nanocore | c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7ea

General

Target

c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe
Size

416KB
MD5

398c4d3b2a0156982c35332adaac7090
SHA1

9ea70229dbab165a63e424a5ac1391f274594055
SHA256

c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7ea
SHA512

95c3139041e06fdb2d8f820896adfebbc0150eaf9e8a9b9a7f9875b3356dae95423d3b49d5d44893a2e9cafb3947816371cf690d2fe58bde2be6cfbae37de2a5
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7h:ITNYrnE3bm/CiejewY5vK

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
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
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
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 1 IoCs

pid	Process
1996	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2668	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.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\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.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	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 2136	1996	ximo2ubzn1i.exe	31

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	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2136	regasm.exe
2136	regasm.exe
2136	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2136	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 1996	2668	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe	30
PID 2668 wrote to memory of 1996	2668	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe	30
PID 2668 wrote to memory of 1996	2668	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe	30
PID 2668 wrote to memory of 1996	2668	c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe	30
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31
PID 1996 wrote to memory of 2136	1996	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe
"C:\Users\Admin\AppData\Local\Temp\c0696b79658b329f924b4b3261817bdb0954fd900facfad1df837db6f310c7eaN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2136

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\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
e50ca89aa8abfc4a9c2ad308acdb5e73

SHA1
8e4c6837aa4ed12d793cfdd30cbbb7c66bdb3496

SHA256
42ae2c1caa9db9ef7a1b30361e21ac8b9f0e1d69550453bc0cbc013aae41d3e4

SHA512
4b0cd85bb0c8152793086ba3bec6aa318f9f460419a9190781f5b89d93684ed20ef34f87d0341b011d2ad0bfeb435e6b0f88a31d7370d80a578e5223b44e11aa

Download Submit
memory/1996-14-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1996-34-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1996-33-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1996-15-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1996-13-0x0000000000A90000-0x0000000000AFE000-memory.dmp

Filesize
440KB

Download
memory/2136-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-32-0x00000000006E0000-0x00000000006EA000-memory.dmp

Filesize
40KB

Download
memory/2136-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-31-0x00000000006C0000-0x00000000006DE000-memory.dmp

Filesize
120KB

Download
memory/2136-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2136-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-30-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/2668-3-0x0000000000AF0000-0x0000000000B2C000-memory.dmp

Filesize
240KB

Download
memory/2668-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/2668-12-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-2-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-1-0x0000000001340000-0x00000000013AE000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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