File name:

ZoomInstaller.exe

Full analysis: https://app.any.run/tasks/352ded82-3c2c-4670-94d9-8c644d6e4b05
Verdict: Malicious activity
Analysis date: March 24, 2020, 17:00:54
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:

7A7C8E494E5F68DC24B8AEDAA2473467

SHA1:

5F3FD40A4EE78C28077E0E3AF20BA62DCD1B3E83

SHA256:

F5CF796CC090C299DBF6246EB1EFA31C335E084729A1276482E39691A73EE17E

SSDEEP:

196608:yctS0zTjDGHJHiYc1DBmjym8B+n7JrILTrgdfv7H7blBBqXTEMlwD42j5pE6E8pR:yctliHkD0jymFCLwdfvLvLBqXTEHVFqw

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

      • Installer.exe (PID: 1840)
      • Zoom.exe (PID: 1828)
      • Installer.exe (PID: 2816)
      • Zoom.exe (PID: 3104)
      • Zoom.exe (PID: 1168)

    • Loads dropped or rewritten executable

      • Zoom.exe (PID: 1828)
      • Installer.exe (PID: 1840)
      • Zoom.exe (PID: 3104)
      • Zoom.exe (PID: 1168)

  • SUSPICIOUS

    • Application launched itself

      • Installer.exe (PID: 1840)
      • Zoom.exe (PID: 1168)

    • Executable content was dropped or overwritten

      • ZoomInstaller.exe (PID: 2220)
      • Installer.exe (PID: 1840)

    • Creates a software uninstall entry

      • Installer.exe (PID: 1840)

    • Modifies the open verb of a shell class

      • Installer.exe (PID: 1840)

    • Changes IE settings (feature browser emulation)

      • Installer.exe (PID: 1840)

    • Creates files in the user directory

      • Zoom.exe (PID: 1168)
      • Zoom.exe (PID: 1828)
      • Zoom.exe (PID: 3104)
      • Installer.exe (PID: 1840)

  • INFO

    • Dropped object may contain Bitcoin addresses

      • Installer.exe (PID: 1840)

    • Reads settings of System Certificates

      • Installer.exe (PID: 1840)
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: 2019:05:07 09:59:30+02:00
PEType: PE32
LinkerVersion: 9
CodeSize: 94720
InitializedDataSize: 65024
UninitializedDataSize: -
EntryPoint: 0x16526
OSVersion: 5
ImageVersion: -
SubsystemVersion: 5
Subsystem: Windows GUI
FileVersionNumber: 4.4.0.0
ProductVersionNumber: 4.4.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Windows, Latin1
Comments: Zoom Meetings Installer
CompanyName: Zoom Video Communications, Inc.
FileDescription: Zoom Meetings Installer
FileVersion: 4,4,0,0
InternalName: Zoom Meetings Installer
LegalCopyright: © Zoom Video Communications, Inc. All rights reserved.
LegalTrademarks: Zoom Meetings Installer
OriginalFileName: Zoom Meetings Installer
ProductName: Zoom Meetings Installer
ProductVersion: 4,4,0,0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 07-May-2019 07:59:30
Detected languages:
  • English - United States
Comments: Zoom Meetings Installer
CompanyName: Zoom Video Communications, Inc.
FileDescription: Zoom Meetings Installer
FileVersion: 4,4,0,0
InternalName: Zoom Meetings Installer
LegalCopyright: © Zoom Video Communications, Inc. All rights reserved.
LegalTrademarks: Zoom Meetings Installer
OriginalFilename: Zoom Meetings Installer
ProductName: Zoom Meetings Installer
ProductVersion: 4,4,0,0

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: 0x00000108

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 4
Time date stamp: 07-May-2019 07:59:30
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_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x0001714B
0x00017200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.61764
.rdata
0x00019000
0x00005AAA
0x00005C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.33209
.data
0x0001F000
0x000030A4
0x00000C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.48997
.rsrc
0x00023000
0x00009518
0x00009600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.83519

