File name:

spoolsv.zip

Full analysis: https://app.any.run/tasks/e73ceeb3-2e99-429d-9e3f-b06ace60724d
Verdict: Malicious activity
Threats:

Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying.

Malware Trends Tracker     >>>
Analysis date: May 31, 2025, 13:28:07
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
arch-exec
ransomware
Indicators:
MIME: application/zip
File info: Zip archive data, at least v2.0 to extract, compression method=deflate
MD5:

85DECD4D79250D0BEAE5F1EAD0983528

SHA1:

8D33692C24E022F31E40CFF8702CD5340779E3DE

SHA256:

67A74615EE1F975766AF35B7DE540A0455B291A141C71342B29131A3A0C38EAA

SSDEEP:

3072:mXJxdjTtDuNqy1md96mpXa6JjV+n32WAwTJqlBv4qp+HQMzRz7LVO:ktTtD0fM6mHj632WfTJ/qYwuLM

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

    • Generic archive extractor

      • WinRAR.exe (PID: 5324)

    • Changes the autorun value in the registry

      • spoolsv.exe (PID: 1676)

    • Renames files like ransomware

      • spoolsv.exe (PID: 1676)

    • RANSOMWARE has been detected

      • spoolsv.exe (PID: 1676)

    • Deletes shadow copies

      • cmd.exe (PID: 7768)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • spoolsv.exe (PID: 1676)
      • Decrypter.exe (PID: 2284)

    • Modifies hosts file to alter network resolution

      • spoolsv.exe (PID: 1676)

    • Reads security settings of Internet Explorer

      • spoolsv.exe (PID: 1676)

    • Start notepad (likely ransomware note)

      • spoolsv.exe (PID: 1676)

    • Executing commands from a ".bat" file

      • spoolsv.exe (PID: 1676)

    • Starts CMD.EXE for commands execution

      • spoolsv.exe (PID: 1676)

    • Detected use of alternative data streams (AltDS)

      • cmd.exe (PID: 7940)

    • Executes as Windows Service

      • VSSVC.exe (PID: 7908)

  • INFO

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 5324)
      • WinRAR.exe (PID: 1804)

    • Creates files or folders in the user directory

      • spoolsv.exe (PID: 1676)

    • Reads the computer name

      • spoolsv.exe (PID: 1676)
      • Decrypter.exe (PID: 7904)
      • Decrypter.exe (PID: 2284)

    • Reads the machine GUID from the registry

      • spoolsv.exe (PID: 1676)
      • Decrypter.exe (PID: 2284)

    • Manual execution by a user

      • spoolsv.exe (PID: 1676)
      • WinRAR.exe (PID: 1804)
      • Decrypter.exe (PID: 7904)
      • Decrypter.exe (PID: 2284)

    • Launch of the file from Registry key

      • spoolsv.exe (PID: 1676)

    • Checks supported languages

      • spoolsv.exe (PID: 1676)
      • Decrypter.exe (PID: 7904)
      • Decrypter.exe (PID: 2284)

    • Process checks computer location settings

      • spoolsv.exe (PID: 1676)

    • Reads security settings of Internet Explorer

      • notepad.exe (PID: 6324)
      • WMIC.exe (PID: 5576)

    • Reads the software policy settings

      • slui.exe (PID: 5096)
      • slui.exe (PID: 8028)

    • SQLite executable

      • Decrypter.exe (PID: 2284)

    • Checks proxy server information

      • slui.exe (PID: 8028)

    • The sample compiled with english language support

      • Decrypter.exe (PID: 2284)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.zip | ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion: 20
ZipBitFlag: -
ZipCompression: Deflated
ZipModifyDate: 2025:05:31 06:19:30
ZipCRC: 0xe5a77055
ZipCompressedSize: 179999
ZipUncompressedSize: 343552
ZipFileName: spoolsv.exe
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
148
Monitored processes
18
Malicious processes
2
Suspicious processes
1

Behavior graph

Click at the process to see the details
start winrar.exe sppextcomobj.exe no specs slui.exe THREAT spoolsv.exe conhost.exe no specs notepad.exe no specs cmd.exe no specs conhost.exe no specs cmd.exe no specs conhost.exe no specs wmic.exe no specs vssvc.exe no specs slui.exe winrar.exe decrypter.exe no specs conhost.exe no specs decrypter.exe conhost.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1012\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—spoolsv.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
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
1676"C:\Users\admin\Desktop\spoolsv.exe" C:\Users\admin\Desktop\spoolsv.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
spoolsv
Exit code:
0
Version:
9.9.9.9
Modules
Images
c:\users\admin\desktop\spoolsv.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
1804"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Desktop\Decrypter.zip"C:\Program Files\WinRAR\WinRAR.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.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
c:\windows\system32\ucrtbase.dll
2284"C:\Users\admin\Desktop\Decrypter.exe" C:\Users\admin\Desktop\Decrypter.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Exit code:
0
Version:
0.0.0.0
Modules
Images
c:\users\admin\desktop\decrypter.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
2332C:\WINDOWS\system32\SppExtComObj.exe -EmbeddingC:\Windows\System32\SppExtComObj.Exe—svchost.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
KMS Connection Broker
Version:
10.0.19041.3996 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\sppextcomobj.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\oleaut32.dll
4776\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—Decrypter.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
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
5096"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEventC:\Windows\System32\slui.exe
SppExtComObj.Exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows Activation Client
Exit code:
1
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
5324"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\Desktop\spoolsv.zipC:\Program Files\WinRAR\WinRAR.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.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
c:\windows\system32\ucrtbase.dll
5576wmic shadowcopy delete C:\Windows\SysWOW64\wbem\WMIC.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
WMI Commandline Utility
Exit code:
2147749908
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\wbem\wmic.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
6324"C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\AppData\Roaming\ReadMe.txtC:\Windows\SysWOW64\notepad.exe—spoolsv.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Notepad
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\notepad.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\gdi32.dll
Total events
8 386
Read events
8 342
Write events
42
Delete events
2

Modification events

(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\Themes
Operation:writeName:ShellExtBMP
Value:
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\Themes
Operation:writeName:ShellExtIcon
Value:
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:3
Value:
C:\Users\admin\Desktop\preferences.zip
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:2
Value:
C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:1
Value:
C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\Desktop\spoolsv.zip
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(5324) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
Executable files
13
Suspicious files
91
Text files
42
Unknown types
0

Dropped files

PID
Process
Filename
Type
1676spoolsv.exeC:\Users\admin\AppData\Local\discord.exeexecutable
MD5:5567C047A87BAF5B4642B5D1AD03C77B
SHA256:F9A94814F36722C16359B92EF6D53C470D5591141AB0720145CACB94774352D3
1676spoolsv.exeC:\Users\admin\Desktop\departmentcase.png.OqnaBJaqdbnbinary
MD5:5CE2B3DA69266851F95C61B0F16251CF
SHA256:95F18CA919A642EAC9CD2F38EEF03BB124B5986596B3EB81F191630DA2D22D4F
1676spoolsv.exeC:\Users\admin\Desktop\cashthese.rtfbinary
MD5:7A0F3634C6AF502CDA7CD1565893E420
SHA256:2D9FA82BFCF0FC289F3C414734960E8AA2664185BBE355E38F3DD33693E09655
1676spoolsv.exeC:\Users\admin\Desktop\departmentcase.pngbinary
MD5:5CE2B3DA69266851F95C61B0F16251CF
SHA256:95F18CA919A642EAC9CD2F38EEF03BB124B5986596B3EB81F191630DA2D22D4F
1676spoolsv.exeC:\Users\admin\Desktop\evidencemilf.rtf.OqnaBJaqdbnbinary
MD5:CBB93D2EF03CBD376B86DD4AFB5FF607
SHA256:CE8080C951CB62833620469D35251C1BA2758CAC7B2D3F0F18544FB75F006D2B
1676spoolsv.exeC:\Users\admin\Desktop\foreigntechnologies.png.OqnaBJaqdbnbinary
MD5:B453992F12BAF47839098DE2921E8B01
SHA256:EF86B6BDA84E08C3D2C832A652A125E25D9A5B4F5016CF97C088518CBB482245
1676spoolsv.exeC:\Users\admin\AppData\Roaming\IDtext
MD5:177B2B72ABF99FF1F3375A032245A40A
SHA256:EC3F401E095782C4374B536154B1103E1D0A6C76DA87CFC1BCD74C6BAA8CDDB9
1676spoolsv.exeC:\Users\admin\Desktop\cashthese.rtf.OqnaBJaqdbnbinary
MD5:7A0F3634C6AF502CDA7CD1565893E420
SHA256:2D9FA82BFCF0FC289F3C414734960E8AA2664185BBE355E38F3DD33693E09655
5324WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa5324.42127\spoolsv.exeexecutable
MD5:5567C047A87BAF5B4642B5D1AD03C77B
SHA256:F9A94814F36722C16359B92EF6D53C470D5591141AB0720145CACB94774352D3
1676spoolsv.exeC:\Users\admin\Desktop\minutebus.rtf.OqnaBJaqdbnbinary
MD5:E32A74AD002DBEBED884F05DC45F4EF2
SHA256:6F2826757329199CFF69912F3586B06F0CC0A31ACD41201A7A2F0A097092110A
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
32
DNS requests
15
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
5496
MoUsoCoreWorker.exe
GET
200
23.216.77.28:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
6544
svchost.exe
GET
200
2.23.77.188:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
5496
MoUsoCoreWorker.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
5720
SIHClient.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
5720
SIHClient.exe
GET
200
95.101.149.131:80
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
5408
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
6544
svchost.exe
20.190.159.0:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
—
—
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5496
MoUsoCoreWorker.exe
23.216.77.28:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
5496
MoUsoCoreWorker.exe
23.35.229.160:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
6544
svchost.exe
40.126.31.3:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
6544
svchost.exe
2.23.77.188:80
ocsp.digicert.com
AKAMAI-AS
DE
whitelisted
5496
MoUsoCoreWorker.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 40.127.240.158
  • 51.124.78.146
whitelisted
login.live.com
  • 20.190.159.0
  • 40.126.31.3
  • 40.126.31.73
  • 20.190.159.71
  • 40.126.31.67
  • 40.126.31.130
  • 20.190.159.68
  • 40.126.31.1
whitelisted
google.com
  • 142.250.185.78
whitelisted
crl.microsoft.com
  • 23.216.77.28
  • 23.216.77.6
whitelisted
www.microsoft.com
  • 23.35.229.160
  • 95.101.149.131
whitelisted
ocsp.digicert.com
  • 2.23.77.188
whitelisted
client.wns.windows.com
  • 172.211.123.249
whitelisted
slscr.update.microsoft.com
  • 4.175.87.197
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 20.242.39.171
whitelisted
activation-v2.sls.microsoft.com
  • 20.83.72.98
whitelisted

Threats

No threats detected
No debug info
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Reports
spoolsv.zip