File name:

39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476

Full analysis: https://app.any.run/tasks/7767ccdc-81ca-48ab-baf2-0bf0909a8c6d
Verdict: Malicious activity
Analysis date: May 18, 2025, 14:44:12
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
netreactor
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 4 sections
MD5:

B5C72F610BF340D1C4872D99F34D702D

SHA1:

81ED772098E06E2F1892BAEC9118D2C594FA9F06

SHA256:

39F43F77C48344D2D3156220886163998B4D9FFFD79A75E1DD12C07B23918476

SSDEEP:

6144:NBjO9QOiaIzyRtkUe/Hqhz++q1wa5+glrOh84IxzG65gvPEEyXHa9vKNsAFpkcg9:PtRG4Js+g/laNq

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

    • Create files in the Startup directory

      • newyear.exe (PID: 7616)

    • Uses Task Scheduler to run other applications

      • newyear.exe (PID: 7616)

    • Changes the autorun value in the registry

      • newyear.exe (PID: 7616)

  • SUSPICIOUS

    • Creates file in the systems drive root

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)
      • newyear.exe (PID: 7616)
      • newyear.exe (PID: 5964)

    • Executable content was dropped or overwritten

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)
      • newyear.exe (PID: 7616)

    • Reads security settings of Internet Explorer

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)

    • Starts itself from another location

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)

    • Deletes scheduled task without confirmation

      • schtasks.exe (PID: 7204)
      • schtasks.exe (PID: 6816)
      • schtasks.exe (PID: 7508)
      • schtasks.exe (PID: 2516)
      • schtasks.exe (PID: 8004)
      • schtasks.exe (PID: 7372)
      • schtasks.exe (PID: 7228)
      • schtasks.exe (PID: 7992)
      • schtasks.exe (PID: 672)
      • schtasks.exe (PID: 2108)

    • There is functionality for taking screenshot (YARA)

      • newyear.exe (PID: 7616)

    • Connects to unusual port

      • newyear.exe (PID: 7616)

    • Uses TASKKILL.EXE to kill process

      • newyear.exe (PID: 7616)

    • The process executes via Task Scheduler

      • newyear.exe (PID: 5964)

  • INFO

    • Create files in a temporary directory

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)

    • Checks supported languages

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)
      • newyear.exe (PID: 7616)
      • newyear.exe (PID: 5964)

    • Process checks computer location settings

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)

    • Reads the computer name

      • 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe (PID: 7332)
      • newyear.exe (PID: 7616)
      • newyear.exe (PID: 5964)

    • Creates files or folders in the user directory

      • newyear.exe (PID: 7616)

    • .NET Reactor protector has been detected

      • newyear.exe (PID: 7616)

    • Reads the machine GUID from the registry

      • newyear.exe (PID: 7616)
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.) (45.1)
.exe | Win32 Executable MS Visual C++ (generic) (19.2)
.exe | Win64 Executable (generic) (17)
.scr | Windows screen saver (8)
.dll | Win32 Dynamic Link Library (generic) (4)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2023:11:06 13:17:43+00:00
ImageFileCharacteristics: Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 249344
InitializedDataSize: 3072
UninitializedDataSize: -
EntryPoint: 0x3ecae
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
192
Monitored processes
66
Malicious processes
2
Suspicious processes
1

Behavior graph

Click at the process to see the details
start 39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exe sppextcomobj.exe no specs slui.exe no specs newyear.exe taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs newyear.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs taskkill.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs schtasks.exe no specs conhost.exe no specs svchost.exe

