nanocore | 1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9

General

Target

1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe
Size

255KB
MD5

c8e50b78eea390ec52cf98ee17563944
SHA1

ebc248da0d381be1353c3f1bba5bd6d660f60337
SHA256

1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9
SHA512

31fdc4a0970c107f8374af4efefd97cc2ca9411f5f4f1cfbd4c4c6c5d1f034155b6a16fc2ac06e086706e6caeb84aa306ea8c9a320cf246a7ded112d1d5981ec
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQqF:EeGUA5YZazpXUmZhJF

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	1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe

Executes dropped EXE 2 IoCs

pid	Process
2960	a1punf5t2of.exe
2648	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"	1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.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 2960 set thread context of 2648	2960	a1punf5t2of.exe	90

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	1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.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
2648	a1punf5t2of.exe
2648	a1punf5t2of.exe
2648	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2648	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 2960	4352	1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe	87
PID 4352 wrote to memory of 2960	4352	1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe	87
PID 4352 wrote to memory of 2960	4352	1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe	87
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90
PID 2960 wrote to memory of 2648	2960	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe
"C:\Users\Admin\AppData\Local\Temp\1789930d3fb44f805c2fe429bee8dd07c8a678198f43095315d9e1ef6e72bca9.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4352
- 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:2960
- - 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:2648

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
5df5300b0f30e61718511ca6c951734d

SHA1
ec56b487d87b0418e0d5c483e00f30678a61e245

SHA256
198bd20b03c71da642b31dfecac32ff61705f3ab2352e0b2f1411a78ff62be65

SHA512
72b929a8f6e61ed593d62b63724402cdc0cdb63758af8938aaa837127d8de44bfd22c1b0b326db0d866bb0b540913e21c0d0e59fc2186438504a525e947f9f97

Download Submit
memory/2648-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-40-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2648-37-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2648-36-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2648-34-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2648-33-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2648-32-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2648-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-24-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-23-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-39-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-25-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-26-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-21-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-7-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-22-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-6-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-5-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-4-0x0000000074C42000-0x0000000074C43000-memory.dmp

Filesize
4KB

Download
memory/4352-3-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-2-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4352-0-0x0000000074C42000-0x0000000074C43000-memory.dmp

Filesize
4KB

Download
memory/4352-1-0x0000000074C40000-0x00000000751F1000-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