nanocore | 1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05

General

Target

1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe
Size

280KB
MD5

3e4842e526abd44d6996fef09b4f9cda
SHA1

5d83cce23e1fb35916842bd8015649f8282d1538
SHA256

1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05
SHA512

7317de8f22e3b30f559bd897458723d8f3135bf087339e8963f6a24f245c3638a00df28f36fa3ef03f9f63ae671050d8502c4b5cbc51e05c11f49bfbd3cf65ad
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fa9:boSeGUA5YZazpXUmZhZ6i9

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

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-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\International\Geo\Nation	1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe

Executes dropped EXE 2 IoCs

pid	Process
1384	a1punf5t2of.exe
2704	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-1-5-21-2278412438-3475196406-3686434223-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.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 1384 set thread context of 2704	1384	a1punf5t2of.exe	97

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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2704	a1punf5t2of.exe
2704	a1punf5t2of.exe
2704	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2704	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 1384	3096	1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe	95
PID 3096 wrote to memory of 1384	3096	1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe	95
PID 3096 wrote to memory of 1384	3096	1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe	95
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97
PID 1384 wrote to memory of 2704	1384	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe
"C:\Users\Admin\AppData\Local\Temp\1eb2e41484df26af2c4a3ae6dc12068d4adae5bcbac5632545e0217939deae05.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3096
- 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:1384
- - 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:2704

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
281KB

MD5
e8cf3aef24a552d20ff06a538f90854f

SHA1
64455b73f1846ce15f0a0c81ac30964fd6ace3af

SHA256
bc627ff47ead8a830b61d21045b12ca82db380123f7731dd1ff2b47a8961aeb3

SHA512
cfe4a87179815788ad9ddc902d78d3e9fb714b360540e7453e0f28a7b5df0c4aba8941eb31aa66768185b64e40b6f7adb5cc3f7097296d00779edf9ee16e19e3

Download Submit
memory/1384-41-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1384-27-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1384-26-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1384-25-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1384-24-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1384-23-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1384-22-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-35-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-33-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-43-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-42-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-39-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-38-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-37-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-34-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2704-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3096-4-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/3096-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3096-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/3096-3-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3096-7-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3096-5-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3096-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3096-6-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3096-21-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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