nanocore | 3c4e4bfa14ccb528331fafd98accf22ca640b3d251f45859c4427df56614bcf2

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 17:35

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General

Target

sever.exe
Size

203KB
MD5

d8158104745439bf75e071b4305b14cf
SHA1

24ad4d25061233c6266ac6c8dfe14e9120ff37e8
SHA256

3c4e4bfa14ccb528331fafd98accf22ca640b3d251f45859c4427df56614bcf2
SHA512

b0072a56bb7a4bbdcfb7a93e14732a49cf726a5b51240f1f612d056c9e06c00b53f776ec31c63ca0e2d1ac868beba1eed4035bd5a119f7acc773b54de7fd98b9
SSDEEP

3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIHSQYusdrK6ymbcYmRriGNnD:MLV6Bta6dtJmakIM51ax0cYgrimD

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

sever.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA sever.exe

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

Processes:

sever.exeschtasks.exe

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2680 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

sever.exe

pid process

2356 sever.exe
2356 sever.exe
2356 sever.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

sever.exe

pid process

2356 sever.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

sever.exe

description pid process

Token: SeDebugPrivilege 2356 sever.exe

pid	process
2680	schtasks.exe

pid	process
2356	sever.exe
2356	sever.exe
2356	sever.exe

pid	process
2356	sever.exe

description	pid	process
Token: SeDebugPrivilege	2356	sever.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

sever.exe

description	pid	process	target process
PID 2356 wrote to memory of 2680	2356	sever.exe	schtasks.exe
PID 2356 wrote to memory of 2680	2356	sever.exe	schtasks.exe
PID 2356 wrote to memory of 2680	2356	sever.exe	schtasks.exe
PID 2356 wrote to memory of 2680	2356	sever.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\sever.exe
"C:\Users\Admin\AppData\Local\Temp\sever.exe"
1⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE05.tmp"
2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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

C:\Users\Admin\AppData\Local\Temp\tmpE05.tmp

Filesize
1KB

MD5
009127cd7edf551083a086d4eec66560

SHA1
98d6877de6d7eb0a93fa58fb0303412c1dda7458

SHA256
71352e7fb7fe395e13d5be76a2d8aa8308d535519d1f7b5a05a09874073bae89

SHA512
b58ea76815d34629cfddc0067e5e5896a328d4baffe7c4c8a45a158cca0be54ade114b2dbf33cab4fd96769b2658b96c4f358b04c182c5fbcf00db8cb7d26054

Download Submit
memory/2356-0-0x0000000074A41000-0x0000000074A42000-memory.dmp

Filesize
4KB

Download
memory/2356-1-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2356-2-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2356-7-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download