File name:

MBR Regenerator v4.5.exe

Full analysis: https://app.any.run/tasks/56da072e-e133-4dca-9679-8c3ca2e960cc
Verdict: Malicious activity
Analysis date: January 13, 2020, 01:19:22
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:

FCA2AA6D8039DD107AFF1A3CFBE97F7B

SHA1:

7D47EB1EC59C3381CED53AF2AFE4A5C14CDF86F5

SHA256:

78729C8E1D3DCC6C70445016E36EB07D79D87033EB124598363038B7D001769F

SSDEEP:

24576:VTRqE2rb1UKApqrqI9PGi0gf0zQn8qqROJH40UdSX4ovytII6:VTr0b13ApqrqI9PORO8qLYN3UI6

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

    • Starts NET.EXE for service management

      • cmd.exe (PID: 2204)
      • cmd.exe (PID: 2644)
      • cmd.exe (PID: 716)
    • Uses Task Scheduler to run other applications

      • cmd.exe (PID: 2076)
    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 956)
    • Tries to delete the host file

      • cmd.exe (PID: 1336)
    • Low-level write access rights to disk partition

      • bootsect.exe (PID: 3724)
  • SUSPICIOUS

    • Removes files from Windows directory

      • MBR Regenerator v4.5.exe (PID: 792)
      • cmd.exe (PID: 1336)
    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 3244)
      • cmd.exe (PID: 3372)
    • Starts CMD.EXE for commands execution

      • MBR Regenerator v4.5.exe (PID: 792)
      • cmd.exe (PID: 520)
      • cmd.exe (PID: 3456)
      • cmd.exe (PID: 3848)
      • cmd.exe (PID: 2056)
      • cmd.exe (PID: 3100)
      • cmd.exe (PID: 3940)
      • cmd.exe (PID: 3428)
      • cmd.exe (PID: 748)
      • cmd.exe (PID: 504)
    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 3940)
      • cmd.exe (PID: 4044)
      • cmd.exe (PID: 2504)
    • Starts CMD.EXE for self-deleting

      • MBR Regenerator v4.5.exe (PID: 792)
    • Uses ATTRIB.EXE to modify file attributes

      • cmd.exe (PID: 2304)
      • cmd.exe (PID: 2432)
    • Creates files in the Windows directory

      • cmd.exe (PID: 520)
      • cmd.exe (PID: 3456)
      • cmd.exe (PID: 3848)
      • cmd.exe (PID: 3940)
      • cmd.exe (PID: 2056)
      • cmd.exe (PID: 3100)
      • cmd.exe (PID: 3428)
      • cmd.exe (PID: 748)
      • cmd.exe (PID: 504)
    • Creates files in the driver directory

      • cmd.exe (PID: 520)
      • cmd.exe (PID: 3848)
      • cmd.exe (PID: 3940)
      • cmd.exe (PID: 2056)
      • cmd.exe (PID: 3100)
      • cmd.exe (PID: 3456)
      • cmd.exe (PID: 504)
      • cmd.exe (PID: 3428)
      • cmd.exe (PID: 748)
    • Application launched itself

      • cmd.exe (PID: 3100)
    • Changes the desktop background image

      • regedit.exe (PID: 3600)
    • Uses ICACLS.EXE to modify access control list

      • cmd.exe (PID: 996)
      • cmd.exe (PID: 516)
      • cmd.exe (PID: 3004)
      • cmd.exe (PID: 3176)
      • cmd.exe (PID: 2876)
      • cmd.exe (PID: 2536)
      • cmd.exe (PID: 2532)
      • cmd.exe (PID: 3296)
      • cmd.exe (PID: 1584)
      • cmd.exe (PID: 3768)
    • Executes scripts

      • cmd.exe (PID: 3000)
      • cmd.exe (PID: 4032)
      • cmd.exe (PID: 1148)
    • Low-level read access rights to disk partition

      • bootsect.exe (PID: 3724)
    • Modifies the open verb of a shell class

      • regedit.exe (PID: 3600)
    • Starts SC.EXE for service management

      • cmd.exe (PID: 1596)
      • cmd.exe (PID: 520)
      • cmd.exe (PID: 2572)
  • INFO

    • Reads the hosts file

      • cmd.exe (PID: 1600)
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) (61.6)
.dll | Win32 Dynamic Link Library (generic) (14.6)
.exe | Win32 Executable (generic) (10)
.exe | Win16/32 Executable Delphi generic (4.6)
.exe | Generic Win/DOS Executable (4.4)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2011:09:26 16:51:51+02:00
PEType: PE32
LinkerVersion: 8
CodeSize: 1049088
InitializedDataSize: 139776
UninitializedDataSize: -
EntryPoint: 0x2cb1c
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 4.5.0.0
ProductVersionNumber: 4.5.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: MBR Regenerator - The Professional Windows Fix Tool
CompanyName: Josh Cell Softwares
FileDescription: MBR Regenerator - The Professional Windows Fix Tool
FileVersion: 4.5.0.0
InternalName: MBR.exe
LegalCopyright: Copyright © 2011 Josh Cell, All Rights Reserved
LegalTrademarks: Josh Cell Softwares
OriginalFileName: MBR.exe
ProductName: MBR Regenerator
ProductVersion: 4.5.0.0
AssemblyVersion: 4.5.0.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 26-Sep-2011 14:51:51
Comments: MBR Regenerator - The Professional Windows Fix Tool
CompanyName: Josh Cell Softwares
FileDescription: MBR Regenerator - The Professional Windows Fix Tool
FileVersion: 4.5.0.0
InternalName: MBR.exe
LegalCopyright: Copyright © 2011 Josh Cell, All Rights Reserved
LegalTrademarks: Josh Cell Softwares
OriginalFilename: MBR.exe
ProductName: MBR Regenerator
ProductVersion: 4.5.0.0
Assembly Version: 4.5.0.0

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: 26-Sep-2011 14:51:51
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
.rsrc
0x00002000
0x00021F38
0x00022000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.53367
.text
0x00024000
0x00100070
0x00100200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.96638
.reloc
0x00126000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.11837

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.029
861
UNKNOWN
UNKNOWN
RT_MANIFEST
2
3.41231
67624
UNKNOWN
UNKNOWN
RT_ICON
3
3.60594
38056
UNKNOWN
UNKNOWN
RT_ICON
4
3.41879
16936
UNKNOWN
UNKNOWN
RT_ICON
5
3.57351
9640
UNKNOWN
UNKNOWN
RT_ICON
6
3.37713
4264
UNKNOWN
UNKNOWN
RT_ICON
32512
2.88636
76
UNKNOWN
UNKNOWN
RT_GROUP_ICON

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
186
Monitored processes
100
Malicious processes
4
Suspicious processes
10

Behavior graph

Click at the process to see the details
start mbr regenerator v4.5.exe cmd.exe no specs taskkill.exe no specs cmd.exe no specs net.exe no specs net1.exe no specs cmd.exe no specs taskkill.exe no specs cmd.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs schtasks.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs attrib.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs cmd.exe no specs findstr.exe no specs cmd.exe no specs attrib.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs regedit.exe no specs cmd.exe no specs sc.exe no specs cmd.exe no specs sc.exe no specs cmd.exe no specs sc.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs icacls.exe no specs cmd.exe no specs bcdedit.exe no specs cmd.exe no specs bcdedit.exe no specs cmd.exe no specs cmd.exe no specs cscript.exe no specs cmd.exe no specs bootsect.exe cmd.exe no specs net.exe no specs net1.exe no specs cmd.exe no specs net.exe no specs net1.exe no specs cmd.exe no specs cscript.exe no specs cmd.exe no specs cscript.exe no specs mbr regenerator v4.5.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
272"cmd.exe" /C %WINDIR%\\System32\\bcdedit.exe -set loadoptions ENABLE_INTEGRITY_CHECKSC:\Windows\system32\cmd.exeMBR Regenerator v4.5.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\kernelbase.dll
c:\windows\system32\kernel32.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
332icacls "C:\Windows\\System32\\Wat\\WatUX.exe" /grant *S-1-1-0:FC:\Windows\system32\icacls.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Exit code:
3
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
496findstr /I /V /C:"27.0.0.1 genuine.microsoft.com" C:\Windows\system32\findstr.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Find String (QGREP) Utility
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\findstr.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.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\imm32.dll
504"cmd.exe" /C Type "%WINDIR%\\System32\\drivers\\etc\\hosts.7" | findstr /I /V /C:"127.0.0.1 catalog.microsoft.com" >>%WINDIR%\\System32\\drivers\\etc\\hosts.8C:\Windows\system32\cmd.exeMBR Regenerator v4.5.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
516"cmd.exe" /C icacls "%WINDIR%\\System32\\Wat\\npWatWeb.dll" /grant *S-1-1-0:FC:\Windows\system32\cmd.exeMBR Regenerator v4.5.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
3
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\imm32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\user32.dll
c:\windows\system32\kernelbase.dll
c:\systemroot\system32\ntdll.dll
c:\windows\system32\cmd.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\msvcrt.dll
520"cmd.exe" /C Type "%WINDIR%\\System32\\drivers\\etc\\hosts" | findstr /I /V /C:"127.0.0.1 mpa.one.microsoft.com" >>%WINDIR%\\System32\\drivers\\etc\\hosts.1C:\Windows\system32\cmd.exeMBR Regenerator v4.5.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
520"cmd.exe" /C sc config sppuinotify start= demandC:\Windows\system32\cmd.exeMBR Regenerator v4.5.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\apphelp.dll
c:\windows\system32\imm32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\user32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\winbrand.dll
532cscript "C:\Windows\\System32\\slmgr.vbs" -ipk HYF8J-CVRMY-CM74G-RPHKF-PW487C:\Windows\system32\cscript.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Microsoft ® Console Based Script Host
Exit code:
0
Version:
5.8.7600.16385
Modules
Images
c:\windows\system32\cscript.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\user32.dll
716"cmd.exe" /C net start sppsvcC:\Windows\system32\cmd.exeMBR Regenerator v4.5.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
748"cmd.exe" /C Type "%WINDIR%\\System32\\drivers\\etc\\hosts.6" | findstr /I /V /C:"127.0.0.1 wutrack.windows.com" >>%WINDIR%\\System32\\drivers\\etc\\hosts.7C:\Windows\system32\cmd.exeMBR Regenerator v4.5.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\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
Total events
487
Read events
416
Write events
71
Delete events
0

Modification events

(PID) Process:(3600) regedit.exeKey:HKEY_CURRENT_USER\Control Panel\Desktop
Operation:writeName:Wallpaper
Value:
%windir%\web\wallpaper\windows\img0.jpg
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.vbs
Operation:writeName:
Value:
VBSFile
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.vbs\PersistentHandler
Operation:writeName:
Value:
{5e941d80-bf96-11cd-b579-08002b30bfeb}
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile
Operation:writeName:
Value:
VBScript Script File
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile
Operation:writeName:FriendlyTypeName
Value:
@%SystemRoot%\System32\wshext.dll,-4802
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile\DefaultIcon
Operation:writeName:
Value:
%SystemRoot%\System32\WScript.exe,2
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile\ScriptEngine
Operation:writeName:
Value:
VBScript
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile\ScriptHostEncode
Operation:writeName:
Value:
{85131631-480C-11D2-B1F9-00C04F86C324}
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile\Shell\Edit
Operation:writeName:
Value:
&Edit
(PID) Process:(3600) regedit.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\VBSFile\Shell\Edit\Command
Operation:writeName:
Value:
%SystemRoot%\System32\Notepad.exe %1
Executable files
0
Suspicious files
0
Text files
6
Unknown types
0

Dropped files

PID
Process
Filename
Type
3096findstr.exeC:\Windows\System32\drivers\etc\hosts.6
MD5:
SHA256:
3232findstr.exeC:\Windows\System32\drivers\etc\hosts.7
MD5:
SHA256:
3624findstr.exeC:\Windows\System32\drivers\etc\hosts.8
MD5:
SHA256:
3452findstr.exeC:\Windows\System32\drivers\etc\master.mbr
MD5:
SHA256:
792MBR Regenerator v4.5.exeC:\Users\admin\AppData\Local\Temp\MBR.tmp\tweak.reg
MD5:
SHA256:
792MBR Regenerator v4.5.exeC:\Users\admin\AppData\Local\Temp\MBR.tmp\bootsect.exe
MD5:
SHA256:
3724bootsect.exe\\?\Volume{e1a82db3-a9f0-11e7-b142-806e6f6e6963}
MD5:
SHA256:
496findstr.exeC:\Windows\System32\drivers\etc\hosts.3text
MD5:3688374325B992DEF12793500307566D
SHA256:2D6BDFB341BE3A6234B24742377F93AA7C7CFB0D9FD64EFA9282C87852E57085
2796findstr.exeC:\Windows\System32\drivers\etc\hosts.2text
MD5:3688374325B992DEF12793500307566D
SHA256:2D6BDFB341BE3A6234B24742377F93AA7C7CFB0D9FD64EFA9282C87852E57085
2328findstr.exeC:\Windows\System32\drivers\etc\hosts.5text
MD5:3688374325B992DEF12793500307566D
SHA256:2D6BDFB341BE3A6234B24742377F93AA7C7CFB0D9FD64EFA9282C87852E57085
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
0
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

No data

Threats

No threats detected
No debug info