nanocore | e50f294da86ca74a28ab00ef44e48d7c0374f4a33e2ed436f9a4ed4e6a01e9b9

General

Target

Invoice#441098.exe
Size

491KB
MD5

b3dd5f1333d92f98738eaaad8b0c4c22
SHA1

c2a8491a8840c92d7725c41c104cbed97900a850
SHA256

e50f294da86ca74a28ab00ef44e48d7c0374f4a33e2ed436f9a4ed4e6a01e9b9
SHA512

a10eec0107a44e5c46cecb4ea7cb5dcd84041ccf73c1197b7010b93e301c4d25ee0e61cc279a512f675d5c9025da6b6004f4596837b57b7088fe8c92b98e152b

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

u852121.nvpn.to:3410

Mutex

6600ee3d-9113-495f-9807-2cbadaeabc68

Attributes

activate_away_mode
true
backup_connection_host
u852121.nvpn.to
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-29T22:15:11.322294736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3410
default_group
usp
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
6600ee3d-9113-495f-9807-2cbadaeabc68
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852121.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1492 set thread context of 928	1492	Invoice#441098.exe	27

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
928	RegSvcs.exe

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

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
788	schtasks.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 788	1492	Invoice#441098.exe	24
PID 1492 wrote to memory of 788	1492	Invoice#441098.exe	24
PID 1492 wrote to memory of 788	1492	Invoice#441098.exe	24
PID 1492 wrote to memory of 788	1492	Invoice#441098.exe	24
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 1028	1492	Invoice#441098.exe	26
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27
PID 1492 wrote to memory of 928	1492	Invoice#441098.exe	27

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1492	Invoice#441098.exe
Token: SeDebugPrivilege	928	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1492	Invoice#441098.exe
928	RegSvcs.exe
928	RegSvcs.exe
928	RegSvcs.exe
928	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Invoice#441098.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice#441098.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:1492
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TRfXcfvYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5AE.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:788
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  PID:1028
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Checks whether UAC is enabled
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  PID:928

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/928-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/928-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/928-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads