File name:

winosntkrnl.exe

Full analysis: https://app.any.run/tasks/73e2bb6e-e8da-43d0-a71b-da7f5da22db9
Verdict: Malicious activity
Analysis date: July 12, 2020, 21:16:29
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (console) Intel 80386, for MS Windows
MD5:

8282C0635F2A71DA04D3B04124D53DF1

SHA1:

DCB6675CF23F83736D4549D8AB51018D7874CA8B

SHA256:

3EFF97290B94144BD5B908603205911118A010770B9129426FB09943ED08A3E4

SSDEEP:

24576:zkydvLcSyyU+08B8tIwwss55r3Nyb8xKJVwW5HRS9GpUFUP5T/5:AydaNtTArN3UJVHFpNxL

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

    • Low-level write access rights to disk partition

      • winosntkrnl.exe (PID: 4024)

    • Deletes shadow copies

      • cmd.exe (PID: 2764)
      • cmd.exe (PID: 4000)

    • Starts BCDEDIT.EXE to disable recovery

      • cmd.exe (PID: 2408)

  • SUSPICIOUS

    • Low-level read access rights to disk partition

      • winosntkrnl.exe (PID: 4024)

    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 2420)
      • cmd.exe (PID: 3644)
      • cmd.exe (PID: 2608)

    • Uses ICACLS.EXE to modify access control list

      • cmd.exe (PID: 1360)

    • Starts CMD.EXE for commands execution

      • winosntkrnl.exe (PID: 4024)

    • Starts Internet Explorer

      • winosntkrnl.exe (PID: 4024)

  • INFO

    • Reads Internet Cache Settings

      • iexplore.exe (PID: 2364)

    • Changes internet zones settings

      • iexplore.exe (PID: 2364)

    • Application launched itself

      • iexplore.exe (PID: 2364)
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: 2020:07:12 23:15:41+02:00
PEType: PE32
LinkerVersion: 14.25
CodeSize: 1704448
InitializedDataSize: 479232
UninitializedDataSize: -
EntryPoint: 0xca54d
OSVersion: 6
ImageVersion: -
SubsystemVersion: 6
Subsystem: Windows command line
FileVersionNumber: 1.0.0.1
ProductVersionNumber: 1.0.0.1
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Microsoft
FileDescription: Windows Update Assisatant
FileVersion: 0.71
InternalName: WinUpdateAssistant
LegalCopyright: Copyright (C) 2020
OriginalFileName: WinUpdateAssistant.exe
ProductName: Windows Update Assistant
ProductVersion: 1.0.0.1

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI
Compilation Date: 12-Jul-2020 21:15:41
Detected languages:
  • English - New Zealand
  • English - United States
Debug artifacts:
  • E:\Wayne Kurr\rickrolltrojan\totallymspowertools-Portable\rickroll\Debug\winosntkrnl.pdb
CompanyName: Microsoft
FileDescription: Windows Update Assisatant
FileVersion: 0.71
InternalName: WinUpdateAssistant
LegalCopyright: Copyright (C) 2020
OriginalFilename: WinUpdateAssistant.exe
ProductName: Windows Update Assistant
ProductVersion: 1.0.0.1

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: 0x00000100

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 9
Time date stamp: 12-Jul-2020 21:15:41
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.textbss\xb1\x05\x0c
0x00001000
0x000C05B1
0x00000000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.text
0x000C2000
0x001A00D4
0x001A0200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.46419
.rdata
0x00263000
0x0005C4C0
0x0005C600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.67778
.data
0x002C0000
0x00005F0C
0x00003E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
3.92783
.idata
0x002C6000
0x00001595
0x00001600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.63144
.msvcjmc\\x01
0x002C8000
0x0000015C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.610817
.00cfg
0x002C9000
0x00000109
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
0.110557
.rsrc
0x002CA000
0x00000E59
0x00001000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.47951
.reloc
0x002CB000
0x0000FE72
0x00010000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.18116

Resources

Title
Entropy
Size
Codepage
Language
Type
1
4.91862
388
UNKNOWN
English - United States
RT_MANIFEST
101
1.91924
20
UNKNOWN
English - New Zealand
RT_GROUP_ICON

Imports

ADVAPI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll
ntdll.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
67
Monitored processes
28
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start winosntkrnl.exe cmd.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs taskkill.exe no specs cmd.exe no specs taskkill.exe no specs cmd.exe no specs taskkill.exe no specs cmd.exe no specs shutdown.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs vssadmin.exe no specs cmd.exe no specs wmic.exe no specs cmd.exe no specs bcdedit.exe no specs bcdedit.exe no specs cmd.exe no specs cmd.exe no specs iexplore.exe no specs iexplore.exe no specs winosntkrnl.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
376C:\Windows\system32\cmd.exe /c cd %UserProfile%C:\Windows\system32\cmd.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
928C:\Windows\system32\cmd.exe /c RD /s /q C:WindowsMinidumpC:\Windows\system32\cmd.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
2
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
1096C:\Windows\system32\cmd.exe /c MD %UserProfile%DocumentsC:\Windows\system32\cmd.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
1360C:\Windows\system32\cmd.exe /c icacls . /grant Everyone:F /T /C /QC:\Windows\system32\cmd.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
1904C:\Windows\system32\cmd.exe /c echo offC:\Windows\system32\cmd.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2080"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2364 CREDAT:275457 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe—iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
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:\systemroot\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
2100wmic shadowcopy deleteC:\Windows\System32\Wbem\WMIC.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
WMI Commandline Utility
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\wbem\wmic.exe
c:\systemroot\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\ole32.dll
c:\windows\system32\user32.dll
2216C:\Windows\system32\cmd.exe /c RD /s /q %UserProfile%DocumentsC:\Windows\system32\cmd.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
2
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2252icacls . /grant Everyone:F /T /C /QC:\Windows\system32\icacls.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\icacls.exe
c:\systemroot\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\ntmarta.dll
c:\windows\system32\wldap32.dll
2364"C:\Program Files\Internet Explorer\iexplore.exe" https://www.youtube.com/watch?v=oHg5SJYRHA0C:\Program Files\Internet Explorer\iexplore.exe—winosntkrnl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Internet Explorer
Exit code:
1
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\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
167
Read events
146
Write events
18
Delete events
3

Modification events

(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
3654213222
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30824593
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
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
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2364) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
Executable files
0
Suspicious files
0
Text files
2
Unknown types
0

Dropped files

PID
Process
Filename
Type
2364iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF4DB5E2B6FFE24610.TMP —
MD5:—
SHA256:—
2364iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{058B7925-C485-11EA-A3B5-5254004A04AF}.dat —
MD5:—
SHA256:—
4024winosntkrnl.exeC:\Users\admin\Desktop\Congratulations.txttext
MD5:827166658D8AF62505A701A03C4B868E
SHA256:323047613BE79661D266622776100A8355CD62F6BB99E4F26F42C0356A4FA4AB
4024winosntkrnl.exeC:\hmm.txttext
MD5:DE7C76271DD65D175B6DA07B4CE4503E
SHA256:E1876F63CE72A6EFEC91BAAE1A7CCBB9A50C836619520F838D95500035857490
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
1
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

No data

DNS requests

Domain
IP
Reputation
www.youtube.com
  • 172.217.18.110
  • 172.217.22.46
  • 172.217.22.78
  • 172.217.22.110
  • 172.217.16.206
  • 172.217.21.238
  • 172.217.23.142
  • 216.58.205.238
  • 216.58.206.14
  • 172.217.18.14
  • 172.217.18.174
  • 216.58.207.46
  • 216.58.207.78
  • 216.58.212.142
  • 216.58.212.174
  • 172.217.16.174
whitelisted

Threats

No threats detected
No debug info
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Reports
winosntkrnl.exe