Process information

PID
CMD
Path
Indicators
Parent process
672schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /fC:\Windows\SysWOW64\schtasks.exe—newyear.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\syswow64\schtasks.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
1116\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—taskkill.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
1164\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—schtasks.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
2092taskkill /f im Wireshark.exeC:\Windows\SysWOW64\taskkill.exe—newyear.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
1
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\taskkill.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\advapi32.dll
2108schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /fC:\Windows\SysWOW64\schtasks.exe—newyear.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\syswow64\schtasks.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
2196C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\Windows\System32\svchost.exe
services.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll
2316\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—schtasks.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
2384schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\admin\AppData\Local\Temp\newyear.exeC:\Windows\SysWOW64\schtasks.exe—newyear.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\syswow64\schtasks.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
2516schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /fC:\Windows\SysWOW64\schtasks.exe—newyear.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\syswow64\schtasks.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
2644schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\admin\AppData\Local\Temp\newyear.exeC:\Windows\SysWOW64\schtasks.exe—newyear.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\syswow64\schtasks.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
Total events
2 319
Read events
2 267
Write events
52
Delete events
0

Modification events

(PID) Process:(7616) newyear.exeKey:HKEY_CURRENT_USER\Environment
Operation:writeName:SEE_MASK_NOZONECHECKS
Value:
1
(PID) Process:(7616) newyear.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:newyear.exe
Value:
"C:\Users\admin\AppData\Local\Temp\newyear.exe" ..
(PID) Process:(7616) newyear.exeKey:HKEY_CURRENT_USER\SOFTWARE\newyear.exe
Operation:writeName:[kl]
Value:
Executable files
2
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
733239f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476.exeC:\Users\admin\AppData\Local\Temp\newyear.exeexecutable
MD5:B5C72F610BF340D1C4872D99F34D702D
SHA256:39F43F77C48344D2D3156220886163998B4D9FFFD79A75E1DD12C07B23918476
7616newyear.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\newyear.exeexecutable
MD5:B5C72F610BF340D1C4872D99F34D702D
SHA256:39F43F77C48344D2D3156220886163998B4D9FFFD79A75E1DD12C07B23918476
7616newyear.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\newyear.urlbinary
MD5:BF3276C04577EEB631C004192CB3AEBD
SHA256:EC4EA570CDAABA6C76030F64747E90BB932DC8C0E4FD7D1679689D70DFC1F79F
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
64
DNS requests
16
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
5496
MoUsoCoreWorker.exe
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5496
MoUsoCoreWorker.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
6544
svchost.exe
GET
200
2.17.190.73:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
920
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
920
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
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
—
—
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
5496
MoUsoCoreWorker.exe
23.48.23.143:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
5496
MoUsoCoreWorker.exe
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
3216
svchost.exe
172.211.123.249:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted
6544
svchost.exe
20.190.160.128:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
6544
svchost.exe
2.17.190.73:80
ocsp.digicert.com
AKAMAI-AS
DE
whitelisted
7616
newyear.exe
3.22.15.135:19367
4.tcp.ngrok.io
AMAZON-02
US
malicious
2104
svchost.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
  • 20.73.194.208
whitelisted
crl.microsoft.com
  • 23.48.23.143
  • 23.48.23.156
whitelisted
www.microsoft.com
  • 184.30.21.171
whitelisted
google.com
  • 172.217.16.206
whitelisted
client.wns.windows.com
  • 172.211.123.249
whitelisted
login.live.com
  • 20.190.160.128
  • 20.190.160.20
  • 20.190.160.14
  • 20.190.160.3
  • 20.190.160.64
  • 20.190.160.66
  • 40.126.32.138
  • 40.126.32.72
whitelisted
ocsp.digicert.com
  • 2.17.190.73
whitelisted
4.tcp.ngrok.io
  • 3.22.15.135
  • 3.129.187.220
  • 3.133.207.110
malicious
slscr.update.microsoft.com
  • 4.175.87.197
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.95.31.18
whitelisted

Threats

PID
Process
Class
Message
2196
svchost.exe
Misc activity
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
2196
svchost.exe
Misc activity
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
2196
svchost.exe
Misc activity
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
No debug info
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Reports
39f43f77c48344d2d3156220886163998b4d9fffd79a75e1dd12c07b23918476