nanocore | 4e4c1dc23a79c047de52afc33110f34b5600d8e83b2ad3d87ff6de5c29f32461

General

Target
a64494bfe6e3a4db500c4e9677419bc3.exe
Size 1.4MB
Sample230403-b9tzeacb79
SHA256 4e4c1dc23a79c047de52afc33110f34b5600d8e83b2ad3d87ff6de5c29f32461
MD5 a64494bfe6e3a4db500c4e9677419bc3
SHA1 9e05a5d77600b6b7af031e12f7f104abd3fea9dc
SHA512 0c0567899f61941b26fcf0c4c984f7a4daa518850fa9068146920d1d4e3063f862c898ab9b96a6dcd0a3e1a5ef3dbeb14bcb815b0e87de3dd16f498432f9cf10
SSDEEP 24576:dA7LDMKOYac6idXy2xwO6cJ0qzaEOhm3Au5ZUYbqU2Kj5N:qMKO3cVMIwbcyIaEk9IN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

moran101.duckdns.org:8050
moran007.duckdns.org:8050

Mutex

d5018187-5a97-4cc3-ae3f-299e8dd0ae7e

Attributes

activate_away_mode
true
backup_connection_host
moran007.duckdns.org
backup_dns_server
moran101.duckdns.org
buffer_size
65535
build_time
2019-02-09T12:45:06.335786736Z
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
8050
default_group
Apr~30
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
d5018187-5a97-4cc3-ae3f-299e8dd0ae7e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
moran101.duckdns.org
primary_dns_server
moran101.duckdns.org
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vbhtghbvfgh.url	a64494bfe6e3a4db500c4e9677419bc3.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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 484	4412	a64494bfe6e3a4db500c4e9677419bc3.exe	83

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

pid	Process
2384	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
484	RegAsm.exe
484	RegAsm.exe
484	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
484	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	484	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4412	a64494bfe6e3a4db500c4e9677419bc3.exe
4412	a64494bfe6e3a4db500c4e9677419bc3.exe
4412	a64494bfe6e3a4db500c4e9677419bc3.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4412	a64494bfe6e3a4db500c4e9677419bc3.exe
4412	a64494bfe6e3a4db500c4e9677419bc3.exe
4412	a64494bfe6e3a4db500c4e9677419bc3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 484	4412	a64494bfe6e3a4db500c4e9677419bc3.exe	83
PID 4412 wrote to memory of 484	4412	a64494bfe6e3a4db500c4e9677419bc3.exe	83
PID 4412 wrote to memory of 484	4412	a64494bfe6e3a4db500c4e9677419bc3.exe	83
PID 4412 wrote to memory of 484	4412	a64494bfe6e3a4db500c4e9677419bc3.exe	83
PID 4412 wrote to memory of 484	4412	a64494bfe6e3a4db500c4e9677419bc3.exe	83
PID 484 wrote to memory of 2384	484	RegAsm.exe	84
PID 484 wrote to memory of 2384	484	RegAsm.exe	84
PID 484 wrote to memory of 2384	484	RegAsm.exe	84

C:\Users\Admin\AppData\Local\Temp\a64494bfe6e3a4db500c4e9677419bc3.exe
"C:\Users\Admin\AppData\Local\Temp\a64494bfe6e3a4db500c4e9677419bc3.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:484
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2645.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2384

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

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp2645.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2645.tmp
Size 1KB
SHA256 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
MD5 c6f0625bf4c1cdfb699980c9243d3b22
SHA1 43de1fe580576935516327f17b5da0c656c72851
SHA512 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969
MD5 SHA1 SHA512

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memory/484-133-0x0000000000340000-0x0000000000378000-memory.dmp

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memory/484-141-0x0000000002590000-0x00000000025A0000-memory.dmp

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memory/484-146-0x0000000002590000-0x00000000025A0000-memory.dmp

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memory/484-147-0x0000000002590000-0x00000000025A0000-memory.dmp

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memory/484-148-0x0000000002590000-0x00000000025A0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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