nanocore | 71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8

General

Target

71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe
Size

256KB
MD5

cbcebb944e110ab7b5d51b3461f2d050
SHA1

14f21749f780aa47c784406c2f9a2dca486b34fe
SHA256

71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8
SHA512

878d4f42c729c318bb396631b86e40eede50fac8085968dee13144f9696c2852a81918b3b2bef698a3548567cdf662224f683234590968c76dff1f653fb68f25
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQS4f:EeGUA5YZazpXUmZh94f

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe

Executes dropped EXE 2 IoCs

pid	Process
2564	a1punf5t2of.exe
3732	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.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 2564 set thread context of 3732	2564	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	71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.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
3732	a1punf5t2of.exe
3732	a1punf5t2of.exe
3732	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3732	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3732	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 2564	4052	71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe	86
PID 4052 wrote to memory of 2564	4052	71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe	86
PID 4052 wrote to memory of 2564	4052	71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe	86
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90
PID 2564 wrote to memory of 3732	2564	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe
"C:\Users\Admin\AppData\Local\Temp\71934d841eadd13bfb20def3444647ffe529d77d48eab9298b0cd43fb7549bd8N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- 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:2564
- - 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:3732

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
256KB

MD5
89d6aeb5896e36003a9d5da3cf99c02d

SHA1
b48c804fbd378054d8430804878e7bfae7376c2c

SHA256
27c85cf1140cf7fa04b99fb44a205632cdb4e983b914be4a1d0553129ef02ddc

SHA512
1fc1212ff27457cda0dc80bb281a6f89f8b3bf9533a02e30d27b2bdb748a2fe421d2baf2681cb36887c755b4426d2b2912e2f160810fa68f9b19c46662c19a4a

Download Submit
memory/2564-37-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/2564-26-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/2564-25-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/2564-24-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/2564-23-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/2564-21-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3732-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3732-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3732-38-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3732-35-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3732-34-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3732-32-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3732-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4052-5-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4052-0-0x0000000074D82000-0x0000000074D83000-memory.dmp

Filesize
4KB

Download
memory/4052-2-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4052-3-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4052-4-0x0000000074D82000-0x0000000074D83000-memory.dmp

Filesize
4KB

Download
memory/4052-7-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4052-6-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4052-1-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4052-22-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads