URL:

https://k-storage.com/krnl_bootstrapper.exe

Full analysis: https://app.any.run/tasks/43f06307-7b45-43cc-b609-28d19baef521
Verdict: Malicious activity
Analysis date: February 06, 2022, 13:42:45
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

BE8BDFD89816E3EFF894F6866DE85E17

SHA1:

FB450E1E156A32C2D01E3E4B8F71C5FBBFB0F1F3

SHA256:

6C86401F5FC675E2AA611F42C4051AAC6625A05DAB2E8FCF81F1A766A736934B

SSDEEP:

3:N8EsXA3OXL0qDXEw4A:2EsXDXxLEw4A

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

    • Application was dropped or rewritten from another process

      • krnl_bootstrapper.exe (PID: 3852)
      • 7za.exe (PID: 3752)
      • 7za.exe (PID: 2636)
      • krnlss.exe (PID: 2660)

    • Loads dropped or rewritten executable

      • SearchProtocolHost.exe (PID: 3916)
      • krnl_bootstrapper.exe (PID: 3852)
      • Explorer.EXE (PID: 964)
      • krnlss.exe (PID: 2660)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • iexplore.exe (PID: 3740)
      • iexplore.exe (PID: 1940)
      • krnl_bootstrapper.exe (PID: 3852)
      • 7za.exe (PID: 2636)

    • Drops a file that was compiled in debug mode

      • iexplore.exe (PID: 3740)
      • iexplore.exe (PID: 1940)
      • krnl_bootstrapper.exe (PID: 3852)
      • 7za.exe (PID: 2636)

    • Checks supported languages

      • krnl_bootstrapper.exe (PID: 3852)
      • 7za.exe (PID: 3752)
      • 7za.exe (PID: 2636)
      • krnlss.exe (PID: 2660)

    • Reads Microsoft Outlook installation path

      • iexplore.exe (PID: 1940)

    • Drops a file with a compile date too recent

      • iexplore.exe (PID: 1940)
      • iexplore.exe (PID: 3740)
      • krnl_bootstrapper.exe (PID: 3852)
      • 7za.exe (PID: 2636)

    • Starts Internet Explorer

      • Explorer.EXE (PID: 964)

    • Reads the computer name

      • krnl_bootstrapper.exe (PID: 3852)
      • 7za.exe (PID: 3752)
      • 7za.exe (PID: 2636)
      • krnlss.exe (PID: 2660)

    • Reads Environment values

      • krnl_bootstrapper.exe (PID: 3852)
      • krnlss.exe (PID: 2660)

    • Reads default file associations for system extensions

      • Explorer.EXE (PID: 964)

  • INFO

    • Checks supported languages

      • iexplore.exe (PID: 3740)
      • iexplore.exe (PID: 1940)
      • WISPTIS.EXE (PID: 2528)

    • Reads the computer name

      • iexplore.exe (PID: 3740)
      • iexplore.exe (PID: 1940)
      • WISPTIS.EXE (PID: 2528)

    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 3740)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 1940)
      • krnl_bootstrapper.exe (PID: 3852)
      • iexplore.exe (PID: 3740)

    • Changes internet zones settings

      • iexplore.exe (PID: 3740)

    • Reads the date of Windows installation

      • iexplore.exe (PID: 3740)

    • Checks Windows Trust Settings

      • iexplore.exe (PID: 3740)
      • iexplore.exe (PID: 1940)

    • Application launched itself

      • iexplore.exe (PID: 3740)

    • Creates files in the user directory

      • iexplore.exe (PID: 3740)

    • Dropped object may contain Bitcoin addresses

      • iexplore.exe (PID: 3740)

    • Adds / modifies Windows certificates

      • iexplore.exe (PID: 3740)

    • Changes settings of System certificates

      • iexplore.exe (PID: 3740)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
50
Monitored processes
10
Malicious processes
5
Suspicious processes
2

Behavior graph

Click at the process to see the details
start drop and start drop and start drop and start iexplore.exe iexplore.exe krnl_bootstrapper.exe wisptis.exe no specs wisptis.exe searchprotocolhost.exe no specs 7za.exe no specs explorer.exe no specs 7za.exe krnlss.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
128"C:\Windows\SYSTEM32\WISPTIS.EXE" /ManualLaunch;C:\Windows\SYSTEM32\WISPTIS.EXE—krnl_bootstrapper.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Pen and Touch Input Component
Exit code:
3221226540
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\wisptis.exe
c:\windows\system32\ntdll.dll
964C:\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
1940"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:3740 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\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\api-ms-win-downlevel-version-l1-1-0.dll
2528"C:\Windows\SYSTEM32\WISPTIS.EXE" /ManualLaunch;C:\Windows\SYSTEM32\WISPTIS.EXE
krnl_bootstrapper.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Microsoft Pen and Touch Input Component
Exit code:
24
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\wisptis.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\ole32.dll
2636"C:\Users\admin\Desktop\krnl\7za.exe" x "C:\Users\admin\Desktop\krnl\bin\src.7z" -o"C:\Users\admin\Desktop\krnl\bin" -aoa -bsp1C:\Users\admin\Desktop\krnl\7za.exe
krnl_bootstrapper.exe
User:
admin
Company:
Igor Pavlov
Integrity Level:
MEDIUM
Description:
7-Zip Standalone Console
Exit code:
0
Version:
15.14
Modules
Images
c:\users\admin\desktop\krnl\7za.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\lpk.dll
2660"C:\Users\admin\Desktop\krnl\krnlss.exe" C:\Users\admin\Desktop\krnl\krnlss.exe—krnl_bootstrapper.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnlss
Exit code:
0
Version:
1.0.0.0
Modules
Images
c:\users\admin\desktop\krnl\krnlss.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
3740"C:\Program Files\Internet Explorer\iexplore.exe" "https://k-storage.com/krnl_bootstrapper.exe"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\api-ms-win-downlevel-version-l1-1-0.dll
3752"C:\Users\admin\Desktop\krnl\7za.exe" x "C:\Users\admin\Desktop\krnl\bin\Monaco.zip" -o"C:\Users\admin\Desktop\krnl\bin" -aoa -bsp1C:\Users\admin\Desktop\krnl\7za.exe—krnl_bootstrapper.exe
User:
admin
Company:
Igor Pavlov
Integrity Level:
MEDIUM
Description:
7-Zip Standalone Console
Exit code:
0
Version:
15.14
Modules
Images
c:\users\admin\desktop\krnl\7za.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
3852"C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PO2HN1X2\krnl_bootstrapper.exe" C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PO2HN1X2\krnl_bootstrapper.exe
iexplore.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnl_bootstrapper
Exit code:
4294967295
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\microsoft\windows\temporary internet files\content.ie5\po2hn1x2\krnl_bootstrapper.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\microsoft.net\framework\v4.0.30319\mscoreei.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
3916"C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe2_ Global\UsGthrCtrlFltPipeMssGthrPipe2 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
31 212
Read events
30 834
Write events
376
Delete events
2

Modification events

(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPDaysSinceLastAutoMigration
Value:
1
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchLowDateTime
Value:
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchHighDateTime
Value:
30939999
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30939999
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(3740) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
Executable files
139
Suspicious files
11
Text files
57
Unknown types
71

Dropped files

PID
Process
Filename
Type
1940iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27der
MD5:—
SHA256:—
1940iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:—
SHA256:—
1940iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\krnl_bootstrapper[1].exeexecutable
MD5:—
SHA256:—
3740iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{AB732434-8752-11EC-9D0A-12A9866C77DE}.datbinary
MD5:—
SHA256:—
3740iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF0F10A426FF93942C.TMPgmc
MD5:—
SHA256:—
1940iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_28DEA62A0AE77228DD387E155AD0BA27binary
MD5:—
SHA256:—
1940iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157compressed
MD5:F7DCB24540769805E5BB30D193944DCE
SHA256:6B88C6AC55BBD6FEA0EBE5A760D1AD2CFCE251C59D0151A1400701CB927E36EA
3852krnl_bootstrapper.exeC:\Users\admin\Desktop\krnl\7za.exeexecutable
MD5:EC79CABD55A14379E4D676BB17D9E3DF
SHA256:44A55F5D9C31D0990DE47B9893E0C927478930CEF06FBE2D1F520A6D6CBA587D
1940iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PO2HN1X2\krnl_bootstrapper.exe.zkatq1t.partialexecutable
MD5:88A6615157FAFBEFEA10E5207D54E292
SHA256:426A066A7C5ED3E91F9AB5AADB860E969FBF74689179E02FA3B3D5E5E36CBD6E
3852krnl_bootstrapper.exeC:\Users\admin\Desktop\krnl\bin\Monaco.zipcompressed
MD5:1A19FD7C42169C76E75E685DCA02C190
SHA256:D686209AFBBE718DC0506356E934FF190C1259A174ABA12EF40A2FE7A014A331
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
22
DNS requests
14
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3740
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEA177el9ggmWelJjG4vdGL0%3D
US
der
471 b
whitelisted
3740
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D
US
der
1.47 Kb
whitelisted
1940
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAo3h2ReX7SMIk79G%2B0UDDw%3D
US
der
1.47 Kb
whitelisted
3740
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 b
whitelisted
1940
iexplore.exe
GET
200
209.197.3.8:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?27a36fafcc0613e5
US
compressed
4.70 Kb
whitelisted
1940
iexplore.exe
GET
200
209.197.3.8:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?e0ecba08ce7e3400
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
1940
iexplore.exe
188.114.97.7:443
k-storage.com
Cloudflare Inc
US
malicious
1940
iexplore.exe
209.197.3.8:80
ctldl.windowsupdate.com
Highwinds Network Group, Inc.
US
whitelisted
3740
iexplore.exe
152.199.19.161:443
iecvlist.microsoft.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3740
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3852
krnl_bootstrapper.exe
188.114.96.7:443
k-storage.com
Cloudflare Inc
US
malicious
3852
krnl_bootstrapper.exe
188.114.97.7:443
k-storage.com
Cloudflare Inc
US
malicious
1940
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3740
iexplore.exe
204.79.197.200:443
www.bing.com
Microsoft Corporation
US
whitelisted
3740
iexplore.exe
104.111.242.51:443
go.microsoft.com
Akamai International B.V.
NL
unknown
3740
iexplore.exe
204.79.197.203:443
www.msn.com
Microsoft Corporation
US
malicious

DNS requests

Domain
IP
Reputation
k-storage.com
  • 188.114.97.7
  • 188.114.96.7
malicious
ctldl.windowsupdate.com
  • 209.197.3.8
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
api.bing.com
  • 13.107.5.80
whitelisted
www.bing.com
  • 13.107.21.200
  • 204.79.197.200
whitelisted
cdn.krnl.ca
  • 188.114.96.7
  • 188.114.97.7
malicious
iecvlist.microsoft.com
  • 152.199.19.161
whitelisted
r20swj13mr.microsoft.com
  • 152.199.19.161
whitelisted
ieonline.microsoft.com
  • 204.79.197.200
whitelisted
go.microsoft.com
  • 104.111.242.51
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
https://k-storage.com/krnl_bootstrapper.exe