File name:

rk_free_setup_301.exe

Full analysis: https://app.any.run/tasks/dc736ec4-42f1-4a8e-9bb8-7201e7d39691
Verdict: Malicious activity
Analysis date: September 25, 2024, 18:28:06
OS: Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

3935C389ED8451DF43C021CBB8DCD740

SHA1:

10810B87D883C4A006F4499D973610B95C14C2B6

SHA256:

D2AD1908D041D0B2B09D2FFB68D98881F0AFF30B9055C6670AA623587BA35224

SSDEEP:

49152:Gv/C1Im6vgkSY7pmXIeawosEbzDJUgyR0GXmvgkSY7pmXIwy:0/ZmK/ogH1OLW/n

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

      • rvlkl.exe (PID: 5208)
    • Modifies exclusions in Windows Defender

      • rkfree_setup64.exe (PID: 1176)
  • SUSPICIOUS

    • Reads security settings of Internet Explorer

      • rk_free_setup_301.exe (PID: 2084)
      • rkfree_setup64.exe (PID: 1176)
      • rvlkl.exe (PID: 1236)
    • Executable content was dropped or overwritten

      • rk_free_setup_301.exe (PID: 2084)
      • rkfree_setup64.exe (PID: 1176)
    • Reads the date of Windows installation

      • rkfree_setup64.exe (PID: 1176)
    • Detected use of alternative data streams (AltDS)

      • rkfree_setup64.exe (PID: 1176)
  • INFO

    • Checks supported languages

      • rk_free_setup_301.exe (PID: 2084)
      • rkfree_setup64.exe (PID: 1176)
      • rvlkl.exe (PID: 1236)
      • rvlkl.exe (PID: 5208)
    • Process checks computer location settings

      • rk_free_setup_301.exe (PID: 2084)
      • rkfree_setup64.exe (PID: 1176)
    • The process uses the downloaded file

      • rk_free_setup_301.exe (PID: 2084)
      • rkfree_setup64.exe (PID: 1176)
    • Create files in a temporary directory

      • rk_free_setup_301.exe (PID: 2084)
    • Reads the computer name

      • rk_free_setup_301.exe (PID: 2084)
      • rvlkl.exe (PID: 5208)
      • rvlkl.exe (PID: 1236)
      • rkfree_setup64.exe (PID: 1176)
    • Reads the machine GUID from the registry

      • rkfree_setup64.exe (PID: 1176)
      • rvlkl.exe (PID: 5208)
      • rvlkl.exe (PID: 1236)
    • Creates files in the program directory

      • rvlkl.exe (PID: 5208)
      • rvlkl.exe (PID: 1236)
      • rkfree_setup64.exe (PID: 1176)
    • Manual execution by a user

      • rvlkl.exe (PID: 1236)
      • rvlkl.exe (PID: 6128)
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: 2021:05:10 09:32:28+00:00
ImageFileCharacteristics: Executable, 32-bit
PEType: PE32
LinkerVersion: 14.28
CodeSize: 105984
InitializedDataSize: 1758720
UninitializedDataSize: -
EntryPoint: 0xf7cf
OSVersion: 6
ImageVersion: -
SubsystemVersion: 6
Subsystem: Windows GUI
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
146
Monitored processes
10
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rk_free_setup_301.exe rkfree_setup64.exe rvlkl.exe no specs rvlkl.exe rvlkl.exe no specs rvlkl.exe sppextcomobj.exe no specs slui.exe slui.exe rk_free_setup_301.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
752C:\WINDOWS\system32\SppExtComObj.exe -EmbeddingC:\Windows\System32\SppExtComObj.Exesvchost.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
KMS Connection Broker
Exit code:
0
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
1176"C:\Users\admin\AppData\Local\Temp\rkfree_setup\rkfree_setup64.exe" C:\Users\admin\AppData\Local\Temp\rkfree_setup\rkfree_setup64.exe
rk_free_setup_301.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rkfree_setup\rkfree_setup64.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
1236"C:\WINDOWS\system32\rvlkl.exe" C:\Windows\System32\rvlkl.exe
explorer.exe
User:
admin
Company:
Logixoft
Integrity Level:
HIGH
Description:
Revealer Free
Version:
3.0.1.0
Modules
Images
c:\windows\system32\rvlkl.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
2084"C:\Users\admin\AppData\Local\Temp\rk_free_setup_301.exe" C:\Users\admin\AppData\Local\Temp\rk_free_setup_301.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rk_free_setup_301.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\user32.dll
4648"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
5208"C:\WINDOWS\system32\rvlkl.exe" -install -lang 9C:\Windows\System32\rvlkl.exe
rkfree_setup64.exe
User:
admin
Company:
Logixoft
Integrity Level:
HIGH
Description:
Revealer Free
Exit code:
0
Version:
3.0.1.0
Modules
Images
c:\windows\system32\rvlkl.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
5900"C:\WINDOWS\system32\rvlkl.exe" -install -lang 9C:\Windows\System32\rvlkl.exerkfree_setup64.exe
User:
admin
Company:
Logixoft
Integrity Level:
HIGH
Description:
Revealer Free
Exit code:
3221226540
Version:
3.0.1.0
Modules
Images
c:\windows\system32\rvlkl.exe
c:\windows\system32\ntdll.dll
6128"C:\WINDOWS\system32\rvlkl.exe" C:\Windows\System32\rvlkl.exeexplorer.exe
User:
admin
Company:
Logixoft
Integrity Level:
MEDIUM
Description:
Revealer Free
Exit code:
3221226540
Version:
3.0.1.0
Modules
Images
c:\windows\system32\rvlkl.exe
c:\windows\system32\ntdll.dll
6512"C:\Users\admin\AppData\Local\Temp\rk_free_setup_301.exe" C:\Users\admin\AppData\Local\Temp\rk_free_setup_301.exeexplorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\users\admin\appdata\local\temp\rk_free_setup_301.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
6760C:\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
Total events
1 836
Read events
1 832
Write events
2
Delete events
2

