nanocore | b87ec3d4ae4232b0e9a0e6f42f32717242f8eabaed85c2d380737a3fa17bbf4e

General

Target

Swift Copy.exe
Size

344KB
MD5

ad1c42862f698ded13eee3062d95cb1a
SHA1

33c0ff43434380b87fcfab0ba3ac6cde854271af
SHA256

b87ec3d4ae4232b0e9a0e6f42f32717242f8eabaed85c2d380737a3fa17bbf4e
SHA512

1fa083a7071afc9963103976d7aa4d872b4a980e3570a443aa3af34e90fce44d8151e3e0fa38fdca3159b41779846a1bb566240ef2af828d87a50d894e69205d

Score

10^/10

evasion trojan keylogger stealer spyware nanocore persistence

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.165.153.26:1985

Mutex

2276abda-5081-40bb-9a10-f4ca8116bc08

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-19T23:28:11.122410736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
1985
default_group
Xmen
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
2276abda-5081-40bb-9a10-f4ca8116bc08
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.165.153.26
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegSvcs.exe

description ioc process

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

Processes:

Swift Copy.exe

description pid process target process

PID 240 set thread context of 1536 240 Swift Copy.exe RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1536 RegSvcs.exe
Token: SeDebugPrivilege 1536 RegSvcs.exe
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

1860 schtasks.exe
364 schtasks.exe
1788 schtasks.exe
NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

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

description	pid	process	target process
PID 240 set thread context of 1536	240	Swift Copy.exe	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1536	RegSvcs.exe
Token: SeDebugPrivilege	1536	RegSvcs.exe

pid	process
1860	schtasks.exe
364	schtasks.exe
1788	schtasks.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

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

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.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"	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Swift Copy.exeRegSvcs.exe

description	pid	process	target process
PID 240 wrote to memory of 364	240	Swift Copy.exe	schtasks.exe
PID 240 wrote to memory of 364	240	Swift Copy.exe	schtasks.exe
PID 240 wrote to memory of 364	240	Swift Copy.exe	schtasks.exe
PID 240 wrote to memory of 364	240	Swift Copy.exe	schtasks.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 240 wrote to memory of 1536	240	Swift Copy.exe	RegSvcs.exe
PID 1536 wrote to memory of 1788	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1788	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1788	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1788	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1860	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1860	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1860	1536	RegSvcs.exe	schtasks.exe
PID 1536 wrote to memory of 1860	1536	RegSvcs.exe	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1536 RegSvcs.exe
1536 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1536 RegSvcs.exe

pid	process
1536	RegSvcs.exe
1536	RegSvcs.exe

pid	process
1536	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:240

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LJVQZxzOcR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE09.tmp"
2⤵
- Creates scheduled task(s)
PID:364

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- Drops file in Program Files directory
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
PID:1536

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB22E.tmp"
3⤵
- Creates scheduled task(s)
PID:1788

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB2CB.tmp"
3⤵
- Creates scheduled task(s)
PID:1860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAE09.tmp

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C:\Users\Admin\AppData\Local\Temp\tmpB22E.tmp

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C:\Users\Admin\AppData\Local\Temp\tmpB2CB.tmp

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memory/364-0-0x0000000000000000-mapping.dmp

Download
memory/1536-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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memory/1536-3-0x000000000041E792-mapping.dmp

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memory/1536-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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memory/1536-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1788-6-0x0000000000000000-mapping.dmp

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memory/1860-8-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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