nanocore | 909e82bca80a6c377b2ea644d17c9c20d2eda279b95327191fcd21dac6067d25

General

Target

0963bc4f2ef5031a2d6c9848951a8740N.exe
Size

281KB
MD5

0963bc4f2ef5031a2d6c9848951a8740
SHA1

3bcf4db3aee7d41f8633aefe6b1be24c4ca0adfa
SHA256

909e82bca80a6c377b2ea644d17c9c20d2eda279b95327191fcd21dac6067d25
SHA512

3249ccd49dd93b18ec659a5f8ab6ea96c57ec5288d2aeea7d07c3a0743c6d9405ff6427d0adb4c6508470e9e1233e42e96df2e70f74fabd464fac816f37bf88a
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfT:boSeGUA5YZazpXUmZhZ6SS

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

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	0963bc4f2ef5031a2d6c9848951a8740N.exe

Executes dropped EXE 2 IoCs

pid	Process
2644	a1punf5t2of.exe
824	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	0963bc4f2ef5031a2d6c9848951a8740N.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 2644 set thread context of 824	2644	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	0963bc4f2ef5031a2d6c9848951a8740N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
824	a1punf5t2of.exe
824	a1punf5t2of.exe
824	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
824	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 2644	4168	0963bc4f2ef5031a2d6c9848951a8740N.exe	96
PID 4168 wrote to memory of 2644	4168	0963bc4f2ef5031a2d6c9848951a8740N.exe	96
PID 4168 wrote to memory of 2644	4168	0963bc4f2ef5031a2d6c9848951a8740N.exe	96
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97
PID 2644 wrote to memory of 824	2644	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\0963bc4f2ef5031a2d6c9848951a8740N.exe
"C:\Users\Admin\AppData\Local\Temp\0963bc4f2ef5031a2d6c9848951a8740N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4168
- 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:2644
- - 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:824

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
281KB

MD5
75278c8555d1eda7b3e57bacdb685339

SHA1
1eb861f2b4f65090d21f1f6f0176a50a37a37abe

SHA256
38e37ac9bee90231c6c400e89fe7bfb5a59a27d778a6ec976cbfa5e827b077e9

SHA512
f403f8109da1cec17e449a5df77e67fe6156be3211a1d4b46947e61ab062d76d3d97213a34972fc2e4f0e29ac1b4861add6ebd667dea6942ac8bce390d264187

Download Submit
memory/824-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-41-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/824-38-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/824-37-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/824-35-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/824-34-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/824-33-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/824-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2644-24-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/2644-22-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/2644-40-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/2644-25-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/2644-26-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/2644-27-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/2644-23-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-21-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-7-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-6-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-5-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-4-0x0000000074EE2000-0x0000000074EE3000-memory.dmp

Filesize
4KB

Download
memory/4168-3-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-2-0x0000000074EE0000-0x0000000075491000-memory.dmp

Filesize
5.7MB

Download
memory/4168-0-0x0000000074EE2000-0x0000000074EE3000-memory.dmp

Filesize
4KB

Download
memory/4168-1-0x0000000074EE0000-0x0000000075491000-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