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\WAN Service = "C:\\Program Files (x86)\\WAN Service\\wansv.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 4684 set thread context of 3116	4684	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)\WAN Service\wansv.exe	cotización.PDF___________________________________________.exe
File opened for modification	C:\Program Files (x86)\WAN Service\wansv.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

3176 schtasks.exe
4284 schtasks.exe

pid	process
3176	schtasks.exe
4284	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

cotización.PDF___________________________________________.exe

pid	process
3116	cotización.PDF___________________________________________.exe
3116	cotización.PDF___________________________________________.exe
3116	cotización.PDF___________________________________________.exe
3116	cotización.PDF___________________________________________.exe
3116	cotización.PDF___________________________________________.exe
3116	cotización.PDF___________________________________________.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

cotización.PDF___________________________________________.exe

pid process

3116 cotización.PDF___________________________________________.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

cotización.PDF___________________________________________.exe

description pid process

Token: SeDebugPrivilege 3116 cotización.PDF___________________________________________.exe

description	pid	process
Token: SeDebugPrivilege	3116	cotización.PDF___________________________________________.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

cotización.PDF___________________________________________.execotización.PDF___________________________________________.exe

description	pid	process	target process
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 4684 wrote to memory of 3116	4684	cotización.PDF___________________________________________.exe	cotización.PDF___________________________________________.exe
PID 3116 wrote to memory of 3176	3116	cotización.PDF___________________________________________.exe	schtasks.exe
PID 3116 wrote to memory of 3176	3116	cotización.PDF___________________________________________.exe	schtasks.exe
PID 3116 wrote to memory of 3176	3116	cotización.PDF___________________________________________.exe	schtasks.exe
PID 3116 wrote to memory of 4284	3116	cotización.PDF___________________________________________.exe	schtasks.exe
PID 3116 wrote to memory of 4284	3116	cotización.PDF___________________________________________.exe	schtasks.exe
PID 3116 wrote to memory of 4284	3116	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:4684

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:3116

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBAE4.tmp"
3⤵
- Creates scheduled task(s)
PID:3176

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBB72.tmp"
3⤵
- Creates scheduled task(s)
PID:4284

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\Microsoft\CLR_v2.0_32\UsageLogs\cotización.PDF___________________________________________.exe.log
MD5
7a092fe194e37b6b7bd183d4fa7a8ea2

SHA1
d3668359a38af96850a055920f19c3382a29da3b

SHA256
a0054de579098aa8d75934e552650cfa8cb70224ecc920ef17aeba7b15277596

SHA512
8a650223bdfbaafb878b3c4970834f21bb87edea554e7fe4c42c6ea05f171c087b0095bca87199a103987dc5d1bc5e7d47004e55587671e90e877ba200f711e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBAE4.tmp
MD5
5e3a25c35413260e7da12bded14ee718

SHA1
e611049c7b78cdfea897545b6d427f29a863200d

SHA256
9960cb7bc545b49e3615afaba333925f751729cf14f5641ca6fbd56f416a8762

SHA512
09bf5be2735ce1a8af2a2d8853e02742850aed8a11816f25faf5a4377aeddaf7fffac0a3d8ac4ca2414684f68d3c870a2b2678cfd87944389dba277a1d5488ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBB72.tmp
MD5
eb527779d4a920bac8c3c59e8f4b4b4c

SHA1
4c9c48fd4ab89a983c87d810577133dc281160b4

SHA256
97a200adfccc855ed435941fe1453a6add1a66b8390d033279c2f1a6a64c26a2

SHA512
a48c1ca2310a4bceacca90d3b8748fdecc0169738905e0bc62a665ab048c1ae6bb801dc99f0f04d85287993c27bfd0a4e7f59d27a1c233b6662d6ba3ca586da0

Download Submit
memory/3116-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3116-5-0x000000000041E792-mapping.dmp

Download
memory/3116-11-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

Filesize
4KB

Download
memory/3176-7-0x0000000000000000-mapping.dmp

Download
memory/4284-9-0x0000000000000000-mapping.dmp

Download
memory/4684-2-0x0000000000E10000-0x0000000000E11000-memory.dmp

Filesize
4KB

Download
memory/4684-3-0x0000000000E11000-0x0000000000E12000-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