nanocore | 55edcf08f8521a9cddde8570baaac0ab8ef6e640e96c834db0e5c12f5b9c68fe

Analysis

max time kernel
134s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:18

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General

Target

f2259737b967bbe88fc74916f319c61a.exe
Size

914KB
MD5

f2259737b967bbe88fc74916f319c61a
SHA1

d4aa76d4aeaebb6db93b4131c81fc898cb48f901
SHA256

b4dc13b87fda606c84b1ac2e9a3ae2d16f24aa5ff389b6cb0f550dd517986cba
SHA512

560b28ea6b8d8b67f0a0707f819204d8b4f49614d668ab2a367acc67fb437562c8163cb4b6ccb70186945f58d788b0d1e5e44d0e238f96b03e70ad245c1f70d0
SSDEEP

24576:CdtP2cbksTpugRNJI5kFMJF9OWjwjLOjZV:fgq7

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Checks computer location settings 2 TTPs 1 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-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	f2259737b967bbe88fc74916f319c61a.exe

Executes dropped EXE 1 IoCs

pid	Process
5480	app.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-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\app.exe"	f2259737b967bbe88fc74916f319c61a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5480 set thread context of 3544	5480	app.exe	103

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 4 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	f2259737b967bbe88fc74916f319c61a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	app.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
5484	f2259737b967bbe88fc74916f319c61a.exe
5484	f2259737b967bbe88fc74916f319c61a.exe
5484	f2259737b967bbe88fc74916f319c61a.exe
5484	f2259737b967bbe88fc74916f319c61a.exe
5484	f2259737b967bbe88fc74916f319c61a.exe
5484	f2259737b967bbe88fc74916f319c61a.exe
5480	app.exe
5480	app.exe
5480	app.exe
5480	app.exe
5480	app.exe
5480	app.exe
3544	aspnet_compiler.exe
3544	aspnet_compiler.exe
3544	aspnet_compiler.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3544	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5484	f2259737b967bbe88fc74916f319c61a.exe
Token: SeDebugPrivilege	5480	app.exe
Token: SeDebugPrivilege	3544	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5484 wrote to memory of 5480	5484	f2259737b967bbe88fc74916f319c61a.exe	101
PID 5484 wrote to memory of 5480	5484	f2259737b967bbe88fc74916f319c61a.exe	101
PID 5484 wrote to memory of 5480	5484	f2259737b967bbe88fc74916f319c61a.exe	101
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 5480 wrote to memory of 3544	5480	app.exe	103
PID 3544 wrote to memory of 4912	3544	aspnet_compiler.exe	104
PID 3544 wrote to memory of 4912	3544	aspnet_compiler.exe	104
PID 3544 wrote to memory of 4912	3544	aspnet_compiler.exe	104

C:\Users\Admin\AppData\Local\Temp\f2259737b967bbe88fc74916f319c61a.exe
"C:\Users\Admin\AppData\Local\Temp\f2259737b967bbe88fc74916f319c61a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5484
- C:\Users\Admin\AppData\Roaming\app.exe
  "C:\Users\Admin\AppData\Roaming\app.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5480
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3544
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCF13.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCF13.tmp

Filesize
1KB

MD5
d81eb43d26d4511c44151cba2eb45983

SHA1
135c98e039c6ab35d4e9564f15f9c56dc9dbeb9a

SHA256
a72a8f6434d6b0fb904db5adc8cab891d12c53b4ac1435dfd13df51f84a2d4d0

SHA512
b5895c19159d23a8fa312967e47d0855ac6f8f314f8931f54469b0c0079a22e9e00a5eaf6729761f74d54e111454d49813e658243e920a9c3434a5576cdda721

Download Submit
C:\Users\Admin\AppData\Roaming\app.exe

Filesize
923KB

MD5
03fec9db45b4e2b6bd119629c62afeed

SHA1
f9e3d4f4c5142b8e9e62d876fb1d75022059936e

SHA256
f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29

SHA512
f30c2d7bb2201b9f78c5c23bcad35a04bad30a23b32e8bba006b9fb4ac453476d303109802c5799d60c813d7e942f3f38f336075d9709af0c02daadf8762cd7c

Download Submit
memory/3544-40-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/3544-49-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/3544-48-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/3544-47-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/3544-39-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/3544-41-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5480-31-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5480-32-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5480-43-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5480-34-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5480-33-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5480-35-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5484-8-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5484-30-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5484-7-0x0000000075152000-0x0000000075153000-memory.dmp

Filesize
4KB

Download
memory/5484-0-0x0000000075152000-0x0000000075153000-memory.dmp

Filesize
4KB

Download
memory/5484-6-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5484-5-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5484-2-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/5484-1-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download