nanocore | ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69f

General

Target

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
Size

331KB
MD5

e83180ee749e586a90c23b0bb72ac870
SHA1

ec4a3753d6fea3e356db4558cf5951c36a5349b9
SHA256

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69f
SHA512

a5071088ffc27e481c0fdc81f0493a3df5912a05b1f95d639215d85175e206765df1a6d95a14195bea7015df1385dd289abb2dc9ac1d20e22a5d5ecee97b9e78
SSDEEP

6144:IMTEZW5E4nJC1Ph9cT171Vh5+tlQFtHFvclqGq9gW215KLT:IMTEZW/nJ0PvcT1xX5+fGZF0lqDh215K

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

onpcsetup.duckdns.org:4040

Mutex

0f3d3d41-f68b-4ed8-a46e-7dd76651607e

Attributes

activate_away_mode
true
backup_connection_host
onpcsetup.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-03-26T16:38:02.857211536Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4040
default_group
onpcsetup2
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
0f3d3d41-f68b-4ed8-a46e-7dd76651607e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
onpcsetup.duckdns.org
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
Nanocore family
nanocore

Drops startup file 1 IoCs

Processes:

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\others1.eu.url	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.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

Suspicious use of SetThreadContext 1 IoCs

Processes:

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

description	pid	Process	procid_target
PID 3020 set thread context of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32

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:

RegAsm.exeef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exeRegAsm.exe

pid	Process
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
2876	RegAsm.exe
2876	RegAsm.exe
2876	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid	Process
2876	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

pid	Process
3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description	pid	Process
Token: SeDebugPrivilege	2876	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe

description	pid	Process	procid_target
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32
PID 3020 wrote to memory of 2876	3020	ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe	32

C:\Users\Admin\AppData\Local\Temp\ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe
"C:\Users\Admin\AppData\Local\Temp\ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Users\Admin\AppData\Local\Temp\ef4788727e8638b869d2851c3800c64d47beae932622e13c5d4a628fcf0da69fN.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2876

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/2876-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-22-0x00000000004D0000-0x00000000004DA000-memory.dmp

Filesize
40KB

Download
memory/2876-21-0x0000000000470000-0x000000000048E000-memory.dmp

Filesize
120KB

Download
memory/2876-20-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/2876-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3020-12-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-13-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-9-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-8-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-7-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-6-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-5-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-10-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-11-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-0-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-4-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-3-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-2-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/3020-1-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads