe94948105019f3f18081850e1e1a9a4ede4c8e039b7f7cc1b9684ef947416391c19bc6fad6051c1f23bc1

Download Submit
memory/1068-139-0x0000000000000000-mapping.dmp

Download
memory/2880-144-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2880-143-0x0000000000000000-mapping.dmp

Download
memory/3772-138-0x0000000000000000-mapping.dmp

Download
memory/3772-153-0x0000000006FF0000-0x000000000700A000-memory.dmp

Filesize
104KB

Download
memory/3772-158-0x0000000007310000-0x0000000007318000-memory.dmp

Filesize
32KB

Download
memory/3772-140-0x0000000004740000-0x0000000004776000-memory.dmp

Filesize
216KB

Download
memory/3772-157-0x0000000007330000-0x000000000734A000-memory.dmp

Filesize
104KB

Download
memory/3772-142-0x0000000004F70000-0x0000000005598000-memory.dmp

Filesize
6.2MB

Download
memory/3772-156-0x0000000007220000-0x000000000722E000-memory.dmp

Filesize
56KB

Download
memory/3772-155-0x0000000007270000-0x0000000007306000-memory.dmp

Filesize
600KB

Download
memory/3772-154-0x0000000007060000-0x000000000706A000-memory.dmp

Filesize
40KB

Download
memory/3772-146-0x0000000004D20000-0x0000000004D42000-memory.dmp

Filesize
136KB

Download
memory/3772-147-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/3772-148-0x0000000005CF0000-0x0000000005D0E000-memory.dmp

Filesize
120KB

Download
memory/3772-149-0x0000000006EB0000-0x0000000006EE2000-memory.dmp

Filesize
200KB

Download
memory/3772-150-0x0000000070500000-0x000000007054C000-memory.dmp

Filesize
304KB

Download
memory/3772-151-0x0000000006280000-0x000000000629E000-memory.dmp

Filesize
120KB

Download
memory/3772-152-0x0000000007640000-0x0000000007CBA000-memory.dmp

Filesize
6.5MB

Download
memory/4976-132-0x0000000000F70000-0x0000000001070000-memory.dmp

Filesize
1024KB

Download
memory/4976-133-0x0000000005F90000-0x0000000006534000-memory.dmp

Filesize
5.6MB

Download
memory/4976-134-0x0000000005A80000-0x0000000005B12000-memory.dmp

Filesize
584KB

Download
memory/4976-135-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/4976-136-0x00000000095B0000-0x000000000964C000-memory.dmp

Filesize
624KB

Download
memory/4976-137-0x00000000098D0000-0x0000000009936000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads