nanocore | d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2022, 01:30

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General

Target

d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe
Size

241KB
MD5

eaa627127b87d9f59afc00374f43583e
SHA1

83d1a134a9e6dcb198aeaca9030b4f058d9ff39e
SHA256

d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265
SHA512

4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33
SSDEEP

6144:5LX6FrQvq9ZrumBFSOzVCdyQEDvTX2qFWdbq:57698IZqKFS8cdBivTGLb

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.1.1

testalerlynch2.ddns.net:19302

Mutex

eddce1db-ede3-4767-a9cb-101e86025cdd

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2014-10-21T19:21:49.770516936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
19302
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
eddce1db-ede3-4767-a9cb-101e86025cdd
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
testalerlynch2.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
1.2.1.1
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
3536	Filename.exe
1444	csrss.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	Filename.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ RegistryKey = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftServices\\MicrosoftServices\\Filename.exe"	Filename.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ RegistryKey = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftServices\\MicrosoftServices\\Filename.exe"	Filename.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ RegistryKey = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftServices\\MicrosoftServices\\Filename.exe"	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ RegistryKey = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftServices\\MicrosoftServices\\Filename.exe"	csrss.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3536 set thread context of 5012	3536	Filename.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Filename.exe

NTFS ADS 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe:ZONE.identifier	cmd.exe
File created	C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe\:ZONE.identifier:$DATA	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe:ZONE.identifier	cmd.exe
File created	C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\csrss.exe\:ZONE.identifier:$DATA	Filename.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5012	RegSvcs.exe
5012	RegSvcs.exe
5012	RegSvcs.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe
1444	csrss.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5012	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3536	Filename.exe
Token: SeDebugPrivilege	5012	RegSvcs.exe
Token: SeDebugPrivilege	1444	csrss.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3544 wrote to memory of 2464	3544	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe	76
PID 3544 wrote to memory of 2464	3544	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe	76
PID 3544 wrote to memory of 2464	3544	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe	76
PID 3544 wrote to memory of 3536	3544	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe	79
PID 3544 wrote to memory of 3536	3544	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe	79
PID 3544 wrote to memory of 3536	3544	d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe	79
PID 3536 wrote to memory of 1732	3536	Filename.exe	81
PID 3536 wrote to memory of 1732	3536	Filename.exe	81
PID 3536 wrote to memory of 1732	3536	Filename.exe	81
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 5012	3536	Filename.exe	83
PID 3536 wrote to memory of 1444	3536	Filename.exe	84
PID 3536 wrote to memory of 1444	3536	Filename.exe	84
PID 3536 wrote to memory of 1444	3536	Filename.exe	84

C:\Users\Admin\AppData\Local\Temp\d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe
"C:\Users\Admin\AppData\Local\Temp\d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe"
1⤵
- Checks computer location settings
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Local\Temp\d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe":ZONE.identifier & exit
  2⤵
  - NTFS ADS
  PID:2464
- C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe
  "C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - NTFS ADS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3536
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe":ZONE.identifier & exit
    3⤵
    - NTFS ADS
    PID:1732
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
    "C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\RegSvcs.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:5012
- - C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\csrss.exe
    "C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\csrss.exe" -reg C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe -proc 5012 C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265.exe

Filesize
241KB

MD5
eaa627127b87d9f59afc00374f43583e

SHA1
83d1a134a9e6dcb198aeaca9030b4f058d9ff39e

SHA256
d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

SHA512
4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe

Filesize
241KB

MD5
eaa627127b87d9f59afc00374f43583e

SHA1
83d1a134a9e6dcb198aeaca9030b4f058d9ff39e

SHA256
d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

SHA512
4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe

Filesize
241KB

MD5
eaa627127b87d9f59afc00374f43583e

SHA1
83d1a134a9e6dcb198aeaca9030b4f058d9ff39e

SHA256
d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

SHA512
4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\Filename.exe

Filesize
241KB

MD5
eaa627127b87d9f59afc00374f43583e

SHA1
83d1a134a9e6dcb198aeaca9030b4f058d9ff39e

SHA256
d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

SHA512
4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\csrss.exe

Filesize
241KB

MD5
eaa627127b87d9f59afc00374f43583e

SHA1
83d1a134a9e6dcb198aeaca9030b4f058d9ff39e

SHA256
d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

SHA512
4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\csrss.exe

Filesize
241KB

MD5
eaa627127b87d9f59afc00374f43583e

SHA1
83d1a134a9e6dcb198aeaca9030b4f058d9ff39e

SHA256
d7f54c4175ed66a686c9164627ab82599c6f734afeb59bca504713021e638265

SHA512
4bc56f70e5ed758054f741274ccf47135d7b66a80c99a7a650dd15cc82a2ed3ab12ac8f751038d762049dd676e8b6440438a32a360b17302135f7badb5533b33

Download Submit
memory/1444-151-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/1444-149-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/3536-148-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/3536-138-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/3544-139-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/3544-132-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/5012-144-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/5012-150-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/5012-142-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download