nanocore | e7b3d88a84692e6bcdec4b41de652c19e48f2b1f89a38bd725c4dd7ed571cf3c

General

Target

INVOICE.pdf.exe
Size

377KB
MD5

bb1c5781336e2d5de359af4170f49201
SHA1

31e82823c806216dd7231140e5c8d51791198c56
SHA256

92771caca06fe18551b241f2fd3e8d6f53c29d48d0e879c93c5458d9fabd082b
SHA512

7329dbea8ebe55ed9896f296ef49f352f9b57b0cd011aa6f3a17c0594f9a128b2b905fd4180dd5e69d1ff77f74641a3930854ffdd9d2e216e7cb2337bae7a1a4

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kachi2020.hopto.org:1918

185.165.153.19:1918

Mutex

d8af0884-edfe-4f5e-9dbe-2b1162970748

Attributes

activate_away_mode
true
backup_connection_host
185.165.153.19
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-16T11:38:10.399131136Z
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
1918
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
d8af0884-edfe-4f5e-9dbe-2b1162970748
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kachi2020.hopto.org
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:

INVOICE.pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe"	INVOICE.pdf.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

INVOICE.pdf.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA INVOICE.pdf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICE.pdf.exe

description pid process target process

PID 4308 set thread context of 1468 4308 INVOICE.pdf.exe INVOICE.pdf.exe

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

description	pid	process	target process
PID 4308 set thread context of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe

Drops file in Program Files directory 2 IoCs

Processes:

INVOICE.pdf.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	INVOICE.pdf.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	INVOICE.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

2708 schtasks.exe
4072 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

INVOICE.pdf.exeINVOICE.pdf.exe

pid process

4308 INVOICE.pdf.exe
1468 INVOICE.pdf.exe
1468 INVOICE.pdf.exe
1468 INVOICE.pdf.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

INVOICE.pdf.exe

pid process

1468 INVOICE.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INVOICE.pdf.exeINVOICE.pdf.exe

description pid process

Token: SeDebugPrivilege 4308 INVOICE.pdf.exe
Token: SeDebugPrivilege 1468 INVOICE.pdf.exe

pid	process
2708	schtasks.exe
4072	schtasks.exe

pid	process
4308	INVOICE.pdf.exe
1468	INVOICE.pdf.exe
1468	INVOICE.pdf.exe
1468	INVOICE.pdf.exe

pid	process
1468	INVOICE.pdf.exe

description	pid	process
Token: SeDebugPrivilege	4308	INVOICE.pdf.exe
Token: SeDebugPrivilege	1468	INVOICE.pdf.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

INVOICE.pdf.exeINVOICE.pdf.exe

description	pid	process	target process
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 4308 wrote to memory of 1468	4308	INVOICE.pdf.exe	INVOICE.pdf.exe
PID 1468 wrote to memory of 2708	1468	INVOICE.pdf.exe	schtasks.exe
PID 1468 wrote to memory of 2708	1468	INVOICE.pdf.exe	schtasks.exe
PID 1468 wrote to memory of 2708	1468	INVOICE.pdf.exe	schtasks.exe
PID 1468 wrote to memory of 4072	1468	INVOICE.pdf.exe	schtasks.exe
PID 1468 wrote to memory of 4072	1468	INVOICE.pdf.exe	schtasks.exe
PID 1468 wrote to memory of 4072	1468	INVOICE.pdf.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4308

C:\Users\Admin\AppData\Local\Temp\INVOICE.pdf.exe
"{path}"
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:1468

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAB48.tmp"
3⤵
- Creates scheduled task(s)
PID:2708

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpACE0.tmp"
3⤵
- Creates scheduled task(s)
PID:4072

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAB48.tmp

Filesize
1KB

MD5
46a278732c7a12fbebd42e9eee271820

SHA1
34e4a6c470cdc96d775194f53f5899fcf1e94ded

SHA256
b9856f361a4256905f438126186003d4cfc264667156eeb4e25e53af580a481d

SHA512
c9e1c5cb38fa7246e78043a59311aece020de29b5c7222c768e368e7d67f19c5dbf7112ed2ac77f79eb047beb3ed79a09b937e45b0e92fe4120e8e06797a66d8

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C:\Users\Admin\AppData\Local\Temp\tmpACE0.tmp

Filesize
1KB

MD5
a246b3561d823177f3586e629f144233

SHA1
0f05d12e55a1d2e5e6a4f307c193882fba093315

SHA256
6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52

SHA512
4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d

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memory/1468-132-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1468-131-0x0000000000000000-mapping.dmp

Download
memory/1468-135-0x0000000074D50000-0x0000000075301000-memory.dmp

Filesize
5.7MB

Download
memory/2708-133-0x0000000000000000-mapping.dmp

Download
memory/4072-136-0x0000000000000000-mapping.dmp

Download
memory/4308-130-0x0000000074D50000-0x0000000075301000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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