Modification events

(PID) Process:(1176) rkfree_setup64.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:rvlkl
Value:
(PID) Process:(1176) rkfree_setup64.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:rkfree
Value:
(PID) Process:(1176) rkfree_setup64.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths
Operation:writeName:C:\WINDOWS\system32\rvlkl.exe
Value:
0
(PID) Process:(1176) rkfree_setup64.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes
Operation:writeName:C:\WINDOWS\system32\rvlkl.exe
Value:
0
Executable files
3
Suspicious files
2
Text files
3
Unknown types
0

Dropped files

PID
Process
Filename
Type
1176rkfree_setup64.exeC:\ProgramData\rvlkl\log.csstext
MD5:A35BD6E012B609D94A076699C5372657
SHA256:6EF8CFC8307115A02E5B60AF549867DC79BDF3018EB95A9417E8E6C3632EABB5
2084rk_free_setup_301.exeC:\Users\admin\AppData\Local\Temp\rkfree_setup\rkfree_setup64.exeexecutable
MD5:521F2A5C686F718E3CA2DCA5F4AF2B49
SHA256:7444DC7F026376291DF6BC0BA8A1EF4A97B22B7EFA1FF446E8B7EE83814F0533
1236rvlkl.exeC:\ProgramData\rvlkl\conf_text
MD5:E8433E7512D30AF4229E160FBA599A6A
SHA256:01709A396ECCA62E7C8A3284E5143F7C7C39BB15B73F6D0FB7CA2D29B43EF69F
5208rvlkl.exeC:\ProgramData\rvlkl\conftext
MD5:3A2A17F6EF47EA009788C4FA1E003E57
SHA256:E125F4E866B633574ABD6B51EBF8F48DA282BB520281449331C97D071E59AD30
1176rkfree_setup64.exeC:\Windows\System32\rvlkl.exeexecutable
MD5:A96EC3A8236736C4153D8CC16C53DCA3
SHA256:2C4147281974CE872B59BC994C378561AF209DA70875B60D8D213E563E605B87
5208rvlkl.exeC:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\rvlkl.lnkbinary
MD5:923E37273C76A85538F21FD7C36FBE70
SHA256:5950FA4984E8E75576DCFDFA0D16AA3CA1D4EDBFFAFB181AF2842AF905B80C0D
5208rvlkl.exeC:\ProgramData\rvlkl\conf_binary
MD5:6FBED2A2E0416D1C94E76905CEBF518D
SHA256:4240F55276638FAA4D186B992910CB991208A6C8E970E2A8AD41F6B37C5BB716
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
46
DNS requests
22
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
6196
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
5212
svchost.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
1224
SIHClient.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
whitelisted
5336
SearchApp.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEApDqVCbATUviZV57HIIulA%3D
unknown
whitelisted
5336
SearchApp.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
whitelisted
1224
SIHClient.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
whitelisted
5336
SearchApp.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D
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
6920
RUXIMICS.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4
System
192.168.100.255:138
whitelisted
2120
MoUsoCoreWorker.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
5212
svchost.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
3888
svchost.exe
239.255.255.250:1900
whitelisted
5212
svchost.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
5212
svchost.exe
88.221.169.152:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
6196
svchost.exe
40.126.32.133:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
6196
svchost.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted
4
System
192.168.100.255:137
whitelisted

DNS requests

Domain
IP
Reputation
google.com
  • 142.250.186.142
whitelisted
settings-win.data.microsoft.com
  • 20.73.194.208
  • 51.124.78.146
  • 51.104.136.2
whitelisted
www.microsoft.com
  • 88.221.169.152
whitelisted
login.live.com
  • 40.126.32.133
  • 40.126.32.68
  • 40.126.32.136
  • 20.190.160.17
  • 20.190.160.22
  • 40.126.32.138
  • 40.126.32.76
  • 40.126.32.140
  • 40.126.32.72
  • 40.126.32.74
  • 20.190.160.20
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
browser.pipe.aria.microsoft.com
  • 13.69.116.104
  • 20.42.65.85
whitelisted
slscr.update.microsoft.com
  • 20.12.23.50
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.85.23.206
whitelisted
nexusrules.officeapps.live.com
  • 52.111.229.19
whitelisted
activation-v2.sls.microsoft.com
  • 20.83.72.98
whitelisted

Threats

No threats detected
No debug info