nanocore | 7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16

General

Target

7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe
Size

281KB
MD5

fec8880b592f75720bc73d1a4107be10
SHA1

247e21a208d5ee43fae4a3fa16b0951af3a1d318
SHA256

7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16
SHA512

e47f4a24236e76256cb8985e25d6234d6ccf71b5a731efa3d23aa3c4bdf2570d73e56fdf543b7f0c4373f63470329b6c8ceff86653933e273709e4710f500a81
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfX:boSeGUA5YZazpXUmZhZ6Si

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

Executes dropped EXE 2 IoCs

pid	Process
1776	a1punf5t2of.exe
2072	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe
1776	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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.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 1776 set thread context of 2072	1776	a1punf5t2of.exe	32

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	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2072	a1punf5t2of.exe
2072	a1punf5t2of.exe
2072	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2072	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 2724 wrote to memory of 1776	2724	7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe	30
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32
PID 1776 wrote to memory of 2072	1776	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe
"C:\Users\Admin\AppData\Local\Temp\7cbdf35095d016ca1865b83c3c60ee8e6a648c9168e586f6bd867f2d30a56d16N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1776
- - 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:2072

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

System Information Discovery

2

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

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

Filesize
281KB

MD5
456a22cd999cd05aaf8c33b9bf5fc61d

SHA1
2810a2f33c7be6175eb1e776393831e37960db45

SHA256
83b5563a0efbefae3be48ef3bae03549857c4c11ddb1a453c0607e64a0aff206

SHA512
60202634f2e164b24ac310530ca6c04323a8882de782653d2a1c7909958724db65500991213c05449ece6411bab229b95ffc7cd184f8b0738ddc038479f07d1c

Download Submit
memory/1776-17-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1776-41-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1776-19-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1776-18-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1776-15-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1776-16-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2072-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2072-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2072-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2072-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2072-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2072-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2072-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-0-0x0000000074B81000-0x0000000074B82000-memory.dmp

Filesize
4KB

Download
memory/2724-2-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-14-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-3-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-4-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-5-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-1-0x0000000074B80000-0x000000007512B000-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