nanocore | 0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e

General

Target

0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe
Size

282KB
MD5

6945ffe26feba8c519674c7b452c8759
SHA1

be199e7cfc61c51df6a3985f4e7f94a581ccec3e
SHA256

0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e
SHA512

04e46e7c71f9dc5e7d414679bb54285cff91c67267b7dc37e8455a43c69dcfbeb0ec1aa8abae4d99e4529b1de32737847cd2eb8ccf025655e65f29a6f66e3046
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfE:boSeGUA5YZazpXUmZhZ6SN

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
2676	a1punf5t2of.exe
2588	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe
2676	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"	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.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 2676 set thread context of 2588	2676	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	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.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
2588	a1punf5t2of.exe
2588	a1punf5t2of.exe
2588	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2588	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2588	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2100 wrote to memory of 2676	2100	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	31
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32
PID 2676 wrote to memory of 2588	2676	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe
"C:\Users\Admin\AppData\Local\Temp\0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- 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:2676
- - 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:2588

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
282KB

MD5
fc4d86ccece95a359bbcea1865ada6e6

SHA1
218eea8318e69c262085ef670bc6ac8f7d5c022e

SHA256
4a5c9a6b5a5adba05fa84f96dc36071296f34311743c368e3a324c7100720024

SHA512
32827eb50b5f864a7d1de559d2d6ac6c60ec2ed397dfcdcd05aaaa8dcda021639b5c1c963c1909f9dd86b7fc84096260b39430dfc9866604cfe28bbf20db6abd

Download Submit
memory/2100-15-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-1-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-2-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-3-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-4-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-5-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-6-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-0-0x0000000074FD1000-0x0000000074FD2000-memory.dmp

Filesize
4KB

Download
memory/2588-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-17-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2676-18-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2676-19-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2676-16-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download
memory/2676-41-0x0000000074FD0000-0x000000007557B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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