nanocore | 164a123b62d6c5f64e8c2097948606432a1d114e56959e89feacaadde221518d

General

Target

2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe
Size

204KB
MD5

b36f9fb5e68ac0434d8337eb0f764026
SHA1

ba12b94f72f54c8701379213309d0d9e6399eadb
SHA256

164a123b62d6c5f64e8c2097948606432a1d114e56959e89feacaadde221518d
SHA512

c139ce95e3001401aca0e0ea82d965a220630595559c764377dfb0a607dbbc3196a79dc751fd62efa1763b1ad66df00267c1731933e6e3ac2be86dea4793b191
SSDEEP

3072:ozEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIf8lmsolAIrRuw+mqv9j1MWLQe:oLV6Bta6dtJmakIM5dlDAAD

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

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\NAS Monitor = "C:\\Program Files (x86)\\NAS Monitor\\nasmon.exe"	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.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	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\NAS Monitor\nasmon.exe	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe
File opened for modification	C:\Program Files (x86)\NAS Monitor\nasmon.exe	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe

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	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4284	schtasks.exe
4084	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe
Token: SeDebugPrivilege	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 4084	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe	83
PID 1300 wrote to memory of 4084	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe	83
PID 1300 wrote to memory of 4084	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe	83
PID 1300 wrote to memory of 4284	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe	85
PID 1300 wrote to memory of 4284	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe	85
PID 1300 wrote to memory of 4284	1300	2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-16_b36f9fb5e68ac0434d8337eb0f764026_hiddentear_nanocore.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "NAS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4084
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "NAS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8E08.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp

Filesize
1KB

MD5
6fc47f59de95cf21096c515d62166a97

SHA1
c595bc5505d898ec24035f1e940d2133e5a07467

SHA256
92ac599d384beca69aa54941b626d12d4b8a6c00ee74a1624c071d16f4136896

SHA512
76fecf507002c954ed0b0268ee8161e90dbfafa5765ed49203c132abee9be484adaea16615eeaf3b101598390f28d85294d43ac0161f93aae5746246ffde1323

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8E08.tmp

Filesize
1KB

MD5
3144131f2fe1c35ad2aafff167a26f59

SHA1
959879de38aed11bc08b7725500d2c8c953e80bf

SHA256
d20aeda9cadd332268afc89cbee76f297b00f061bf69a2f558a8d7657e4c41d7

SHA512
27a07c8f953cc4fde9ec348d3f5c4621ab56ff281b778bc7ac95dd808d5f0eea6969c5e4662efc00a6416c8bcf4d8e3892be5c99e603e36f8aa49d2a957206fb

Download Submit
memory/1300-0-0x00000000746F2000-0x00000000746F3000-memory.dmp

Filesize
4KB

Download
memory/1300-1-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1300-2-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1300-10-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1300-11-0x00000000746F2000-0x00000000746F3000-memory.dmp

Filesize
4KB

Download
memory/1300-12-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1300-13-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads