nanocore | 1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789

General

Target

1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe
Size

254KB
MD5

71d78a3f8daeb740b38775f1cb63b820
SHA1

5677fb29bb5fc1bef2093b3c95af8b53a0e3612c
SHA256

1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789
SHA512

a84194f0cf2be9ad61c4d060b8fb6d300f7c9d2f394e9422af10c07296a4207b6646653d87f40386051963f42b0cefeee8a1cdada15de45c05ee553468427f95
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQqr:EeGUA5YZazpXUmZhJr

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
2716	a1punf5t2of.exe
2724	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe
2716	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.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 2716 set thread context of 2724	2716	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	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.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
2724	a1punf5t2of.exe
2724	a1punf5t2of.exe
2724	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2724	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 3008 wrote to memory of 2716	3008	1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe	31
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32
PID 2716 wrote to memory of 2724	2716	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe
"C:\Users\Admin\AppData\Local\Temp\1bf6832a5652c4ac314120d4c296faa2f9114131945fcfd570f1e9b2d76be789N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- 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:2716
- - 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:2724

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
254KB

MD5
a565a79184d30e6652e9c2b523532b57

SHA1
83e901c81d8c7358e805f421971a88f311d036e7

SHA256
157b3ebf117a7d1d091a88be4642b356bfde4162f8f6fb805f13734e9bbedb59

SHA512
b74b64587b36c69089fbc526f8e09ce9aa3b3aae4efd9c166bd17780fadceac0b7dfe77737683c8bb868765b21951f6ea0fff3f661735c5b23846462d8f1374e

Download Submit
memory/2716-16-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-43-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-21-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-20-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-19-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-18-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-17-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3008-4-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-2-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-0-0x0000000073FD1000-0x0000000073FD2000-memory.dmp

Filesize
4KB

Download
memory/3008-3-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-15-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-5-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-6-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-1-0x0000000073FD0000-0x000000007457B000-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