nanocore | c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274

General

Target

c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe
Size

413KB
MD5

afd9858a14f247f838c625968e87a600
SHA1

0d28feb92c7adcd415edca73cc101c2dbe87df5c
SHA256

c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274
SHA512

4cd6050c38a012cceeb341bc1106cdf6de84eddca4ee10d7158496ebde972e93108037bd50425e3004c3abc034de289950bf5d60bbc634117b7af702e157ca58
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUo:ITNYrnE3bm/CiejewY5v/

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

Executes dropped EXE 1 IoCs

pid	Process
2060	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1960	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.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 2060 set thread context of 2192	2060	ximo2ubzn1i.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	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.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
2192	regasm.exe
2192	regasm.exe
2192	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2192	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2060	1960	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe	31
PID 1960 wrote to memory of 2060	1960	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe	31
PID 1960 wrote to memory of 2060	1960	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe	31
PID 1960 wrote to memory of 2060	1960	c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe	31
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2192	2060	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe
"C:\Users\Admin\AppData\Local\Temp\c9b9a3b58bc2b1a69577ecf9346fbf233db41736231f5b40538c6a212becd274N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1960
- 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:2060
- - 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:2192

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
413KB

MD5
e6f62e0af0d0fab817a28a2ce6d93507

SHA1
07c6540bfa6b0e6453044d5e06202e74fff6a622

SHA256
be42b8eba8a504f1cc459320e54a13fdeac85f9845e2e5053b7970919846ba3d

SHA512
7de7684621eb4f91a518b2191f12b5dc8edea175017529b03aa8dd9977c9badc05a3f80e3b1d92456572083ab7407913823d9e583dfa010635cc1027206834a0

Download Submit
memory/1960-1-0x0000000000D30000-0x0000000000D9E000-memory.dmp

Filesize
440KB

Download
memory/1960-2-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-3-0x00000000009F0000-0x0000000000A2C000-memory.dmp

Filesize
240KB

Download
memory/1960-15-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-0-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/2060-33-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-12-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-14-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-13-0x0000000000BA0000-0x0000000000C0E000-memory.dmp

Filesize
440KB

Download
memory/2060-34-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2192-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2192-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-30-0x0000000000540000-0x000000000054A000-memory.dmp

Filesize
40KB

Download
memory/2192-31-0x0000000000550000-0x000000000056E000-memory.dmp

Filesize
120KB

Download
memory/2192-32-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/2192-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads