nanocore | 74bf4be5cd674b82ed1eee10d1187d16b8abd1c348d2527d8ff34d88fbc01114

General

Target

HEALTHCARE PO 00134536OCT2422.exe
Size

816KB
MD5

09b2235e9a54194838d29a8e92d3d120
SHA1

93d2d74e32e4995f30e038287c5d229264c837fc
SHA256

74bf4be5cd674b82ed1eee10d1187d16b8abd1c348d2527d8ff34d88fbc01114
SHA512

676fdc32a922ee410d34c1fa65c17bd5584c82b4e2d7d9e315115a592a4d8a2e8ad3472452dc5916159ecaa7223d28595b648145e5c6a8f481e95132fc8b4e22
SSDEEP

6144:l7BRdX63JgEWqAi2iu8ifmZzBa34IDz3Dv+Xr3Di0OlqMuyP2X7+tCfUktC0w5T3:zX6Zglqk7WYPfLYr5GeL+kfRX4nYY9

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

198.50.231.134:5498

Mutex

9b971056-14d1-4d11-993c-89c2085bbd7c

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-07-01T11:22:25.531243736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
5498
default_group
miracle
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
9b971056-14d1-4d11-993c-89c2085bbd7c
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
198.50.231.134
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

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:

HEALTHCARE PO 00134536OCT2422.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	HEALTHCARE PO 00134536OCT2422.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

HEALTHCARE PO 00134536OCT2422.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	HEALTHCARE PO 00134536OCT2422.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HEALTHCARE PO 00134536OCT2422.exe

description pid process target process

PID 4956 set thread context of 4828 4956 HEALTHCARE PO 00134536OCT2422.exe HEALTHCARE PO 00134536OCT2422.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

392 schtasks.exe

description	pid	process	target process
PID 4956 set thread context of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe

pid	process
392	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

HEALTHCARE PO 00134536OCT2422.exepowershell.exeHEALTHCARE PO 00134536OCT2422.exe

pid	process
4956	HEALTHCARE PO 00134536OCT2422.exe
4956	HEALTHCARE PO 00134536OCT2422.exe
4956	HEALTHCARE PO 00134536OCT2422.exe
4956	HEALTHCARE PO 00134536OCT2422.exe
4956	HEALTHCARE PO 00134536OCT2422.exe
4956	HEALTHCARE PO 00134536OCT2422.exe
4956	HEALTHCARE PO 00134536OCT2422.exe
1052	powershell.exe
4828	HEALTHCARE PO 00134536OCT2422.exe
4828	HEALTHCARE PO 00134536OCT2422.exe
4828	HEALTHCARE PO 00134536OCT2422.exe
1052	powershell.exe
4828	HEALTHCARE PO 00134536OCT2422.exe
4828	HEALTHCARE PO 00134536OCT2422.exe
4828	HEALTHCARE PO 00134536OCT2422.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

HEALTHCARE PO 00134536OCT2422.exe

pid process

4828 HEALTHCARE PO 00134536OCT2422.exe

pid	process
4828	HEALTHCARE PO 00134536OCT2422.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

HEALTHCARE PO 00134536OCT2422.exepowershell.exeHEALTHCARE PO 00134536OCT2422.exe

description	pid	process
Token: SeDebugPrivilege	4956	HEALTHCARE PO 00134536OCT2422.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	4828	HEALTHCARE PO 00134536OCT2422.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

HEALTHCARE PO 00134536OCT2422.exe

description	pid	process	target process
PID 4956 wrote to memory of 1052	4956	HEALTHCARE PO 00134536OCT2422.exe	powershell.exe
PID 4956 wrote to memory of 1052	4956	HEALTHCARE PO 00134536OCT2422.exe	powershell.exe
PID 4956 wrote to memory of 1052	4956	HEALTHCARE PO 00134536OCT2422.exe	powershell.exe
PID 4956 wrote to memory of 392	4956	HEALTHCARE PO 00134536OCT2422.exe	schtasks.exe
PID 4956 wrote to memory of 392	4956	HEALTHCARE PO 00134536OCT2422.exe	schtasks.exe
PID 4956 wrote to memory of 392	4956	HEALTHCARE PO 00134536OCT2422.exe	schtasks.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe
PID 4956 wrote to memory of 4828	4956	HEALTHCARE PO 00134536OCT2422.exe	HEALTHCARE PO 00134536OCT2422.exe

C:\Users\Admin\AppData\Local\Temp\HEALTHCARE PO 00134536OCT2422.exe
"C:\Users\Admin\AppData\Local\Temp\HEALTHCARE PO 00134536OCT2422.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ESrTlJCU.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1052

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ESrTlJCU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8695.tmp"
2⤵
- Creates scheduled task(s)
PID:392

C:\Users\Admin\AppData\Local\Temp\HEALTHCARE PO 00134536OCT2422.exe
"C:\Users\Admin\AppData\Local\Temp\HEALTHCARE PO 00134536OCT2422.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\HEALTHCARE PO 00134536OCT2422.exe.log

Filesize
581B

MD5
1e6a389e89c3eab14ba221ca1142a418

SHA1
6ac0093b916d7ccaccb4e899330c0676e6e2dc0b

SHA256
ded9c5ca087e450eb47c9c8ff59fa648dd4072f9c51180e17dc0e9162ad71715

SHA512
3bdc3ea4c681264ed29b8ae077441fe28d53d6f909baf94bba4840dc9b6cf5f4f74467298e60316f5fef285835c4ad1ccbaf9e64bbcbcf81518cafb599baeb03

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8695.tmp

Filesize
1KB

MD5
fdd199bbb3aecf1bf9af63380d78f530

SHA1
d54df6e9fd1dc3ac8839bf6386023795e3351ebf

SHA256
a1a3bcb8f58be731cb7a79cf6230cc1927ff7e6c550dea47bc4fa90d0721d7d2

SHA512
f325126ce730060c594f938b843c0df9c4332169cad561066c4015465b35c3eeee4f2522b0582102bf44c15da443987788ba5240c20bc11454eed5c6119936f8

Download Submit
memory/392-135-0x0000000000000000-mapping.dmp

Download
memory/1052-142-0x0000000004E90000-0x00000000054B8000-memory.dmp

Filesize
6.2MB

Download
memory/1052-153-0x0000000007110000-0x000000000711A000-memory.dmp

Filesize
40KB

Download
memory/1052-156-0x00000000073E0000-0x00000000073FA000-memory.dmp

Filesize
104KB

Download
memory/1052-155-0x00000000072D0000-0x00000000072DE000-memory.dmp

Filesize
56KB

Download
memory/1052-157-0x00000000073C0000-0x00000000073C8000-memory.dmp

Filesize
32KB

Download
memory/1052-154-0x0000000007320000-0x00000000073B6000-memory.dmp

Filesize
600KB

Download
memory/1052-141-0x0000000004820000-0x0000000004856000-memory.dmp

Filesize
216KB

Download
memory/1052-152-0x00000000070A0000-0x00000000070BA000-memory.dmp

Filesize
104KB

Download
memory/1052-143-0x0000000004DE0000-0x0000000004E02000-memory.dmp

Filesize
136KB

Download
memory/1052-134-0x0000000000000000-mapping.dmp

Download
memory/1052-145-0x00000000056B0000-0x0000000005716000-memory.dmp

Filesize
408KB

Download
memory/1052-146-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/1052-147-0x0000000005D90000-0x0000000005DAE000-memory.dmp

Filesize
120KB

Download
memory/1052-148-0x0000000006360000-0x0000000006392000-memory.dmp

Filesize
200KB

Download
memory/1052-149-0x0000000071E90000-0x0000000071EDC000-memory.dmp

Filesize
304KB

Download
memory/1052-150-0x0000000006340000-0x000000000635E000-memory.dmp

Filesize
120KB

Download
memory/1052-151-0x00000000076E0000-0x0000000007D5A000-memory.dmp

Filesize
6.5MB

Download
memory/4828-138-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4828-144-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4828-137-0x0000000000000000-mapping.dmp

Download
memory/4828-158-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4956-140-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4956-132-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4956-133-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads