nanocore | f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326

Analysis

max time kernel
120s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 20:25

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General

Target

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
Size

552KB
MD5

13c3a282f7df02215d69d591988b0ca0
SHA1

9a2c2b0b3e0777a971a5125eb0ee77539b6cae63
SHA256

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326
SHA512

5f7acd0e1f18ca5993fb99855ec16a2aeb5c5f1c30367929258fde4749adeca6a8a919a8bf1e6017b97c4855013bcc91140b2a7fb10af446e4afe4c385b68472
SSDEEP

12288:mLV6BtpmkRYBvKpxvlY66W0K/r+Iv7Kbi5NX9Ee6E/uY/exGZs:0ApfRQKSnW6IvGbiTuY/was

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

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

Drops file in Program Files directory 2 IoCs

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.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

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

pid	process
4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

pid process

4244 f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

description pid process

Token: SeDebugPrivilege 4244 f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

description	pid	process
Token: SeDebugPrivilege	4244	f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe

C:\Users\Admin\AppData\Local\Temp\f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.exe
"C:\Users\Admin\AppData\Local\Temp\f7ac34a0956dbc3f8017aad235bc668d7f84c240ac3c1780c6d211ec0e74a326N.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:4244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4244-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/4244-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4244-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4244-5-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4244-6-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/4244-7-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4244-8-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4244-9-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download