nanocore | 0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4

General

Target

0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe
Size

279KB
MD5

34a00d782f9766b8185f616b48d088ce
SHA1

40f0d6841fd8a71ad280e2f16426a4bdec361cc2
SHA256

0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4
SHA512

21829790ecae391fbe2be96293a674d8c3547c550ddbed88ac4d20232398f93efddbd884b5e1e9bc211a18285cec985b0789db424ab4edb07700bbe2206f9e7c
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66f/:boSeGUA5YZazpXUmZhZ6n

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe

Executes dropped EXE 2 IoCs

pid	Process
1696	a1punf5t2of.exe
712	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.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 1696 set thread context of 712	1696	a1punf5t2of.exe	89

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	0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.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
712	a1punf5t2of.exe
712	a1punf5t2of.exe
712	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
712	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	712	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 1696	4088	0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe	88
PID 4088 wrote to memory of 1696	4088	0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe	88
PID 4088 wrote to memory of 1696	4088	0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe	88
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 712	1696	a1punf5t2of.exe	89

C:\Users\Admin\AppData\Local\Temp\0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe
"C:\Users\Admin\AppData\Local\Temp\0f72038eb374ca1ef1aadf1a8b0c2671f0c8a5eebc7d695d5544c37a0f4febc4.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4088
- 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:1696
- - 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:712

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
280KB

MD5
4361d7243d32f0403486db3df8e25ce3

SHA1
c2e810006dd1299be810dfdbacfcaebbfab16a1b

SHA256
3f03bec82f336dd43af107f08908b389f8e4bc91a3aefc75dc501d650269f589

SHA512
91256d40eff38f84f1ed23f87f7d2137db557a5330078632a889bc19907317c3a3e0516231868eaccce75279eb0f888ebc6613a1c33a1a62308bb154241a9df8

Download Submit
memory/712-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/712-42-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-39-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-38-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-37-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-36-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-34-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-33-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/712-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/712-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1696-24-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-21-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-25-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-26-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-27-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-23-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-41-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-0-0x0000000075552000-0x0000000075553000-memory.dmp

Filesize
4KB

Download
memory/4088-7-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-6-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-5-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-4-0x0000000075552000-0x0000000075553000-memory.dmp

Filesize
4KB

Download
memory/4088-3-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-2-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-22-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4088-1-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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