nanocore | d96270f6bb0efd49003e83412063f8d86b98fa72093d37a3d5c641350d77b85a

General

Target

L7R2ARlG55CWmzK.exe
Size

680KB
MD5

551435788514a164a546496ca618003d
SHA1

04cbb0838a4150748bfe64e1c1d95ddf555fdcca
SHA256

d96270f6bb0efd49003e83412063f8d86b98fa72093d37a3d5c641350d77b85a
SHA512

a980e94aaff1d98177cc8bad5deb26c8433604b962a02b315c789bb6bbb0d4ae2fa052014778e88e2549082ba9568f4c9ed070054fcc6bb3d6962f030b70bd00
SSDEEP

12288:D8lh7Vqy2Q7JEP3gDgJWvi3yA8yZvHRffDEpfsAIHnK:FxQu3gDoWoO4ZEpfsAkn

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.98.156:12094

Mutex

b5a74077-32bc-418d-b7a6-6ac93b76f33f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-08-06T22:41:35.918511336Z
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
12094
default_group
UCHE FILE
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
b5a74077-32bc-418d-b7a6-6ac93b76f33f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
194.5.98.156
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

Processes:

L7R2ARlG55CWmzK.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NTFS Monitor = "C:\\Program Files (x86)\\NTFS Monitor\\ntfsmon.exe"	L7R2ARlG55CWmzK.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

L7R2ARlG55CWmzK.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA L7R2ARlG55CWmzK.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

L7R2ARlG55CWmzK.exe

description pid process target process

PID 900 set thread context of 1988 900 L7R2ARlG55CWmzK.exe L7R2ARlG55CWmzK.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	L7R2ARlG55CWmzK.exe

description	pid	process	target process
PID 900 set thread context of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe

Drops file in Program Files directory 2 IoCs

Processes:

L7R2ARlG55CWmzK.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\NTFS Monitor\ntfsmon.exe	L7R2ARlG55CWmzK.exe
File created	C:\Program Files (x86)\NTFS Monitor\ntfsmon.exe	L7R2ARlG55CWmzK.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

1632 schtasks.exe
1868 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

L7R2ARlG55CWmzK.exe

pid process

1988 L7R2ARlG55CWmzK.exe
1988 L7R2ARlG55CWmzK.exe
1988 L7R2ARlG55CWmzK.exe
1988 L7R2ARlG55CWmzK.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

L7R2ARlG55CWmzK.exe

pid process

1988 L7R2ARlG55CWmzK.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

L7R2ARlG55CWmzK.exe

description pid process

Token: SeDebugPrivilege 1988 L7R2ARlG55CWmzK.exe

pid	process
1632	schtasks.exe
1868	schtasks.exe

pid	process
1988	L7R2ARlG55CWmzK.exe
1988	L7R2ARlG55CWmzK.exe
1988	L7R2ARlG55CWmzK.exe
1988	L7R2ARlG55CWmzK.exe

pid	process
1988	L7R2ARlG55CWmzK.exe

description	pid	process
Token: SeDebugPrivilege	1988	L7R2ARlG55CWmzK.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

L7R2ARlG55CWmzK.exeL7R2ARlG55CWmzK.exe

description	pid	process	target process
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 900 wrote to memory of 1988	900	L7R2ARlG55CWmzK.exe	L7R2ARlG55CWmzK.exe
PID 1988 wrote to memory of 1632	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1632	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1632	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1632	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1868	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1868	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1868	1988	L7R2ARlG55CWmzK.exe	schtasks.exe
PID 1988 wrote to memory of 1868	1988	L7R2ARlG55CWmzK.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\L7R2ARlG55CWmzK.exe
"C:\Users\Admin\AppData\Local\Temp\L7R2ARlG55CWmzK.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:900
- C:\Users\Admin\AppData\Local\Temp\L7R2ARlG55CWmzK.exe
  "C:\Users\Admin\AppData\Local\Temp\L7R2ARlG55CWmzK.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:1988
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NTFS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB674.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1632
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NTFS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB7BD.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1868

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB674.tmp

Filesize
1KB

MD5
e6b735194d79372f3433c21dccb325ab

SHA1
2529a7629ce46818af5745c7c890ebe925521097

SHA256
482b3152cd9042e3d52b340a90a5c70e6a1f69bb5b10107e38ae0b0031c524df

SHA512
b651d65218427209de7ab77f3bb2eabee7d0d61b8bcb5a1a783966b2aac208d0c9dcd8fea42cb249807060e2c20cbb2a226469867736256b10de4d22e0d364a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB7BD.tmp

Filesize
1KB

MD5
981e126601526eaa5b0ad45c496c4465

SHA1
d610d6a21a8420cc73fcd3e54ddae75a5897b28b

SHA256
11ae277dfa39e7038b782ca6557339e7fe88533fe83705c356a1500a1402d527

SHA512
a59fb704d931ccb7e1ec1a7b98e24ccd8708be529066c6de4b673098cdebef539f7f50d9e051c43954b5a8e7f810862b3a4ede170f131e080dadc3e763ed4bdb

Download Submit
memory/900-55-0x0000000076121000-0x0000000076123000-memory.dmp

Filesize
8KB

Download
memory/900-56-0x0000000000430000-0x0000000000448000-memory.dmp

Filesize
96KB

Download
memory/900-57-0x0000000000450000-0x000000000045C000-memory.dmp

Filesize
48KB

Download
memory/900-58-0x0000000005250000-0x00000000052C4000-memory.dmp

Filesize
464KB

Download
memory/900-59-0x0000000002140000-0x000000000217A000-memory.dmp

Filesize
232KB

Download
memory/900-54-0x0000000000910000-0x00000000009C0000-memory.dmp

Filesize
704KB

Download
memory/1632-73-0x0000000000000000-mapping.dmp

Download
memory/1868-75-0x0000000000000000-mapping.dmp

Download
memory/1988-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-80-0x00000000005D0000-0x00000000005E2000-memory.dmp

Filesize
72KB

Download
memory/1988-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1988-77-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download
memory/1988-78-0x00000000002C0000-0x00000000002DE000-memory.dmp

Filesize
120KB

Download
memory/1988-79-0x0000000000270000-0x000000000027A000-memory.dmp

Filesize
40KB

Download
memory/1988-67-0x000000000041E792-mapping.dmp

Download
memory/1988-81-0x00000000005E0000-0x00000000005FA000-memory.dmp

Filesize
104KB

Download
memory/1988-82-0x0000000000820000-0x000000000082E000-memory.dmp

Filesize
56KB

Download
memory/1988-83-0x0000000000870000-0x0000000000882000-memory.dmp

Filesize
72KB

Download
memory/1988-84-0x00000000009C0000-0x00000000009CE000-memory.dmp

Filesize
56KB

Download
memory/1988-85-0x00000000009D0000-0x00000000009DC000-memory.dmp

Filesize
48KB

Download
memory/1988-86-0x00000000009E0000-0x00000000009F4000-memory.dmp

Filesize
80KB

Download
memory/1988-87-0x0000000000B30000-0x0000000000B40000-memory.dmp

Filesize
64KB

Download
memory/1988-88-0x0000000000B80000-0x0000000000B94000-memory.dmp

Filesize
80KB

Download
memory/1988-89-0x0000000002130000-0x000000000213E000-memory.dmp

Filesize
56KB

Download
memory/1988-90-0x00000000021B0000-0x00000000021DE000-memory.dmp

Filesize
184KB

Download
memory/1988-91-0x0000000002150000-0x0000000002164000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads