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 |
.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) |
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 |
Architecture: | IMAGE_FILE_MACHINE_I386 |
---|---|
Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_CUI |
Compilation Date: | 12-Jul-2020 21:15:41 |
Detected languages: |
|
Debug artifacts: |
|
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 |
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 |
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: |
|
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 |
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 |
ADVAPI32.dll |
KERNEL32.dll |
SHELL32.dll |
USER32.dll |
ntdll.dll |
PID | CMD | Path | Indicators | Parent process |
---|---|---|---|---|
2680 | "C:\Users\admin\Desktop\winosntkrnl.exe" | C:\Users\admin\Desktop\winosntkrnl.exe | — | explorer.exe |
User: admin Company: Microsoft Integrity Level: MEDIUM Description: Windows Update Assisatant Exit code: 3221226540 Version: 0.71 | ||||
4024 | "C:\Users\admin\Desktop\winosntkrnl.exe" | C:\Users\admin\Desktop\winosntkrnl.exe | explorer.exe | |
User: admin Company: Microsoft Integrity Level: HIGH Description: Windows Update Assisatant Version: 0.71 | ||||
1904 | C:\Windows\system32\cmd.exe /c echo off | 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) | ||||
1360 | C:\Windows\system32\cmd.exe /c icacls . /grant Everyone:F /T /C /Q | 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) | ||||
2252 | icacls . /grant Everyone:F /T /C /Q | C:\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) | ||||
2608 | C:\Windows\system32\cmd.exe /c taskkill /f /im explorer.exe | 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) | ||||
3712 | taskkill /f /im explorer.exe | C:\Windows\system32\taskkill.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
3644 | C:\Windows\system32\cmd.exe /c taskkill /f /im regedit.exe | C:\Windows\system32\cmd.exe | — | winosntkrnl.exe |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 128 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
2520 | taskkill /f /im regedit.exe | C:\Windows\system32\taskkill.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 128 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
2420 | C:\Windows\system32\cmd.exe /c taskkill /f /im lsass.exe | 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) |
(PID) Process: | — | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Objects\{345b46fd-a9f9-11e7-a83c-e8a4f72b1d33}\Elements\16000009 |
Operation: | write | Name: | Element |
Value: 00 | |||
(PID) Process: | (4024) winosntkrnl.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached |
Operation: | write | Name: | {17FE9752-0B5A-4665-84CD-569794602F5C} {7F9185B0-CB92-43C5-80A9-92277A4F7B54} 0xFFFF |
Value: 01000000000000003CC6D7C79158D601 | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager |
Operation: | write | Name: | NextCheckForUpdateLowDateTime |
Value: 3654213222 | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager |
Operation: | write | Name: | NextCheckForUpdateHighDateTime |
Value: 30824593 | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
Operation: | write | Name: | CachePrefix |
Value: | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main |
Operation: | write | Name: | CompatibilityFlags |
Value: 0 | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings |
Operation: | write | Name: | ProxyEnable |
Value: 0 | |||
(PID) Process: | (2364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections |
Operation: | write | Name: | SavedLegacySettings |
Value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|
PID | Process | Filename | Type | |
---|---|---|---|---|
2364 | iexplore.exe | C:\Users\admin\AppData\Local\Temp\~DF4DB5E2B6FFE24610.TMP | — | |
MD5:— | SHA256:— | |||
2364 | iexplore.exe | C:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{058B7925-C485-11EA-A3B5-5254004A04AF}.dat | — | |
MD5:— | SHA256:— | |||
4024 | winosntkrnl.exe | C:\hmm.txt | text | |
MD5:DE7C76271DD65D175B6DA07B4CE4503E | SHA256:E1876F63CE72A6EFEC91BAAE1A7CCBB9A50C836619520F838D95500035857490 | |||
4024 | winosntkrnl.exe | C:\Users\admin\Desktop\Congratulations.txt | text | |
MD5:827166658D8AF62505A701A03C4B868E | SHA256:323047613BE79661D266622776100A8355CD62F6BB99E4F26F42C0356A4FA4AB |
Domain | IP | Reputation |
---|---|---|
www.youtube.com |
| whitelisted |