nanocore | e46f2ba9a9263646b8efb81747e0cf5fd1f41a4b2cf1ce6e41982530bc586a71

General

Target

502ef40f2a0aec3170e2c18ea62aba30N.exe
Size

1.2MB
MD5

502ef40f2a0aec3170e2c18ea62aba30
SHA1

40756c0476f8f9ea88e3f9235627600cce2f6a79
SHA256

e46f2ba9a9263646b8efb81747e0cf5fd1f41a4b2cf1ce6e41982530bc586a71
SHA512

c2a92ba5ca3c64d770854921310c4374d17a690640df2b91a4dedba4a9b179fcde8fae9ce630a9d10fc9baf3d5a4574858064f1178a94e4edf29599253a6c92c
SSDEEP

24576:XAHnh+eWsN3skA4RV1Hom2KXMmHatoI3fr6j2/2+n/a5B:Kh+ZkldoPK8YatoMYB

Score

10^/10

nanocore discovery 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
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
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:

502ef40f2a0aec3170e2c18ea62aba30N.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url	502ef40f2a0aec3170e2c18ea62aba30N.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\DNS Manager = "C:\\Program Files (x86)\\DNS Manager\\dnsmgr.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:

502ef40f2a0aec3170e2c18ea62aba30N.exe

description pid process target process

PID 744 set thread context of 1424 744 502ef40f2a0aec3170e2c18ea62aba30N.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 744 set thread context of 1424	744	502ef40f2a0aec3170e2c18ea62aba30N.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\DNS Manager\dnsmgr.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\DNS Manager\dnsmgr.exe	RegAsm.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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:

schtasks.exe502ef40f2a0aec3170e2c18ea62aba30N.exeRegAsm.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	502ef40f2a0aec3170e2c18ea62aba30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

2700 schtasks.exe
5012 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

1424 RegAsm.exe
1424 RegAsm.exe
1424 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

1424 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1424 RegAsm.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

502ef40f2a0aec3170e2c18ea62aba30N.exe

pid process

744 502ef40f2a0aec3170e2c18ea62aba30N.exe
744 502ef40f2a0aec3170e2c18ea62aba30N.exe
744 502ef40f2a0aec3170e2c18ea62aba30N.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

502ef40f2a0aec3170e2c18ea62aba30N.exe

pid process

744 502ef40f2a0aec3170e2c18ea62aba30N.exe
744 502ef40f2a0aec3170e2c18ea62aba30N.exe
744 502ef40f2a0aec3170e2c18ea62aba30N.exe

pid	process
2700	schtasks.exe
5012	schtasks.exe

pid	process
1424	RegAsm.exe
1424	RegAsm.exe
1424	RegAsm.exe

pid	process
1424	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1424	RegAsm.exe

pid	process
744	502ef40f2a0aec3170e2c18ea62aba30N.exe
744	502ef40f2a0aec3170e2c18ea62aba30N.exe
744	502ef40f2a0aec3170e2c18ea62aba30N.exe

pid	process
744	502ef40f2a0aec3170e2c18ea62aba30N.exe
744	502ef40f2a0aec3170e2c18ea62aba30N.exe
744	502ef40f2a0aec3170e2c18ea62aba30N.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

502ef40f2a0aec3170e2c18ea62aba30N.exeRegAsm.exe

description	pid	process	target process
PID 744 wrote to memory of 1424	744	502ef40f2a0aec3170e2c18ea62aba30N.exe	RegAsm.exe
PID 744 wrote to memory of 1424	744	502ef40f2a0aec3170e2c18ea62aba30N.exe	RegAsm.exe
PID 744 wrote to memory of 1424	744	502ef40f2a0aec3170e2c18ea62aba30N.exe	RegAsm.exe
PID 744 wrote to memory of 1424	744	502ef40f2a0aec3170e2c18ea62aba30N.exe	RegAsm.exe
PID 744 wrote to memory of 1424	744	502ef40f2a0aec3170e2c18ea62aba30N.exe	RegAsm.exe
PID 1424 wrote to memory of 2700	1424	RegAsm.exe	schtasks.exe
PID 1424 wrote to memory of 2700	1424	RegAsm.exe	schtasks.exe
PID 1424 wrote to memory of 2700	1424	RegAsm.exe	schtasks.exe
PID 1424 wrote to memory of 5012	1424	RegAsm.exe	schtasks.exe
PID 1424 wrote to memory of 5012	1424	RegAsm.exe	schtasks.exe
PID 1424 wrote to memory of 5012	1424	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\502ef40f2a0aec3170e2c18ea62aba30N.exe
"C:\Users\Admin\AppData\Local\Temp\502ef40f2a0aec3170e2c18ea62aba30N.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:744

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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1424

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DNS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBFA2.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2700

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DNS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC000.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBFA2.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC000.tmp

Filesize
1KB

MD5
bf0287a4e4ec6b543e5f2c020d4f88b2

SHA1
da151b3e3f382ec107053e487b08035616db2694

SHA256
ef704c92466ea7f43c33880380c3fbc8bee8d8ce7a041abefb23fd610baff13c

SHA512
94c9b8f53120a0024031996a91ee54de0a791e49e45a9e2c6e56c51a363b3b3cac206f19b84861a21054bcd3ee8031ab684596502a126fea47352474a4ecd8be

Download Submit
memory/744-0-0x0000000001530000-0x0000000001531000-memory.dmp

Filesize
4KB

Download
memory/1424-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1424-6-0x0000000073BB2000-0x0000000073BB3000-memory.dmp

Filesize
4KB

Download
memory/1424-7-0x0000000073BB0000-0x0000000074161000-memory.dmp

Filesize
5.7MB

Download
memory/1424-8-0x0000000073BB0000-0x0000000074161000-memory.dmp

Filesize
5.7MB

Download
memory/1424-19-0x0000000073BB2000-0x0000000073BB3000-memory.dmp

Filesize
4KB

Download
memory/1424-20-0x0000000073BB0000-0x0000000074161000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads