File name:

rktools.exe

Full analysis: https://app.any.run/tasks/f689172c-8427-4461-a1d0-0c7ded54f0b5
Verdict: Malicious activity
Analysis date: September 16, 2019, 12:18:17
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, MS CAB-Installer self-extracting archive
MD5:

A623A99D60F8D34D9FBE089BB64368F2

SHA1:

3F3878FFB2C642E752D811DC05169BFCC2AA97B5

SHA256:

6260D75A2CB30201C5424DEFEC3BA505EDB92B91802825E2FD6EB9BD58ED5CCA

SSDEEP:

196608:SqArhdr9Zkj6QpxQ7ZsSn8PClkpUfawzutxChO7VhVfpQAdTDg1k1/mUJe3CEnzV:xAzXS587ZsNpdY2VhVhDdDP/X8CEl/l1

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

    • Changes the autorun value in the registry

      • rktools.exe (PID: 3204)

    • Loads dropped or rewritten executable

      • MsiExec.exe (PID: 3980)
      • MsiExec.exe (PID: 2716)

  • SUSPICIOUS

    • Executed as Windows Service

      • vssvc.exe (PID: 2376)

    • Creates files in the Windows directory

      • msiexec.exe (PID: 3716)

    • Executed via COM

      • DrvInst.exe (PID: 3892)

    • Creates COM task schedule object

      • MsiExec.exe (PID: 2716)
      • MsiExec.exe (PID: 3980)

    • Executable content was dropped or overwritten

      • msiexec.exe (PID: 3716)

  • INFO

    • Searches for installed software

      • msiexec.exe (PID: 3716)

    • Low-level read access rights to disk partition

      • vssvc.exe (PID: 2376)

    • Application launched itself

      • msiexec.exe (PID: 3716)

    • Creates a software uninstall entry

      • msiexec.exe (PID: 3716)

    • Creates files in the program directory

      • msiexec.exe (PID: 3716)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Microsoft Update - Self Extracting Cabinet (47.3)
.exe | Win32 MS Cabinet Self-Extractor (WExtract stub) (42.3)
.exe | Win32 Executable MS Visual C++ (generic) (4.3)
.exe | Win64 Executable (generic) (3.8)
.dll | Win32 Dynamic Link Library (generic) (0.9)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2001:08:18 03:42:57+02:00
PEType: PE32
LinkerVersion: 7
CodeSize: 34816
InitializedDataSize: 12295168
UninitializedDataSize: -
EntryPoint: 0x5a5e
OSVersion: 5.1
ImageVersion: 5.1
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 6.0.2600.0
ProductVersionNumber: 6.0.2600.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Microsoft Corporation
FileDescription: Win32 Cabinet Self-Extractor
FileVersion: 6.00.2600.0000
InternalName: Wextract
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFileName: WEXTRACT.EXE
ProductName: Microsoft® Windows® Operating System
ProductVersion: 6.00.2600.0000

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 18-Aug-2001 01:42:57
Detected languages:
  • English - United States
Debug artifacts:
  • .pdb
CompanyName: Microsoft Corporation
FileDescription: Win32 Cabinet Self-Extractor
FileVersion: 6.00.2600.0000
InternalName: Wextract
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFilename: WEXTRACT.EXE
ProductName: Microsoft® Windows® Operating System
ProductVersion: 6.00.2600.0000

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: 0x000000C8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 18-Aug-2001 01:42:57
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x0000861A
0x00008800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.55102
.data
0x0000A000
0x00001BE4
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.18428
.rsrc
0x0000C000
0x00BBA000
0x00BB9800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.99948

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.34858
1024
Latin 1 / Western European
English - United States
RT_VERSION
2
3.53793
296
Latin 1 / Western European
English - United States
RT_ICON
63
2.48958
140
Latin 1 / Western European
English - United States
RT_STRING
76
3.2674
1312
Latin 1 / Western European
English - United States
RT_STRING
77
3.29977
1484
Latin 1 / Western European
English - United States
RT_STRING
80
3.27174
1200
Latin 1 / Western European
English - United States
RT_STRING
83
3.2912
1098
Latin 1 / Western European
English - United States
RT_STRING
85
3.13591
974
Latin 1 / Western European
English - United States
RT_STRING
2001
3.35785
716
Latin 1 / Western European
English - United States
RT_DIALOG
2002
3.34986
394
Latin 1 / Western European
English - United States
RT_DIALOG

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
USER32.dll
VERSION.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
43
Monitored processes
10
Malicious processes
0
Suspicious processes
2

Behavior graph

Click at the process to see the details
start rktools.exe msiexec.exe no specs msiexec.exe pcaui.exe no specs msiexec.exe no specs vssvc.exe no specs drvinst.exe no specs msiexec.exe no specs msiexec.exe no specs msiexec.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
796C:\Windows\system32\MsiExec.exe -Embedding E1DBB9D0225F7131034EA8C1E9D0DC8CC:\Windows\system32\MsiExec.exe—msiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.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\user32.dll
c:\windows\system32\gdi32.dll
2376C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe—services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Microsoft® Volume Shadow Copy Service
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\vssvc.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\user32.dll
c:\windows\system32\gdi32.dll
2420msiexec /i rktools.msiC:\Windows\system32\msiexec.exe—rktools.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.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\user32.dll
c:\windows\system32\gdi32.dll
2692"C:\Windows\System32\pcaui.exe" /g {d8ff6d16-6a3a-468a-8b44-01714ddc49ea} /x {de21dff1-3ea2-4465-98dd-0ad4d23b15fd} /a "Windows Resource Kit Tools" /v "Microsoft" /s "Windows Resource Kit Tools have not been designed or tested with this version of Windows and might not run correctly." /b 1C:\Windows\System32\pcaui.exe—msiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Program Compatibility Assistant User Interface
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\pcaui.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\apphelp.dll
c:\windows\system32\user32.dll
2716"C:\Windows\system32\MsiExec.exe" /Y "C:\Program Files\Windows Resource Kits\Tools\iviewers.dll"C:\Windows\system32\MsiExec.exe—msiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.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\user32.dll
c:\windows\system32\lpk.dll
3204"C:\Users\admin\AppData\Local\Temp\rktools.exe" C:\Users\admin\AppData\Local\Temp\rktools.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Win32 Cabinet Self-Extractor
Exit code:
0
Version:
6.00.2600.0000
Modules
Images
c:\users\admin\appdata\local\temp\rktools.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\gdi32.dll
c:\windows\system32\user32.dll
3280C:\Windows\system32\MsiExec.exe -Embedding DDFC5381A7E9AD745E8651F112C0A405 CC:\Windows\system32\MsiExec.exe—msiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.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\user32.dll
c:\windows\system32\gdi32.dll
3716C:\Windows\system32\msiexec.exe /VC:\Windows\system32\msiexec.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.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\gdi32.dll
c:\windows\system32\user32.dll
3892DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot22" "" "" "695c3f483" "00000000" "000002D4" "000003A4"C:\Windows\system32\DrvInst.exe—svchost.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Driver Installation Module
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\drvinst.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\setupapi.dll
c:\windows\system32\cfgmgr32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
3980"C:\Windows\system32\MsiExec.exe" /Y "C:\Windows\system32\pkiview.dll"C:\Windows\system32\MsiExec.exe—msiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.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\user32.dll
c:\windows\system32\lpk.dll
Total events
962
Read events
504
Write events
456
Delete events
2

Modification events

(PID) Process:(3204) rktools.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:wextract_cleanup0
Value:
rundll32.exe C:\Windows\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\admin\AppData\Local\Temp\IXP000.TMP\"
(PID) Process:(3716) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\SystemRestore
Operation:writeName:SrCreateRp (Enter)
Value:
4000000000000000BA89C6F6886CD501840E000090080000D5070000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(3716) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\SPP
Operation:writeName:SppCreate (Enter)
Value:
4000000000000000BA89C6F6886CD501840E000090080000D0070000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(3716) msiexec.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SPP
Operation:writeName:LastIndex
Value:
24
(PID) Process:(3716) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\SPP
Operation:writeName:SppGatherWriterMetadata (Enter)
Value:
4000000000000000708523F7886CD501840E000090080000D3070000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(3716) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\VssapiPublisher
Operation:writeName:IDENTIFY (Enter)
Value:
4000000000000000708523F7886CD501840E00004C0F0000E8030000010000000000000000000000ED56C1502AC05E4CB60A57E419DEC8070000000000000000
(PID) Process:(2376) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\Registry Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000004EBF3DF7886CD501480900008C0B0000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
(PID) Process:(2376) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\ASR Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000004EBF3DF7886CD50148090000B80F0000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
(PID) Process:(2376) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\Shadow Copy Optimization Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000004EBF3DF7886CD50148090000980B0000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
(PID) Process:(2376) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\COM+ REGDB Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000004EBF3DF7886CD50148090000C40F0000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
Executable files
117
Suspicious files
14
Text files
54
Unknown types
6

Dropped files

PID
Process
Filename
Type
3204rktools.exeC:\Users\admin\AppData\Local\Temp\IXP000.TMP\rktools.msi —
MD5:—
SHA256:—
2420msiexec.exeC:\Users\admin\AppData\Local\Temp\MSI412F.tmp —
MD5:—
SHA256:—
3716msiexec.exeC:\System Volume Information\SPP\metadata-2 —
MD5:—
SHA256:—
3716msiexec.exeC:\Windows\Installer\178656.msi —
MD5:—
SHA256:—
3716msiexec.exeC:\Windows\Installer\MSI8C32.tmp —
MD5:—
SHA256:—
3716msiexec.exeC:\Users\admin\AppData\Local\Temp\~DF74DC48803EB39781.TMP —
MD5:—
SHA256:—
2376vssvc.exeC: —
MD5:—
SHA256:—
3716msiexec.exeC:\Windows\Installer\178657.ipibinary
MD5:—
SHA256:—
3892DrvInst.exeC:\Windows\INF\setupapi.ev1binary
MD5:—
SHA256:—
3716msiexec.exeC:\Windows\Installer\MSI8F02.tmpbinary
MD5:—
SHA256:—
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
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Reports
rktools.exe