nanocore | db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572a

General

Target

db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe
Size

413KB
MD5

855571a9d5e3c3d9ac7a8ad4d8f0b870
SHA1

64777d1b77bfe4db2fcbc998e21e94654549a06c
SHA256

db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572a
SHA512

1aa8723a08fb53a9d91117e98be9797eb281a165dd69d4e81175bb1ea290068f616c0381a472bf846b8f6bfb213f27815e52e29d7a19e17d8873fb93b016f1d0
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUK:ITNYrnE3bm/CiejewY5vh

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
1472	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

regasm.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

ximo2ubzn1i.exe

description	pid	Process	procid_target
PID 1472 set thread context of 2976	1472	ximo2ubzn1i.exe	83

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

Processes:

db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.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

Processes:

regasm.exe

pid	Process
2976	regasm.exe
2976	regasm.exe
2976	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2976	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2976	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 732 wrote to memory of 1472	732	db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe	82
PID 732 wrote to memory of 1472	732	db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe	82
PID 732 wrote to memory of 1472	732	db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe	82
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83
PID 1472 wrote to memory of 2976	1472	ximo2ubzn1i.exe	83

C:\Users\Admin\AppData\Local\Temp\db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe
"C:\Users\Admin\AppData\Local\Temp\db9f62728d3e0c52b71fe1a35ed80cbb1cf643ac2942da95c9fdc91a7cf5572aN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:732
- 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:1472
- - 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:2976

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

Query Registry

1

T1012

System Information Discovery

3

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\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
413KB

MD5
98d4a227d863f7ad8d8431b8584a28a5

SHA1
381cfedb7b8bc2e77d58014b86dd15dc834a90f6

SHA256
37fe65dd4f81728b8e6a7ff501dee7491c4ae7a3412c01acd86c04ad1c306687

SHA512
db9d08f82001e4856c8d1a9f3f6657bca4430000955fe0741f65a775e8ee3af774414ffd47eabc8fcdd2f6c65adb0c0d6cc530091a47bb93fb69692f16e0ebf3

Download Submit
memory/732-6-0x00000000057F0000-0x000000000582C000-memory.dmp

Filesize
240KB

Download
memory/732-2-0x0000000005140000-0x00000000056E4000-memory.dmp

Filesize
5.6MB

Download
memory/732-3-0x0000000004C30000-0x0000000004CC2000-memory.dmp

Filesize
584KB

Download
memory/732-4-0x0000000004D00000-0x0000000004D0A000-memory.dmp

Filesize
40KB

Download
memory/732-5-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/732-32-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/732-1-0x00000000001E0000-0x000000000024E000-memory.dmp

Filesize
440KB

Download
memory/732-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1472-20-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/1472-21-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/1472-35-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/1472-33-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/2976-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-27-0x0000000005680000-0x000000000571C000-memory.dmp

Filesize
624KB

Download
memory/2976-29-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/2976-30-0x0000000005B60000-0x0000000005B7E000-memory.dmp

Filesize
120KB

Download
memory/2976-31-0x0000000005B80000-0x0000000005B8A000-memory.dmp

Filesize
40KB

Download
memory/2976-26-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/2976-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-36-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads