nanocore | 3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149

General

Target

3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe
Size

336KB
MD5

dc9f9ae0785f8b1e406340dac45477c0
SHA1

0e81dc982a283484a404a5c34722778b903025ef
SHA256

3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149
SHA512

3840bed5a894df2602fb7d0222f12c284bd01efaea83a399890690873b63a2b439e8e97c8ef5010021478a4a9bb35be57cb9f0032fde215dcabf0cb931161ac7
SSDEEP

6144:6geDH2XOIDQg+3XjfgBqhiHAyQKWat7Y0kxBn8yVmEAmg+:6HH2X9D2TI3Hp3WaNYDxBn8yMEAmD

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brouteur22.ddns.net:2706

127.0.0.1:2706

Mutex

4c265332-b9d6-4c49-9c44-89b1b1efab09

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-07-12T20:30:25.084112036Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4009
connection_port
2706
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
4c265332-b9d6-4c49-9c44-89b1b1efab09
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brouteur22.ddns.net
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
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 1 IoCs

pid	Process
2132	pcs.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Host = "C:\\Program Files (x86)\\ISS Host\\isshost.exe"	pcs.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	pcs.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ISS Host\isshost.exe	pcs.exe
File opened for modification	C:\Program Files (x86)\ISS Host\isshost.exe	pcs.exe

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2676	schtasks.exe
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2132	pcs.exe
2132	pcs.exe
2132	pcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2132	pcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	pcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2132	2460	3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe	31
PID 2460 wrote to memory of 2132	2460	3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe	31
PID 2460 wrote to memory of 2132	2460	3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe	31
PID 2460 wrote to memory of 2132	2460	3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe	31
PID 2132 wrote to memory of 2756	2132	pcs.exe	32
PID 2132 wrote to memory of 2756	2132	pcs.exe	32
PID 2132 wrote to memory of 2756	2132	pcs.exe	32
PID 2132 wrote to memory of 2756	2132	pcs.exe	32
PID 2132 wrote to memory of 2676	2132	pcs.exe	34
PID 2132 wrote to memory of 2676	2132	pcs.exe	34
PID 2132 wrote to memory of 2676	2132	pcs.exe	34
PID 2132 wrote to memory of 2676	2132	pcs.exe	34

C:\Users\Admin\AppData\Local\Temp\3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe
"C:\Users\Admin\AppData\Local\Temp\3c0004a41231f301322c196714bae3779182a7dd7c0e178450db06bc7c103149N.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\pcs.exe
  "C:\Users\Admin\AppData\Local\Temp\pcs.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE189.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2756
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE255.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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\Local\Temp\pcs.exe

Filesize
203KB

MD5
6b5ec06af51f8cb10768153b673c86a0

SHA1
b6c3c3413e41521f559297cc09a21642d8c00bb6

SHA256
880302c0ea0680ccba86fc4116bd5b1a92f1203e9275bdb61f6cfdb81d94cb89

SHA512
003cdc2715c0c28da01ebb483261f84b290ca4060236a79829d00c09c8fa44529d990e68e580b563459a7be18644c7aacfbf2610d576f6abaf917cf0cc51e4ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE189.tmp

Filesize
1KB

MD5
83f0f3cfbfc1fa83933cbe85cbedb6e8

SHA1
eaa6a1f85061f09fb3799ef86c720c386ddbaf57

SHA256
6171edd222adbf188364934fb1f84e0fb418a9d6e89074f66fe345ddbd8f865f

SHA512
bcc1f2db901e072b0190c16619e290cd17c2f8c5ff8670cac21ad16b5a7bf1b38ad1eef39abe9452a5e5409260b3fad29a91df7ba4f03947730e624ab2dab480

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE255.tmp

Filesize
1KB

MD5
3d1580c0395f6de62659467f5b7f1acf

SHA1
8e73a3885896cecca7ff799a272fc9ddfe06ea96

SHA256
6f40196c42a171f24a3e16edeca664cdc5a2f7c150d468255b0e14ab10a2b714

SHA512
7637c0d9b03227dffcb00a68d97ddce60bfc40ca0f8a7a4bbd700ea56be6d570908511dea5cab9f609a7da2e558e5298c482fd1e330af085f9c52867d5a847ea

Download Submit
memory/2132-13-0x0000000074221000-0x0000000074222000-memory.dmp

Filesize
4KB

Download
memory/2132-14-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2132-15-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2132-23-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2132-24-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2460-5-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

Filesize
9.9MB

Download
memory/2460-12-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

Filesize
9.9MB

Download
memory/2460-0-0x000007FEF5293000-0x000007FEF5294000-memory.dmp

Filesize
4KB

Download
memory/2460-2-0x0000000000650000-0x0000000000680000-memory.dmp

Filesize
192KB

Download
memory/2460-1-0x000000013F820000-0x000000013F878000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads