nanocore | 945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76

General

Target

945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe
Size

281KB
MD5

e996f39dc7aaedb7708907aa52dd8fd0
SHA1

df690b3f42a2a9d2934730976bcb267994e99948
SHA256

945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76
SHA512

d3cf6bf102fbb47e79d104f6c73696a73b625e8c1680573cd22d9cd206795eae7d10c02ff1c7c09387264094bd51aa7501819f8ab181db4217b3218e8636ebfe
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66f8:boSeGUA5YZazpXUmZhZ6U

Score

10^/10

nanocore defense_evasion discovery 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
2668	a1punf5t2of.exe
2608	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe
2668	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 2668 set thread context of 2608	2668	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	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.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
2608	a1punf5t2of.exe
2608	a1punf5t2of.exe
2608	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2608	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2608	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 3008 wrote to memory of 2668	3008	945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe	31
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32
PID 2668 wrote to memory of 2608	2668	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe
"C:\Users\Admin\AppData\Local\Temp\945bf76fc6fa7ec4590c1eb31d91626cd303e375aed453406585a8e976196d76N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- 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:2668
- - 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:2608

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
281KB

MD5
c9a864643cb3766435d6551f68c0c12f

SHA1
6834ea8ee82e1c0ae4eb32f246605a9ff5ab23ad

SHA256
7a7b3689d7c256bcd8b88997583f3e474e9ea802d66156e135449e10a8618448

SHA512
bf2f68fbead408d3acf55e760e68b00432756a5e71a8a20435114dcd9aeb94f4a762fae604009344c79c9df676309c0d86e26a39446f648f88a176dbfffc1aa8

Download Submit
memory/2608-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2668-17-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-18-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-19-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-16-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-14-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-38-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-0-0x0000000074DE1000-0x0000000074DE2000-memory.dmp

Filesize
4KB

Download
memory/3008-15-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-5-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-4-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-3-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-2-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-1-0x0000000074DE0000-0x000000007538B000-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