nanocore | 492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be

General

Target

NAC0098765434567890-09876.exe
Size

520KB
MD5

9edbd3becd8b9d425eb2be7369f0d0a3
SHA1

34b5780faa24ae2174da5cd453a7e6414c29cb97
SHA256

492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be
SHA512

45b7367f117b2cda487988c42f3f9792d08b038a6f1da2a9be029a92b31adc82ed44e438bd280276e94a97cb4e599d0d4d81a6998aaf5f4f4c13b3fd3c77e9c2

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.222.57.90:4445

Mutex

319d0527-f6c8-4b20-86a3-4c642aa02ef8

Attributes

activate_away_mode
true
backup_connection_host
185.222.57.90
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-08-06T10:35:01.991255736Z
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
4445
default_group
MONEY
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
319d0527-f6c8-4b20-86a3-4c642aa02ef8
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
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
Loads dropped DLL 1 IoCs

Processes:

NAC0098765434567890-09876.exe

pid process

1876 NAC0098765434567890-09876.exe

pid	process
1876	NAC0098765434567890-09876.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NAC0098765434567890-09876.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe"	NAC0098765434567890-09876.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

NAC0098765434567890-09876.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	NAC0098765434567890-09876.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NAC0098765434567890-09876.exe

description pid process target process

PID 1876 set thread context of 3480 1876 NAC0098765434567890-09876.exe NAC0098765434567890-09876.exe

description	pid	process	target process
PID 1876 set thread context of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe

Drops file in Program Files directory 2 IoCs

Processes:

NAC0098765434567890-09876.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	NAC0098765434567890-09876.exe
File opened for modification	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	NAC0098765434567890-09876.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 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

3532 schtasks.exe
3140 schtasks.exe

pid	process
3532	schtasks.exe
3140	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

NAC0098765434567890-09876.exe

pid	process
3480	NAC0098765434567890-09876.exe
3480	NAC0098765434567890-09876.exe
3480	NAC0098765434567890-09876.exe
3480	NAC0098765434567890-09876.exe
3480	NAC0098765434567890-09876.exe
3480	NAC0098765434567890-09876.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

NAC0098765434567890-09876.exe

pid process

3480 NAC0098765434567890-09876.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

NAC0098765434567890-09876.exe

description pid process

Token: SeDebugPrivilege 3480 NAC0098765434567890-09876.exe

description	pid	process
Token: SeDebugPrivilege	3480	NAC0098765434567890-09876.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

NAC0098765434567890-09876.exeNAC0098765434567890-09876.exe

description	pid	process	target process
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 1876 wrote to memory of 3480	1876	NAC0098765434567890-09876.exe	NAC0098765434567890-09876.exe
PID 3480 wrote to memory of 3140	3480	NAC0098765434567890-09876.exe	schtasks.exe
PID 3480 wrote to memory of 3140	3480	NAC0098765434567890-09876.exe	schtasks.exe
PID 3480 wrote to memory of 3140	3480	NAC0098765434567890-09876.exe	schtasks.exe
PID 3480 wrote to memory of 3532	3480	NAC0098765434567890-09876.exe	schtasks.exe
PID 3480 wrote to memory of 3532	3480	NAC0098765434567890-09876.exe	schtasks.exe
PID 3480 wrote to memory of 3532	3480	NAC0098765434567890-09876.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\NAC0098765434567890-09876.exe
"C:\Users\Admin\AppData\Local\Temp\NAC0098765434567890-09876.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\NAC0098765434567890-09876.exe
  "C:\Users\Admin\AppData\Local\Temp\NAC0098765434567890-09876.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:3480
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2A19.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3140
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2C3D.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3532

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2A19.tmp

MD5
0ed9a816fb8f834d1aba34ffe442baaf

SHA1
2061e4611787abcb7caa64491d525dc8d72b695c

SHA256
5aac3b8cbe62a0b06da643035ba0efda34350026115499de735d305fc37b0312

SHA512
a5db4fe849d95b7667a3aa2bde0ad069fa5bfb4dd40f85a7d86ef13b209e9ce724b439304ba6542a1bba3cd1aa20b6e3dd323199dd92bd75d63ca635de1a898e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2C3D.tmp

MD5
b3b017f9df206021717a11f11d895402

SHA1
e4ea12823af6550ee634536eec1eb14490580a3b

SHA256
654dfce2c28024364e679e1b958f3fb81fc6d29685d534d905d1c83a84351024

SHA512
95666cb81aa1fd1ade04a32f63381ce8bff274d7d300c0b59cbb10a294c4d1eebaa3000365a2000b38793de030044995cf23e623c5e3648d9b00501f97ff9343

Download Submit
\Users\Admin\AppData\Local\Temp\nsl1346.tmp\wmrjeycpcw.dll

MD5
fab8d54cd87ac7b0d5eea070d3d19ed5

SHA1
9a3c38ba8c758b2997ea7ebf714c5550a5a300b2

SHA256
caf58aae3c63f642388b36fa02d38f0d9d2f4d1e54559f01db381e0f24589a9b

SHA512
2efa0a885d9af9aec06b38384fb43159ee252989beecf93993ee21a97b4d8cccbbf6c00255daa67b7e97b2e51870009529e45386bb0619be811642dfe933ef03

Download Submit
memory/3140-124-0x0000000000000000-mapping.dmp

Download
memory/3480-118-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3480-120-0x0000000000A01000-0x0000000000A02000-memory.dmp

Filesize
4KB

Download
memory/3480-121-0x0000000000A02000-0x0000000000A04000-memory.dmp

Filesize
8KB

Download
memory/3480-122-0x0000000000A07000-0x0000000000A08000-memory.dmp

Filesize
4KB

Download
memory/3480-123-0x0000000000A08000-0x0000000000A09000-memory.dmp

Filesize
4KB

Download
memory/3480-119-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/3480-117-0x000000000040188B-mapping.dmp

Download
memory/3480-116-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3532-126-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads