nanocore | e583f88a5a2f0078444fa97cfd8b4357bce832202ec6140ade6239e7687c1850

General

Target

b6fb3e01b32130297ac61b8c33f3bdde.exe
Size

310KB
MD5

b6fb3e01b32130297ac61b8c33f3bdde
SHA1

34c52204bf26caf614b3b0177b2cf6b3f1e1be25
SHA256

e583f88a5a2f0078444fa97cfd8b4357bce832202ec6140ade6239e7687c1850
SHA512

049b6c286f4787357344325df639e03a9eb4590fd3a2d03069c1b4cffec69c5df3da3d5f5ca02306134cd1fc4fcba7245f56a96b5309f0496c6d24b73f4b3d12

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

gold1.dnsupdate.info:4777

gold080.ooguy.com:4777

Mutex

de1252d0-fd95-4cdc-abb5-7b12ebb4706f

Attributes

activate_away_mode
true
backup_connection_host
gold080.ooguy.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-10T22:11:42.883905836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4777
default_group
TMT
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
de1252d0-fd95-4cdc-abb5-7b12ebb4706f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
gold1.dnsupdate.info
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

Executes dropped EXE 1 IoCs

Processes:

svhost.exe

pid process

3776 svhost.exe
NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

pid	process
3776	svhost.exe

Drops startup file 1 IoCs

Processes:

b6fb3e01b32130297ac61b8c33f3bdde.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\namde.exe.lnk	b6fb3e01b32130297ac61b8c33f3bdde.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

svhost.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svhost.exe
NTFS ADS 1 IoCs

Processes:

cmd.exe

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\FolderN\namde.exe:Zone.Identifier cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b6fb3e01b32130297ac61b8c33f3bdde.exesvhost.exe

description pid process

Token: SeDebugPrivilege 1732 b6fb3e01b32130297ac61b8c33f3bdde.exe
Token: SeDebugPrivilege 3776 svhost.exe

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

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\FolderN\namde.exe:Zone.Identifier	cmd.exe

description	pid	process
Token: SeDebugPrivilege	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe
Token: SeDebugPrivilege	3776	svhost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

b6fb3e01b32130297ac61b8c33f3bdde.exesvhost.exe

pid	process
1732	b6fb3e01b32130297ac61b8c33f3bdde.exe
1732	b6fb3e01b32130297ac61b8c33f3bdde.exe
3776	svhost.exe
3776	svhost.exe
3776	svhost.exe
3776	svhost.exe
3776	svhost.exe
3776	svhost.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

b6fb3e01b32130297ac61b8c33f3bdde.exe

description	pid	process	target process
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe
PID 1732 wrote to memory of 2180	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	cmd.exe
PID 1732 wrote to memory of 2180	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	cmd.exe
PID 1732 wrote to memory of 2180	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	cmd.exe
PID 1732 wrote to memory of 2736	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	cmd.exe
PID 1732 wrote to memory of 2736	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	cmd.exe
PID 1732 wrote to memory of 2736	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	cmd.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b6fb3e01b32130297ac61b8c33f3bdde.exe

description pid process target process

PID 1732 set thread context of 3776 1732 b6fb3e01b32130297ac61b8c33f3bdde.exe svhost.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svhost.exe

pid process

3776 svhost.exe

description	pid	process	target process
PID 1732 set thread context of 3776	1732	b6fb3e01b32130297ac61b8c33f3bdde.exe	svhost.exe

pid	process
3776	svhost.exe

C:\Users\Admin\AppData\Local\Temp\b6fb3e01b32130297ac61b8c33f3bdde.exe
"C:\Users\Admin\AppData\Local\Temp\b6fb3e01b32130297ac61b8c33f3bdde.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1732

C:\Users\Admin\AppData\Local\Temp\svhost.exe
"C:\Users\Admin\AppData\Local\Temp\svhost.exe"
2⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
PID:3776

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/b6fb3e01b32130297ac61b8c33f3bdde.exe" "%temp%\FolderN\namde.exe" /Y
2⤵
PID:2180

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\FolderN\namde.exe:Zone.Identifier
2⤵
- NTFS ADS
PID:2736

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\FolderN\namde.exe

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C:\Users\Admin\AppData\Local\Temp\svhost.exe

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C:\Users\Admin\AppData\Local\Temp\svhost.exe

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memory/2180-4-0x0000000000000000-mapping.dmp

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memory/2736-6-0x0000000000000000-mapping.dmp

Download
memory/3776-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3776-1-0x000000000041E792-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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Downloads