nanocore | 2fb3216329599fcf1e9cdef712ae6e57786bccc81f6777bbeec68f12f99976f7

General

Target

afb12cb711e13894ee31784bc6c7a3c0N.exe
Size

280KB
MD5

afb12cb711e13894ee31784bc6c7a3c0
SHA1

e81a3a628193d83dc98179d72035a467cbb8196f
SHA256

2fb3216329599fcf1e9cdef712ae6e57786bccc81f6777bbeec68f12f99976f7
SHA512

ea4ae00e944499301de207018d204e754deb4ee9367038b034f9d12cb86b5cc1997e25f98ec681b0f280e96bbbd209060decbf6ccc7316e1c491a40d01775791
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfSi:boSeGUA5YZazpXUmZhZ6SBi

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

Executes dropped EXE 2 IoCs

pid	Process
2872	a1punf5t2of.exe
2608	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2120	afb12cb711e13894ee31784bc6c7a3c0N.exe
2872	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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	afb12cb711e13894ee31784bc6c7a3c0N.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 2872 set thread context of 2608	2872	a1punf5t2of.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	afb12cb711e13894ee31784bc6c7a3c0N.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
2608	a1punf5t2of.exe
2608	a1punf5t2of.exe
2608	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2608	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2608	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2120 wrote to memory of 2872	2120	afb12cb711e13894ee31784bc6c7a3c0N.exe	31
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2608	2872	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\afb12cb711e13894ee31784bc6c7a3c0N.exe
"C:\Users\Admin\AppData\Local\Temp\afb12cb711e13894ee31784bc6c7a3c0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- 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:2872
- - 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:2608

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

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

Filesize
281KB

MD5
cf0cc4b0aee6d28f632becb66d45f281

SHA1
7757d5ab2777a5323d98fa026383298928a3f7d0

SHA256
8f2f57f55e0bdcccfc54d63da13c98f7c8c0118cc97688e3ff9e9353a9e8e3c7

SHA512
ad472be4346f20ef1e0941bc46df2f68eea538347ced7a18ffb8bddd4029ee02ac64a0ad080bf0e14e78a5ddb124a2fe58ab3bbd86b623927f9872b6a2f35cba

Download Submit
memory/2120-14-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2120-1-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2120-2-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2120-3-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2120-4-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2120-5-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2120-0-0x00000000740C1000-0x00000000740C2000-memory.dmp

Filesize
4KB

Download
memory/2608-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-19-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-15-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-16-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-18-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-17-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-36-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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