nanocore | 2378091915eb66b1129dd49b41bf71b66983136a629fe5d8f4602120041ecf10

Reason

Machine shutdown

General

Target

XtasyExecutor.exe
Size

203KB
MD5

ad66fa62ecf3176d68c0d2f5893418da
SHA1

944507be4ebf28f41d641626ac1497aadc3e0a2f
SHA256

2378091915eb66b1129dd49b41bf71b66983136a629fe5d8f4602120041ecf10
SHA512

d1905e0dc6421bcd81e05dcea9d7a0b6fb23fe457f11972667c8c2bd59d593302bcdc74bc09f49b60af512e5602b050dfe11cc98e18c20e27b4fdb3b170ec7de
SSDEEP

3072:gzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIqcIx3O8QjioFn2EryTRJahUB8:gLV6Bta6dtJmakIM5ELiCcdByU0

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
Nanocore family
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\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsvc.exe"	XtasyExecutor.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	XtasyExecutor.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	XtasyExecutor.exe
File opened for modification	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	XtasyExecutor.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	XtasyExecutor.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "162"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe
2312	XtasyExecutor.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2312	XtasyExecutor.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	XtasyExecutor.exe
Token: SeShutdownPrivilege	2312	XtasyExecutor.exe
Token: SeDebugPrivilege	2312	XtasyExecutor.exe
Token: SeDebugPrivilege	2312	XtasyExecutor.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2012	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\XtasyExecutor.exe
"C:\Users\Admin\AppData\Local\Temp\XtasyExecutor.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 behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2312

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3915055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2012

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

C:\Users\Admin\AppData\Roaming\F2CDB6FB-4AB8-4547-9F25-FAD1F7A44351\settings.bin

Filesize
40B

MD5
ae0f5e6ce7122af264ec533c6b15a27b

SHA1
1265a495c42eed76cc043d50c60c23297e76cce1

SHA256
73b0b92179c61c26589b47e9732ce418b07edee3860ee5a2a5fb06f3b8aa9b26

SHA512
dd44c2d24d4e3a0f0b988ad3d04683b5cb128298043134649bbe33b2512ce0c9b1a8e7d893b9f66fbbcdd901e2b0646c4533fb6c0c8c4afcb95a0efb95d446f8

Download Submit
memory/2312-0-0x00000000747D2000-0x00000000747D3000-memory.dmp

Filesize
4KB

Download
memory/2312-1-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2312-2-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2312-5-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2312-9-0x00000000747D2000-0x00000000747D3000-memory.dmp

Filesize
4KB

Download
memory/2312-10-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2312-11-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2312-12-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2312-18-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads