nanocore | b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c

General

Target

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe
Size

1.1MB
MD5

c6df0f1fdf3b0d52580f6375537a144a
SHA1

639e22e5ace59d41e039c8e89131f69bc8da96e7
SHA256

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c
SHA512

ce8552ceea68a0c7e6bbef63fcbbe8ce6a2192bb4dfb96c74a93a13a059698fe31e2b42360183649d1dc9cc096441ae741ae98180634d9f588565437a8c1de8d
SSDEEP

24576:GAHnh+eWsN3skA4RV1Hom2KXMmHatdwFWWMX/5:hh+ZkldoPK8YatiFWWMh

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

zaragoza.ddns.net:6318

Mutex

23bc2405-d53d-4763-a563-8ae141477f39

Attributes

activate_away_mode
true
backup_connection_host
zaragoza.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-03-05T18:44:12.253319636Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
6318
default_group
BULKMONEY
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
23bc2405-d53d-4763-a563-8ae141477f39
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
zaragoza.ddns.net
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe

description	pid	process	target process
PID 3868 set thread context of 5004	3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegSvcs.exe
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegSvcs.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/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2892 schtasks.exe
724 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegSvcs.exe

pid process

5004 RegSvcs.exe
5004 RegSvcs.exe
5004 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

5004 RegSvcs.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe

pid process

3868 b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 5004 RegSvcs.exe

pid	process
2892	schtasks.exe
724	schtasks.exe

pid	process
5004	RegSvcs.exe
5004	RegSvcs.exe
5004	RegSvcs.exe

pid	process
5004	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	5004	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe

pid	process
3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe
3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe

pid	process
3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe
3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exeRegSvcs.exe

description	pid	process	target process
PID 3868 wrote to memory of 5004	3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe	RegSvcs.exe
PID 3868 wrote to memory of 5004	3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe	RegSvcs.exe
PID 3868 wrote to memory of 5004	3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe	RegSvcs.exe
PID 3868 wrote to memory of 5004	3868	b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe	RegSvcs.exe
PID 5004 wrote to memory of 724	5004	RegSvcs.exe	schtasks.exe
PID 5004 wrote to memory of 724	5004	RegSvcs.exe	schtasks.exe
PID 5004 wrote to memory of 724	5004	RegSvcs.exe	schtasks.exe
PID 5004 wrote to memory of 2892	5004	RegSvcs.exe	schtasks.exe
PID 5004 wrote to memory of 2892	5004	RegSvcs.exe	schtasks.exe
PID 5004 wrote to memory of 2892	5004	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe
"C:\Users\Admin\AppData\Local\Temp\b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3868

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\b0ad6f779e4a72a0e75bb48eec11e8b2f270c95078054e9559505efce6a25c8c.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5004

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2650.tmp"
3⤵
- Creates scheduled task(s)
PID:724

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp295E.tmp"
3⤵
- Creates scheduled task(s)
PID:2892

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1040 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
1⤵
PID:4764

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2650.tmp
Filesize
1KB

MD5
40b11ef601fb28f9b2e69d36857bf2ec

SHA1
b6454020ad2ceed193f4792b77001d0bd741b370

SHA256
c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

SHA512
e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp295E.tmp
Filesize
1KB

MD5
0339b45ef206f4becc88be0d65e24b9e

SHA1
6503a1851f4ccd8c80a31f96bd7ae40d962c9fad

SHA256
3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83

SHA512
c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551

Download Submit
memory/3868-10-0x0000000000AF0000-0x0000000000AF4000-memory.dmp

Filesize
16KB

Download
memory/5004-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5004-12-0x0000000075622000-0x0000000075623000-memory.dmp

Filesize
4KB

Download
memory/5004-13-0x0000000075620000-0x0000000075BD1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-14-0x0000000075620000-0x0000000075BD1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-22-0x0000000075620000-0x0000000075BD1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-23-0x0000000075622000-0x0000000075623000-memory.dmp

Filesize
4KB

Download
memory/5004-24-0x0000000075620000-0x0000000075BD1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-25-0x0000000075620000-0x0000000075BD1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-26-0x0000000075620000-0x0000000075BD1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads