nanocore | bd6c4de472e1f69bd693b26f45f9c81f21bdd7f33dcc68bc27519f9431c4b7b4

General

Target

9cad416b95200ec0bc30ef95523f6e1b464886b6.exe
Size

2.0MB
MD5

48327e539837574b0ea89654d1c23d68
SHA1

9cad416b95200ec0bc30ef95523f6e1b464886b6
SHA256

bd6c4de472e1f69bd693b26f45f9c81f21bdd7f33dcc68bc27519f9431c4b7b4
SHA512

1ab83c7077973867ea41132890f388d80673df637d7ead551ea5f05098852a84bc567bfa5bb599551144ba1da1b2caaf3e5ce2aea5b5716f35887b5e85f3e127
SSDEEP

24576:VBXu9HGaVH9vflFkp4VY99j5Y4PZDK3XJCzix:Vw9VHBfnkp4VY9zbBGXJCzE

Score

10^/10

nanocore evasion keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kf123.ddns.net:1604

127.0.0.1:1604

Mutex

9edcaf8d-019c-414d-bcec-d1174381feda

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-03-29T23:00:40.397394036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1604
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
9edcaf8d-019c-414d-bcec-d1174381feda
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kf123.ddns.net
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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4708-132-0x00000000002F0000-0x000000000071F000-memory.dmp	upx
behavioral2/memory/4708-133-0x00000000002F0000-0x000000000071F000-memory.dmp	upx
behavioral2/memory/4708-140-0x00000000002F0000-0x000000000071F000-memory.dmp	upx

Drops startup file 1 IoCs

Processes:

9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\write.url	9cad416b95200ec0bc30ef95523f6e1b464886b6.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

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/4708-133-0x00000000002F0000-0x000000000071F000-memory.dmp	autoit_exe
behavioral2/memory/4708-140-0x00000000002F0000-0x000000000071F000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

description pid process target process

PID 4708 set thread context of 4676 4708 9cad416b95200ec0bc30ef95523f6e1b464886b6.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

4676 RegAsm.exe
4676 RegAsm.exe
4676 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

4676 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4676 RegAsm.exe

description	pid	process	target process
PID 4708 set thread context of 4676	4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe	RegAsm.exe

pid	process
4676	RegAsm.exe
4676	RegAsm.exe
4676	RegAsm.exe

pid	process
4676	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4676	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

pid	process
4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe
4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe
4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

pid	process
4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe
4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe
4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

9cad416b95200ec0bc30ef95523f6e1b464886b6.exe

description	pid	process	target process
PID 4708 wrote to memory of 4676	4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe	RegAsm.exe
PID 4708 wrote to memory of 4676	4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe	RegAsm.exe
PID 4708 wrote to memory of 4676	4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe	RegAsm.exe
PID 4708 wrote to memory of 4676	4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe	RegAsm.exe
PID 4708 wrote to memory of 4676	4708	9cad416b95200ec0bc30ef95523f6e1b464886b6.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\9cad416b95200ec0bc30ef95523f6e1b464886b6.exe
"C:\Users\Admin\AppData\Local\Temp\9cad416b95200ec0bc30ef95523f6e1b464886b6.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4708

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4676

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

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Downloads

memory/4676-134-0x0000000000000000-mapping.dmp

Download
memory/4676-137-0x0000000000420000-0x0000000000458000-memory.dmp

Filesize
224KB

Download
memory/4676-136-0x0000000000422000-0x000000000043F000-memory.dmp

Filesize
116KB

Download
memory/4676-141-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4676-142-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4708-132-0x00000000002F0000-0x000000000071F000-memory.dmp

Filesize
4.2MB

Download
memory/4708-133-0x00000000002F0000-0x000000000071F000-memory.dmp

Filesize
4.2MB

Download
memory/4708-140-0x00000000002F0000-0x000000000071F000-memory.dmp

Filesize
4.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads