nanocore | 276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf

General

Target

276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe
Size

255KB
MD5

4b2543d39fb31f4d16e4cbb6a9d3b2e6
SHA1

eae74c967458c99487f44dada8da17a697d39afb
SHA256

276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf
SHA512

87e05ad3109cfd14f5dcf21a3b5bd568d355ae4f4241ecdc95b8a52b6c2b51f6d4e87fec3ab50f577ad24354f58a08ccb020f6f463dc71827e51362781ec17e0
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQS5:EeGUA5YZazpXUmZhd5

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
2664	a1punf5t2of.exe
2372	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe
2664	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.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 2664 set thread context of 2372	2664	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	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.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
2372	a1punf5t2of.exe
2372	a1punf5t2of.exe
2372	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2372	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2372	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2780 wrote to memory of 2664	2780	276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe	30
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2372	2664	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe
"C:\Users\Admin\AppData\Local\Temp\276e9215a4bb52317a996768c229b81b533667d6d780b869c00414fcad3232bf.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- 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:2664
- - 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:2372

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
255KB

MD5
bb10605d3d1fd0b1490462707ec7707d

SHA1
94226669e9ae44f129b82f4d270f4acd968d3756

SHA256
8c43215f109e449ab8b5e99271c58c0e4802c0c8262e7b1a8d7d102de02b1d5d

SHA512
b35535a2f2e5d4554dfc16234611bc68cde726d5b0b2f00eb13e11111cafb8ee39d76eb6ca4c0bc1bc93e84d09f4f852942cb64bcb278f70293acc9d979afafa

Download Submit
memory/2372-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2372-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2372-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2372-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2372-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2372-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2372-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2372-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-17-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-16-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-18-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-19-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-20-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-39-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-6-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-0-0x0000000074791000-0x0000000074792000-memory.dmp

Filesize
4KB

Download
memory/2780-5-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-4-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-3-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-2-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-1-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2780-15-0x0000000074790000-0x0000000074D3B000-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