nanocore | a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe

General

Target

a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe
Size

281KB
MD5

c149eeedbc0a3f065ebca9d225088f34
SHA1

eceedfd90392a94b002a0b70da9f2810df2251db
SHA256

a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe
SHA512

c356a5fa0d551d9e2ed7570f8f064ce7a57f719bf7265423bb4d5719ed2a73e86d26ee70fb94b94d1a49f0c3a4ddcc9ced4394b514025572a50390539e41f881
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkf2:boSeGUA5YZazpXUmZhZ6Sn

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

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid process

2772 a1punf5t2of.exe
2080 a1punf5t2of.exe
Loads dropped DLL 2 IoCs

Processes:

a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exea1punf5t2of.exe

pid process

2000 a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe
2772 a1punf5t2of.exe

pid	process
2772	a1punf5t2of.exe
2080	a1punf5t2of.exe

pid	process
2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe
2772	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a1punf5t2of.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description pid process target process

PID 2772 set thread context of 2080 2772 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

description	pid	process	target process
PID 2772 set thread context of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe

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

Processes:

a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.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

Processes:

a1punf5t2of.exe

pid process

2080 a1punf5t2of.exe
2080 a1punf5t2of.exe
2080 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

2080 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 2080 a1punf5t2of.exe

pid	process
2080	a1punf5t2of.exe
2080	a1punf5t2of.exe
2080	a1punf5t2of.exe

pid	process
2080	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	2080	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exea1punf5t2of.exe

description	pid	process	target process
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2000 wrote to memory of 2772	2000	a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe
PID 2772 wrote to memory of 2080	2772	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe
"C:\Users\Admin\AppData\Local\Temp\a992b7ef180c95750351ca6321342a4243d2d68eda90a9e680c688f799e1c0fe.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000

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:2772

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:2080

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

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

Filesize
281KB

MD5
b5b8cb84d5c34cc3dc22d4b874ab8ee8

SHA1
568f0eab3ff5b6d0f0fba02f3b3e30651a6d0bbe

SHA256
e0bf76582bafdfab449000b02b683f3449a34734e29fb4b07d8110c6df809818

SHA512
e09a1f27a05e13db222c7c610a9b21e3089a036e01c323d4d75716ab5beee36d01da827d4af3a5785eb9f3a71febc00d48fe0100607f068dc7e049cbf8f7efd9

Download Submit
memory/2000-0-0x00000000749C1000-0x00000000749C2000-memory.dmp

Filesize
4KB

Download
memory/2000-1-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2000-2-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2000-3-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2000-12-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2080-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2080-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2772-14-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-15-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-16-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-13-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-36-0x00000000749C0000-0x0000000074F6B000-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