nanocore | a6e5ce54fa87a5b2a2e2abb4a6d69d9d571fb7668fd2535f319eb9b5ff5b6c6b

General

Target

cotización.PDF___________________________________________.exe
Size

536KB
MD5

e2423a50810971b2cb231ba1d7d1399d
SHA1

33fea78d24d04d52deecc325e9050f18123d247f
SHA256

a6e5ce54fa87a5b2a2e2abb4a6d69d9d571fb7668fd2535f319eb9b5ff5b6c6b
SHA512

65b70be257de713d55225a79f62146e7361d3d010153d8af3ef4ec03fbe747afbbe85bcfcb0f01be1501d37e897713a9948df9be5bb91a58d3ff83fbcf5eef1a

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

trijgrscviomnbvdewacvioplmjytrewwqazxcvty.ydns.eu.ydns.eu:7731

185.29.8.54:7731

Mutex

f9f3c52a-b839-4859-9b79-f360507023f2

Attributes

activate_away_mode
true
backup_connection_host
185.29.8.54
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-12-08T15:19:33.767060636Z
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
7731
default_group
Default
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
f9f3c52a-b839-4859-9b79-f360507023f2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
trijgrscviomnbvdewacvioplmjytrewwqazxcvty.ydns.eu.ydns.eu
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:

cotización.PDF___________________________________________.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NTFS Manager = "C:\\Program Files (x86)\\NTFS Manager\\ntfsmgr.exe"	cotización.PDF___________________________________________.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

cotización.PDF___________________________________________.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

cotización.PDF___________________________________________.exe

description	pid	process	target process
PID 1056 set thread context of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe

Drops file in Program Files directory 2 IoCs

Processes:

cotización.PDF___________________________________________.exe

description	ioc	process
File created	C:\Program Files (x86)\NTFS Manager\ntfsmgr.exe	cotización.PDF___________________________________________.exe
File opened for modification	C:\Program Files (x86)\NTFS Manager\ntfsmgr.exe	cotización.PDF___________________________________________.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

756 schtasks.exe
1020 schtasks.exe

pid	process
756	schtasks.exe
1020	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

cotización.PDF___________________________________________.exe

pid	process
1664	cotización.PDF___________________________________________.exe
1664	cotización.PDF___________________________________________.exe
1664	cotización.PDF___________________________________________.exe
1664	cotización.PDF___________________________________________.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

cotización.PDF___________________________________________.exe

pid process

1664 cotización.PDF___________________________________________.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

cotización.PDF___________________________________________.exe

description pid process

Token: SeDebugPrivilege 1664 cotización.PDF___________________________________________.exe

description	pid	process
Token: SeDebugPrivilege	1664	cotización.PDF___________________________________________.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

cotización.PDF___________________________________________.execotización.PDF___________________________________________.exe

description	pid	process	target process
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1056 wrote to memory of 1664	1056	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 1664 wrote to memory of 756	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 756	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 756	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 756	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 1020	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 1020	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 1020	1664	cotización.PDF___________________________________________.exe	schtasks.exe
PID 1664 wrote to memory of 1020	1664	cotización.PDF___________________________________________.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\cotización.PDF___________________________________________.exe
"C:\Users\Admin\AppData\Local\Temp\cotización.PDF___________________________________________.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\cotización.PDF___________________________________________.exe
  "C:\Users\Admin\AppData\Local\Temp\cotización.PDF___________________________________________.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:1664
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NTFS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE1D7.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:756
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NTFS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE409.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1020

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE1D7.tmp

MD5
5e3a25c35413260e7da12bded14ee718

SHA1
e611049c7b78cdfea897545b6d427f29a863200d

SHA256
9960cb7bc545b49e3615afaba333925f751729cf14f5641ca6fbd56f416a8762

SHA512
09bf5be2735ce1a8af2a2d8853e02742850aed8a11816f25faf5a4377aeddaf7fffac0a3d8ac4ca2414684f68d3c870a2b2678cfd87944389dba277a1d5488ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE409.tmp

MD5
41808f05a9aa523d0ef506d4993f1d6c

SHA1
5a228145decf63ebbbd673c9b7c08a86236a22d4

SHA256
f76bd5da395a725b5998efab9a5d3160657cf2d44a8be83fa24af6ba29acf731

SHA512
7cf71f8fd8dccaa8cf2c724afca3178be8b7a6e0cc6e4b44990e96413bd0dac8248e2bcfa1bb82da05efb6c4b46649722c20ce14cf4a44f1720e18732bd9246e

Download Submit
memory/756-9-0x0000000000000000-mapping.dmp

Download
memory/1020-11-0x0000000000000000-mapping.dmp

Download
memory/1056-2-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/1056-3-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/1056-7-0x0000000000D21000-0x0000000000D22000-memory.dmp

Filesize
4KB

Download
memory/1664-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1664-5-0x000000000041E792-mapping.dmp

Download
memory/1664-8-0x0000000000480000-0x0000000000481000-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