nanocore | db256170f60efdebefa6673fd5e985a7688c3ea5656aa827a61b9f3c600d0b00

General

Target
1802IMLC2028.exe
Size 706KB
Sample200708-ybdca61bb6
SHA256 db256170f60efdebefa6673fd5e985a7688c3ea5656aa827a61b9f3c600d0b00
MD5 7156fe1fbd0ff21e67df080ba863336f
SHA1 aa8fd714b46421835a02d906f4770b4f8f8c718a
SHA512 da29de24846e4f804efed3e50e656d7634e9d9896690b205f25641ef21c46793da85b872f3141d9342644d437a5a7b496d220294b47de1f05d0e43cbab1ffe47
MD5 SHA1 SHA512

Score

10^/10

persistence evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

INDOMIE.LINKPC.NET:1818
185.140.53.9:1818

Mutex

c2760388-119a-4b64-9007-01bc88004481

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.9
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-19T16:48:01.198372836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1818
default_group
INDOMIE
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
c2760388-119a-4b64-9007-01bc88004481
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
INDOMIE.LINKPC.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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cf.vbs	notepad.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1516	1802IMLC2028.exe
1764	1802IMLC2028.exe
1764	1802IMLC2028.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1516	1802IMLC2028.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1764	1802IMLC2028.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral1/memory/1764-2-0x0000000000400000-0x000000000047F000-memory.dmp	upx
behavioral1/memory/1764-4-0x0000000000400000-0x000000000047F000-memory.dmp	upx
behavioral1/memory/1764-5-0x0000000000400000-0x000000000047F000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1802IMLC2028.exe

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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\WAN Subsystem\wanss.exe	1802IMLC2028.exe
File created	C:\Program Files (x86)\WAN Subsystem\wanss.exe	1802IMLC2028.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 1804	1516	1802IMLC2028.exe	24
PID 1516 wrote to memory of 1804	1516	1802IMLC2028.exe	24
PID 1516 wrote to memory of 1804	1516	1802IMLC2028.exe	24
PID 1516 wrote to memory of 1804	1516	1802IMLC2028.exe	24
PID 1516 wrote to memory of 1804	1516	1802IMLC2028.exe	24
PID 1516 wrote to memory of 1804	1516	1802IMLC2028.exe	24
PID 1516 wrote to memory of 1764	1516	1802IMLC2028.exe	25
PID 1516 wrote to memory of 1764	1516	1802IMLC2028.exe	25
PID 1516 wrote to memory of 1764	1516	1802IMLC2028.exe	25
PID 1516 wrote to memory of 1764	1516	1802IMLC2028.exe	25

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 1764	1516	1802IMLC2028.exe	25

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1764	1802IMLC2028.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Subsystem = "C:\\Program Files (x86)\\WAN Subsystem\\wanss.exe"	1802IMLC2028.exe

C:\Users\Admin\AppData\Local\Temp\1802IMLC2028.exe
"C:\Users\Admin\AppData\Local\Temp\1802IMLC2028.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1516
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  PID:1804
- C:\Users\Admin\AppData\Local\Temp\1802IMLC2028.exe
  "C:\Users\Admin\AppData\Local\Temp\1802IMLC2028.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: GetForegroundWindowSpam
  - Adds Run entry to start application
  PID:1764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1764-2-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1764-4-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1764-5-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1764-6-0x0000000000500000-0x0000000000538000-memory.dmp

Download

memory/1764-7-0x0000000000552000-0x0000000000553000-memory.dmp

Download

memory/1764-8-0x0000000000480000-0x00000000004B3000-memory.dmp

Download

memory/1804-1-0x0000000000090000-0x0000000000091000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads