nanocore | 314295f50f19bc76b802b15a0ec487c50749dc617d48ea91b129ba699e01ff31

General

Target

LisectAVT_2403002B_160.exe
Size

1.4MB
MD5

196eb0eaab0b0dd8f691e89719e3e09e
SHA1

b3d4718abb3bc226fdc00e4d9348065a89dedf8d
SHA256

314295f50f19bc76b802b15a0ec487c50749dc617d48ea91b129ba699e01ff31
SHA512

41ce8163cfccbd1f691dfbd9b8e42fc337efb90f2dc81f99a8ab1b09e7b7b0fd085ae0c859ef0da79848e6714933f8052064f54994919da79e03d83c80f183c2
SSDEEP

24576:cAHnh+eWsN3skA4RV1Hom2KXcytcEd4up+MjI0cXMNxJ0uKe+OqU03oh/M6lD5q:7h+ZkldoPKsmcOp+MjaXMdmeH0YdM6vq

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

testwork.kozow.com:8906

Mutex

bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

Attributes

activate_away_mode
true
backup_connection_host
testwork.kozow.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-02-16T16:47:25.218235636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8906
default_group
star
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
bd6fc7b5-d48b-4e23-98f7-784bd3ef305c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
testwork.kozow.com
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:

LisectAVT_2403002B_160.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PresentationHost.url	LisectAVT_2403002B_160.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 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral1/memory/2520-0-0x0000000000DD0000-0x0000000000F43000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

LisectAVT_2403002B_160.exe

description pid process target process

PID 2520 set thread context of 2676 2520 LisectAVT_2403002B_160.exe RegAsm.exe

description	pid	process	target process
PID 2520 set thread context of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

LisectAVT_2403002B_160.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LisectAVT_2403002B_160.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

LisectAVT_2403002B_160.exe

pid	process
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe
2520	LisectAVT_2403002B_160.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2676 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2676 RegAsm.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

LisectAVT_2403002B_160.exe

pid process

2520 LisectAVT_2403002B_160.exe
2520 LisectAVT_2403002B_160.exe
2520 LisectAVT_2403002B_160.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

LisectAVT_2403002B_160.exe

pid process

2520 LisectAVT_2403002B_160.exe
2520 LisectAVT_2403002B_160.exe
2520 LisectAVT_2403002B_160.exe

pid	process
2676	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2676	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

LisectAVT_2403002B_160.exe

description	pid	process	target process
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe
PID 2520 wrote to memory of 2676	2520	LisectAVT_2403002B_160.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002B_160.exe
"C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002B_160.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2520

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
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2520-0-0x0000000000DD0000-0x0000000000F43000-memory.dmp

Filesize
1.4MB

Download
memory/2520-6-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/2520-18-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/2676-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-16-0x0000000074912000-0x0000000074914000-memory.dmp

Filesize
8KB

Download
memory/2676-19-0x0000000074912000-0x0000000074914000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads