nanocore | 6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057

General

Target

6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
Size

254KB
MD5

0676798cb430804268472910ad8a1750
SHA1

82c2dc99275e7ca0935be96a9fab6ca7b976aed0
SHA256

6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057
SHA512

722c1160042d11a98248fa4e17596f880dd5e7a6e95b832bc6f2b0f5c14ca067b484f2bdc5c0480569c2e33472ab5cd65250c471c5cda5840c932b0bb118a2f9
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQqC:EeGUA5YZazpXUmZhJC

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe

Executes dropped EXE 2 IoCs

pid	Process
2344	a1punf5t2of.exe
4856	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2344 set thread context of 4856	2344	a1punf5t2of.exe	98

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4856	a1punf5t2of.exe
4856	a1punf5t2of.exe
4856	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4856	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 2344	1376	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	97
PID 1376 wrote to memory of 2344	1376	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	97
PID 1376 wrote to memory of 2344	1376	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	97
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98
PID 2344 wrote to memory of 4856	2344	a1punf5t2of.exe	98

C:\Users\Admin\AppData\Local\Temp\6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
"C:\Users\Admin\AppData\Local\Temp\6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2344
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

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

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
254KB

MD5
aff015bb0ddfafc3ca2ed93c458f8083

SHA1
464bd81660a47a1ec9733ec91ef234134348b957

SHA256
05b3132e66b914345f6bfd77436254959ff6e63bbd2aa64ab4417327b5ed16bb

SHA512
1fc436f1e48446f34ae6d5fe284807ed0e4e6b1c3403853e16a675fb3b51bfacb0bacd37badf30567e7a6fb675f2cfefd2b823b88f7b39bd68fae2797efbc632

Download Submit
memory/1376-22-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-1-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-2-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-3-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-4-0x0000000074842000-0x0000000074843000-memory.dmp

Filesize
4KB

Download
memory/1376-5-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-6-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-7-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/1376-0-0x0000000074842000-0x0000000074843000-memory.dmp

Filesize
4KB

Download
memory/2344-26-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/2344-23-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/2344-24-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/2344-25-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/2344-21-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/2344-27-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/2344-41-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-33-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4856-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4856-34-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-35-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-37-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-38-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-39-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4856-42-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-43-0x0000000074840000-0x0000000074DF1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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