nanocore | ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18

General

Target

ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe
Size

279KB
MD5

044e5c9bbbdf271a3bcd3a2de354b285
SHA1

9eca6966dfab8a9fe31f7f1edb42d3b4ce093a22
SHA256

ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18
SHA512

d9c67e966887a0b1f809b7f69563c1b0e376be2cd735fb336a76703e1e3e3430496ed81f4ba57a0b2ddad5229e2cfa6532834083b1611bca5535cb05f9edbbd2
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fa:boSeGUA5YZazpXUmZhZ6S

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

Executes dropped EXE 2 IoCs

pid	Process
2920	a1punf5t2of.exe
2580	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe
2920	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.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 2920 set thread context of 2580	2920	a1punf5t2of.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	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.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
2580	a1punf5t2of.exe
2580	a1punf5t2of.exe
2580	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2580	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2108 wrote to memory of 2920	2108	ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe	30
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31
PID 2920 wrote to memory of 2580	2920	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe
"C:\Users\Admin\AppData\Local\Temp\ebaec4e92caf82b8b290e9feda97ea49ff342fd278b6b057afd006b010e1ec18.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2920
- - 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:2580

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

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
279KB

MD5
42c0a285d299ee13af253f44016e318e

SHA1
2515b4524afefbf8078e8f10ea581ed8323d4a81

SHA256
9a7b0d3bd24ccb660f1fc177f50603c5c6be5fefc4f049e6b9d288e242683f98

SHA512
763db01b574f9cab751225c64e7aa393db2aed2158af2f6d599da340e15be8c654f5a0d9ab078e5e1bfe270af4c7cecde6c6b2845eb45780303e1381361792f0

Download Submit
memory/2108-0-0x0000000074E81000-0x0000000074E82000-memory.dmp

Filesize
4KB

Download
memory/2108-1-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2108-2-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2108-3-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2108-4-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2108-5-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2108-14-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2580-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-19-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2920-16-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2920-15-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2920-18-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2920-17-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2920-41-0x0000000074E80000-0x000000007542B000-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