nanocore | e498b7a3b8c47519121d0f94bca46d9d4f4611a348377a1070cad78745e4f1b2

Analysis

max time kernel
15s
max time network
13s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-10-2022 07:52

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General

Target

Setup.exe
Size

21.0MB
MD5

8d2c812110771a601b50c35fc8566deb
SHA1

93d2c215490b9abc362e17a4bab459675828b9e4
SHA256

29dac6dc31f1359a11ebc13f86797b40f8d0c98f5f5a044541479926b37391f2
SHA512

2549842a0ed61d71e91e9e46e0ef7b2b629a059dd72c969a2a5236dd164c457bfb012efc410a41d5c88c1424d7205096fbba55f67826ae8884462b25f20177c0
SSDEEP

12288:LaWzgMg7v3qnCiMErQohh0F4CCJ8lny/QySARMgp77:+aHMv6Corjqny/QyxKe7

Score

10^/10

nanocore 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
Executes dropped EXE 1 IoCs

Processes:

winx86.exe

pid process

4864 winx86.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winx86.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	winx86.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Microsoft Corporation OBZWEOSeYTXNCIIi = "C:\\Users\\Admin\\AppData\\Roaming\\OBZWEOSeYTXNCIIi.exe"	winx86.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\winx86.exe	autoit_exe
C:\Users\Admin\AppData\Roaming\winx86.exe	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

winx86.exe

description pid process target process

PID 4864 set thread context of 1320 4864 winx86.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 4864 set thread context of 1320	4864	winx86.exe	RegAsm.exe

NTFS ADS 4 IoCs

Processes:

Setup.exewinx86.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\winx86.exe:Zone.Identifier:$DATA	Setup.exe
File created	C:\Users\Admin\AppData\Roaming\OBZWEOSeYTXNCIIi.exe\:Zone.Identifier:$DATA	winx86.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\winx86.exe:Zone.Identifier:$DATA	winx86.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\OBZWEOSeYTXNCIIi.exe:Zone.Identifier:$DATA	winx86.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

winx86.exe

pid	process
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe
4864	winx86.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Setup.exewinx86.exe

description	pid	process	target process
PID 780 wrote to memory of 4864	780	Setup.exe	winx86.exe
PID 780 wrote to memory of 4864	780	Setup.exe	winx86.exe
PID 780 wrote to memory of 4864	780	Setup.exe	winx86.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe
PID 4864 wrote to memory of 1320	4864	winx86.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:780

C:\Users\Admin\AppData\Roaming\winx86.exe
C:\Users\Admin\AppData\Roaming\winx86.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4864

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
3⤵
PID:1320

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\OBZWEOSeYTXN
Filesize
217KB

MD5
ed8c4ab837c35cda702208adcfae397f

SHA1
f1c6368f8272d42d8a64685d5075e68ae6d672d9

SHA256
50f12c6d39af77b5567226341c5266430981ee4c2fa173abca1ec45573350448

SHA512
e8ce61cf03221ac6d34d7c116419a8a095c17396ad9e021d395ee07cd7489b649a666fccc526e8aaeca4c59cb4e7ffedd7e9cf59f6f7ede039bf1b42a3adf219

Download Submit
C:\Users\Admin\AppData\Roaming\winx86.exe
Filesize
21.0MB

MD5
8d2c812110771a601b50c35fc8566deb

SHA1
93d2c215490b9abc362e17a4bab459675828b9e4

SHA256
29dac6dc31f1359a11ebc13f86797b40f8d0c98f5f5a044541479926b37391f2

SHA512
2549842a0ed61d71e91e9e46e0ef7b2b629a059dd72c969a2a5236dd164c457bfb012efc410a41d5c88c1424d7205096fbba55f67826ae8884462b25f20177c0

Download Submit
C:\Users\Admin\AppData\Roaming\winx86.exe
Filesize
21.0MB

MD5
8d2c812110771a601b50c35fc8566deb

SHA1
93d2c215490b9abc362e17a4bab459675828b9e4

SHA256
29dac6dc31f1359a11ebc13f86797b40f8d0c98f5f5a044541479926b37391f2

SHA512
2549842a0ed61d71e91e9e46e0ef7b2b629a059dd72c969a2a5236dd164c457bfb012efc410a41d5c88c1424d7205096fbba55f67826ae8884462b25f20177c0

Download Submit
memory/1320-136-0x0000000000000000-mapping.dmp

Download
memory/1320-137-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4864-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads