nanocore | 6b801f15c59389ad6370609121b31575ac29200ea9c65a8d9ff045d1782b9e48

General

Target

RECEIPT.EXE
Size

863KB
MD5

5d5f377b2b6e58c34129590d83126fcd
SHA1

13119c08afcc73e20126a3359f227e696090d3cf
SHA256

7a9a1eca3717a1e6baba9df99504b2c92066e6f5652f0315de0776f0c319d3a4
SHA512

a0408ca8f4bdb47aad2d643c8085dd648238779916a1a8471224512eddb535b5068ff2afc98efa7ff8ddff338b5ad6f81eddf4453ff9e4471c05a546fe3568da

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

u852117.nvpn.to:5638

Mutex

c20191a5-cd52-4887-8771-2d1dca5667b7

Attributes

activate_away_mode
true
backup_connection_host
u852117.nvpn.to
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-19T15:09:07.734275836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5638
default_group
BEGINS
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
c20191a5-cd52-4887-8771-2d1dca5667b7
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852117.nvpn.to
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

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	RegSvcs.exe

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

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1696	1060	RECEIPT.EXE	26
PID 1060 wrote to memory of 1696	1060	RECEIPT.EXE	26
PID 1060 wrote to memory of 1696	1060	RECEIPT.EXE	26
PID 1060 wrote to memory of 1696	1060	RECEIPT.EXE	26
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28
PID 1060 wrote to memory of 1392	1060	RECEIPT.EXE	28

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1060 set thread context of 1392	1060	RECEIPT.EXE	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1392	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1392	RegSvcs.exe
1392	RegSvcs.exe
1392	RegSvcs.exe
1392	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1392	RegSvcs.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1696	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\RECEIPT.EXE
"C:\Users\Admin\AppData\Local\Temp\RECEIPT.EXE"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1060
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FsyymdEoVL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF546.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1696
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1392-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1392-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1392-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads