nanocore | 635980b7987a66efcf6f999a545ea6df8b53ee0953a9c4f8fdb15cadea631223

General

Target

fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
Size

435KB
MD5

80ff3feac7e5fcfff6368bbd5cfa2ae5
SHA1

b1d508b386409cbb6b6ffe94e8f25db1a02f00ff
SHA256

fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c
SHA512

4e353d5356826f1021ee33dd3d55b46ba03cf246bf0c58ebccfcbb597aaf0ddda11360808e9901f9c154ad79fe2c127b559c1c2b2d41b01a1989d002d7602a84
SSDEEP

6144:GlYiFRIM4/8C6uJk07oQ2g+pYSa1/Fe+y0QWSoWQx4sahloJ/vcFTHV4dBJ:GCinIMMH6uNooYB0RnCJDoJ/0FT1E

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kamuchehddhgfgf.ddns.net:1187

37.0.10.22:1187

Mutex

9ff0e8a4-a323-4111-bc49-0daecb63120d

Attributes

activate_away_mode
true
backup_connection_host
37.0.10.22
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-17T00:05:39.048278936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1187
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
9ff0e8a4-a323-4111-bc49-0daecb63120d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kamuchehddhgfgf.ddns.net
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\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.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	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.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	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2692	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
2692	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
2692	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2692	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30
PID 2420 wrote to memory of 2692	2420	fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe	30

C:\Users\Admin\AppData\Local\Temp\fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
"C:\Users\Admin\AppData\Local\Temp\fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe
  "C:\Users\Admin\AppData\Local\Temp\fb81dbb936499b8c5f5aaa64be8e36f964bae687f03298eff7e856c3ac0ea22c.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2692

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

1

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

memory/2420-0-0x0000000074341000-0x0000000074342000-memory.dmp

Filesize
4KB

Download
memory/2420-1-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2420-2-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2420-3-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2420-4-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2420-20-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-23-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-22-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-21-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-26-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-27-0x0000000074340000-0x00000000748EB000-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