File name:

udfrfr.exe

Full analysis: https://app.any.run/tasks/115e68f6-3e23-4595-909f-4e10428e70f8
Verdict: Malicious activity
Analysis date: June 21, 2025, 17:36:29
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
jeefo
auto-reg
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, 3 sections
MD5:

621BB3A73729CEEB9EF0FD6C73E52667

SHA1:

0032F33926071576E13C274E4735FA8FF4CBD6A8

SHA256:

B98DBFD442581EC8A353F05863AE1AC63814314AEC4CC9C11C7FCDC69B3E0BA9

SSDEEP:

12288:5cPNJeyl+SMn7igZi7VP8tyWaDEyDLqTfn6SbWbK:5cPNJeVSw7iz8tyWIEKqTfn1

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

    • JEEFO has been detected

      • udfrfr.exe (PID: 5644)
      • icsys.icn.exe (PID: 2780)
      • explorer.exe (PID: 1896)
      • svchost.exe (PID: 5168)

    • Changes the autorun value in the registry

      • explorer.exe (PID: 1896)
      • svchost.exe (PID: 5168)

  • SUSPICIOUS

    • Starts application with an unusual extension

      • udfrfr.exe (PID: 5644)
      • udfrfr.exe  (PID: 6652)

    • Executable content was dropped or overwritten

      • udfrfr.exe (PID: 5644)
      • explorer.exe (PID: 1896)
      • spoolsv.exe (PID: 2076)
      • icsys.icn.exe (PID: 2780)

    • Starts itself from another location

      • udfrfr.exe (PID: 5644)
      • explorer.exe (PID: 1896)
      • spoolsv.exe (PID: 2076)
      • svchost.exe (PID: 5168)
      • icsys.icn.exe (PID: 2780)

    • The process creates files with name similar to system file names

      • spoolsv.exe (PID: 2076)
      • icsys.icn.exe (PID: 2780)

    • Creates or modifies Windows services

      • svchost.exe (PID: 5168)

    • Application launched itself

      • udfrfr.exe  (PID: 6652)

  • INFO

    • The sample compiled with english language support

      • udfrfr.exe (PID: 5644)
      • explorer.exe (PID: 1896)
      • spoolsv.exe (PID: 2076)
      • icsys.icn.exe (PID: 2780)

    • Checks supported languages

      • icsys.icn.exe (PID: 2780)
      • udfrfr.exe (PID: 5644)
      • udfrfr.exe  (PID: 6652)
      • udfrfr.exe  (PID: 3576)
      • explorer.exe (PID: 1896)
      • spoolsv.exe (PID: 2076)
      • svchost.exe (PID: 5168)
      • spoolsv.exe (PID: 2228)

    • Create files in a temporary directory

      • icsys.icn.exe (PID: 2780)
      • udfrfr.exe (PID: 5644)
      • spoolsv.exe (PID: 2076)
      • svchost.exe (PID: 5168)
      • explorer.exe (PID: 1896)
      • spoolsv.exe (PID: 2228)

    • Reads the computer name

      • udfrfr.exe  (PID: 6652)
      • svchost.exe (PID: 5168)

    • Manual execution by a user

      • explorer.exe (PID: 1132)
      • svchost.exe (PID: 1056)

    • Checks proxy server information

      • slui.exe (PID: 2220)

    • Launching a file from a Registry key

      • explorer.exe (PID: 1896)
      • svchost.exe (PID: 5168)

