nanocore | 4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b

General

Target

Payment_Confirmation pdf.exe
Size

436KB
MD5

767f88a961bfbc1b8f8419a32fbade0b
SHA1

5577d0635fca390c305ff560ca80a6ea19ff7c5b
SHA256

4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b
SHA512

c5ebaabcd0ecdd1d0a29e8964b02b8fad9961d7b2f144f0ad9a9b00e94cff1c4656c3154219a08ff062d97ad8d2b083a584cab7dd6e0417f233249ac3a2926c3

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.244.38.210:7008

127.0.0.1:7008

Mutex

8b524be1-f4fe-4386-bd3a-d447c26466aa

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-10-20T01:39:31.219190236Z
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
7008
default_group
Mjx_users
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
8b524be1-f4fe-4386-bd3a-d447c26466aa
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.244.38.210
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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Host = "C:\\Program Files (x86)\\WPA Host\\wpahost.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Payment_Confirmation pdf.exe

description pid process target process

PID 1936 set thread context of 1468 1936 Payment_Confirmation pdf.exe vbc.exe

description	pid	process	target process
PID 1936 set thread context of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe

Drops file in Program Files directory 2 IoCs

Processes:

vbc.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Host\wpahost.exe	vbc.exe
File opened for modification	C:\Program Files (x86)\WPA Host\wpahost.exe	vbc.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

1436 schtasks.exe
1732 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

vbc.exe

pid process

1468 vbc.exe
1468 vbc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vbc.exe

pid process

1468 vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

vbc.exe

description pid process

Token: SeDebugPrivilege 1468 vbc.exe

pid	process
1436	schtasks.exe
1732	schtasks.exe

pid	process
1468	vbc.exe
1468	vbc.exe

pid	process
1468	vbc.exe

description	pid	process
Token: SeDebugPrivilege	1468	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Payment_Confirmation pdf.exevbc.exe

description	pid	process	target process
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1936 wrote to memory of 1468	1936	Payment_Confirmation pdf.exe	vbc.exe
PID 1468 wrote to memory of 1436	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1436	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1436	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1436	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1732	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1732	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1732	1468	vbc.exe	schtasks.exe
PID 1468 wrote to memory of 1732	1468	vbc.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Payment_Confirmation pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Payment_Confirmation pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1936

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Adds Run key to start application
- 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 Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC7F.tmp"
3⤵
- Creates scheduled task(s)
PID:1436

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDD7.tmp"
3⤵
- Creates scheduled task(s)
PID:1732

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC7F.tmp
MD5
808c6e96c170c90d0db522e8947eb2bd

SHA1
44583694c3c23410d637bb96c0df0921363533ad

SHA256
c6b75fb7740d34d55d74b8664ff1ea778638a4916c2b52348ea34de60edd3afc

SHA512
928b85e9fddfd7c93623e954dc53367aaf355f74a14601d77e45612ebdb77f3d6c0fc853e154f91f61e64306361885467c16fc211cf1bbdc023658ad35dba1eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDD7.tmp
MD5
819bdbdac3be050783d203020e6c4c30

SHA1
a373521fceb21cac8b93e55ee48578e40a6e740b

SHA256
0e5dedca6d0d3c50ebcedb5bbf51ef3d434eb6b43da46764205de7636131f053

SHA512
cece1c4d8b4db79fc6e3cd225efaccdf9d2493f28991b1d48439944af38aaa61a215bd00a0beedcbdecc4f1ec5be0843774375a483f3d4a573a3980c54798cbd

Download Submit
memory/1436-13-0x0000000000000000-mapping.dmp

Download
memory/1468-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1468-7-0x000000000041E792-mapping.dmp

Download
memory/1468-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1468-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1468-10-0x0000000073D80000-0x000000007446E000-memory.dmp

Filesize
6.9MB

Download
memory/1468-17-0x0000000000500000-0x0000000000505000-memory.dmp

Filesize
20KB

Download
memory/1468-18-0x0000000000510000-0x0000000000529000-memory.dmp

Filesize
100KB

Download
memory/1468-19-0x0000000000580000-0x0000000000583000-memory.dmp

Filesize
12KB

Download
memory/1732-15-0x0000000000000000-mapping.dmp

Download
memory/1936-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1936-5-0x00000000002F0000-0x0000000000302000-memory.dmp

Filesize
72KB

Download
memory/1936-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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