nanocore | 5b27db23756f4ddbd30a3875e30cdbff6cdcc1650a46e3c5a032da6f85cfdceb

General

Target

wndll.exe
Size

310KB
MD5

4e0966f48e6fe2451eae96f7696dcab9
SHA1

f37c0ca9db58a784cf77712bcfaa6cf18233b495
SHA256

5b27db23756f4ddbd30a3875e30cdbff6cdcc1650a46e3c5a032da6f85cfdceb
SHA512

19eb88285c79a199ae9ff0ccc2696973185b66f1b7bf06a6b9c4aebb269eb0da71e37a39017403e4b66adbd4071911febe08dd44e3f8c0f4adb10dfe661e9b9f

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

wndll.exesvhost.exe

pid process

3724 wndll.exe
3724 wndll.exe
3580 svhost.exe
3580 svhost.exe
3580 svhost.exe

pid	process
3724	wndll.exe
3724	wndll.exe
3580	svhost.exe
3580	svhost.exe
3580	svhost.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

wndll.exe

description	pid	process	target process
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 3580	3724	wndll.exe	svhost.exe
PID 3724 wrote to memory of 724	3724	wndll.exe	cmd.exe
PID 3724 wrote to memory of 724	3724	wndll.exe	cmd.exe
PID 3724 wrote to memory of 724	3724	wndll.exe	cmd.exe
PID 3724 wrote to memory of 1052	3724	wndll.exe	cmd.exe
PID 3724 wrote to memory of 1052	3724	wndll.exe	cmd.exe
PID 3724 wrote to memory of 1052	3724	wndll.exe	cmd.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

wndll.exe

description pid process target process

PID 3724 set thread context of 3580 3724 wndll.exe svhost.exe
Executes dropped EXE 1 IoCs

Processes:

svhost.exe

pid process

3580 svhost.exe
Drops startup file 1 IoCs

Processes:

wndll.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.exe.lnk wndll.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

wndll.exesvhost.exe

description pid process

Token: SeDebugPrivilege 3724 wndll.exe
Token: SeDebugPrivilege 3580 svhost.exe
NTFS ADS 1 IoCs

Processes:

cmd.exe

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier cmd.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

svhost.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svhost.exe
NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svhost.exe

pid process

3580 svhost.exe

description	pid	process	target process
PID 3724 set thread context of 3580	3724	wndll.exe	svhost.exe

pid	process
3580	svhost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.exe.lnk	wndll.exe

description	pid	process
Token: SeDebugPrivilege	3724	wndll.exe
Token: SeDebugPrivilege	3580	svhost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier	cmd.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svhost.exe

pid	process
3580	svhost.exe

C:\Users\Admin\AppData\Local\Temp\wndll.exe
"C:\Users\Admin\AppData\Local\Temp\wndll.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
PID:3724

C:\Users\Admin\AppData\Local\Temp\svhost.exe
"C:\Users\Admin\AppData\Local\Temp\svhost.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Checks whether UAC is enabled
- Suspicious behavior: GetForegroundWindowSpam
PID:3580

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/wndll.exe" "%temp%\FolderN\name.exe" /Y
2⤵
PID:724

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\FolderN\name.exe:Zone.Identifier
2⤵
- NTFS ADS
PID:1052

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe

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C:\Users\Admin\AppData\Local\Temp\svhost.exe

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C:\Users\Admin\AppData\Local\Temp\svhost.exe

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memory/724-4-0x0000000000000000-mapping.dmp

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memory/1052-6-0x0000000000000000-mapping.dmp

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memory/3580-1-0x000000000041E792-mapping.dmp

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Analysis

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