    • Reads the software policy settings

      • slui.exe (PID: 2220)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2013:04:01 07:08:22+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 106496
InitializedDataSize: 12288
UninitializedDataSize: -
EntryPoint: 0x290c
OSVersion: 4
ImageVersion: 1
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 1.0.0.0
ProductVersionNumber: 1.0.0.0
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
ProductName: Project1
FileVersion: 1
ProductVersion: 1
InternalName: TJprojMain
OriginalFileName: TJprojMain.exe
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
147
Monitored processes
13
Malicious processes
5
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #JEEFO udfrfr.exe udfrfr.exe  no specs #JEEFO icsys.icn.exe conhost.exe no specs udfrfr.exe  no specs #JEEFO explorer.exe spoolsv.exe #JEEFO svchost.exe spoolsv.exe no specs explorer.exe no specs svchost.exe no specs slui.exe udfrfr.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
504"C:\Users\admin\Desktop\udfrfr.exe" C:\Users\admin\Desktop\udfrfr.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Version:
1.00
Modules
Images
c:\users\admin\desktop\udfrfr.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
1056c:\windows\resources\svchost.exe ROC:\Windows\Resources\svchost.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Version:
1.00
Modules
Images
c:\windows\resources\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
1132c:\windows\resources\themes\explorer.exe ROC:\Windows\Resources\Themes\explorer.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Version:
1.00
Modules
Images
c:\windows\resources\themes\explorer.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
1896c:\windows\resources\themes\explorer.exeC:\Windows\Resources\Themes\explorer.exe
icsys.icn.exe
User:
admin
Integrity Level:
HIGH
Version:
1.00
Modules
Images
c:\windows\resources\themes\explorer.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\msvbvm60.dll
2076c:\windows\resources\spoolsv.exe SEC:\Windows\Resources\spoolsv.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Version:
1.00
Modules
Images
c:\windows\resources\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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\msvbvm60.dll
2220C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Exit code:
0
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
2228c:\windows\resources\spoolsv.exe PRC:\Windows\Resources\spoolsv.exe—svchost.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Version:
1.00
Modules
Images
c:\windows\resources\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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\msvbvm60.dll
2780C:\Windows\Resources\Themes\icsys.icn.exeC:\Windows\Resources\Themes\icsys.icn.exe
udfrfr.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Version:
1.00
Modules
Images
c:\windows\resources\themes\icsys.icn.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\msvbvm60.dll
3576c:\users\admin\desktop\udfrfr.exe  C:\Users\admin\Desktop\udfrfr.exe —udfrfr.exe 
User:
admin
Integrity Level:
HIGH
Modules
Images
c:\users\admin\desktop\udfrfr.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
5168c:\windows\resources\svchost.exeC:\Windows\Resources\svchost.exe
spoolsv.exe
User:
admin
Integrity Level:
HIGH
Version:
1.00
Modules
Images
c:\windows\resources\svchost.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\msvbvm60.dll
Total events
3 903
Read events
3 884
Write events
15
Delete events
4

Modification events

(PID) Process:(5168) svchost.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:Explorer
Value:
c:\windows\resources\themes\explorer.exe RO
(PID) Process:(5168) svchost.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:Svchost
Value:
c:\windows\resources\svchost.exe RO
(PID) Process:(5168) svchost.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:Explorer
Value:
(PID) Process:(5168) svchost.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:Svchost
Value:
(PID) Process:(1896) explorer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:Explorer
Value:
c:\windows\resources\themes\explorer.exe RO
(PID) Process:(1896) explorer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:Svchost
Value:
c:\windows\resources\svchost.exe RO
(PID) Process:(1896) explorer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:Explorer
Value:
(PID) Process:(1896) explorer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:Svchost
Value:
(PID) Process:(5644) udfrfr.exeKey:HKEY_CURRENT_USER\SOFTWARE\VB and VBA Program Settings\Explorer\Process
Operation:writeName:LO
Value:
1
(PID) Process:(2780) icsys.icn.exeKey:HKEY_CURRENT_USER\SOFTWARE\VB and VBA Program Settings\Explorer\Process
Operation:writeName:LO
Value:
1
Executable files
5
Suspicious files
4
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
2228spoolsv.exeC:\Users\admin\AppData\Local\Temp\~DFA5DC17E6C34AC24E.TMPbinary
MD5:D4C916E4E3CB87988C818ED32D1E2C85
SHA256:83B507E7574D1F6AFA5B1108DED982CC851B799785DADF9D64CFC95C8ED7FA08
5644udfrfr.exeC:\Users\admin\Desktop\udfrfr.exe executable
MD5:1B35B13531805765809C6E40BF512D24
SHA256:A83176B1448FA1ADB0CA2B6AAEC53F2EEDD97D2054E516EFAE85528BFFDFCDF9
5644udfrfr.exeC:\Windows\Resources\Themes\icsys.icn.exeexecutable
MD5:336F960E6E4DA979B07BC45BD7415143
SHA256:C690340793B4DBFC58D8524765D0AFE0CEC1B0090EF84848F6C6A5AA6824CE06
2780icsys.icn.exeC:\Windows\Resources\Themes\explorer.exeexecutable
MD5:8FB4BA482D675ACB3898155DE4D1AA8A
SHA256:F9B60428AAEA78B71B10A2C8D44BA8C0623609809FEA852BC26B7288FD791057
1896explorer.exeC:\Windows\Resources\spoolsv.exeexecutable
MD5:99CD4B7A5866F9CEE67184BEE7E1C794
SHA256:3788FC3A9AD36959359438661F1224F1F9BBAD8E6E3F45B2B9E218B54A6A66B9
5644udfrfr.exeC:\Users\admin\AppData\Local\Temp\~DFD30893FC282E5242.TMPbinary
MD5:45F30BFD9DD845FC7754D94E406C5343
SHA256:738C742499B4EE40637F1688FE8B2ACEB9F3D9A3C7F28238BF07AE9459F98648
2076spoolsv.exeC:\Windows\Resources\svchost.exeexecutable
MD5:976C231FFB1FD8610BEBFD2F2F15353C
SHA256:6FD07BE9B17C3E0896BC723701FEF842BFE3BA4DF4F8399F1101DAB0303418A5
2780icsys.icn.exeC:\Users\admin\AppData\Local\Temp\~DF871C25980F266081.TMPbinary
MD5:9581FEE2F617C0FFF28394A081B9935A
SHA256:B48A1FE33CECA6EFE50153FF36EDE186F8B10B7353678E9B712C5975D090E1BC
2076spoolsv.exeC:\Users\admin\AppData\Local\Temp\~DF88C17795FD9AA061.TMPbinary
MD5:BAEE1DEAD03B9F8605B39E9B288E6A9D
SHA256:DB2B46B5D0951D1227EF02F66A782A2D1E6809023EADF8668199D5C2D5DAB7ED
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
30
TCP/UDP connections
41
DNS requests
19
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
5944
MoUsoCoreWorker.exe
GET
200
23.53.40.176:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
23.53.40.176:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5116
RUXIMICS.exe
GET
200
23.53.40.176:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5944
MoUsoCoreWorker.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
5116
RUXIMICS.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
—
—
POST
200
40.126.31.128:443
https://login.live.com/RST2.srf
unknown
xml
1.24 Kb
whitelisted
—
—
POST
200
20.190.159.23:443
https://login.live.com/ppsecure/deviceaddcredential.srf
unknown
text
16.7 Kb
whitelisted
—
—
POST
200
40.126.31.2:443
https://login.live.com/RST2.srf
unknown
xml
11.1 Kb
whitelisted
—
—
POST
200
40.126.31.129:443
https://login.live.com/RST2.srf
unknown
xml
11.1 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
—
—
—
whitelisted
5944
MoUsoCoreWorker.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1268
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5116
RUXIMICS.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
5944
MoUsoCoreWorker.exe
23.53.40.176:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
1268
svchost.exe
23.53.40.176:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
5116
RUXIMICS.exe
23.53.40.176:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
5944
MoUsoCoreWorker.exe
23.35.229.160:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
1268
svchost.exe
23.35.229.160:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 40.127.240.158
  • 20.73.194.208
  • 51.104.136.2
whitelisted
google.com
  • 142.250.184.206
whitelisted
crl.microsoft.com
  • 23.53.40.176
  • 23.53.40.178
whitelisted
www.microsoft.com
  • 23.35.229.160
whitelisted
client.wns.windows.com
  • 172.211.123.250
whitelisted
login.live.com
  • 40.126.31.128
  • 20.190.159.129
  • 40.126.31.0
  • 20.190.159.131
  • 20.190.159.75
  • 40.126.31.2
  • 40.126.31.129
  • 20.190.159.23
whitelisted
nexusrules.officeapps.live.com
  • 52.111.243.31
whitelisted
slscr.update.microsoft.com
  • 4.175.87.197
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.85.23.206
whitelisted
activation-v2.sls.microsoft.com
  • 40.91.76.224
whitelisted

Threats

No threats detected
No debug info
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Reports
udfrfr.exe