nanocore | a8953f2dca5171e14663eefb973c1793decce1dcd6c7baa63081a3d681dbc1c1

General

Target

YWjESQ2siMOeTGY.exe
Size

1.2MB
MD5

2c9847c76f51b2c6a2fe2abe4a9c91f3
SHA1

e3d0facab5b7671ccdac2476a699ab2f817b4479
SHA256

a8953f2dca5171e14663eefb973c1793decce1dcd6c7baa63081a3d681dbc1c1
SHA512

a85c40c7033a7262cf063f38e845d223701b86d155ed29d12e353487384660dbe06d379de6741e778a939ef47ad8370b809f060108b42967394f8aaa7cd45b73
SSDEEP

24576:9A5IeDQd/XJwtr4Xqfbd3TFZNoDoAyfiF1geG68Nq9H9Z2839Y2YXC8bx7wwI3n2:25/QR5wtr4XEbvA+iF1geG68Nq9Hr286

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

win2020.zapto.org:10123

Mutex

34fa688f-c4d0-419c-ba07-1926952dc2c2

Attributes

activate_away_mode
true
backup_connection_host
win2020.zapto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-01-06T07:29:23.375362136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
10123
default_group
built
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
34fa688f-c4d0-419c-ba07-1926952dc2c2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
win2020.zapto.org
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

YWjESQ2siMOeTGY.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	YWjESQ2siMOeTGY.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

YWjESQ2siMOeTGY.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SAAS Monitor = "C:\\Program Files (x86)\\SAAS Monitor\\saasmon.exe"	YWjESQ2siMOeTGY.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

YWjESQ2siMOeTGY.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA YWjESQ2siMOeTGY.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

YWjESQ2siMOeTGY.exe

description pid process target process

PID 452 set thread context of 2092 452 YWjESQ2siMOeTGY.exe YWjESQ2siMOeTGY.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	YWjESQ2siMOeTGY.exe

description	pid	process	target process
PID 452 set thread context of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe

Drops file in Program Files directory 2 IoCs

Processes:

YWjESQ2siMOeTGY.exe

description	ioc	process
File created	C:\Program Files (x86)\SAAS Monitor\saasmon.exe	YWjESQ2siMOeTGY.exe
File opened for modification	C:\Program Files (x86)\SAAS Monitor\saasmon.exe	YWjESQ2siMOeTGY.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3728 schtasks.exe

pid	process
3728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

YWjESQ2siMOeTGY.exepowershell.exepowershell.exeYWjESQ2siMOeTGY.exe

pid	process
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
452	YWjESQ2siMOeTGY.exe
2472	powershell.exe
4360	powershell.exe
452	YWjESQ2siMOeTGY.exe
2472	powershell.exe
4360	powershell.exe
2092	YWjESQ2siMOeTGY.exe
2092	YWjESQ2siMOeTGY.exe
2092	YWjESQ2siMOeTGY.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

YWjESQ2siMOeTGY.exe

pid process

2092 YWjESQ2siMOeTGY.exe

pid	process
2092	YWjESQ2siMOeTGY.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

YWjESQ2siMOeTGY.exepowershell.exepowershell.exeYWjESQ2siMOeTGY.exe

description	pid	process
Token: SeDebugPrivilege	452	YWjESQ2siMOeTGY.exe
Token: SeDebugPrivilege	4360	powershell.exe
Token: SeDebugPrivilege	2472	powershell.exe
Token: SeDebugPrivilege	2092	YWjESQ2siMOeTGY.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

YWjESQ2siMOeTGY.exe

description	pid	process	target process
PID 452 wrote to memory of 2472	452	YWjESQ2siMOeTGY.exe	powershell.exe
PID 452 wrote to memory of 2472	452	YWjESQ2siMOeTGY.exe	powershell.exe
PID 452 wrote to memory of 2472	452	YWjESQ2siMOeTGY.exe	powershell.exe
PID 452 wrote to memory of 4360	452	YWjESQ2siMOeTGY.exe	powershell.exe
PID 452 wrote to memory of 4360	452	YWjESQ2siMOeTGY.exe	powershell.exe
PID 452 wrote to memory of 4360	452	YWjESQ2siMOeTGY.exe	powershell.exe
PID 452 wrote to memory of 3728	452	YWjESQ2siMOeTGY.exe	schtasks.exe
PID 452 wrote to memory of 3728	452	YWjESQ2siMOeTGY.exe	schtasks.exe
PID 452 wrote to memory of 3728	452	YWjESQ2siMOeTGY.exe	schtasks.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe
PID 452 wrote to memory of 2092	452	YWjESQ2siMOeTGY.exe	YWjESQ2siMOeTGY.exe

C:\Users\Admin\AppData\Local\Temp\YWjESQ2siMOeTGY.exe
"C:\Users\Admin\AppData\Local\Temp\YWjESQ2siMOeTGY.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:452

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\YWjESQ2siMOeTGY.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2472

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KAmVjfLsWgBU.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4360

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KAmVjfLsWgBU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7FEE.tmp"
2⤵
- Creates scheduled task(s)
PID:3728

C:\Users\Admin\AppData\Local\Temp\YWjESQ2siMOeTGY.exe
"C:\Users\Admin\AppData\Local\Temp\YWjESQ2siMOeTGY.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
PID:2092

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

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
18KB

MD5
cd1424d143e3a075c9b2913d7507fc12

SHA1
5e6396776416e6b17ae52e3b539dd786f2ac527f

SHA256
32395a5017406588feb9b56bfb6ba68c2c43dba1f9d60a8effb062dc5ddbf9e6

SHA512
fa1743e6a9eb775390008be759335d12712d8b8edc0f22cda638b17488ce5fe47600b6eadecf60eca9c58429f6831b7e797a922af2456632a1adbd14bd97e214

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_flsvnsln.vsv.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7FEE.tmp
Filesize
1KB

MD5
490e340a1fb2706e2e06285e6a802d0c

SHA1
95933327748c6f0f898e1b24e38903e16be996ce

SHA256
58250d0c0ed5f5f94c584372787546942b58a2f9e12327a029702c9210c39ad7

SHA512
f345c8b0fbef4243568058ee2ddc2ff3a0ebb82b976a1c2a3303f9737eb95bf40515b8803abcba0fc7bc4a4b638c1223ec1eece838fcc91131a0cdd7e7ad791b

Download Submit
memory/452-134-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/452-135-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/452-136-0x00000000059E0000-0x00000000059EA000-memory.dmp

Filesize
40KB

Download
memory/452-137-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/452-138-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/452-139-0x0000000007660000-0x00000000076FC000-memory.dmp

Filesize
624KB

Download
memory/452-133-0x0000000000EF0000-0x000000000102E000-memory.dmp

Filesize
1.2MB

Download
memory/2092-172-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2092-216-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download
memory/2092-177-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download
memory/2472-181-0x0000000075080000-0x00000000750CC000-memory.dmp

Filesize
304KB

Download
memory/2472-144-0x0000000004880000-0x00000000048B6000-memory.dmp

Filesize
216KB

Download
memory/2472-210-0x0000000007480000-0x0000000007488000-memory.dmp

Filesize
32KB

Download
memory/2472-207-0x00000000073E0000-0x0000000007476000-memory.dmp

Filesize
600KB

Download
memory/2472-148-0x0000000004960000-0x0000000004970000-memory.dmp

Filesize
64KB

Download
memory/2472-147-0x0000000004960000-0x0000000004970000-memory.dmp

Filesize
64KB

Download
memory/2472-174-0x0000000005E50000-0x0000000005E6E000-memory.dmp

Filesize
120KB

Download
memory/2472-178-0x0000000004960000-0x0000000004970000-memory.dmp

Filesize
64KB

Download
memory/2472-204-0x000000007F320000-0x000000007F330000-memory.dmp

Filesize
64KB

Download
memory/2472-203-0x0000000006F50000-0x0000000006F6A000-memory.dmp

Filesize
104KB

Download
memory/4360-182-0x0000000075080000-0x00000000750CC000-memory.dmp

Filesize
304KB

Download
memory/4360-205-0x000000007FD70000-0x000000007FD80000-memory.dmp

Filesize
64KB

Download
memory/4360-201-0x0000000006A10000-0x0000000006A2E000-memory.dmp

Filesize
120KB

Download
memory/4360-202-0x0000000007DC0000-0x000000000843A000-memory.dmp

Filesize
6.5MB

Download
memory/4360-180-0x0000000006A30000-0x0000000006A62000-memory.dmp

Filesize
200KB

Download
memory/4360-179-0x0000000002D60000-0x0000000002D70000-memory.dmp

Filesize
64KB

Download
memory/4360-206-0x00000000077F0000-0x00000000077FA000-memory.dmp

Filesize
40KB

Download
memory/4360-149-0x00000000055B0000-0x00000000055D2000-memory.dmp

Filesize
136KB

Download
memory/4360-156-0x0000000002D60000-0x0000000002D70000-memory.dmp

Filesize
64KB

Download
memory/4360-208-0x00000000079B0000-0x00000000079BE000-memory.dmp

Filesize
56KB

Download
memory/4360-209-0x0000000007AC0000-0x0000000007ADA000-memory.dmp

Filesize
104KB

Download
memory/4360-163-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download
memory/4360-145-0x0000000005730000-0x0000000005D58000-memory.dmp

Filesize
6.2MB

Download
memory/4360-157-0x0000000005DD0000-0x0000000005E36000-memory.dmp

Filesize
408KB

Download
memory/4360-150-0x0000000002D60000-0x0000000002D70000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads