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

4976 RegAsm.exe

pid	process
4976	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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.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 3112 set thread context of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\TCP Service\tcpsvc.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsvc.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4180 3112 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

1952 schtasks.exe
3504 schtasks.exe

pid	pid_target	process	target process
4180	3112	WerFault.exe	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe

pid	process
1952	schtasks.exe
3504	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

pid	process
3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
4976	RegAsm.exe
4976	RegAsm.exe
4976	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

4976 RegAsm.exe

pid	process
4976	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
Token: SeDebugPrivilege	4976	RegAsm.exe
Token: SeDebugPrivilege	4976	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exeRegAsm.exe

description	pid	process	target process
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 3112 wrote to memory of 4976	3112	8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe	RegAsm.exe
PID 4976 wrote to memory of 1952	4976	RegAsm.exe	schtasks.exe
PID 4976 wrote to memory of 1952	4976	RegAsm.exe	schtasks.exe
PID 4976 wrote to memory of 1952	4976	RegAsm.exe	schtasks.exe
PID 4976 wrote to memory of 3504	4976	RegAsm.exe	schtasks.exe
PID 4976 wrote to memory of 3504	4976	RegAsm.exe	schtasks.exe
PID 4976 wrote to memory of 3504	4976	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe
"C:\Users\Admin\AppData\Local\Temp\8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3112

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- 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:4976

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA19F.tmp"
3⤵
- Creates scheduled task(s)
PID:1952

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA20D.tmp"
3⤵
- Creates scheduled task(s)
PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 1356
2⤵
- Program crash
PID:4180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3112 -ip 3112
1⤵
PID:228

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA19F.tmp
Filesize
1KB

MD5
4cd7da0133ff64f40216341d95fe30bb

SHA1
88146cfd7754b988f50e929d876f33dc9916758f

SHA256
37cce77e24a3c3d5ab28c16f726ef6a62c553acd972e256927f69064c4e1cfde

SHA512
fa5b84f207fd9f20b2eace6cda9124e9d718fc80dc0a5fab31507f372d15ba69e1098a26e2e7036ba559ca52a99cfd804ca99ba68bda0a60386a33197722df8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA20D.tmp
Filesize
1KB

MD5
9db6095f31f8b4ae8173fe11424a8dfe

SHA1
4b0655ae95def24a41710ca137649d93bfa49407

SHA256
9911b4513e44521c90c020ddcddea1ddc58095055a72ec638b593bf9ee23aa72

SHA512
5bee977264545a30a2d53e674f54a4066d4529dc9162d46911b9cac957052cdc1ea7c8d60f9c57d3f33db6cb964b1e6bb2347d0e0e2af0a32ac98938c02ffc1c

Download Submit
memory/1952-141-0x0000000000000000-mapping.dmp

Download
memory/3112-133-0x0000000006540000-0x0000000006584000-memory.dmp

Filesize
272KB

Download
memory/3112-130-0x0000000000370000-0x00000000003F6000-memory.dmp

Filesize
536KB

Download
memory/3112-132-0x00000000056D0000-0x0000000005762000-memory.dmp

Filesize
584KB

Download
memory/3112-131-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/3504-143-0x0000000000000000-mapping.dmp

Download
memory/4976-134-0x0000000000000000-mapping.dmp

Download
memory/4976-138-0x00000000005C0000-0x00000000005F8000-memory.dmp

Filesize
224KB

Download
memory/4976-139-0x0000000004BC0000-0x0000000004C5C000-memory.dmp

Filesize
624KB

Download
memory/4976-140-0x0000000004AA0000-0x0000000004AAA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads