nanocore | 6cef6b24f9c34ef5503ed6ba52ded7847882e7599bd39954ff9d3409042eeb74

General

Target

PURCHASE ORDER_PDF____________________________________,,,.exe
Size

422KB
MD5

4f06e6718d72fa923363b59a6268e008
SHA1

f8c9c70f255c8e7813f1923a55f01c7ff4276d7e
SHA256

6cef6b24f9c34ef5503ed6ba52ded7847882e7599bd39954ff9d3409042eeb74
SHA512

92f78a861c6c66e8ddfee75a475226ed09e6200b78353725759c560f846e670b3b926db8bc873df0adc2ea2a5ad03937c640081295c8cd1d9a03b7c4300972bc

Score

10^/10

keylogger trojan stealer spyware nanocore persistence evasion

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ugorji.ddns.net:30945

Mutex

ba2abc2f-5e90-4aeb-9b1a-61434cc52e82

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-13T01:35:16.715365936Z
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
30945
default_group
u new file
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
ba2abc2f-5e90-4aeb-9b1a-61434cc52e82
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ugorji.ddns.net
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

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

1348 schtasks.exe
1864 schtasks.exe
1092 schtasks.exe

pid	process
1348	schtasks.exe
1864	schtasks.exe
1092	schtasks.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exePURCHASE ORDER_PDF____________________________________,,,.exe

description	pid	process	target process
PID 900 wrote to memory of 1092	900	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 900 wrote to memory of 1092	900	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 900 wrote to memory of 1092	900	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 900 wrote to memory of 1092	900	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 900 wrote to memory of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 1660 wrote to memory of 1348	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1348	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1348	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1348	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1864	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1864	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1864	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1864	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	schtasks.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 wrote to memory of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exePURCHASE ORDER_PDF____________________________________,,,.exe

description	pid	process	target process
PID 900 set thread context of 1660	900	PURCHASE ORDER_PDF____________________________________,,,.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
PID 1660 set thread context of 1972	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe
PID 1660 set thread context of 1028	1660	PURCHASE ORDER_PDF____________________________________,,,.exe	vbc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exe

description pid process

Token: SeDebugPrivilege 1660 PURCHASE ORDER_PDF____________________________________,,,.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exe

pid process

1660 PURCHASE ORDER_PDF____________________________________,,,.exe

description	pid	process
Token: SeDebugPrivilege	1660	PURCHASE ORDER_PDF____________________________________,,,.exe

Drops file in Program Files directory 2 IoCs

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exe

description	ioc	process
File created	C:\Program Files (x86)\WAN Subsystem\wanss.exe	PURCHASE ORDER_PDF____________________________________,,,.exe
File opened for modification	C:\Program Files (x86)\WAN Subsystem\wanss.exe	PURCHASE ORDER_PDF____________________________________,,,.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Subsystem = "C:\\Program Files (x86)\\WAN Subsystem\\wanss.exe"	PURCHASE ORDER_PDF____________________________________,,,.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exe

pid	process
1660	PURCHASE ORDER_PDF____________________________________,,,.exe
1660	PURCHASE ORDER_PDF____________________________________,,,.exe
1660	PURCHASE ORDER_PDF____________________________________,,,.exe
1660	PURCHASE ORDER_PDF____________________________________,,,.exe
1660	PURCHASE ORDER_PDF____________________________________,,,.exe

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

PURCHASE ORDER_PDF____________________________________,,,.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	PURCHASE ORDER_PDF____________________________________,,,.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_PDF____________________________________,,,.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_PDF____________________________________,,,.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:900

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LnJAltu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp980A.tmp"
2⤵
- Creates scheduled task(s)
PID:1092

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_PDF____________________________________,,,.exe
"{path}"
2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: GetForegroundWindowSpam
- Drops file in Program Files directory
- Adds Run entry to start application
- Suspicious behavior: EnumeratesProcesses
- Checks whether UAC is enabled
PID:1660

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9CCB.tmp"
3⤵
- Creates scheduled task(s)
PID:1348

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9D58.tmp"
3⤵
- Creates scheduled task(s)
PID:1864

\??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
"c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\saphydxi.ok0"
3⤵
PID:1972

\??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
"c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\zk03kjti.ug4"
3⤵
PID:1028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Scripting

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

Scripting

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\saphydxi.ok0

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C:\Users\Admin\AppData\Local\Temp\tmp980A.tmp

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C:\Users\Admin\AppData\Local\Temp\tmp9CCB.tmp

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C:\Users\Admin\AppData\Local\Temp\tmp9D58.tmp

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C:\Users\Admin\AppData\Local\Temp\zk03kjti.ug4

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memory/900-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1028-18-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1028-17-0x0000000000442628-mapping.dmp

Download
memory/1028-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1092-2-0x0000000000000000-mapping.dmp

Download
memory/1348-8-0x0000000000000000-mapping.dmp

Download
memory/1660-5-0x000000000041E792-mapping.dmp

Download
memory/1660-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1660-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1660-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1864-10-0x0000000000000000-mapping.dmp

Download
memory/1972-13-0x0000000000411654-mapping.dmp

Download
memory/1972-14-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1972-12-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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