nanocore | adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254

General

Target

adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe
Size

254KB
MD5

2ec16db571ff27a7e242703551b0be00
SHA1

f4dfacf6ee15eea387eabd86f879fe2d1cd75a84
SHA256

adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254
SHA512

b675d7cb5b8d548c9925b3d266158b619f4fc0d4748befb46994b735d7b9cb8ad1936b53d05c9474a977535e51f342d6bdbca6bbb4f4808c2d4399b1fe5a979d
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ+Ke:EeGUA5YZazpXUmZhlKe

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
Nanocore family
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe

Executes dropped EXE 2 IoCs

pid	Process
4616	a1punf5t2of.exe
1004	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4616 set thread context of 1004	4616	a1punf5t2of.exe	101

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	adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.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
1004	a1punf5t2of.exe
1004	a1punf5t2of.exe
1004	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1004	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 4616	4900	adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe	100
PID 4900 wrote to memory of 4616	4900	adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe	100
PID 4900 wrote to memory of 4616	4900	adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe	100
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101
PID 4616 wrote to memory of 1004	4616	a1punf5t2of.exe	101

C:\Users\Admin\AppData\Local\Temp\adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe
"C:\Users\Admin\AppData\Local\Temp\adb7f35e18136752ad8f0adf47a42abbb7e75a9b35c8ae48e791efa59a6c5254N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4616
- - 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:1004

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
254KB

MD5
0cfef4c235e64658d419223cc121af74

SHA1
f4ee155f0c08fc856f3ccc72f039a72d3b5a7427

SHA256
1085dc71a395dd3bc06c42c7b3ac7bd5fedb5a99c789603dbf205485db90557b

SHA512
3ba4922a4373ec66c7c3ef7e7a9e6f03e8262a80c196173b8838c2816e9679f75cb379c7956f25924f270a8f9740d7f4671e9350fe5097c9237eae4c72673102

Download Submit
memory/1004-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1004-39-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/1004-36-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/1004-35-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/1004-33-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/1004-32-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/1004-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1004-31-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/1004-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4616-24-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4616-21-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4616-38-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4616-25-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4616-23-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-6-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-7-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-22-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-5-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-4-0x0000000075522000-0x0000000075523000-memory.dmp

Filesize
4KB

Download
memory/4900-3-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-2-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-0-0x0000000075522000-0x0000000075523000-memory.dmp

Filesize
4KB

Download
memory/4900-1-0x0000000075520000-0x0000000075AD1000-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