nanocore | 359c0c66cbb2eabf2771a62a2a87762734b73457cf431d1a7e0c94e3a4ab3cfa

General

Target

Debitnote-s3update.exe
Size

685KB
MD5

f162063c8a3c61db87238f88e2e82a81
SHA1

f8e30f49ca71e8f733774c5bd0f770659bdb93ff
SHA256

359c0c66cbb2eabf2771a62a2a87762734b73457cf431d1a7e0c94e3a4ab3cfa
SHA512

c3bcdfc4bfbe63d3a0b1a0cad7a21c28de7948e8c5571dfce21045e2849f1aed931f3df504b8c3adc0ed3d6a1775754fc939b5fa3da752c56d9843f2eed250b3

Score

10^/10

nanocore evasion keylogger persistence spyware stealer 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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Debitnote-s3update.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"	Debitnote-s3update.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Debitnote-s3update.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Debitnote-s3update.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Debitnote-s3update.exe

description pid process target process

PID 656 set thread context of 1364 656 Debitnote-s3update.exe Debitnote-s3update.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Debitnote-s3update.exe

description	pid	process	target process
PID 656 set thread context of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe

Drops file in Program Files directory 2 IoCs

Processes:

Debitnote-s3update.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Subsystem\udpss.exe	Debitnote-s3update.exe
File opened for modification	C:\Program Files (x86)\UDP Subsystem\udpss.exe	Debitnote-s3update.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Debitnote-s3update.exe

pid process

1364 Debitnote-s3update.exe
1364 Debitnote-s3update.exe
1364 Debitnote-s3update.exe
1364 Debitnote-s3update.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Debitnote-s3update.exe

pid process

1364 Debitnote-s3update.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Debitnote-s3update.exe

description pid process

Token: SeDebugPrivilege 1364 Debitnote-s3update.exe

pid	process
1364	Debitnote-s3update.exe
1364	Debitnote-s3update.exe
1364	Debitnote-s3update.exe
1364	Debitnote-s3update.exe

pid	process
1364	Debitnote-s3update.exe

description	pid	process
Token: SeDebugPrivilege	1364	Debitnote-s3update.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Debitnote-s3update.exe

description	pid	process	target process
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe
PID 656 wrote to memory of 1364	656	Debitnote-s3update.exe	Debitnote-s3update.exe

C:\Users\Admin\AppData\Local\Temp\Debitnote-s3update.exe
"C:\Users\Admin\AppData\Local\Temp\Debitnote-s3update.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:656

C:\Users\Admin\AppData\Local\Temp\Debitnote-s3update.exe
"C:\Users\Admin\AppData\Local\Temp\Debitnote-s3update.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:1364

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

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Downloads

memory/656-54-0x00000000765A1000-0x00000000765A3000-memory.dmp

Filesize
8KB

Download
memory/656-55-0x0000000000400000-0x0000000000401000-memory.dmp

Filesize
4KB

Download
memory/656-56-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/1364-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1364-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1364-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1364-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1364-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1364-62-0x000000000041E792-mapping.dmp

Download
memory/1364-64-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads