File name:

VNC-Viewer-6.20.529-Windows.exe

Full analysis: https://app.any.run/tasks/1e2a38a7-8be1-43e1-8b77-ac132cbdb0bc
Verdict: Malicious activity
Analysis date: August 05, 2020, 04:48:40
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
MD5:

4702659C961EFC0BB3CC8E51F9B0F57C

SHA1:

E07351A94CEAEBCB8A9BE7BA951B0023D89CC2EE

SHA256:

6764E39303B4C49E8401E91878B1B26E3706AB5FFB4BAC5F6E6334ECFE3363AE

SSDEEP:

196608:OXvJ9jQrahC3EbfDEUiBu++xImRpcDjvu9Jp:YB9jQWhCCiBF+xImXMLuN

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

    • Application was dropped or rewritten from another process

      • vncviewer.exe (PID: 3580)
      • vncviewer.exe (PID: 3328)

  • SUSPICIOUS

    • Starts Microsoft Installer

      • VNC-Viewer-6.20.529-Windows.exe (PID: 2144)

    • Application launched itself

      • vncviewer.exe (PID: 3580)

    • Modifies the open verb of a shell class

      • msiexec.exe (PID: 4032)

    • Executed as Windows Service

      • vssvc.exe (PID: 2516)

    • Executable content was dropped or overwritten

      • msiexec.exe (PID: 4032)

    • Creates files in the user directory

      • vncviewer.exe (PID: 3580)

  • INFO

    • Application launched itself

      • msiexec.exe (PID: 4032)

    • Low-level read access rights to disk partition

      • vssvc.exe (PID: 2516)

    • Creates a software uninstall entry

      • msiexec.exe (PID: 4032)

    • Manual execution by user

      • vncviewer.exe (PID: 3580)

    • Loads dropped or rewritten executable

      • MsiExec.exe (PID: 2596)

    • Creates files in the program directory

      • msiexec.exe (PID: 4032)

    • Searches for installed software

      • msiexec.exe (PID: 4032)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2020:05:29 13:59:20+02:00
PEType: PE32
LinkerVersion: 14.14
CodeSize: 1202176
InitializedDataSize: 9343488
UninitializedDataSize: -
EntryPoint: 0x83a9a
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI
FileVersionNumber: 6.20.529.42646
ProductVersionNumber: 6.20.529.42646
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (British)
CharacterSet: Unicode
CompanyName: RealVNC Ltd
FileDescription: VNC® Viewer Installer
FileVersion: 6.20.529 (r42646)
InternalName: vncviewer-installer
LegalCopyright: Copyright © 2002-2020 RealVNC Ltd.
LegalTrademarks: RealVNC and VNC are trademarks of RealVNC Ltd and are protected by trademark registrations and/or pending trademark applications in the European Union, United States of America and other jurisdictions.
OriginalFileName: vncviewer-installer.exe
ProductName: VNC®
ProductVersion: 6.20.529 (r42646)
ProgramName: VNC® Viewer Installer

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 29-May-2020 11:59:20
Detected languages:
  • English - United Kingdom
  • English - United States
Debug artifacts:
  • C:\jenkins-root\workspace\VNC_6.7.x\label\win-ent\bld32\RelWithDebInfo\installers\viewer_bootstrap.pdb
CompanyName: RealVNC Ltd
FileDescription: VNC® Viewer Installer
FileVersion: 6.20.529 (r42646)
InternalName: vncviewer-installer
LegalCopyright: Copyright © 2002-2020 RealVNC Ltd.
LegalTrademarks: RealVNC and VNC are trademarks of RealVNC Ltd and are protected by trademark registrations and/or pending trademark applications in the European Union, United States of America and other jurisdictions.
OriginalFilename: vncviewer-installer.exe
ProductName: VNC®
ProductVersion: 6.20.529 (r42646)
ProgramName: VNC® Viewer Installer

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: 0x00000118

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 29-May-2020 11:59:20
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
.text
0x00001000
0x0012567A
0x00125800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.58994
.rdata
0x00127000
0x0003EA34
0x0003EC00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.48746
.data
0x00166000
0x00006E3C
0x00004C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.79193
.rsrc
0x0016D000
0x00896048
0x00896200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.70713
.reloc
0x00A04000
0x0000F680
0x0000F800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.67301

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.2223
1351
Latin 1 / Western European
English - United States
RT_MANIFEST
2
3.47151
1384
Latin 1 / Western European
English - United States
RT_ICON
3
3.91708
744
Latin 1 / Western European
English - United States
RT_ICON
4
3.91366
2216
Latin 1 / Western European
English - United States
RT_ICON
LANGDESCS.TXT
4.49238
55
Latin 1 / Western European
English - United States
BUILTINRESOURCE
LANGS.TXT
2.89629
14
Latin 1 / Western European
English - United States
BUILTINRESOURCE
VNC32.MSI
7.71525
4210688
Latin 1 / Western European
UNKNOWN
BUILTINRESOURCE
VNC64.MSI
7.68882
4784128
Latin 1 / Western European
UNKNOWN
BUILTINRESOURCE
!APP_ICON
2.64576
62
Latin 1 / Western European
English - United States
RT_GROUP_ICON

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
OLEAUT32.dll
SHELL32.dll
USER32.dll
WS2_32.dll
ole32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
42
Monitored processes
7
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start vnc-viewer-6.20.529-windows.exe no specs msiexec.exe no specs msiexec.exe vssvc.exe no specs msiexec.exe no specs vncviewer.exe vncviewer.exe

Process information

PID
CMD
Path
Indicators
Parent process
1444C:\Windows\system32\msiexec.exe /i C:\Users\admin\AppData\Local\Temp\vnc32.msi ProductLanguage=1033C:\Windows\system32\msiexec.exe—VNC-Viewer-6.20.529-Windows.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
2144"C:\Users\admin\AppData\Local\Temp\VNC-Viewer-6.20.529-Windows.exe" C:\Users\admin\AppData\Local\Temp\VNC-Viewer-6.20.529-Windows.exe—explorer.exe
User:
admin
Company:
RealVNC Ltd
Integrity Level:
MEDIUM
Description:
VNC® Viewer Installer
Exit code:
0
Version:
6.20.529 (r42646)
Modules
Images
c:\users\admin\appdata\local\temp\vnc-viewer-6.20.529-windows.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\comctl32.dll
c:\windows\system32\gdi32.dll
2516C:\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
2596C:\Windows\system32\MsiExec.exe -Embedding 5EA409D0BBB68ADB9138C759DCD7DBDE M Global\MSI0000C:\Windows\system32\MsiExec.exe—msiexec.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\user32.dll
c:\windows\system32\gdi32.dll
3328"C:\Program Files\RealVNC\VNC Viewer\vncviewer.exe" -child 1.1.1.1 -hash 0594edf89330105e249867f64bcb15b2deb13a59c45b1ef99ad2871339228585 -sid S-1-5-21-1302019708-1500728564-335382590-1000 RealVNC.admin.vncviewer.vncpipehelper.1511308334C:\Program Files\RealVNC\VNC Viewer\vncviewer.exe
vncviewer.exe
User:
admin
Company:
RealVNC Ltd
Integrity Level:
MEDIUM
Description:
VNC® Viewer
Exit code:
0
Version:
6.20.529 (r42646)
Modules
Images
c:\program files\realvnc\vnc viewer\vncviewer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\msasn1.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
3580"C:\Program Files\RealVNC\VNC Viewer\vncviewer.exe" C:\Program Files\RealVNC\VNC Viewer\vncviewer.exe
explorer.exe
User:
admin
Company:
RealVNC Ltd
Integrity Level:
MEDIUM
Description:
VNC® Viewer
Exit code:
0
Version:
6.20.529 (r42646)
Modules
Images
c:\program files\realvnc\vnc viewer\vncviewer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\msasn1.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
4032C:\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\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
Total events
970
Read events
680
Write events
274
Delete events
16

Modification events

(PID) Process:(1444) msiexec.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\132\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(4032) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\SystemRestore
Operation:writeName:SrCreateRp (Enter)
Value:
4000000000000000A4036AC7E36AD601C00F0000DC090000D5070000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(4032) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\SPP
Operation:writeName:SppCreate (Enter)
Value:
4000000000000000A4036AC7E36AD601C00F0000DC090000D0070000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(4032) msiexec.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SPP
Operation:writeName:LastIndex
Value:
39
(PID) Process:(4032) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\SPP
Operation:writeName:SppGatherWriterMetadata (Enter)
Value:
4000000000000000A63AC2C7E36AD601C00F0000DC090000D3070000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(4032) msiexec.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\VssapiPublisher
Operation:writeName:IDENTIFY (Enter)
Value:
4000000000000000009DC4C7E36AD601C00F00008C080000E80300000100000000000000000000006819B0E60DFDA147AB45896A038F836B0000000000000000
(PID) Process:(2516) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\ASR Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000000EC4CBC7E36AD601D4090000480D0000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
(PID) Process:(2516) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\COM+ REGDB Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000000EC4CBC7E36AD601D40900009C020000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
(PID) Process:(2516) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\Registry Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000000EC4CBC7E36AD601D40900003C0D0000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
(PID) Process:(2516) vssvc.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\Shadow Copy Optimization Writer
Operation:writeName:IDENTIFY (Enter)
Value:
40000000000000000EC4CBC7E36AD601D40900006C070000E8030000010000000100000000000000000000000000000000000000000000000000000000000000
Executable files
3
Suspicious files
8
Text files
4
Unknown types
1

Dropped files

PID
Process
Filename
Type
2144VNC-Viewer-6.20.529-Windows.exeC:\Users\admin\AppData\Local\Temp\vnc32.msi —
MD5:—
SHA256:—
4032msiexec.exeC:\System Volume Information\SPP\metadata-2 —
MD5:—
SHA256:—
4032msiexec.exeC:\Windows\Installer\dee39.msi —
MD5:—
SHA256:—
4032msiexec.exeC:\Users\admin\AppData\Local\Temp\~DF7C57830452942126.TMP —
MD5:—
SHA256:—
2516vssvc.exeC: —
MD5:—
SHA256:—
4032msiexec.exeC:\Program Files\RealVNC\VNC Viewer\SetupCache\VNC-Viewer-6.20.529-Windows-32bit.msi —
MD5:—
SHA256:—
4032msiexec.exeC:\Program Files\RealVNC\VNC Viewer\SetupCache\VNC-Viewer-6.20.529-Windows-32bit.msiKey —
MD5:—
SHA256:—
4032msiexec.exeC:\Windows\Installer\dee3c.msi —
MD5:—
SHA256:—
4032msiexec.exeC:\Windows\Installer\MSIF9A6.tmp —
MD5:—
SHA256:—
4032msiexec.exeC:\Windows\Installer\MSIF9F5.tmp —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
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

PID
Process
IP
Domain
ASN
CN
Reputation
3580
vncviewer.exe
165.254.191.229:443
hb-c.services.vnc.com
NTT America, Inc.
US
unknown
3328
vncviewer.exe
1.1.1.1:5900
—
—
AU
malicious

DNS requests

Domain
IP
Reputation
hb-c.services.vnc.com
  • 165.254.191.229
unknown

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
VNC-Viewer-6.20.529-Windows.exe