nanocore | 5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6

General

Target

5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe
Size

278KB
MD5

4e6c9036bcf56456162cbb7d07199673
SHA1

0d8a0600f41b03db73a25ef015854f6a7e66fed5
SHA256

5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6
SHA512

db4253fdfccc0d3efe7437f51864bea4b7e2dcd83960e49ff20a18a5a709e9b805ae67ef85ef93cd7cf343a9303eb5ef6ebbf8f22bd9ee54ff0a8d8f30489561
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fA:boSeGUA5YZazpXUmZhZ6o

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

Executes dropped EXE 2 IoCs

pid	Process
2852	a1punf5t2of.exe
2668	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.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 2668	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	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.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
2668	a1punf5t2of.exe
2668	a1punf5t2of.exe
2668	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2668	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2524 wrote to memory of 2852	2524	5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe	31
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32
PID 2852 wrote to memory of 2668	2852	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe
"C:\Users\Admin\AppData\Local\Temp\5f01e1720dd7baf44f60c10305fc24dd97f23e9cb5c01c94164b60703e30aec6.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- 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:2668

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
278KB

MD5
decddeb905d70f7efceb196367fda05a

SHA1
af328dcc554b3cdbad9e86774a6db92708e4abcf

SHA256
879ce5d49cd670fd3d65b809329b48af240ba9bef32c259e1bd9ce30f1cdb9c7

SHA512
9cba80372e5508b1fc133295b753d6f0837f0ecb7293ebcb95ce65f3ac58855c7956fcc89da9361735e1639b1252d49746905e649efb19d158d782de55cf8f24

Download Submit
memory/2524-0-0x0000000074FC1000-0x0000000074FC2000-memory.dmp

Filesize
4KB

Download
memory/2524-1-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2524-2-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2524-3-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2524-4-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2524-5-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2524-13-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-19-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-21-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-15-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-20-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-16-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-17-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-18-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2852-43-0x0000000074FC0000-0x000000007556B000-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