nanocore | 50a0b8864a2c4f0f8e325c97d832c747601fb84593a4b74fc705fe18c09da732

General

Target

SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
Size

1.5MB
MD5

fe7ed9839a56c49edf10dd32c562f1cc
SHA1

6c78f76065014ddd8341730b1506be5795987648
SHA256

50a0b8864a2c4f0f8e325c97d832c747601fb84593a4b74fc705fe18c09da732
SHA512

e81601c6ceb7159315a0ef657a8068fedc3fec1fe1710c05f79c5215b3b22b1ac82338553f912beb201021f95471361ec4f3a782f99503c78a0447230bf7e2da
SSDEEP

49152:ml7s93A2eXs63aQ7k1ng7BqgxNskFET3RQloe:ml7s93JeqQ7Qg7zWki3RAb

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brewsterchristophe.ddns.net:5899

194,147,5,75:5899

Mutex

b8aebc29-8c64-444f-99e6-dc4122e9bbfc

Attributes

activate_away_mode
true
backup_connection_host
194,147,5,75
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-29T03:26:40.572298236Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5899
default_group
Default
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
b8aebc29-8c64-444f-99e6-dc4122e9bbfc
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brewsterchristophe.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

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:

bin.exe

pid process

1960 bin.exe

pid	process
1960	bin.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exeRegAsm.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bin = "C:\\Users\\Admin\\AppData\\Local\\bin.exe"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Host = "C:\\Program Files (x86)\\DDP Host\\ddphost.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

bin.exe

description pid process target process

PID 1960 set thread context of 3736 1960 bin.exe RegAsm.exe

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

description	pid	process	target process
PID 1960 set thread context of 3736	1960	bin.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\DDP Host\ddphost.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\DDP Host\ddphost.exe	RegAsm.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1948 schtasks.exe
1776 schtasks.exe
Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

3816 PING.EXE
3892 PING.EXE
4616 PING.EXE

pid	process
1948	schtasks.exe
1776	schtasks.exe

pid	process
3816	PING.EXE
3892	PING.EXE
4616	PING.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes:

SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exebin.exeRegAsm.exe

pid	process
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
1960	bin.exe
1960	bin.exe
3736	RegAsm.exe
3736	RegAsm.exe
3736	RegAsm.exe
3736	RegAsm.exe
3736	RegAsm.exe
3736	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

3736 RegAsm.exe

pid	process
3736	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exebin.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
Token: SeDebugPrivilege	1960	bin.exe
Token: SeDebugPrivilege	3736	RegAsm.exe

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.execmd.execmd.exebin.exeRegAsm.exe

description	pid	process	target process
PID 3740 wrote to memory of 3628	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe	cmd.exe
PID 3740 wrote to memory of 3628	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe	cmd.exe
PID 3740 wrote to memory of 3628	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe	cmd.exe
PID 3628 wrote to memory of 3816	3628	cmd.exe	PING.EXE
PID 3628 wrote to memory of 3816	3628	cmd.exe	PING.EXE
PID 3628 wrote to memory of 3816	3628	cmd.exe	PING.EXE
PID 3740 wrote to memory of 4528	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe	cmd.exe
PID 3740 wrote to memory of 4528	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe	cmd.exe
PID 3740 wrote to memory of 4528	3740	SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe	cmd.exe
PID 4528 wrote to memory of 3892	4528	cmd.exe	PING.EXE
PID 4528 wrote to memory of 3892	4528	cmd.exe	PING.EXE
PID 4528 wrote to memory of 3892	4528	cmd.exe	PING.EXE
PID 3628 wrote to memory of 1508	3628	cmd.exe	reg.exe
PID 3628 wrote to memory of 1508	3628	cmd.exe	reg.exe
PID 3628 wrote to memory of 1508	3628	cmd.exe	reg.exe
PID 4528 wrote to memory of 4616	4528	cmd.exe	PING.EXE
PID 4528 wrote to memory of 4616	4528	cmd.exe	PING.EXE
PID 4528 wrote to memory of 4616	4528	cmd.exe	PING.EXE
PID 4528 wrote to memory of 1960	4528	cmd.exe	bin.exe
PID 4528 wrote to memory of 1960	4528	cmd.exe	bin.exe
PID 4528 wrote to memory of 1960	4528	cmd.exe	bin.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 1960 wrote to memory of 3736	1960	bin.exe	RegAsm.exe
PID 3736 wrote to memory of 1948	3736	RegAsm.exe	schtasks.exe
PID 3736 wrote to memory of 1948	3736	RegAsm.exe	schtasks.exe
PID 3736 wrote to memory of 1948	3736	RegAsm.exe	schtasks.exe
PID 3736 wrote to memory of 1776	3736	RegAsm.exe	schtasks.exe
PID 3736 wrote to memory of 1776	3736	RegAsm.exe	schtasks.exe
PID 3736 wrote to memory of 1776	3736	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3740

