nanocore | ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19

General

Target

ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe
Size

255KB
MD5

da60d36ef19eca6315b5666408c069c9
SHA1

cde6731cc408326ba9c7118fa5026917676e7967
SHA256

ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19
SHA512

06718c06c8f7ade4e0087fb20ba921fcd655b5bd2c25a658b7cb952e3f8085c6f0990726ecf57c0654c68c68dca8c7c2a009c9c90f2f0ff95d435882eb83fbc7
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQq1:EeGUA5YZazpXUmZhJ1

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe

Executes dropped EXE 2 IoCs

pid	Process
3240	a1punf5t2of.exe
4064	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.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 3240 set thread context of 4064	3240	a1punf5t2of.exe	97

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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4064	a1punf5t2of.exe
4064	a1punf5t2of.exe
4064	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4064	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4064	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 3240	828	ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe	96
PID 828 wrote to memory of 3240	828	ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe	96
PID 828 wrote to memory of 3240	828	ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe	96
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97
PID 3240 wrote to memory of 4064	3240	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe
"C:\Users\Admin\AppData\Local\Temp\ed2edc910bc423ebabdb45cbe58b207949a41e17bc433200bf58988031ccaa19.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:828
- 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:3240
- - 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:4064

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
30f074b7219b48c82a24e064e2f48d3a

SHA1
a1c99a72d21ffbd9b269982232b55d9d9900d699

SHA256
3a15aadac18693daad95d5e9d6e1342779f9738791b7e4a44ed666058aa1956c

SHA512
98d1dfa83c84d24cb0d4b1b192cd4f74fba857d0a8b597f63e0c99f6edf7112d5d12c7d017e985b4f02b8ee820d7ed84b722e41163a7df268d948e9709ba9dbe

Download Submit
memory/828-0-0x0000000074F42000-0x0000000074F43000-memory.dmp

Filesize
4KB

Download
memory/828-1-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/828-2-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/828-3-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/828-4-0x0000000074F42000-0x0000000074F43000-memory.dmp

Filesize
4KB

Download
memory/828-5-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/828-6-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/828-7-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/828-21-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-24-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-23-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-22-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-25-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-26-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-38-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4064-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4064-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4064-32-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4064-33-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4064-35-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4064-36-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4064-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4064-39-0x0000000074F40000-0x00000000754F1000-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