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.28531
1470
Latin 1 / Western European
English - United States
RT_MANIFEST
2
4.64547
2440
Latin 1 / Western European
English - United States
RT_ICON
3
4.615
4264
Latin 1 / Western European
English - United States
RT_ICON
4
4.56645
9640
Latin 1 / Western European
English - United States
RT_ICON
5
4.37223
16936
Latin 1 / Western European
English - United States
RT_ICON
97
3.04857
184
Latin 1 / Western European
English - United States
RT_DIALOG
101
2.79808
76
Latin 1 / Western European
English - United States
RT_GROUP_ICON
188
2.17822
84
Latin 1 / Western European
English - United States
RT_STRING
207
1.43775
52
Latin 1 / Western European
English - United States
RT_STRING

Imports

KERNEL32.dll
MSVCR90.dll
OLEAUT32.dll
SHELL32.dll
USER32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
43
Monitored processes
6
Malicious processes
6
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start drop and start drop and start zoominstaller.exe installer.exe installer.exe zoom.exe zoom.exe no specs zoom.exe

Process information

PID
CMD
Path
Indicators
Parent process
1168"C:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exe" C:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exeC:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exe
Installer.exe
User:
admin
Company:
Zoom Video Communications, Inc.
Integrity Level:
MEDIUM
Description:
Zoom
Exit code:
0
Version:
4,6,19178,0323
Modules
Images
c:\users\admin\appdata\roaming\zoom\bin\zoom.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\users\admin\appdata\roaming\zoom\bin\dllsafecheck.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
1828Zoom.exe --action=uploadFeedbackC:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exe—Zoom.exe
User:
admin
Company:
Zoom Video Communications, Inc.
Integrity Level:
MEDIUM
Description:
Zoom
Exit code:
0
Version:
4,6,19178,0323
Modules
Images
c:\users\admin\appdata\roaming\zoom\bin\zoom.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\users\admin\appdata\roaming\zoom\bin\dllsafecheck.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
1840.\Installer.exeC:\Users\admin\AppData\Local\Temp\7zSCA857E56\Installer.exe
ZoomInstaller.exe
User:
admin
Company:
Zoom Video Communications, Inc.
Integrity Level:
MEDIUM
Description:
Zoom Installer
Exit code:
0
Version:
4,6,19178,0323
Modules
Images
c:\users\admin\appdata\local\temp\7zsca857e56\installer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\psapi.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2220"C:\Users\admin\AppData\Local\Temp\ZoomInstaller.exe" C:\Users\admin\AppData\Local\Temp\ZoomInstaller.exe
explorer.exe
User:
admin
Company:
Zoom Video Communications, Inc.
Integrity Level:
MEDIUM
Description:
Zoom Meetings Installer
Exit code:
0
Version:
4,4,0,0
Modules
Images
c:\users\admin\appdata\local\temp\zoominstaller.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
2816"C:\Users\admin\AppData\Local\Temp\7zSCA857E56\Installer.exe" /addfwexception --bin_home="C:\Users\admin\AppData\Roaming\Zoom\bin"C:\Users\admin\AppData\Local\Temp\7zSCA857E56\Installer.exe
Installer.exe
User:
admin
Company:
Zoom Video Communications, Inc.
Integrity Level:
HIGH
Description:
Zoom Installer
Exit code:
0
Version:
4,6,19178,0323
Modules
Images
c:\users\admin\appdata\local\temp\7zsca857e56\installer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\psapi.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
3104C:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exe --action=preload --runaszvideo=TRUE C:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exe
Zoom.exe
User:
admin
Company:
Zoom Video Communications, Inc.
Integrity Level:
MEDIUM
Description:
Zoom
Exit code:
0
Version:
4,6,19178,0323
Modules
Images
c:\users\admin\appdata\roaming\zoom\bin\zoom.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\users\admin\appdata\roaming\zoom\bin\dllsafecheck.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
Total events
906
Read events
821
Write events
85
Delete events
0

Modification events

(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2816) Installer.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager
Operation:writeName:PendingFileRenameOperations
Value:
\??\C:\Users\admin\AppData\Local\Temp\CptShare.dll
(PID) Process:(1840) Installer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ZoomUMX
Operation:writeName:DisplayIcon
Value:
C:\Users\admin\AppData\Roaming\Zoom\bin\Zoom.exe
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ZoomUMX
Operation:writeName:DisplayName
Value:
Zoom
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ZoomUMX
Operation:writeName:DisplayVersion
Value:
4.6
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ZoomUMX
Operation:writeName:EstimatedSize
Value:
10000
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ZoomUMX
Operation:writeName:HelpLink
Value:
https://support.zoom.us/home
(PID) Process:(1840) Installer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ZoomUMX
Operation:writeName:URLInfoAbout
Value:
https://zoom.us
Executable files
88
Suspicious files
19
Text files
14
Unknown types
3

Dropped files

PID
Process
Filename
Type
2220ZoomInstaller.exeC:\Users\admin\AppData\Local\Temp\7zSCA857E56\Zoom.msi —
MD5:—
SHA256:—
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\crashrpt_lang.initext
MD5:3BE1F13A7A5C5490D4669F3051CC5572
SHA256:9F124594495B209908D79CECADD63EE55D2282D763212C0FCD0930A5F858CA8C
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\dingdong1.pcmbinary
MD5:8FE86D9E8AA5C709BB0563243172E580
SHA256:2FBBB9AE6A463B360E1459BEE558DAFA8D864DB2423F0FE4D2C56D22C3F3A5A2
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\directui_license.txttext
MD5:AB54B14548A4CC76DD7C27414D971111
SHA256:6033476BE3D1D41166B65984E2BE94C87AC98DCE55BFEC887E932B696E859295
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\ring.pcmbinary
MD5:5D7DAED4B6DFCD8EEA1B035CB39CBDDA
SHA256:9A1E3A951410CF6248058368A67173FC1A7833E117A576713D6F21A501296709
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\nanosvg_LICENSE.txttext
MD5:078690812AF4BA8567FCC2AF2CA1D307
SHA256:E82BC3DD03400AECABE12201219BA14750DBC4B36FAAB58663A7A6068548D372
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\meeting_chat_chime.pcmbinary
MD5:B30A997B4A9DF68D8796EEF6F457F4AA
SHA256:F2FF5D73EE2A89135094ECB5165B30E351BB24EE4EEEE95508F311EECDC9811F
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\leave.pcmbinary
MD5:A514D84D4D3F013FEA537579E29F0B64
SHA256:193EDFF4D2D499751CB6180697EAE74A57170BECCFDEFEB1DDE89DAF2DFCB0F0
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\meeting_raisehand_chime.pcmbinary
MD5:79C133B6E58FA3BF72DFC7ECADAEFDF8
SHA256:30312A652460655F85A6DAF3728823668B38089B23A5999D7A5E2E44C26ACF2B
1840Installer.exeC:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\record_start.pcmbinary
MD5:AB8A5F2981E225D3EDAACB520083835A
SHA256:193C4FFEA3DE04802E97E9E62FCD8533D8CA53E7306BA113A2234959B5262EB4
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
DNS requests
3
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
1168
Zoom.exe
52.202.62.236:443
zoom.us
Amazon.com, Inc.
US
unknown
—
—
173.231.84.184:3478
—
Affiniti, LLC
US
unknown
—
—
173.231.84.184:3479
—
Affiniti, LLC
US
unknown

DNS requests

Domain
IP
Reputation
zoom.us
  • 52.202.62.236
whitelisted
dns.msftncsi.com
  • 131.107.255.255
shared

Threats

No threats detected
Process
Message
Installer.exe
[ProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe
C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src
Installer.exe
Installer.exe
[ProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe
C:\Users\admin\AppData\Roaming\Zoom\uninstall
Installer.exe
Installer.exe
C:\Users\admin\AppData\Roaming\Zoom\bin
Installer.exe
[ProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe
Installer.exe
[CZoomProductPathHelper::RecursiveRemoveDirA] Path is:
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Reports
ZoomInstaller.exe