nanocore | 1382324ab20ed1f623fff0f54f292ec594bae43a34be12336604ab2937a63eaf

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2023, 08:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
8bdc506774385fd7ccbc7ae9f57820b9.exe
Size 727KB
Sample230218-ktbbssbf69
SHA256 1382324ab20ed1f623fff0f54f292ec594bae43a34be12336604ab2937a63eaf
MD5 8bdc506774385fd7ccbc7ae9f57820b9
SHA1 de39e38a19446df028de804a3b20052ed2370436
SHA512 c6345258c231d66f144c9c5c2540e9629fafa9d0fa38add1006782246e8da043f20e61277372891d3cb7ff1254a4a5c9d03b24d4cf7a8169b3fd045e9011e005
SSDEEP 12288:RTLWtYqDSuMZJufomsnM/GNUzmBFJ32ckFDFBBJqgXrfk1TkR:dLWtYqDSua4fDsM/BygRNqe8Zk
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

favgrandson7.sytes.net:6696
127.0.0.1:6696

Mutex

cb8b3819-b374-4932-8b1b-2c19c1da9851

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-11-25T08:34:00.714996536Z
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
6696
default_group
FEB13
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
cb8b3819-b374-4932-8b1b-2c19c1da9851
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
favgrandson7.sytes.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

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	8bdc506774385fd7ccbc7ae9f57820b9.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8bdc506774385fd7ccbc7ae9f57820b9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3140 set thread context of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	8bdc506774385fd7ccbc7ae9f57820b9.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	8bdc506774385fd7ccbc7ae9f57820b9.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

pid	Process
1428	schtasks.exe
392	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1920	8bdc506774385fd7ccbc7ae9f57820b9.exe
1920	8bdc506774385fd7ccbc7ae9f57820b9.exe
1920	8bdc506774385fd7ccbc7ae9f57820b9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1920	8bdc506774385fd7ccbc7ae9f57820b9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 3140 wrote to memory of 1920	3140	8bdc506774385fd7ccbc7ae9f57820b9.exe	89
PID 1920 wrote to memory of 1428	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe	91
PID 1920 wrote to memory of 1428	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe	91
PID 1920 wrote to memory of 1428	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe	91
PID 1920 wrote to memory of 392	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe	93
PID 1920 wrote to memory of 392	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe	93
PID 1920 wrote to memory of 392	1920	8bdc506774385fd7ccbc7ae9f57820b9.exe	93

C:\Users\Admin\AppData\Local\Temp\8bdc506774385fd7ccbc7ae9f57820b9.exe
"C:\Users\Admin\AppData\Local\Temp\8bdc506774385fd7ccbc7ae9f57820b9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3140
- C:\Users\Admin\AppData\Local\Temp\8bdc506774385fd7ccbc7ae9f57820b9.exe
  "C:\Users\Admin\AppData\Local\Temp\8bdc506774385fd7ccbc7ae9f57820b9.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
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6254.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1428
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp62D2.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

8bdc506774385fd7ccbc7ae9f57820b9.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8bdc506774385fd7ccbc7ae9f57820b9.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

Submit Download

tmp6254.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp6254.tmp
Size 1KB
SHA256 76f7906eb0d842d21c9b4425f94863087d5b8b3cca872537db8c5c616778e003
MD5 19d1fefa0bc387125d00621174a5fa59
SHA1 90494fd1c9e717f12fc9b777e096a1b18548cebe
SHA512 fdf3efe2073d7e73abdcd4dcb009fdecff559f4249da6b138456b6e182cdf59a193d27812a09e3584eb2ebe8eb586ddc99f106f4ca62035e61aacaaae4d82fcb
MD5 SHA1 SHA512

Submit Download

tmp62D2.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp62D2.tmp
Size 1KB
SHA256 99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa
MD5 2f26d92c1eeead3896820e56ec46f6f1
SHA1 d95533b61eed7d89e4ada56bc566d60e42ac1f61
SHA512 6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892
MD5 SHA1 SHA512

Submit Download

memory/1920-138-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/3140-132-0x0000000000B30000-0x0000000000BEC000-memory.dmp

Download

memory/3140-133-0x0000000005B40000-0x00000000060E4000-memory.dmp

Download

memory/3140-134-0x0000000005590000-0x0000000005622000-memory.dmp

Download

memory/3140-135-0x0000000005640000-0x000000000564A000-memory.dmp

Download

memory/3140-136-0x0000000009430000-0x00000000094CC000-memory.dmp

Download