nanocore | 8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719

General

Target

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
Size

508KB
MD5

92dee88250716a1b84069e41c47d342e
SHA1

b16fbfb6a7338d546abcd1e4215d611ac7d148fe
SHA256

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719
SHA512

94f7e3f4cb003822f4144df6fc59da4fc5aa087111c00157f26b5a061c07655d5adb82e708807fc32fb8d7c2703e4ad5d94d6d00c02bff6b56cc6c06984cf148

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

zouina1.ddnsfree.com:9191

Mutex

b2ae6bf7-ff72-4f89-86db-259e08f05aeb

Attributes

activate_away_mode
true
backup_connection_host
zouina1.ddnsfree.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-05-10T15:55:47.848866436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
9191
default_group
Room1
enable_debug_mode
true
gc_threshold
1.0485748e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
b2ae6bf7-ff72-4f89-86db-259e08f05aeb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
zouina1.ddnsfree.com
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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:

RegAsm.exe

pid process

828 RegAsm.exe
Loads dropped DLL 2 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

pid process

1948 8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
828 RegAsm.exe

pid	process
828	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegAsm.exe

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

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe

description	pid	process	target process
PID 1948 set thread context of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Subsystem\wpass.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\WPA Subsystem\wpass.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

364 1948 WerFault.exe 8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.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

1388 schtasks.exe
1584 schtasks.exe

pid	pid_target	process	target process
364	1948	WerFault.exe	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe

pid	process
1388	schtasks.exe
1584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

pid	process
1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
828	RegAsm.exe
828	RegAsm.exe
828	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

828 RegAsm.exe

pid	process
828	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
Token: SeDebugPrivilege	828	RegAsm.exe
Token: SeDebugPrivilege	828	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

description	pid	process	target process
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 828	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 1948 wrote to memory of 364	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	WerFault.exe
PID 1948 wrote to memory of 364	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	WerFault.exe
PID 1948 wrote to memory of 364	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	WerFault.exe
PID 1948 wrote to memory of 364	1948	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	WerFault.exe
PID 828 wrote to memory of 1388	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1388	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1388	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1388	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1584	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1584	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1584	828	RegAsm.exe	schtasks.exe
PID 828 wrote to memory of 1584	828	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
"C:\Users\Admin\AppData\Local\Temp\8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- 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:828

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBECE.tmp"
3⤵
- Creates scheduled task(s)
PID:1388

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC093.tmp"
3⤵
- Creates scheduled task(s)
PID:1584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 772
2⤵
- Program crash
PID:364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

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

Filesize
1KB

MD5
4cd7da0133ff64f40216341d95fe30bb

SHA1
88146cfd7754b988f50e929d876f33dc9916758f

SHA256
37cce77e24a3c3d5ab28c16f726ef6a62c553acd972e256927f69064c4e1cfde

SHA512
fa5b84f207fd9f20b2eace6cda9124e9d718fc80dc0a5fab31507f372d15ba69e1098a26e2e7036ba559ca52a99cfd804ca99ba68bda0a60386a33197722df8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC093.tmp

Filesize
1KB

MD5
4365cd1ae65923a319ef2683a45891fe

SHA1
85dde233112660e31c53884aedfbad52e4547e09

SHA256
84b6ce4ba26fa6fb57fa70b9ad191f7c42c71e259897955b5d514385bcd91b58

SHA512
d1bd24f504c5c2ecaa3ae98268ccc2e400ea3e16980c6caf394eadf7738225e4d5578fbe62bbe2de3fe0cb56a0d76bb3fc84cef3b9cd2f3d8be6d0becefdc035

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/364-76-0x0000000000000000-mapping.dmp

Download
memory/828-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-67-0x000000000041E792-mapping.dmp

Download
memory/828-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/828-83-0x0000000000670000-0x000000000067A000-memory.dmp

Filesize
40KB

Download
memory/828-82-0x0000000000650000-0x000000000066E000-memory.dmp

Filesize
120KB

Download
memory/828-81-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/1388-77-0x0000000000000000-mapping.dmp

Download
memory/1584-79-0x0000000000000000-mapping.dmp

Download
memory/1948-56-0x00000000002A0000-0x00000000002C0000-memory.dmp

Filesize
128KB

Download
memory/1948-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1948-57-0x00000000009E0000-0x00000000009EA000-memory.dmp

Filesize
40KB

Download
memory/1948-58-0x0000000000A40000-0x0000000000A4A000-memory.dmp

Filesize
40KB

Download
memory/1948-54-0x00000000000E0000-0x0000000000166000-memory.dmp

Filesize
536KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads