nanocore | 2b007be0db86373bb33b396b53556fc90b8d972f1dc7e43fe10857bcfe591930

General

Target

INVOICE.exe
Size

257KB
MD5

0b29c9cf3ca1bdda38b97e9fb32c7b4a
SHA1

1ff3b96d090ea2f0151f09231528583be26ef318
SHA256

0e60fbf96ee79935f57b028842bdab9f9b6c08787e0a477f5f20dcd5be5599d7
SHA512

75fa27a78908056a89031121dd496eddf9ac9bbebae8095a491774cd5694cb5327a23bc3a1905f4b09c66502fc0a1e2d538c08a0deae7d83ebd2c968221d958b

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

u852117.nvpn.to:5638

Mutex

c20191a5-cd52-4887-8771-2d1dca5667b7

Attributes

activate_away_mode
true
backup_connection_host
u852117.nvpn.to
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-19T15:09:07.734275836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5638
default_group
BEGINS
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
c20191a5-cd52-4887-8771-2d1dca5667b7
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852117.nvpn.to
primary_dns_server
8.8.8.8
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 whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

INVOICE.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA INVOICE.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICE.exe

description pid process target process

PID 1880 set thread context of 896 1880 INVOICE.exe INVOICE.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

INVOICE.exe

pid process

896 INVOICE.exe
896 INVOICE.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

INVOICE.exe

pid process

896 INVOICE.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

INVOICE.exe

description pid process

Token: SeDebugPrivilege 896 INVOICE.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	INVOICE.exe

description	pid	process	target process
PID 1880 set thread context of 896	1880	INVOICE.exe	INVOICE.exe

pid	process
896	INVOICE.exe
896	INVOICE.exe

pid	process
896	INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	896	INVOICE.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

INVOICE.exe

description	pid	process	target process
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe
PID 1880 wrote to memory of 896	1880	INVOICE.exe	INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1880

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/896-56-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/896-57-0x000000000041E792-mapping.dmp

Download
memory/896-61-0x0000000000402000-0x000000000041E800-memory.dmp

Filesize
114KB

Download
memory/896-60-0x0000000000402000-0x000000000041E800-memory.dmp

Filesize
114KB

Download
memory/896-63-0x0000000074230000-0x00000000747DB000-memory.dmp

Filesize
5.7MB

Download
memory/1880-54-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1880-55-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/1880-58-0x00000000007C0000-0x00000000007EB000-memory.dmp

Filesize
172KB

Download

Analysis

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