File name:

FUD Apk Crypter.exe

Full analysis: https://app.any.run/tasks/ce17fd7b-118b-459b-9492-7b599995e029
Verdict: Malicious activity
Threats:

njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world.

Analysis date: January 18, 2025, 03:15:33
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
rat
njrat
bladabindi
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:

555EAE916C0E6D3FF30457CB191ECECB

SHA1:

864F56620B976A7DAAE4DBE2BF08201D8781C332

SHA256:

E4A69BB4C4D76152A8A85BA0301F691593BA3FA496D66112A8E19A9B7DA208EA

SSDEEP:

6144:gutuZoIp86WuAH86yx2iswpnqa4NGjONqOQrxasUX:DuZhp86WuAH8/x2ivcwnAsUX

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Uses Task Scheduler to run other applications

      • Windows Defender Notification.exe (PID: 6344)
    • Changes the autorun value in the registry

      • Windows Defender Notification.exe (PID: 6344)
      • Windows Defender Real Time Protection.exe (PID: 6268)
    • Create files in the Startup directory

      • Windows Defender Notification.exe (PID: 6344)
      • Windows Defender Real Time Protection.exe (PID: 6268)
    • NjRAT is detected

      • Windows Defender Real Time Protection.exe (PID: 6268)
  • SUSPICIOUS

    • Reads security settings of Internet Explorer

      • FUD Apk Crypter.exe (PID: 3608)
      • Windows Defender Notification.exe (PID: 6344)
    • Executable content was dropped or overwritten

      • FUD Apk Crypter.exe (PID: 3608)
      • Windows Defender Real Time Protection.exe (PID: 6268)
      • Windows Defender Notification.exe (PID: 6344)
    • Reads the date of Windows installation

      • Windows Defender Notification.exe (PID: 6344)
    • Uses NETSH.EXE to add a firewall rule or allowed programs

      • Windows Defender Real Time Protection.exe (PID: 6268)
    • Connects to unusual port

      • Windows Defender Notification.exe (PID: 6344)
      • Windows Defender Real Time Protection.exe (PID: 6268)
  • INFO

    • Reads the computer name

      • FUD Apk Crypter.exe (PID: 3608)
      • Windows Defender Notification.exe (PID: 6344)
      • apk encryption.exe (PID: 6296)
      • Windows Defender Real Time Protection.exe (PID: 6268)
    • Checks supported languages

      • FUD Apk Crypter.exe (PID: 3608)
      • Windows Defender Real Time Protection.exe (PID: 6268)
      • Windows Defender Notification.exe (PID: 6344)
      • apk encryption.exe (PID: 6296)
    • Process checks computer location settings

      • FUD Apk Crypter.exe (PID: 3608)
      • Windows Defender Notification.exe (PID: 6344)
    • Sends debugging messages

      • apk encryption.exe (PID: 6296)
    • The process uses the downloaded file

      • FUD Apk Crypter.exe (PID: 3608)
      • Windows Defender Notification.exe (PID: 6344)
    • Create files in a temporary directory

      • FUD Apk Crypter.exe (PID: 3608)
    • Creates files or folders in the user directory

      • Windows Defender Real Time Protection.exe (PID: 6268)
      • Windows Defender Notification.exe (PID: 6344)
    • Reads the machine GUID from the registry

      • Windows Defender Notification.exe (PID: 6344)
      • Windows Defender Real Time Protection.exe (PID: 6268)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (81)
.dll | Win32 Dynamic Link Library (generic) (7.2)
.exe | Win32 Executable (generic) (4.9)
.exe | Win16/32 Executable Delphi generic (2.2)
.exe | Generic Win/DOS Executable (2.2)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2024:10:25 05:38:54+00:00
ImageFileCharacteristics: Executable, 32-bit
PEType: PE32
LinkerVersion: 8
CodeSize: 360448
InitializedDataSize: 45056
UninitializedDataSize: -
EntryPoint: 0x5981e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 0.0.0.0
ProductVersionNumber: 0.0.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
FileDescription:
FileVersion: 0.0.0.0
InternalName: FUD Apk Crypter.exe
LegalCopyright:
OriginalFileName: FUD Apk Crypter.exe
ProductVersion: 0.0.0.0
AssemblyVersion: 0.0.0.0
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
135
Monitored processes
9
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start fud apk crypter.exe #NJRAT windows defender real time protection.exe apk encryption.exe conhost.exe no specs windows defender notification.exe schtasks.exe no specs conhost.exe no specs netsh.exe no specs conhost.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3608"C:\Users\admin\AppData\Local\Temp\FUD Apk Crypter.exe" C:\Users\admin\AppData\Local\Temp\FUD Apk Crypter.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Exit code:
0
Version:
0.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\fud apk crypter.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
6268"C:\Users\admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe" C:\Users\admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe
FUD Apk Crypter.exe
User:
admin
Integrity Level:
MEDIUM
Modules
Images
c:\users\admin\appdata\local\temp\windows defender real time protection.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
6296"C:\Users\admin\AppData\Local\Temp\apk encryption.exe" C:\Users\admin\AppData\Local\Temp\apk encryption.exe
FUD Apk Crypter.exe
User:
admin
Company:
apk encryption
Integrity Level:
MEDIUM
Description:
apk encryption
Exit code:
2147516570
Version:
2.0
Modules
Images
c:\users\admin\appdata\local\temp\apk encryption.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
6304\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exeapk encryption.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
6344"C:\Users\admin\AppData\Local\Temp\Windows Defender Notification.exe" C:\Users\admin\AppData\Local\Temp\Windows Defender Notification.exe
FUD Apk Crypter.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\windows defender notification.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
6872"C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /tn "Windows Defender Notification" /tr "C:\Users\admin\AppData\Roaming\Windows Defender Notification.exe"C:\Windows\System32\schtasks.exeWindows Defender Notification.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Task Scheduler Configuration Tool
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\schtasks.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
6884\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exeschtasks.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
6984netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe" "Windows Defender Real Time Protection.exe" ENABLEC:\Windows\SysWOW64\netsh.exeWindows Defender Real Time Protection.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Network Command Shell
Exit code:
1
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\netsh.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\msvcrt.dll
6992\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exenetsh.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
Total events
2 267
Read events
2 253
Write events
14
Delete events
0