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 11 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "bin" /t REG_SZ /d "C:\Users\Admin\AppData\Local\bin.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3628

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 11
3⤵
- Runs ping.exe
PID:3816

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "bin" /t REG_SZ /d "C:\Users\Admin\AppData\Local\bin.exe"
3⤵
- Adds Run key to start application
PID:1508

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 21 > nul && copy "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.AIK.gen.Eldorado.31910.exe" "C:\Users\Admin\AppData\Local\bin.exe" && ping 127.0.0.1 -n 21 > nul && "C:\Users\Admin\AppData\Local\bin.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4528

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 21
3⤵
- Runs ping.exe
PID:3892

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 21
3⤵
- Runs ping.exe
PID:4616

C:\Users\Admin\AppData\Local\bin.exe
"C:\Users\Admin\AppData\Local\bin.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
4⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3736

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE5DC.tmp"
5⤵
- Creates scheduled task(s)
PID:1948

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE679.tmp"
5⤵
- Creates scheduled task(s)
PID:1776

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE5DC.tmp
Filesize
1KB

MD5
48ef7fa9033389ad7929d7a6b9d10298

SHA1
9db6cb7325c8bdf66a15f7b5f34703709a45aeb6

SHA256
0c1b5f67eeb276d1d4205b138ce32bc6149924e02281a2db8e4623a700e88f15

SHA512
ac8bd104ecbacc9bccce9e087f67e5b18072d59367ccd31d4e66132b6baaea520cba5b9b59464483d86abf74826b382c402f12e9a586c99bda8c78a0de33944e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE679.tmp
Filesize
1KB

MD5
2271642ca970891700e3f48439739ed8

SHA1
cd472df2349f7db9e1e460d0ee28acd97b8a8793

SHA256
7aba66abbcb0b13455609174db23aed495a9adbef0e0acd28baa9c92445eda68

SHA512
4669a4ef8ec28cdb852ffc1401576b1bf9a9d837797d7d92bc88c18b3097404f36854e50167b309706fef400cabc43c876569ce2797ba85eb169a2783b8fe807

Download Submit
C:\Users\Admin\AppData\Local\bin.exe
Filesize
1.5MB

MD5
fe7ed9839a56c49edf10dd32c562f1cc

SHA1
6c78f76065014ddd8341730b1506be5795987648

SHA256
50a0b8864a2c4f0f8e325c97d832c747601fb84593a4b74fc705fe18c09da732

SHA512
e81601c6ceb7159315a0ef657a8068fedc3fec1fe1710c05f79c5215b3b22b1ac82338553f912beb201021f95471361ec4f3a782f99503c78a0447230bf7e2da

Download Submit
C:\Users\Admin\AppData\Local\bin.exe
Filesize
1.5MB

MD5
fe7ed9839a56c49edf10dd32c562f1cc

SHA1
6c78f76065014ddd8341730b1506be5795987648

SHA256
50a0b8864a2c4f0f8e325c97d832c747601fb84593a4b74fc705fe18c09da732

SHA512
e81601c6ceb7159315a0ef657a8068fedc3fec1fe1710c05f79c5215b3b22b1ac82338553f912beb201021f95471361ec4f3a782f99503c78a0447230bf7e2da

Download Submit
memory/1508-141-0x0000000000000000-mapping.dmp

Download
memory/1776-151-0x0000000000000000-mapping.dmp

Download
memory/1948-149-0x0000000000000000-mapping.dmp

Download
memory/1960-143-0x0000000000000000-mapping.dmp

Download
memory/1960-146-0x00000000003A0000-0x000000000052E000-memory.dmp

Filesize
1.6MB

Download
memory/3628-137-0x0000000000000000-mapping.dmp

Download
memory/3736-147-0x0000000000000000-mapping.dmp

Download
memory/3736-148-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3736-153-0x0000000006DB0000-0x0000000006E16000-memory.dmp

Filesize
408KB

Download
memory/3740-132-0x00000000002F0000-0x000000000047E000-memory.dmp

Filesize
1.6MB

Download
memory/3740-136-0x0000000006540000-0x000000000654A000-memory.dmp

Filesize
40KB

Download
memory/3740-135-0x00000000063A0000-0x0000000006432000-memory.dmp

Filesize
584KB

Download
memory/3740-134-0x0000000006760000-0x0000000006D04000-memory.dmp

Filesize
5.6MB

Download
memory/3740-133-0x0000000005550000-0x00000000055EC000-memory.dmp

Filesize
624KB

Download
memory/3816-138-0x0000000000000000-mapping.dmp

Download
memory/3892-140-0x0000000000000000-mapping.dmp

Download
memory/4528-139-0x0000000000000000-mapping.dmp

Download
memory/4616-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads