File name:

krnl_bootstrapper.exe

Full analysis: https://app.any.run/tasks/0871842e-0d60-4055-8456-27ac4bf00ee1
Verdict: Malicious activity
Analysis date: December 03, 2023, 02:28:40
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

F14153BBD95FC26D9CCEA77C49CF09B9

SHA1:

CB59F900711EA751C4322B4DAB50FA2C0EE70B33

SHA256:

27EAB496D0B63D52C18CEE063110D9D479523B58426BFCB58E420A5CAE087C54

SSDEEP:

12288:aBVCrK2jsP3zv+FSF68GANNhWLS0B6L+FOCN+AzrnxdanvzFzho:SU7ecSgL6y+gk+rnxdarFu

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

    • Drops the executable file immediately after the start

      • krnl_bootstrapper.exe (PID: 2644)

  • SUSPICIOUS

    • Reads the Internet Settings

      • krnl_bootstrapper.exe (PID: 2644)

    • Reads settings of System Certificates

      • krnl_bootstrapper.exe (PID: 2644)

    • Drops 7-zip archiver for unpacking

      • krnl_bootstrapper.exe (PID: 2644)

  • INFO

    • Reads the computer name

      • wmpnscfg.exe (PID: 1884)
      • krnl_bootstrapper.exe (PID: 2644)
      • krnlss.exe (PID: 3592)

    • Checks supported languages

      • krnl_bootstrapper.exe (PID: 2644)
      • wmpnscfg.exe (PID: 1884)
      • krnlss.exe (PID: 3592)

    • Reads Environment values

      • krnl_bootstrapper.exe (PID: 2644)

    • Reads the machine GUID from the registry

      • krnl_bootstrapper.exe (PID: 2644)
      • krnlss.exe (PID: 3592)

    • Manual execution by a user

      • wmpnscfg.exe (PID: 1884)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win64 Executable (generic) (64.6)
.dll | Win32 Dynamic Link Library (generic) (15.4)
.exe | Win32 Executable (generic) (10.5)
.exe | Generic Win/DOS Executable (4.6)
.exe | DOS Executable Generic (4.6)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2093:08:30 20:10:57+02:00
ImageFileCharacteristics: Executable, Large address aware
PEType: PE32
LinkerVersion: 48
CodeSize: 939520
InitializedDataSize: 257024
UninitializedDataSize: -
EntryPoint: 0xe758e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 6
Subsystem: Windows GUI
FileVersionNumber: 1.0.0.0
ProductVersionNumber: 1.0.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: -
FileDescription: krnl_bootstrapper
FileVersion: 1.0.0.0
InternalName: krnl_bootstrapper.exe
LegalCopyright: Copyright © 2022
LegalTrademarks: -
OriginalFileName: krnl_bootstrapper.exe
ProductName: krnl_bootstrapper
ProductVersion: 1.0.0.0
AssemblyVersion: 1.0.0.0
No data.
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All screenshots are available in the full report
All screenshots are available in the full report
Total processes
41
Monitored processes
3
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start krnl_bootstrapper.exe wmpnscfg.exe no specs krnlss.exe

Process information

PID
CMD
Path
Indicators
Parent process
1884"C:\Program Files\Windows Media Player\wmpnscfg.exe"C:\Program Files\Windows Media Player\wmpnscfg.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Media Player Network Sharing Service Configuration Application
Exit code:
0
Version:
12.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\program files\windows media player\wmpnscfg.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
2644"C:\Users\admin\AppData\Local\Temp\krnl_bootstrapper.exe" C:\Users\admin\AppData\Local\Temp\krnl_bootstrapper.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnl_bootstrapper
Exit code:
4294967295
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\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\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3592"C:\Users\admin\Documents\krnl\krnlss.exe" C:\Users\admin\Documents\krnl\krnlss.exe
krnl_bootstrapper.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Exit code:
3762504530
Version:
0.0.0.0
Modules
Images
c:\users\admin\documents\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
Total events
4 352
Read events
4 331
Write events
21
Delete events
0

Modification events

(PID) Process:(2644) krnl_bootstrapper.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication
Operation:writeName:Name
Value:
Explorer.EXE
(PID) Process:(2644) krnl_bootstrapper.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\17F\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2644) krnl_bootstrapper.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(2644) krnl_bootstrapper.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(2644) krnl_bootstrapper.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(2644) krnl_bootstrapper.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
Executable files
6
Suspicious files
0
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\krnlss.exe.configxml
MD5:0ED4B3831FF5E91DFF636145F68AAC4C
SHA256:03962AE5A55DFC70E2717771A9A7AA37B956B2C5B4C62E3CFF9FE24360250347
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\injector.dllexecutable
MD5:BDED683C890AEBF20F67558F5D7C3F4B
SHA256:36B9B6973C672828EE78D7374F53D14EAAF39240F2C27E4582D71762E8468355
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\bin\Bunifu_UI_v1.5.3.dllexecutable
MD5:2ECB51AB00C5F340380ECF849291DBCF
SHA256:F1B3E0F2750A9103E46A6A4A34F1CF9D17779725F98042CC2475EC66484801CF
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\7zexecutable
MD5:EC79CABD55A14379E4D676BB17D9E3DF
SHA256:44A55F5D9C31D0990DE47B9893E0C927478930CEF06FBE2D1F520A6D6CBA587D
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\7za.exeexecutable
MD5:EC79CABD55A14379E4D676BB17D9E3DF
SHA256:44A55F5D9C31D0990DE47B9893E0C927478930CEF06FBE2D1F520A6D6CBA587D
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\bin\ScintillaNET.dllexecutable
MD5:9166536C31F4E725E6BEFE85E2889A4B
SHA256:AD0CC5A4D4A6AAE06EE360339C851892B74B8A275CE89C1B48185672179F3163
2644krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\krnlss.exeexecutable
MD5:AC1EB281766B4339663A33452DBE2320
SHA256:EABE3BB13F52F749ED2D96328D63F38776F70024B85B7E9B1040A00C147366A4
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
13
DNS requests
2
Threats
0

HTTP requests

No HTTP requests
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
2588
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
1080
svchost.exe
224.0.0.252:5355
—
—
—
unknown
2644
krnl_bootstrapper.exe
170.187.189.97:443
cdn.krnl.place
Linode, LLC
DE
unknown
2644
krnl_bootstrapper.exe
188.114.96.3:443
k-storage.com
CLOUDFLARENET
NL
unknown

DNS requests

Domain
IP
Reputation
cdn.krnl.place
  • 170.187.189.97
unknown
k-storage.com
  • 188.114.96.3
  • 188.114.97.3
unknown

Threats

No threats detected
No debug info
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Reports
krnl_bootstrapper.exe