Modification events

(PID) Process:(6268) Windows Defender Real Time Protection.exeKey:HKEY_CURRENT_USER\SOFTWARE\0e75fed00639ea9e725255499292dcdd
Operation:writeName:hp
Value:
NDUuMTQ1LjQxLjE3ODoyMjIyLA==
(PID) Process:(6268) Windows Defender Real Time Protection.exeKey:HKEY_CURRENT_USER\SOFTWARE\0e75fed00639ea9e725255499292dcdd
Operation:writeName:i
Value:
!
(PID) Process:(6344) Windows Defender Notification.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:Windows Defender Notification
Value:
C:\Users\admin\AppData\Roaming\Windows Defender Notification.exe
(PID) Process:(6268) Windows Defender Real Time Protection.exeKey:HKEY_CURRENT_USER\Environment
Operation:writeName:SEE_MASK_NOZONECHECKS
Value:
1
(PID) Process:(6268) Windows Defender Real Time Protection.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:0e75fed00639ea9e725255499292dcdd
Value:
"C:\Users\admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe" ..
(PID) Process:(6268) Windows Defender Real Time Protection.exeKey:HKEY_CURRENT_USER\SOFTWARE\0e75fed00639ea9e725255499292dcdd
Operation:writeName:kl
Value:
Executable files
5
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
3608FUD Apk Crypter.exeC:\Users\admin\AppData\Local\Temp\apk encryption.exeexecutable
MD5:AE0866D015354AD4645448D658B7846D
SHA256:056A45997FEE3DB8000ED8A1DF05412718A94292250E4A9C4493E904981CC86C
6344Windows Defender Notification.exeC:\Users\admin\AppData\Roaming\Windows Defender Notification.exeexecutable
MD5:8D6E86E6E799C75BD5123534BDBF411B
SHA256:7892C9F14967696E15B99B3EAC66D65643357C9A4315F5E8210C8437C6617888
6268Windows Defender Real Time Protection.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0e75fed00639ea9e725255499292dcdd.exeexecutable
MD5:FC15FB0CEC248EA16A6EDA92AB97B1F8
SHA256:73E71DC70F6DAEEBD9A257D0B0C6E67E87C6D50B27EB94AF08D15F1AFB6ED02C
3608FUD Apk Crypter.exeC:\Users\admin\AppData\Local\Temp\Windows Defender Notification.exeexecutable
MD5:8D6E86E6E799C75BD5123534BDBF411B
SHA256:7892C9F14967696E15B99B3EAC66D65643357C9A4315F5E8210C8437C6617888
3608FUD Apk Crypter.exeC:\Users\admin\AppData\Local\Temp\Windows Defender Real Time Protection.exeexecutable
MD5:FC15FB0CEC248EA16A6EDA92AB97B1F8
SHA256:73E71DC70F6DAEEBD9A257D0B0C6E67E87C6D50B27EB94AF08D15F1AFB6ED02C
6344Windows Defender Notification.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnkbinary
MD5:950D76EBC6BB3566E75DDA8D80F070FE
SHA256:86B17687BAF51F709D1E0D8C1969F55970B1AC6B803BBC178C0535380FF161BB
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
124
DNS requests
19
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
GET
200
23.216.77.42:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
whitelisted
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
whitelisted
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
1176
svchost.exe
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
4668
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
whitelisted
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D
unknown
whitelisted
4668
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4712
MoUsoCoreWorker.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4
System
192.168.100.255:137
whitelisted
1684
svchost.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
5064
SearchApp.exe
2.23.227.208:443
www.bing.com
Ooredoo Q.S.C.
QA
whitelisted
23.216.77.42:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
184.30.131.245:80
ocsp.digicert.com
AKAMAI-AS
US
whitelisted
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
whitelisted
1176
svchost.exe
40.126.32.76:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.124.78.146
  • 20.73.194.208
whitelisted
www.bing.com
  • 2.23.227.208
  • 2.23.227.215
whitelisted
google.com
  • 142.250.186.110
whitelisted
crl.microsoft.com
  • 23.216.77.42
  • 23.216.77.6
whitelisted
ocsp.digicert.com
  • 184.30.131.245
whitelisted
www.microsoft.com
  • 184.30.21.171
whitelisted
login.live.com
  • 40.126.32.76
  • 40.126.32.68
  • 40.126.32.133
  • 40.126.32.140
  • 40.126.32.138
  • 20.190.160.17
  • 40.126.32.74
  • 40.126.32.136
whitelisted
go.microsoft.com
  • 184.30.18.9
whitelisted
slscr.update.microsoft.com
  • 4.175.87.197
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 20.242.39.171
whitelisted

Threats

No threats detected
Process
Message
apk encryption.exe
The application to execute does not exist: 'C:\Users\admin\AppData\Local\Temp\apk encryption.dll'.