nanocore | 99d52050a4114f00dc1c23793f5f091004c6749cb4558e5fd6cbd881c63007ad

General

Target

4272b5fd4854b198119606db53d662c0N.exe
Size

1.2MB
MD5

4272b5fd4854b198119606db53d662c0
SHA1

bca8b1849e2895a559697b4b235507548a7a215f
SHA256

99d52050a4114f00dc1c23793f5f091004c6749cb4558e5fd6cbd881c63007ad
SHA512

331c5d8cdde9ffe9d56a80137c10f42e79e0587d119e395fc4c4c43a15ec9c901bc3d62534a1eb3c43e74d3bdb6cd879d0334c6de8b13e06c8dcfb9be87707c6
SSDEEP

24576:XAHnh+eWsN3skA4RV1Hom2KXMmHatoI3fr6j2/2+n/a5o:Kh+ZkldoPK8YatoMYo

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

213.184.126.143:1993

Mutex

023e0719-23ff-48a0-a14a-16f92fea10e1

Attributes

activate_away_mode
true
backup_connection_host
213.184.126.143
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-01-21T14:43:07.916268436Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1993
default_group
isreal
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
023e0719-23ff-48a0-a14a-16f92fea10e1
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
213.184.126.143
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

Drops startup file 1 IoCs

Processes:

4272b5fd4854b198119606db53d662c0N.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url	4272b5fd4854b198119606db53d662c0N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.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:

4272b5fd4854b198119606db53d662c0N.exe

description pid process target process

PID 468 set thread context of 2792 468 4272b5fd4854b198119606db53d662c0N.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 468 set thread context of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

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

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

2860 schtasks.exe
2716 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

2792 RegAsm.exe
2792 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2792 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2792 RegAsm.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

4272b5fd4854b198119606db53d662c0N.exe

pid process

468 4272b5fd4854b198119606db53d662c0N.exe
468 4272b5fd4854b198119606db53d662c0N.exe
468 4272b5fd4854b198119606db53d662c0N.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

4272b5fd4854b198119606db53d662c0N.exe

pid process

468 4272b5fd4854b198119606db53d662c0N.exe
468 4272b5fd4854b198119606db53d662c0N.exe
468 4272b5fd4854b198119606db53d662c0N.exe

pid	process
2860	schtasks.exe
2716	schtasks.exe

pid	process
2792	RegAsm.exe
2792	RegAsm.exe

pid	process
2792	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2792	RegAsm.exe

pid	process
468	4272b5fd4854b198119606db53d662c0N.exe
468	4272b5fd4854b198119606db53d662c0N.exe
468	4272b5fd4854b198119606db53d662c0N.exe

pid	process
468	4272b5fd4854b198119606db53d662c0N.exe
468	4272b5fd4854b198119606db53d662c0N.exe
468	4272b5fd4854b198119606db53d662c0N.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

4272b5fd4854b198119606db53d662c0N.exeRegAsm.exe

description	pid	process	target process
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 468 wrote to memory of 2792	468	4272b5fd4854b198119606db53d662c0N.exe	RegAsm.exe
PID 2792 wrote to memory of 2860	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2860	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2860	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2860	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2716	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2716	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2716	2792	RegAsm.exe	schtasks.exe
PID 2792 wrote to memory of 2716	2792	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4272b5fd4854b198119606db53d662c0N.exe
"C:\Users\Admin\AppData\Local\Temp\4272b5fd4854b198119606db53d662c0N.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:468

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- 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:2792

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE5AE.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2860

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE60C.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2716

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE5AE.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE60C.tmp
Filesize
1KB

MD5
447ab194ab36cb1d20078d80e502b1b2

SHA1
a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0

SHA256
8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5

SHA512
49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

Download Submit
memory/468-0-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/2792-1-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2792-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2792-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2792-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2792-10-0x0000000073B92000-0x0000000073B94000-memory.dmp

Filesize
8KB

Download
memory/2792-21-0x0000000073B92000-0x0000000073B94000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads