nanocore | b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2ad

General

Target

b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe
Size

278KB
MD5

b5b0a3a95ab4e16c827e265d753404f0
SHA1

7d8c81fbeb574cddafcea2e173eb24bc834bd1ab
SHA256

b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2ad
SHA512

b70e087ee34038ed149ac2e57e66575ba77aa6d9c1736f133cf6913f027543d36e05286bcda3eb8b0678d481f7faac8960584603308d9d33560e7019b622a2e2
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fX:boSeGUA5YZazpXUmZhZ6/

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
2952	a1punf5t2of.exe
2540	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe
2952	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"	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.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 2952 set thread context of 2540	2952	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	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.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
2540	a1punf5t2of.exe
2540	a1punf5t2of.exe
2540	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2540	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 1740 wrote to memory of 2952	1740	b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe	30
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31
PID 2952 wrote to memory of 2540	2952	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe
"C:\Users\Admin\AppData\Local\Temp\b2d345203631d6a98a9941bf22e0e73e1f9a82bf15d5b88128759342ba09c2adN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740
- 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:2952
- - 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:2540

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
278KB

MD5
9c5be8e054360dbafe1b0e5575d4c6c2

SHA1
9e5546adf8e0c35a1119b4bdedb95b2ae196bfbf

SHA256
d4a12c663eca9668fd6e8ae942c8d9c6f87a2f80f25b2645ca2154410b4d5a05

SHA512
391c6c1b0f4ac55d2526a19d07cfed91739e96716334f5e901dc3d5efeb00dd2a9649b9ee7f915eac94e87c76ba922c04842ea88ac61dfb6e4a2c43fefa21b1e

Download Submit
memory/1740-14-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1740-1-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1740-2-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1740-3-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1740-4-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1740-5-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1740-0-0x0000000074F01000-0x0000000074F02000-memory.dmp

Filesize
4KB

Download
memory/2540-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2540-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2540-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2540-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2540-42-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2540-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2540-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-22-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-21-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-15-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-20-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-19-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-16-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-18-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-17-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2952-44-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads