nanocore | 276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf

General

Target

276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe
Size

255KB
MD5

4b2543d39fb31f4d16e4cbb6a9d3b2e6
SHA1

eae74c967458c99487f44dada8da17a697d39afb
SHA256

276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf
SHA512

87e05ad3109cfd14f5dcf21a3b5bd568d355ae4f4241ecdc95b8a52b6c2b51f6d4e87fec3ab50f577ad24354f58a08ccb020f6f463dc71827e51362781ec17e0
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQS5:EeGUA5YZazpXUmZhd5

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe

Executes dropped EXE 2 IoCs

pid	Process
5044	a1punf5t2of.exe
1600	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.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 5044 set thread context of 1600	5044	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	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.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
1600	a1punf5t2of.exe
1600	a1punf5t2of.exe
1600	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1600	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 5044	3556	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	93
PID 3556 wrote to memory of 5044	3556	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	93
PID 3556 wrote to memory of 5044	3556	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	93
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98
PID 5044 wrote to memory of 1600	5044	a1punf5t2of.exe	98

C:\Users\Admin\AppData\Local\Temp\276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe
"C:\Users\Admin\AppData\Local\Temp\276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3556
- 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:5044
- - 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:1600

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
255KB

MD5
5e7e5f6deacb3ce54b6fa02f60d51e17

SHA1
bfbf4e8b7f8e19d51cbb8cf0f6b4f865a886e45b

SHA256
27a6d56e9c32578e0dcb832a62d130c322bd160a4a274e78611d108567342056

SHA512
4d60f8e43cb547bc14fd8148d6750d4ed47fca55e302019804883b2ce97ea05b395c7a5e7667dcb6ac1cccd36098ea34cab937226eac3869717017c5e469a91a

Download Submit
memory/1600-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1600-40-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/1600-37-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/1600-36-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/1600-34-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/1600-33-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/1600-32-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/1600-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1600-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3556-6-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-4-0x0000000074A72000-0x0000000074A73000-memory.dmp

Filesize
4KB

Download
memory/3556-1-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-2-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-3-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-21-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-5-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-7-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3556-0-0x0000000074A72000-0x0000000074A73000-memory.dmp

Filesize
4KB

Download
memory/5044-22-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/5044-23-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/5044-26-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/5044-25-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/5044-39-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/5044-24-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads