File name:

krnl_bootstrapper.exe

Full analysis: https://app.any.run/tasks/6fa2704d-7237-428e-8ea0-773e331535a2
Verdict: Malicious activity
Analysis date: February 12, 2022, 13:21:30
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:

88A6615157FAFBEFEA10E5207D54E292

SHA1:

BC695C8B579E989CDCEC11D5252AAC5A3296CC23

SHA256:

426A066A7C5ED3E91F9AB5AADB860E969FBF74689179E02FA3B3D5E5E36CBD6E

SSDEEP:

12288:/+BVCrK2jsP3zv+FSF68GANNhWLS0B6L+FOCN+AzrnxdanvzFzh:/uU7ecSgL6y+gk+rnxdarF

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: 3400)
      • krnl_bootstrapper.exe (PID: 3728)
      • krnlss.exe (PID: 3996)

    • Application was dropped or rewritten from another process

      • 7za.exe (PID: 2680)
      • 7za.exe (PID: 2936)
      • krnlss.exe (PID: 3996)

  • SUSPICIOUS

    • Reads the computer name

      • krnl_bootstrapper.exe (PID: 3728)
      • 7za.exe (PID: 2680)
      • 7za.exe (PID: 2936)
      • krnlss.exe (PID: 3996)

    • Checks supported languages

      • krnl_bootstrapper.exe (PID: 3728)
      • 7za.exe (PID: 2680)
      • 7za.exe (PID: 2936)
      • krnlss.exe (PID: 3996)

    • Reads Environment values

      • krnl_bootstrapper.exe (PID: 3728)
      • krnlss.exe (PID: 3996)

    • Drops a file that was compiled in debug mode

      • krnl_bootstrapper.exe (PID: 3728)
      • 7za.exe (PID: 2936)

    • Executable content was dropped or overwritten

      • krnl_bootstrapper.exe (PID: 3728)
      • 7za.exe (PID: 2936)

    • Drops a file with a compile date too recent

      • krnl_bootstrapper.exe (PID: 3728)
      • 7za.exe (PID: 2936)

  • INFO

    • Reads the computer name

      • WISPTIS.EXE (PID: 3996)

    • Checks supported languages

      • WISPTIS.EXE (PID: 3996)

    • Reads settings of System Certificates

      • krnl_bootstrapper.exe (PID: 3728)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (63.1)
.exe | Win64 Executable (generic) (23.8)
.dll | Win32 Dynamic Link Library (generic) (5.6)
.exe | Win32 Executable (generic) (3.8)
.exe | Generic Win/DOS Executable (1.7)

EXIF

EXE

AssemblyVersion: 1.0.0.0
ProductVersion: 1.0.0.0
ProductName: krnl_bootstrapper
OriginalFileName: krnl_bootstrapper.exe
LegalTrademarks: -
LegalCopyright: Copyright © 2022
InternalName: krnl_bootstrapper.exe
FileVersion: 1.0.0.0
FileDescription: krnl_bootstrapper
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.0
FileVersionNumber: 1.0.0.0
Subsystem: Windows GUI
SubsystemVersion: 6
ImageVersion: -
OSVersion: 4
EntryPoint: 0xe7052
UninitializedDataSize: -
InitializedDataSize: 257024
CodeSize: 938496
LinkerVersion: 48
PEType: PE32
TimeStamp: 2047:03:14 14:36:23+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 06-Feb-1911 07:08:07
Debug artifacts:
  • C:\Users\keshs\Downloads\krnl_bootstrapper\krnl bootstrapper\obj\Release\krnl_bootstrapper.pdb
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
Assembly Version: 1.0.0.0

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 06-Feb-1911 07:08:07
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x000E5058
0x000E5200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.53303
.rsrc
0x000E8000
0x0003E8D8
0x0003EA00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
1.20735
.reloc
0x00128000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST
32512
2.01924
20
UNKNOWN
UNKNOWN
RT_GROUP_ICON

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
44
Monitored processes
7
Malicious processes
4
Suspicious processes
1

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
2680"C:\Users\admin\Documents\krnl\7za.exe" x "C:\Users\admin\Documents\krnl\bin\Monaco.zip" -o"C:\Users\admin\Documents\krnl\bin" -aoa -bsp1C:\Users\admin\Documents\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
2936"C:\Users\admin\Documents\krnl\7za.exe" x "C:\Users\admin\Documents\krnl\bin\src.7z" -o"C:\Users\admin\Documents\krnl\bin" -aoa -bsp1C:\Users\admin\Documents\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
3400"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)
3524"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)
3728"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
3996"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)
3996"C:\Users\admin\Documents\krnl\krnlss.exe" C:\Users\admin\Documents\krnl\krnlss.exe—krnl_bootstrapper.exe
User:
admin
Integrity Level:
MEDIUM
Description:
krnlss
Exit code:
1
Version:
1.0.0.0
Total events
0
Read events
0
Write events
0
Delete events
0

Modification events

No data
Executable files
136
Suspicious files
3
Text files
42
Unknown types
66

Dropped files

PID
Process
Filename
Type
3728krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\KrnlAPI.dllexecutable
MD5:—
SHA256:—
26807za.exeC:\Users\admin\Documents\krnl\bin\Monaco\Monaco.htmlhtml
MD5:F872D6BB3D3364428DB47E8DB7050D43
SHA256:0F4292152A1F55A75E7DE8A5DEF919A7DDACFB9A774FD02C4B82C8FA99715E96
3728krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\7za.exeexecutable
MD5:EC79CABD55A14379E4D676BB17D9E3DF
SHA256:44A55F5D9C31D0990DE47B9893E0C927478930CEF06FBE2D1F520A6D6CBA587D
26807za.exeC:\Users\admin\Documents\krnl\bin\Monaco\vs\editor\editor.main.csstext
MD5:233217455A3EF3604BF4942024B94F98
SHA256:2EC118616A1370E7C37342DA85834CA1819400C28F83ABFCBBB1EF50B51F7701
26807za.exeC:\Users\admin\Documents\krnl\bin\Monaco\vs\base\worker\workerMain.jstext
MD5:27EAD90C7702154755785E0E53398755
SHA256:BDF9433692A08851E13DD58504EEF19F51BD2EC7241923A68EDF5772E0E53AF5
3728krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\bin\Monaco.zipcompressed
MD5:1A19FD7C42169C76E75E685DCA02C190
SHA256:D686209AFBBE718DC0506356E934FF190C1259A174ABA12EF40A2FE7A014A331
26807za.exeC:\Users\admin\Documents\krnl\bin\Monaco\vs\basic-languages\lua\lua.jstext
MD5:9CF08ADA63C048E4E38C8816409ED958
SHA256:C171352021B601D49147F9C8A8B241CA0D8E905F79937164AC824AD2FF3F9CCC
26807za.exeC:\Users\admin\Documents\krnl\bin\Monaco\vs\editor\contrib\suggest\media\String_16x.svgimage
MD5:48E754CB54C78A85DCC9AAEA9A27847E
SHA256:D1AA361F33564E8F9D527A01A66C7CE35D73F23417432E80DDF51F562770EE79
26807za.exeC:\Users\admin\Documents\krnl\bin\Monaco\vs\editor\contrib\suggest\media\String_inverse_16x.svgimage
MD5:6E5C0CE7EC09969F07EA6EE078EF8AD6
SHA256:7D23C0F30CB9C05C81BB15785A3299772AE3CFBE51F3E04895AA1F23FFBEBA5B
3728krnl_bootstrapper.exeC:\Users\admin\Documents\krnl\bin\src.7z —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
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
3728
krnl_bootstrapper.exe
104.21.39.171:443
cdn.krnl.ca
Cloudflare Inc
US
malicious
3728
krnl_bootstrapper.exe
188.114.97.17:443
k-storage.com
Cloudflare Inc
US
malicious

DNS requests

Domain
IP
Reputation
cdn.krnl.ca
  • 104.21.39.171
  • 172.67.147.98
malicious
k-storage.com
  • 188.114.97.17
  • 188.114.96.17
malicious

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
krnl_bootstrapper.exe