URL:

https://cdnwrd2.com/r/54921/1632955898626/KRNLWRD.rar

Full analysis: https://app.any.run/tasks/c52604e6-6426-46d2-a951-a32908023cb2
Verdict: Malicious activity
Analysis date: October 05, 2021, 22:32:32
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

73439C403916AF82C40C74B2559B64F4

SHA1:

A3FBED5DEB05D20DAADA8C711AC474D8E26C2629

SHA256:

26F8FC3279BCF60E3E1A588E56F7C968E4E2D5649250EA8B1A7540E73ADDF05D

SSDEEP:

3:N8cg7KfcETkha:2cXfZx

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

    • Loads dropped or rewritten executable

      • SearchProtocolHost.exe (PID: 1112)
      • krnl.exe (PID: 1048)
      • Explorer.EXE (PID: 1500)
      • krnl.exe (PID: 3320)

    • Application was dropped or rewritten from another process

      • krnl.exe (PID: 1444)
      • krnl.exe (PID: 1048)
      • krnl.exe (PID: 3320)

  • SUSPICIOUS

    • Drops a file with a compile date too recent

      • WinRAR.exe (PID: 532)

    • Checks supported languages

      • WinRAR.exe (PID: 532)
      • krnl.exe (PID: 1048)
      • krnl.exe (PID: 3320)

    • Drops a file that was compiled in debug mode

      • WinRAR.exe (PID: 532)
      • krnl.exe (PID: 1048)

    • Reads the computer name

      • WinRAR.exe (PID: 532)
      • krnl.exe (PID: 3320)
      • krnl.exe (PID: 1048)

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 532)
      • krnl.exe (PID: 1048)

    • Starts Internet Explorer

      • Explorer.EXE (PID: 1500)

    • Reads Microsoft Outlook installation path

      • iexplore.exe (PID: 2392)

    • Reads Environment values

      • krnl.exe (PID: 3320)
      • krnl.exe (PID: 1048)

  • INFO

    • Application launched itself

      • iexplore.exe (PID: 3816)

    • Checks supported languages

      • iexplore.exe (PID: 3816)
      • iexplore.exe (PID: 2392)
      • explorer.exe (PID: 2980)

    • Manual execution by user

      • explorer.exe (PID: 2980)
      • krnl.exe (PID: 1048)
      • krnl.exe (PID: 1444)

    • Reads the computer name

      • iexplore.exe (PID: 2392)
      • iexplore.exe (PID: 3816)
      • explorer.exe (PID: 2980)

    • Changes internet zones settings

      • iexplore.exe (PID: 3816)

    • Checks Windows Trust Settings

      • iexplore.exe (PID: 2392)
      • iexplore.exe (PID: 3816)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 2392)
      • iexplore.exe (PID: 3816)

    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 3816)

    • Reads the date of Windows installation

      • iexplore.exe (PID: 3816)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
48
Monitored processes
9
Malicious processes
5
Suspicious processes
0

Behavior graph

Click at the process to see the details
start iexplore.exe iexplore.exe winrar.exe searchprotocolhost.exe no specs explorer.exe no specs krnl.exe no specs krnl.exe explorer.exe no specs krnl.exe

Process information

PID
CMD
Path
Indicators
Parent process
532"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\KRNLWRD.rar"C:\Program Files\WinRAR\WinRAR.exe
iexplore.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\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\lpk.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shlwapi.dll
1048"C:\Users\admin\Desktop\KRNLWRD\krnl.exe" C:\Users\admin\Desktop\KRNLWRD\krnl.exe
Explorer.EXE
User:
admin
Integrity Level:
HIGH
Description:
krnlss
Exit code:
1
Version:
1.0.0.0
Modules
Images
c:\users\admin\desktop\krnlwrd\krnl.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
1112"C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe4_ Global\UsGthrCtrlFltPipeMssGthrPipe4 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" C:\Windows\system32\SearchProtocolHost.exe—SearchIndexer.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Microsoft Windows Search Protocol Host
Exit code:
0
Version:
7.00.7601.24542 (win7sp1_ldr_escrow.191209-2211)
Modules
Images
c:\windows\system32\searchprotocolhost.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\user32.dll
c:\windows\system32\gdi32.dll
1444"C:\Users\admin\Desktop\KRNLWRD\krnl.exe" C:\Users\admin\Desktop\KRNLWRD\krnl.exe—Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
krnlss
Exit code:
3221226540
Version:
1.0.0.0
Modules
Images
c:\users\admin\desktop\krnlwrd\krnl.exe
c:\windows\system32\ntdll.dll
1500C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE——
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.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\gdi32.dll
c:\windows\system32\user32.dll
2392"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:3816 CREDAT:267521 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
2980"C:\Windows\explorer.exe" C:\Windows\explorer.exe—Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.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\gdi32.dll
c:\windows\system32\user32.dll
3320"C:\Users\admin\Desktop\KRNLWRD\krnl.exe" C:\Users\admin\Desktop\KRNLWRD\krnl.exe
Explorer.EXE
User:
admin
Integrity Level:
HIGH
Description:
krnlss
Exit code:
1
Version:
1.0.0.0
Modules
Images
c:\users\admin\desktop\krnlwrd\krnl.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll
3816"C:\Program Files\Internet Explorer\iexplore.exe" "https://cdnwrd2.com/r/54921/1632955898626/KRNLWRD.rar"C:\Program Files\Internet Explorer\iexplore.exe
Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
Total events
22 815
Read events
22 559
Write events
256
Delete events
0

Modification events

(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPDaysSinceLastAutoMigration
Value:
1
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchLowDateTime
Value:
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchHighDateTime
Value:
30915128
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30915128
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(3816) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
Executable files
11
Suspicious files
7
Text files
3
Unknown types
3

Dropped files

PID
Process
Filename
Type
2392iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\KRNLWRD.rar.fscalst.partial —
MD5:—
SHA256:—
3816iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\KRNLWRD.rar —
MD5:—
SHA256:—
2392iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27der
MD5:—
SHA256:—
2392iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:—
SHA256:—
2392iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\MFAQUS6V\KRNLWRD[1].rarcompressed
MD5:—
SHA256:—
3816iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF6CB6AECA41D2453C.TMPgmc
MD5:—
SHA256:—
2392iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27binary
MD5:—
SHA256:—
3816iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{2B582627-262C-11EC-BEFF-12A9866C77DE}.datbinary
MD5:—
SHA256:—
532WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa532.33922\KRNLWRD\krnl.dllexecutable
MD5:—
SHA256:—
532WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa532.33922\KRNLWRD\Indicium-Supra.dllexecutable
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
13
DNS requests
7
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3816
iexplore.exe
GET
304
8.248.143.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?420fe48216414854
US
—
—
whitelisted
3816
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 b
whitelisted
2392
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAo3h2ReX7SMIk79G%2B0UDDw%3D
US
der
1.47 Kb
whitelisted
3816
iexplore.exe
GET
304
8.248.143.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?ef53d115ff50b834
US
—
—
whitelisted
1084
svchost.exe
GET
304
8.248.143.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?3e678f8880afc111
US
—
—
whitelisted
3816
iexplore.exe
GET
304
8.248.143.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?a02a8dbc791f8657
US
—
—
whitelisted
2392
iexplore.exe
GET
200
8.248.117.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?93e3de7d13ec793a
US
compressed
4.70 Kb
whitelisted
2392
iexplore.exe
GET
200
8.248.117.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?345267ffd4c267ea
US
compressed
4.70 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
2392
iexplore.exe
172.67.166.253:443
cdnwrd2.com
—
US
suspicious
2392
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3816
iexplore.exe
152.199.19.161:443
iecvlist.microsoft.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
1084
svchost.exe
8.248.143.254:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
malicious
3816
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
—
—
8.248.143.254:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
malicious
2392
iexplore.exe
8.248.117.254:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
malicious

DNS requests

Domain
IP
Reputation
cdnwrd2.com
  • 172.67.166.253
  • 104.21.75.26
whitelisted
ctldl.windowsupdate.com
  • 8.248.117.254
  • 8.248.141.254
  • 8.248.113.254
  • 8.248.115.254
  • 67.27.157.254
  • 8.248.143.254
  • 8.253.207.120
  • 67.27.157.126
  • 8.253.207.121
  • 67.26.83.254
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
iecvlist.microsoft.com
  • 152.199.19.161
whitelisted
r20swj13mr.microsoft.com
  • 152.199.19.161
whitelisted

Threats

No threats detected
No debug info
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Reports
https://cdnwrd2.com/r/54921/1632955898626/KRNLWRD.rar