nanocore | b33a30ae9ed33c83e82f513ae9c0c8daa332b91488ededdb45068498e11c30e1

Analysis

max time kernel
119s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 04:19

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General

Target

6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
Size

1.7MB
MD5

6fb8d9b8faf429fd1ac72fe9e8e2acb0
SHA1

749e3438eeba8dd45820fff71946891d5c37e9e5
SHA256

b33a30ae9ed33c83e82f513ae9c0c8daa332b91488ededdb45068498e11c30e1
SHA512

70b2c15918e6ee64b98aabbaa000e8f9364870e5adf36f5c9f33e41f3e3f9738843dd8e5467a2e2722352d8f4cfc269e5342012d92150b60112a0962e6d555b9
SSDEEP

24576:Etb20pkfCqT5TBWgNQ7aWS6aWTtVXVChV1SzCaJWN7W6AA:tCg5tQ7aCbTvEhVgGaJ8q5A

Score

10^/10

nanocore discovery keylogger spyware stealer trojan upx

Malware Config

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svcmgr.org.url	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4988-3-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral2/memory/4988-5-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral2/memory/4988-4-0x0000000000400000-0x000000000046C000-memory.dmp	upx

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	MSBuild.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	MSBuild.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	MSBuild.exe
File created	C:\Windows\assembly\Desktop.ini	MSBuild.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	MSBuild.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
4988	MSBuild.exe
4988	MSBuild.exe
4988	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4988	MSBuild.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4988	MSBuild.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 4988	2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe	87
PID 2624 wrote to memory of 4988	2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe	87
PID 2624 wrote to memory of 4988	2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe	87
PID 2624 wrote to memory of 4988	2624	6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe	87

C:\Users\Admin\AppData\Local\Temp\6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe
"C:\Users\Admin\AppData\Local\Temp\6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe"
1⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\6fb8d9b8faf429fd1ac72fe9e8e2acb0N.exe"
  2⤵
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2624-0-0x00007FFA287B0000-0x00007FFA289A5000-memory.dmp

Filesize
2.0MB

Download
memory/4988-3-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/4988-5-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/4988-6-0x00007FFA287B0000-0x00007FFA289A5000-memory.dmp

Filesize
2.0MB

Download
memory/4988-4-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/4988-7-0x00007FFA287B0000-0x00007FFA289A5000-memory.dmp

Filesize
2.0MB

Download
memory/4988-10-0x00007FFA287B0000-0x00007FFA289A5000-memory.dmp

Filesize
2.0MB

Download
memory/4988-11-0x00007FFA287B0000-0x00007FFA289A5000-memory.dmp

Filesize
2.0MB

Download
memory/4988-13-0x00007FFA287B0000-0x00007FFA289A5000-memory.dmp

Filesize
2.0MB

Download