nanocore | 8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023

General

Target

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
Size

597KB
MD5

8a745bd65f32190da2c625f016f14a39
SHA1

969ff934b3e2d0cf97054b97e74597a6fd5a03bf
SHA256

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023
SHA512

109a1aa0112d2da87fbab0f6b492a2670f1efbe38067e719d387c2b02fa8527c83ca8f460e666cb57fd8754780099bd886103f075b5b895aebfd4abf55501393

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

cloudhost.myfirewall.org:5654

Mutex

9845a945-f2ff-4e93-b909-aece664ddb48

Attributes

activate_away_mode
true
backup_connection_host
cloudhost.myfirewall.org
backup_dns_server
cloudhost.myfirewall.org
buffer_size
65535
build_time
2021-06-20T04:14:27.248073436Z
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
5654
default_group
J
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
9845a945-f2ff-4e93-b909-aece664ddb48
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
cloudhost.myfirewall.org
primary_dns_server
cloudhost.myfirewall.org
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:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.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"	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

description	pid	process	target process
PID 2324 set thread context of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

Drops file in Program Files directory 2 IoCs

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
File opened for modification	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.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

4436 schtasks.exe
4640 schtasks.exe

pid	process
4436	schtasks.exe
4640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

pid	process
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

pid process

3848 8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

pid	process
3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

description	pid	process
Token: SeDebugPrivilege	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
Token: SeDebugPrivilege	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe

C:\Users\Admin\AppData\Local\Temp\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
"C:\Users\Admin\AppData\Local\Temp\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324

C:\Users\Admin\AppData\Local\Temp\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
C:\Users\Admin\AppData\Local\Temp\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
2⤵
PID:3436

C:\Users\Admin\AppData\Local\Temp\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
C:\Users\Admin\AppData\Local\Temp\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.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:3848

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1866.tmp"
3⤵
- Creates scheduled task(s)
PID:4436

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp19AF.tmp"
3⤵
- Creates scheduled task(s)
PID:4640

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe.log
MD5
605f809fab8c19729d39d075f7ffdb53

SHA1
c546f877c9bd53563174a90312a8337fdfc5fdd9

SHA256
6904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556

SHA512
82cc12c3186ae23884b8d5c104638c8206272c4389ade56b926dfc1d437b03888159b3c790b188b54d277a262e731927e703e680ea642e1417faee27443fd5b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1866.tmp
MD5
b47ea209ab3cbc31e01315ad5914300a

SHA1
2913ae12805dcaa183c172878ff51a3ceb978bfa

SHA256
bf37a0054cdaea925e08188aeca115adf171a0317d7fc9aba77770f1cbf65847

SHA512
41bce94deb713cad4f68e4e0adcaed170606154511d9b8d6f11f98eac99cae6e7252c3d132337b334ef133a4e5b0e007a72289bc8e64f652046d1288237e77cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp19AF.tmp
MD5
b3b017f9df206021717a11f11d895402

SHA1
e4ea12823af6550ee634536eec1eb14490580a3b

SHA256
654dfce2c28024364e679e1b958f3fb81fc6d29685d534d905d1c83a84351024

SHA512
95666cb81aa1fd1ade04a32f63381ce8bff274d7d300c0b59cbb10a294c4d1eebaa3000365a2000b38793de030044995cf23e623c5e3648d9b00501f97ff9343

Download Submit
memory/2324-115-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2324-117-0x0000000002A20000-0x0000000002AA3000-memory.dmp

Filesize
524KB

Download
memory/2324-118-0x0000000004F30000-0x0000000004F63000-memory.dmp

Filesize
204KB

Download
memory/2324-127-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

Filesize
4KB

Download
memory/3848-126-0x0000000005160000-0x0000000005161000-memory.dmp

Filesize
4KB

Download
memory/3848-125-0x00000000050C0000-0x00000000050C1000-memory.dmp

Filesize
4KB

Download
memory/3848-124-0x00000000055C0000-0x00000000055C1000-memory.dmp

Filesize
4KB

Download
memory/3848-128-0x0000000005040000-0x0000000005041000-memory.dmp

Filesize
4KB

Download
memory/3848-129-0x00000000050C0000-0x00000000055BE000-memory.dmp

Filesize
5.0MB

Download
memory/3848-120-0x000000000041E792-mapping.dmp

Download
memory/3848-119-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3848-134-0x00000000052E0000-0x00000000052E5000-memory.dmp

Filesize
20KB

Download
memory/3848-135-0x00000000060B0000-0x00000000060C9000-memory.dmp

Filesize
100KB

Download
memory/3848-136-0x00000000061E0000-0x00000000061E3000-memory.dmp

Filesize
12KB

Download
memory/4436-130-0x0000000000000000-mapping.dmp

Download
memory/4640-132-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 2324 wrote to memory of 3436	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3436	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3436	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 2324 wrote to memory of 3848	2324	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe
PID 3848 wrote to memory of 4436	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	schtasks.exe
PID 3848 wrote to memory of 4436	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	schtasks.exe
PID 3848 wrote to memory of 4436	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	schtasks.exe
PID 3848 wrote to memory of 4640	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	schtasks.exe
PID 3848 wrote to memory of 4640	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	schtasks.exe
PID 3848 wrote to memory of 4640	3848	8bac59b258ea8ea81eccb35b6e2a4bb78e415c84ea9a7c24a46727d5be8c3023.exe	schtasks.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads