nanocore | 10539edea332bd2b0a1c603801a445c2008a8574411803e66b7b79c4b0b8585e

General

Target
VT00040520.exe
Size 480KB
Sample201109-b6ef95ryva
SHA256 10539edea332bd2b0a1c603801a445c2008a8574411803e66b7b79c4b0b8585e
MD5 b072ffa2fb4a29b7bdcc7786e0a88a12
SHA1 013bbe316c39deb7a183925c9362c6b93f1c5920
SHA512 fa3da63d3d19f2177da0497c13ec54174fe671a01496b583effc9ca10ef97ffe5f4cc15f8984737f87bf26ee6194c892a533d94211499fa03cedcee4ddf55da2
MD5 SHA1 SHA512

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

fowok.ddns.net:5656
fowok.duckdns.org:5656

Mutex

7489475d-84cb-4045-9bbe-971598b1bb8d

Attributes

activate_away_mode
true
backup_connection_host
fowok.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-15T01:59:58.454793136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
5656
default_group
fowok
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
7489475d-84cb-4045-9bbe-971598b1bb8d
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
fowok.ddns.net
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\nGMXT = "C:\\EIDQHRRL\\nGMXTr\\nGMXTromn.vbs"	VT00040520.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	VT00040520.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	VT00040520.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 912	1808	VT00040520.exe	29

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
912	InstallUtil.exe
912	InstallUtil.exe
912	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
912	InstallUtil.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1808	VT00040520.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	912	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29
PID 1808 wrote to memory of 912	1808	VT00040520.exe	29

C:\Users\Admin\AppData\Local\Temp\VT00040520.exe
"C:\Users\Admin\AppData\Local\Temp\VT00040520.exe"
1⤵
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
  "C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\InstallUtil.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/912-4-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/912-6-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/912-7-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1808-0-0x0000000073980000-0x000000007406E000-memory.dmp

Download

memory/1808-1-0x0000000000820000-0x0000000000821000-memory.dmp

Download

memory/1808-3-0x0000000000350000-0x000000000039A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads