URL:

https://wearedevs.net/d/Krnl

Full analysis: https://app.any.run/tasks/a8af9311-618b-426b-a8a1-de71a4c7c7ec
Verdict: Malicious activity
Analysis date: February 26, 2022, 13:11:00
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

3526C41C0B8968B5E396EB610498F5BE

SHA1:

F288D69C692B3F62F039F14741B3D5C701B2A7B7

SHA256:

89C867EC6C20672EAFAD0ABD4B0CB102DE5C76C9C9A20575177FF08D977C9C5E

SSDEEP:

3:N8R/BApK8mJ:25BuB+

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: 3836)
      • krnl.exe (PID: 3652)
      • krnl.exe (PID: 3368)
      • krnl.exe (PID: 3056)

    • Drops executable file immediately after starts

      • krnl.exe (PID: 3652)

    • Application was dropped or rewritten from another process

      • krnl.exe (PID: 3652)
      • krnl.exe (PID: 3368)
      • krnl.exe (PID: 2944)
      • krnl.exe (PID: 1708)
      • krnl.exe (PID: 3056)
      • krnl.exe (PID: 3056)

  • SUSPICIOUS

    • Reads Microsoft Outlook installation path

      • iexplore.exe (PID: 3180)
      • iexplore.exe (PID: 1552)

    • Checks supported languages

      • WinRAR.exe (PID: 2860)
      • krnl.exe (PID: 3368)
      • krnl.exe (PID: 3056)
      • krnl.exe (PID: 3652)

    • Reads the computer name

      • WinRAR.exe (PID: 2860)
      • krnl.exe (PID: 3652)
      • krnl.exe (PID: 3368)
      • krnl.exe (PID: 3056)

    • Drops a file that was compiled in debug mode

      • WinRAR.exe (PID: 2860)
      • krnl.exe (PID: 3652)

    • Drops a file with a compile date too recent

      • WinRAR.exe (PID: 2860)

    • Reads Environment values

      • krnl.exe (PID: 3652)
      • krnl.exe (PID: 3368)
      • krnl.exe (PID: 3056)

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 2860)
      • krnl.exe (PID: 3652)

  • INFO

    • Reads the computer name

      • iexplore.exe (PID: 3904)
      • iexplore.exe (PID: 1552)
      • iexplore.exe (PID: 3180)

    • Checks supported languages

      • iexplore.exe (PID: 3904)
      • iexplore.exe (PID: 3180)
      • iexplore.exe (PID: 1552)

    • Changes internet zones settings

      • iexplore.exe (PID: 3904)

    • Application launched itself

      • iexplore.exe (PID: 3904)

    • Checks Windows Trust Settings

      • iexplore.exe (PID: 3180)
      • iexplore.exe (PID: 3904)
      • iexplore.exe (PID: 1552)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 3904)
      • iexplore.exe (PID: 3180)
      • iexplore.exe (PID: 1552)

    • Reads internet explorer settings

      • iexplore.exe (PID: 3180)
      • iexplore.exe (PID: 1552)

    • Creates files in the user directory

      • iexplore.exe (PID: 3180)

    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 3904)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
52
Monitored processes
11
Malicious processes
5
Suspicious processes
0

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
1552"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:3904 CREDAT:4003106 /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\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\api-ms-win-downlevel-version-l1-1-0.dll
1708"C:\Users\admin\Downloads\KRNLWRD\krnl.exe" "C:\Users\admin\AppData\Local\Temp\Rar$VR2860.27581"C:\Users\admin\Downloads\KRNLWRD\krnl.exe—WinRAR.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnlss
Exit code:
3221226540
Version:
1.0.0.0
Modules
Images
c:\windows\system32\ntdll.dll
c:\users\admin\downloads\krnlwrd\krnl.exe
2860"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\KRNLWRD.rar"C:\Program Files\WinRAR\WinRAR.exe
iexplore.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\usp10.dll
c:\windows\system32\comdlg32.dll
2944"C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.26010\KRNLWRD\krnl.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.26010\KRNLWRD\krnl.exe—WinRAR.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnlss
Exit code:
3221226540
Version:
1.0.0.0
Modules
Images
c:\windows\system32\ntdll.dll
c:\users\admin\appdata\local\temp\rar$exa2860.26010\krnlwrd\krnl.exe
3056"C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.25526\KRNLWRD\krnl.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.25526\KRNLWRD\krnl.exe—WinRAR.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnlss
Exit code:
3221226540
Version:
1.0.0.0
Modules
Images
c:\windows\system32\ntdll.dll
c:\users\admin\appdata\local\temp\rar$exa2860.25526\krnlwrd\krnl.exe
3056"C:\Users\admin\Downloads\KRNLWRD\krnl.exe" "C:\Users\admin\AppData\Local\Temp\Rar$VR2860.27581"C:\Users\admin\Downloads\KRNLWRD\krnl.exe
WinRAR.exe
User:
admin
Integrity Level:
HIGH
Description:
krnlss
Exit code:
0
Version:
1.0.0.0
Modules
Images
c:\users\admin\downloads\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
3180"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:3904 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\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\sechost.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
3368"C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.26010\KRNLWRD\krnl.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.26010\KRNLWRD\krnl.exe
WinRAR.exe
User:
admin
Integrity Level:
HIGH
Description:
krnlss
Exit code:
1
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\rar$exa2860.26010\krnlwrd\krnl.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3652"C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.25526\KRNLWRD\krnl.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXa2860.25526\KRNLWRD\krnl.exe
WinRAR.exe
User:
admin
Integrity Level:
HIGH
Description:
krnlss
Exit code:
1
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\rar$exa2860.25526\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
3836"C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe3_ Global\UsGthrCtrlFltPipeMssGthrPipe3 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
Total events
31 024
Read events
30 608
Write events
415
Delete events
1

Modification events

(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPDaysSinceLastAutoMigration
Value:
1
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchLowDateTime
Value:
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchHighDateTime
Value:
30944018
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30944018
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(3904) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
Executable files
21
Suspicious files
22
Text files
64
Unknown types
23

Dropped files

PID
Process
Filename
Type
3180iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9FF67FB3141440EED32363089565AE60_7DC5A49A66313199AE25379E9E0361E2binary
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9FF67FB3141440EED32363089565AE60_7DC5A49A66313199AE25379E9E0361E2der
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\MFAQUS6V\Krnl[1].htmhtml
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\DYI6kXcOcxKbTp9LDOkriR11YHo[1].jstext
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27der
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27binary
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\YTOWV792\main[1].csstext
MD5:—
SHA256:—
3180iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157compressed
MD5:F7DCB24540769805E5BB30D193944DCE
SHA256:6B88C6AC55BBD6FEA0EBE5A760D1AD2CFCE251C59D0151A1400701CB927E36EA
3180iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\download[1].csstext
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
19
TCP/UDP connections
65
DNS requests
27
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3180
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAo3h2ReX7SMIk79G%2B0UDDw%3D
US
der
1.47 Kb
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEFJXl5%2FOUoVICgAAAAE3h2s%3D
US
der
471 b
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEDn19aJQ3JKiCgAAAAE3jGk%3D
US
der
471 b
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEQCyLG4l5D%2BaFwoAAAABN4kh
US
der
472 b
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEQDWxNMTh5qYFwoAAAABN4d2
US
der
472 b
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEQCKUZZp3JiR3woAAAABN4kk
US
der
472 b
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEDn19aJQ3JKiCgAAAAE3jGk%3D
US
der
471 b
whitelisted
3180
iexplore.exe
GET
200
142.250.184.195:80
http://ocsp.pki.goog/gts1c3/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEDn19aJQ3JKiCgAAAAE3jGk%3D
US
der
471 b
whitelisted
3904
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D
US
der
1.47 Kb
whitelisted
3904
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3180
iexplore.exe
104.26.7.147:443
wearedevs.net
Cloudflare Inc
US
suspicious
3180
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3180
iexplore.exe
142.250.185.130:443
pagead2.googlesyndication.com
Google Inc.
US
suspicious
3180
iexplore.exe
172.67.71.2:443
wearedevs.net
—
US
suspicious
3180
iexplore.exe
142.250.184.200:443
www.googletagmanager.com
Google Inc.
US
suspicious
3180
iexplore.exe
142.250.186.106:443
fonts.googleapis.com
Google Inc.
US
whitelisted
3180
iexplore.exe
142.250.184.195:80
ocsp.pki.goog
Google Inc.
US
whitelisted
3180
iexplore.exe
142.250.181.238:443
www.google-analytics.com
Google Inc.
US
whitelisted
3180
iexplore.exe
142.250.184.227:443
fonts.gstatic.com
Google Inc.
US
whitelisted
3180
iexplore.exe
142.250.185.162:443
googleads.g.doubleclick.net
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
wearedevs.net
  • 104.26.7.147
  • 104.26.6.147
  • 172.67.71.2
whitelisted
ctldl.windowsupdate.com
  • 93.184.221.240
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
pagead2.googlesyndication.com
  • 142.250.185.130
whitelisted
cdn.wearedevs.net
  • 172.67.71.2
  • 104.26.7.147
  • 104.26.6.147
whitelisted
www.googletagmanager.com
  • 142.250.184.200
whitelisted
fonts.googleapis.com
  • 142.250.186.106
whitelisted
ocsp.pki.goog
  • 142.250.184.195
whitelisted
www.google-analytics.com
  • 142.250.181.238
whitelisted
fonts.gstatic.com
  • 142.250.184.227
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
https://wearedevs.net/d/Krnl