nanocore | eef276e2dae57b59efd34c4b6662df15f1f218acdb5b81108714dc9f915a5f40

General

Target

shipping documents.pdf.exe
Size

620KB
MD5

d6d4e3068736e41cc62527b1328817a2
SHA1

c7b2a7afcd3f5bb62c084ae0f08852564a79519d
SHA256

28e7aedaf2800e319f630be9607b160a327e229a2c96eedf55d5637a77836e74
SHA512

4e17768f97103c78e177fc6fbba395ffa09595e54bdf17dba19455862d48eb21fdecbcf099992d3e0c0eec4a84779f236ff75e5370b3ecadd8efad5613f5937f

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

23.105.131.206:4040

Mutex

336f8da1-0f3e-48f8-851d-a56c179e533d

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-12T14:00:59.313360036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4040
default_group
boss
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
336f8da1-0f3e-48f8-851d-a56c179e533d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
23.105.131.206
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

shipping documents.pdf.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

shipping documents.pdf.exe

description pid process target process

PID 4044 set thread context of 2016 4044 shipping documents.pdf.exe shipping documents.pdf.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 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1852 schtasks.exe

description	pid	process	target process
PID 4044 set thread context of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe

pid	process
1852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

shipping documents.pdf.exeshipping documents.pdf.exe

pid	process
4044	shipping documents.pdf.exe
4044	shipping documents.pdf.exe
2016	shipping documents.pdf.exe
2016	shipping documents.pdf.exe
2016	shipping documents.pdf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

shipping documents.pdf.exe

pid process

2016 shipping documents.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shipping documents.pdf.exeshipping documents.pdf.exe

description pid process

Token: SeDebugPrivilege 4044 shipping documents.pdf.exe
Token: SeDebugPrivilege 2016 shipping documents.pdf.exe

pid	process
2016	shipping documents.pdf.exe

description	pid	process
Token: SeDebugPrivilege	4044	shipping documents.pdf.exe
Token: SeDebugPrivilege	2016	shipping documents.pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

shipping documents.pdf.exe

description	pid	process	target process
PID 4044 wrote to memory of 1852	4044	shipping documents.pdf.exe	schtasks.exe
PID 4044 wrote to memory of 1852	4044	shipping documents.pdf.exe	schtasks.exe
PID 4044 wrote to memory of 1852	4044	shipping documents.pdf.exe	schtasks.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe
PID 4044 wrote to memory of 2016	4044	shipping documents.pdf.exe	shipping documents.pdf.exe

C:\Users\Admin\AppData\Local\Temp\shipping documents.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\shipping documents.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dKiNuzOQZrZEYD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDCE4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1852
- C:\Users\Admin\AppData\Local\Temp\shipping documents.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\shipping documents.pdf.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1852-123-0x0000000000000000-mapping.dmp

Download
memory/2016-135-0x0000000005ED0000-0x0000000005ED3000-memory.dmp

Filesize
12KB

Download
memory/2016-134-0x00000000055B0000-0x00000000055C9000-memory.dmp

Filesize
100KB

Download
memory/2016-133-0x00000000055A0000-0x00000000055A5000-memory.dmp

Filesize
20KB

Download
memory/2016-132-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

Filesize
4KB

Download
memory/2016-125-0x000000000041E792-mapping.dmp

Download
memory/2016-124-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4044-118-0x0000000005000000-0x0000000005092000-memory.dmp

Filesize
584KB

Download
memory/4044-122-0x0000000006C80000-0x0000000006CD4000-memory.dmp

Filesize
336KB

Download
memory/4044-121-0x0000000006AB0000-0x0000000006AB1000-memory.dmp

Filesize
4KB

Download
memory/4044-120-0x0000000005340000-0x0000000005351000-memory.dmp

Filesize
68KB

Download
memory/4044-119-0x0000000005210000-0x0000000005211000-memory.dmp

Filesize
4KB

Download
memory/4044-114-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/4044-117-0x00000000050B0000-0x00000000050B1000-memory.dmp

Filesize
4KB

Download
memory/4044-116-0x00000000055B0000-0x00000000055B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads