nanocore | 6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057

General

Target

6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
Size

254KB
MD5

0676798cb430804268472910ad8a1750
SHA1

82c2dc99275e7ca0935be96a9fab6ca7b976aed0
SHA256

6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057
SHA512

722c1160042d11a98248fa4e17596f880dd5e7a6e95b832bc6f2b0f5c14ca067b484f2bdc5c0480569c2e33472ab5cd65250c471c5cda5840c932b0bb118a2f9
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQqC:EeGUA5YZazpXUmZhJC

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
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

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

Executes dropped EXE 2 IoCs

pid	Process
2852	a1punf5t2of.exe
2616	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
2852	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2616	2852	a1punf5t2of.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2616	a1punf5t2of.exe
2616	a1punf5t2of.exe
2616	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2616	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2568 wrote to memory of 2852	2568	6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe	31
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2616	2852	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe
"C:\Users\Admin\AppData\Local\Temp\6fe2af6d9f517881181f96dfc1301369a8c6c26ed83fc0cc9a9e5fd2c7590057N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
254KB

MD5
e361b6d014b46d5d55bec3d62b74fd4a

SHA1
48978af5850c25a15ed26479d75b3a2cd530944b

SHA256
d1156c0cd73b3d94a3d68e03e3e20200e7209ff90da3d4e77c3fe27993e1c71a

SHA512
260b745aba490b1113cc098b7c16d4d345b7638cfca2c1df52692d3a7c17390e98f51a1fe81c6ce52de5431a85019c505828e3bb1cc1f9a1ce1fcd6e9d14dd1a

Download Submit
memory/2568-0-0x0000000074771000-0x0000000074772000-memory.dmp

Filesize
4KB

Download
memory/2568-1-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-2-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-3-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-4-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-5-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-14-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2616-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-19-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-15-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-20-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-16-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-17-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-18-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-42-0x0000000074770000-0x0000000074D1B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads