nanocore | af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2

General

Target

af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
Size

278KB
MD5

82b23194fa2793c270c8297dfe95f27c
SHA1

056022b0ca3904ef238287d359dad6f5bb76edd8
SHA256

af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2
SHA512

b7c4b84cdfdfd651c6c4e20229a84c379094dbd461c7bf0d6d5ccacec0f7ef6051cc9263b290ba7db59ff566a5d9699fe14242e047abc72c81c749205a9e536e
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fp:boSeGUA5YZazpXUmZhZ6R

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
2696	a1punf5t2of.exe
1276	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
2696	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.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 2696 set thread context of 1276	2696	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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1276	a1punf5t2of.exe
1276	a1punf5t2of.exe
1276	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1276	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1276	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2308 wrote to memory of 2696	2308	af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe	30
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31
PID 2696 wrote to memory of 1276	2696	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe
"C:\Users\Admin\AppData\Local\Temp\af3982488f54fc331e04f244ed0ca403259e37a72009148471564f9237f3a7b2.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- 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:2696
- - 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:1276

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
278KB

MD5
0c9f0be275942fb184638ee5e6f44385

SHA1
3b7b23a6cef912644c87cabdd3af54c7e01fb551

SHA256
446edf436c1e3aac706fc61c2fa3355dbfcc2ae1107d750b52f50335604f7d0e

SHA512
e8d9b0b4fe06f56787eceef145c6cacc8bbc10ba478821421f0b5a47ba2fdc594fad2b2a44469318f1f7a8c10e1e6583a9055d76363d99c7e90e075bd50eefc6

Download Submit
memory/1276-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1276-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1276-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1276-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1276-42-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1276-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1276-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1276-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2308-6-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-15-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-1-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-2-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-3-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-4-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-5-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2308-0-0x0000000074931000-0x0000000074932000-memory.dmp

Filesize
4KB

Download
memory/2696-20-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-18-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-22-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-21-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-19-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-16-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-17-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2696-44-0x0000000074930000-0x0000000074EDB000-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