nanocore | fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c

General

Target

fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe
Size

653KB
MD5

ff40186a93eebd58bec079d361a6e034
SHA1

720f4e4302c5d25e66b8d61ae3e23561a94689e8
SHA256

fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c
SHA512

0dd04f9aeaee10721e9c97d21c447f4db76fdeb33c2db6e5fb3e49c161f538dc7968c8cc1bb3398b60bf7adaaa7224b255368222794c25988f1c83ad51c81950
SSDEEP

12288:NzYFcuaO6myBw8AKlkR5inauVgsjlcfZWFw72eQUCTUHnjcbEnVvIGc2:COdOZ84Dl6jlEZWFM8UCYPx

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newvic.myvnc.com:1620

maxlogs.webhop.me:1620

Mutex

4539b817-f20b-4ab5-ad58-4d11ec6dc909

Attributes

activate_away_mode
true
backup_connection_host
maxlogs.webhop.me
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-06-02T04:02:03.182534036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1620
default_group
NewBin
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
4539b817-f20b-4ab5-ad58-4d11ec6dc909
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
newvic.myvnc.com
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\PCI Service = "C:\\Program Files (x86)\\PCI Service\\pcisvc.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\PCI Service\pcisvc.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\PCI Service\pcisvc.exe	MSBuild.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe
2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe
2272	MSBuild.exe
2272	MSBuild.exe
2272	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2272	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe
Token: SeDebugPrivilege	2272	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31
PID 2308 wrote to memory of 2272	2308	fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe	31

C:\Users\Admin\AppData\Local\Temp\fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe
"C:\Users\Admin\AppData\Local\Temp\fef7c82b28b56347ef9bb2e3383ccc7e1bcf2e6adb561c30645b9cadfe10740c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2272

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2272-20-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-26-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-18-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-24-0x0000000000490000-0x00000000004AE000-memory.dmp

Filesize
120KB

Download
memory/2272-23-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/2272-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-27-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-25-0x00000000004B0000-0x00000000004BA000-memory.dmp

Filesize
40KB

Download
memory/2272-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-12-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2308-7-0x0000000005920000-0x000000000599A000-memory.dmp

Filesize
488KB

Download
memory/2308-1-0x0000000000ED0000-0x0000000000F7A000-memory.dmp

Filesize
680KB

Download
memory/2308-19-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

Filesize
4KB

Download
memory/2308-6-0x00000000006F0000-0x0000000000700000-memory.dmp

Filesize
64KB

Download
memory/2308-5-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-4-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

Filesize
4KB

Download
memory/2308-3-0x00000000006D0000-0x00000000006EA000-memory.dmp

Filesize
104KB

Download
memory/2308-2-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads