nanocore | f1fddc0cfd9632772ba10b059d83a1bb34b01a81766e61804bc39ca3898c5211

General

Target

nass.exe
Size

710KB
MD5

9430ffb97fd0940e0c6fcaa11d409202
SHA1

17b3a43c427429aa84624ab6a7f21c3621cdc464
SHA256

f1fddc0cfd9632772ba10b059d83a1bb34b01a81766e61804bc39ca3898c5211
SHA512

eeadcb7f802d07d17a31648b23b732beaae11b5a9e35853af47e6d8f3d5f0f84ef3ceb621cf6e236bc1e5e6b6f18ce855446494ed548ceeeb26d9017b91d6b40

Score

10^/10

persistence evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mogs20.hopto.org:1085

185.244.30.251:1085

Mutex

1c8e1b25-da1c-4b7f-872b-7991ecf830f7

Attributes

activate_away_mode
true
backup_connection_host
185.244.30.251
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-26T22:47:50.934251036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1085
default_group
ANGEL RAPHAEL
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
1c8e1b25-da1c-4b7f-872b-7991ecf830f7
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
mogs20.hopto.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

Suspicious use of SetThreadContext 6 IoCs

Processes:

nass.exenass.exenass.exenass.exenass.exenass.exe

description	pid	process	target process
PID 1152 set thread context of 1060	1152	nass.exe	RegAsm.exe
PID 1816 set thread context of 1884	1816	nass.exe	RegAsm.exe
PID 1912 set thread context of 1972	1912	nass.exe	RegAsm.exe
PID 1348 set thread context of 1852	1348	nass.exe	RegAsm.exe
PID 1572 set thread context of 1676	1572	nass.exe	RegAsm.exe
PID 864 set thread context of 1344	864	nass.exe	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

nass.exenass.exenass.exenass.exenass.exeRegAsm.exenass.exe

description	pid	process
Token: SeDebugPrivilege	1152	nass.exe
Token: SeDebugPrivilege	1816	nass.exe
Token: SeDebugPrivilege	1912	nass.exe
Token: SeDebugPrivilege	1348	nass.exe
Token: SeDebugPrivilege	1572	nass.exe
Token: SeDebugPrivilege	1060	RegAsm.exe
Token: SeDebugPrivilege	864	nass.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

1060 RegAsm.exe

pid	process
1060	RegAsm.exe

Adds Run entry to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

nass.exenass.exenass.exenass.exenass.exenass.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegAsm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nass.exe"	nass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegAsm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nass.exe"	nass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegAsm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nass.exe"	nass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegAsm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nass.exe"	nass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegAsm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nass.exe"	nass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegAsm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nass.exe"	nass.exe

Suspicious use of WriteProcessMemory 93 IoCs

Processes:

nass.exenass.exenass.exenass.exenass.exe

description	pid	process	target process
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1056	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1060	1152	nass.exe	RegAsm.exe
PID 1152 wrote to memory of 1816	1152	nass.exe	nass.exe
PID 1152 wrote to memory of 1816	1152	nass.exe	nass.exe
PID 1152 wrote to memory of 1816	1152	nass.exe	nass.exe
PID 1152 wrote to memory of 1816	1152	nass.exe	nass.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1784	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1884	1816	nass.exe	RegAsm.exe
PID 1816 wrote to memory of 1912	1816	nass.exe	nass.exe
PID 1816 wrote to memory of 1912	1816	nass.exe	nass.exe
PID 1816 wrote to memory of 1912	1816	nass.exe	nass.exe
PID 1816 wrote to memory of 1912	1816	nass.exe	nass.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1972	1912	nass.exe	RegAsm.exe
PID 1912 wrote to memory of 1348	1912	nass.exe	nass.exe
PID 1912 wrote to memory of 1348	1912	nass.exe	nass.exe
PID 1912 wrote to memory of 1348	1912	nass.exe	nass.exe
PID 1912 wrote to memory of 1348	1912	nass.exe	nass.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1852	1348	nass.exe	RegAsm.exe
PID 1348 wrote to memory of 1572	1348	nass.exe	nass.exe
PID 1348 wrote to memory of 1572	1348	nass.exe	nass.exe
PID 1348 wrote to memory of 1572	1348	nass.exe	nass.exe
PID 1348 wrote to memory of 1572	1348	nass.exe	nass.exe
PID 1572 wrote to memory of 1676	1572	nass.exe	RegAsm.exe
PID 1572 wrote to memory of 1676	1572	nass.exe	RegAsm.exe

Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

nass.exenass.exenass.exenass.exenass.exenass.exe

pid process

1152 nass.exe
1152 nass.exe
1816 nass.exe
1816 nass.exe
1912 nass.exe
1348 nass.exe
1572 nass.exe
864 nass.exe
864 nass.exe

Suspicious behavior: EnumeratesProcesses 628 IoCs

Processes:

nass.exe

pid	process
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.exe
1152	nass.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

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

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
PID:1152

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:1056

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: GetForegroundWindowSpam
- Checks whether UAC is enabled
PID:1060

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
PID:1816

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
PID:1784

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
PID:1884

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
PID:1912

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
4⤵
PID:1972

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
PID:1348

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
5⤵
PID:1852

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
5⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
PID:1572

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
6⤵
PID:1676

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
6⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious behavior: MapViewOfSection
PID:864

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
7⤵
PID:1400

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
7⤵
PID:1344

C:\Users\Admin\AppData\Local\Temp\nass.exe
"C:\Users\Admin\AppData\Local\Temp\nass.exe"
7⤵
PID:284

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/284-29-0x0000000000000000-mapping.dmp

Download
memory/864-24-0x0000000000000000-mapping.dmp

Download
memory/1060-1-0x000000000041E792-mapping.dmp

Download
memory/1060-2-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1060-3-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1060-0-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1344-26-0x000000000041E792-mapping.dmp

Download
memory/1348-14-0x0000000000000000-mapping.dmp

Download
memory/1572-19-0x0000000000000000-mapping.dmp

Download
memory/1676-21-0x000000000041E792-mapping.dmp

Download
memory/1816-4-0x0000000000000000-mapping.dmp

Download
memory/1852-16-0x000000000041E792-mapping.dmp

Download
memory/1884-6-0x000000000041E792-mapping.dmp

Download
memory/1912-9-0x0000000000000000-mapping.dmp

Download
memory/1972-11-0x000000000041E792-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads