download:

/LegacyUpdate/LegacyUpdate/releases/download/v1.9.0.0/LegacyUpdate-1.9.exe

Full analysis: https://app.any.run/tasks/6465f3e3-79cf-4ceb-b145-45168c084ac4
Verdict: Malicious activity
Analysis date: February 07, 2024, 06:42:00
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, Nullsoft Installer self-extracting archive
MD5:

A0C1369D0226EE8E1E108280078883F8

SHA1:

7C17E830CECFBC1855B7F63051F6B109A3FCFEAB

SHA256:

F4808F6025F60CCCEE6FD8E15C36A8DB9340AD6A406E0166D1667770757BDA94

SSDEEP:

24576:zWSiriWVft7mdHfvaGXpOl4lUmugKPGRanTZjlf:zWSiriWRt7mdHfvaGXpOl4lU7gKPGRaf

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

    • Drops the executable file immediately after the start

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Uses NET.EXE to stop Windows Update service

      • LegacyUpdate-1.9.exe (PID: 3472)
      • net.exe (PID: 3548)
    • Starts NET.EXE for service management

      • net.exe (PID: 3548)
      • LegacyUpdate-1.9.exe (PID: 3472)
    • Registers / Runs the DLL via REGSVR32.EXE

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Starts NET.EXE to view/add/change user profiles

      • net.exe (PID: 560)
      • LegacyUpdate-1.9.exe (PID: 3472)
  • SUSPICIOUS

    • Malware-specific behavior (creating "System.dll" in Temp)

      • LegacyUpdate-1.9.exe (PID: 3472)
    • The process creates files with name similar to system file names

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Reads the Internet Settings

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Executable content was dropped or overwritten

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Process drops legitimate windows executable

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Uses RUNDLL32.EXE to load library

      • LegacyUpdate-1.9.exe (PID: 3472)
  • INFO

    • Checks supported languages

      • LegacyUpdate-1.9.exe (PID: 3472)
      • updroots.exe (PID: 3436)
      • updroots.exe (PID: 3000)
      • updroots.exe (PID: 3580)
      • updroots.exe (PID: 3412)
      • updroots.exe (PID: 3600)
    • Reads the computer name

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Checks proxy server information

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Create files in a temporary directory

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Creates files in the program directory

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Reads the machine GUID from the registry

      • LegacyUpdate-1.9.exe (PID: 3472)
    • Application launched itself

      • iexplore.exe (PID: 3704)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2023:07:20 09:58:41+02:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit, No debug
PEType: PE32
LinkerVersion: 2.4
CodeSize: 44032
InitializedDataSize: 61952
UninitializedDataSize: 129024
EntryPoint: 0x4590
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 1.9.0.0
ProductVersionNumber: 1.9.0.0
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Hashbang Productions
FileDescription: Legacy Update
FileVersion: 1.9.0.0
LegalCopyright: © Hashbang Productions. All rights reserved.
ProductName: Legacy Update
ProductVersion: 1.9.0.0
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
61
Monitored processes
16
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start legacyupdate-1.9.exe updroots.exe no specs updroots.exe no specs updroots.exe no specs updroots.exe no specs updroots.exe no specs net.exe no specs net1.exe no specs regsvr32.exe no specs net.exe no specs rundll32.exe no specs iexplore.exe net1.exe no specs iexplore.exe iexplore.exe legacyupdate-1.9.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
560"C:\Windows\system32\net.exe" user /delete LegacyUpdateTempC:\Windows\System32\net.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Net Command
Exit code:
2
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\net.exe
c:\windows\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\netutils.dll
c:\windows\system32\browcli.dll
752"C:\Users\admin\Desktop\LegacyUpdate-1.9.exe" C:\Users\admin\Desktop\LegacyUpdate-1.9.exeexplorer.exe
User:
admin
Company:
Hashbang Productions
Integrity Level:
MEDIUM
Description:
Legacy Update
Exit code:
3221226540
Version:
1.9.0.0
Modules
Images
c:\users\admin\desktop\legacyupdate-1.9.exe
c:\windows\system32\ntdll.dll
2612C:\Windows\system32\net1 stop wuauservC:\Windows\System32\net1.exenet.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Net Command
Exit code:
2
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\net1.exe
c:\windows\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\dsrole.dll
c:\windows\system32\netutils.dll
3000"C:\ProgramData\Legacy Update\updroots.exe" authroots.sstC:\ProgramData\Legacy Update\updroots.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
UPDROOTS
Exit code:
0
Version:
5.2.3790.4456 built by: dnsrv(ansaboor)
Modules
Images
c:\programdata\legacy update\updroots.exe
c:\windows\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
3320C:\Windows\system32\rundll32.exe "C:\Program Files\Legacy Update\LegacyUpdate.dll",LaunchUpdateSite firstrunC:\Windows\System32\rundll32.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows host process (Rundll32)
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\rundll32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.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
c:\windows\system32\imagehlp.dll
3412"C:\ProgramData\Legacy Update\updroots.exe" -l roots.sstC:\ProgramData\Legacy Update\updroots.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
UPDROOTS
Exit code:
0
Version:
5.2.3790.4456 built by: dnsrv(ansaboor)
Modules
Images
c:\programdata\legacy update\updroots.exe
c:\windows\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
3436"C:\ProgramData\Legacy Update\updroots.exe" updroots.sstC:\ProgramData\Legacy Update\updroots.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
UPDROOTS
Exit code:
0
Version:
5.2.3790.4456 built by: dnsrv(ansaboor)
Modules
Images
c:\programdata\legacy update\updroots.exe
c:\windows\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
3472"C:\Users\admin\Desktop\LegacyUpdate-1.9.exe" C:\Users\admin\Desktop\LegacyUpdate-1.9.exe
explorer.exe
User:
admin
Company:
Hashbang Productions
Integrity Level:
HIGH
Description:
Legacy Update
Exit code:
0
Version:
1.9.0.0
Modules
Images
c:\users\admin\desktop\legacyupdate-1.9.exe
c:\windows\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\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\gdi32.dll
3548"C:\Windows\system32\net.exe" stop wuauservC:\Windows\System32\net.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Net Command
Exit code:
2
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\net.exe
c:\windows\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\netutils.dll
c:\windows\system32\browcli.dll
3580"C:\ProgramData\Legacy Update\updroots.exe" -d delroots.sstC:\ProgramData\Legacy Update\updroots.exeLegacyUpdate-1.9.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
UPDROOTS
Exit code:
0
Version:
5.2.3790.4456 built by: dnsrv(ansaboor)
Modules
Images
c:\programdata\legacy update\updroots.exe
c:\windows\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
55 410
Read events
52 740
Write events
2 245
Delete events
425

Modification events

(PID) Process:(3472) LegacyUpdate-1.9.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(3472) LegacyUpdate-1.9.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
460000005B010000090000000000000000000000000000000400000000000000C0E333BBEAB1D3010000000000000000000000000100000002000000C0A8016B000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(3472) LegacyUpdate-1.9.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:SecureProtocols
Value:
2688
(PID) Process:(3472) LegacyUpdate-1.9.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:SecureProtocols
Value:
2688
(PID) Process:(3472) LegacyUpdate-1.9.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp
Operation:writeName:DefaultSecureProtocols
Value:
2560
(PID) Process:(3000) updroots.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\51501FBFCE69189D609CFAF140C576755DCC1FDF
Operation:delete keyName:(default)
Value:
(PID) Process:(3000) updroots.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\E12DFB4B41D7D9C32B30514BAC1D81D8385E2D46
Operation:delete keyName:(default)
Value:
(PID) Process:(3000) updroots.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\216B2A29E62A00CE820146D8244141B92511B279
Operation:delete keyName:(default)
Value:
(PID) Process:(3000) updroots.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\74207441729CDD92EC7931D823108DC28192E2BB
Operation:delete keyName:(default)
Value:
(PID) Process:(3000) updroots.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D23209AD23D314232174E40D7F9D62139786633A
Operation:delete keyName:(default)
Value:
Executable files
6
Suspicious files
24
Text files
98
Unknown types
0

Dropped files

PID
Process
Filename
Type
3472LegacyUpdate-1.9.exeC:\Users\admin\AppData\Local\Temp\nsp360B.tmp\System.dllexecutable
MD5:333B39E1661EE18D4491227B81C1177F
SHA256:9ECBF208493200375185DAFC2D2036048925A051493E4A4EED3E12ACD875376C
3472LegacyUpdate-1.9.exeC:\Users\admin\AppData\Local\Temp\nsp360B.tmp\Patches.initext
MD5:2B1ABAD02C19544A1AE1488C24408290
SHA256:02C8CBA89DF8F19FA0B06B4B7EBB97AC1B273701142C5E7CED0CCAA1DB3ABB1E
3472LegacyUpdate-1.9.exeC:\Users\admin\AppData\Local\Temp\nsp360B.tmp\modern-header.bmpimage
MD5:6CA9768CE2CF8D08BEE76BDEFE77BD88
SHA256:239BDF82D221779561CCD10461BE17C27EE84FF0D5C17B944C8549371F448621
3472LegacyUpdate-1.9.exeC:\Users\admin\AppData\Local\Temp\nsp360B.tmp\LegacyUpdateNSIS.dllexecutable
MD5:C61309F21AE08B3215E10E40E4BB12C5
SHA256:890F79E630FCEAF2A73FFBF0C574A4F0D05CFBBE7E753A6AD135AE551FCDC2CD
3924iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EAbinary
MD5:7F4AF2405AFF3D0A84677DA6112FD6E1
SHA256:FFBFEBF9FA8D2DD3623557F872D0879054E1CFC733C562B15805AEEE1CBC45B2
3472LegacyUpdate-1.9.exeC:\Program Files\Legacy Update\LegacyUpdate.dllexecutable
MD5:FFB1A403CEE1D267AF43416AD6226121
SHA256:7ADEB274998A4786D5E4543F7105100723E4D0D93926FC90B2FDC256F9F59FA7
3472LegacyUpdate-1.9.exeC:\ProgramData\Microsoft\Windows\Start Menu\Legacy Update.lnkbinary
MD5:1754A194636EC71CBCCDDD03FBAFCF37
SHA256:B6B3D9F1879D103EBA00FA20B27156C341924DF1464AAFFAE22991B682557262
3472LegacyUpdate-1.9.exeC:\ProgramData\Legacy Update\disallowedcert.sstbinary
MD5:186256E148543246DC43D108E3B39E60
SHA256:27DD3EBF1D7FFF7F033747E2DE467B8E86DA7EA81B789B57DF2312AE3CB41C96
3472LegacyUpdate-1.9.exeC:\Windows\WindowsUpdate.logtext
MD5:99D2E2627FC975C69C5F1C281FE0037C
SHA256:2330EE0422EF2820A08A1A12102A94685B464B155A6F4267E3EA67FB3C5241F8
3472LegacyUpdate-1.9.exeC:\ProgramData\Legacy Update\updroots.sstbinary
MD5:34A75867D4111C53118C83A254813D3C
SHA256:D32E996BB6356659AF3ADD85F4B9611A4C1A13742669FBB2FAFA2224A72562F2
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
13
TCP/UDP connections
34
DNS requests
14
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3472
LegacyUpdate-1.9.exe
GET
200
93.184.221.240:80
http://download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authroots.sst
GB
binary
32.5 Kb
unknown
3472
LegacyUpdate-1.9.exe
GET
200
93.184.221.240:80
http://download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/delroots.sst
GB
binary
187 Kb
unknown
3472
LegacyUpdate-1.9.exe
GET
200
93.184.221.240:80
http://download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/roots.sst
GB
binary
5.29 Kb
unknown
3924
iexplore.exe
GET
304
93.184.221.240:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?5d09f69fde391b10
GB
unknown
3924
iexplore.exe
GET
304
93.184.221.240:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?bbe50deb7db51181
GB
unknown
3472
LegacyUpdate-1.9.exe
GET
200
93.184.221.240:80
http://download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/updroots.sst
GB
binary
625 Kb
unknown
3472
LegacyUpdate-1.9.exe
GET
200
93.184.221.240:80
http://download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcert.sst
GB
binary
113 Kb
unknown
3924
iexplore.exe
GET
200
142.250.185.131:80
http://ocsp.pki.goog/gsr1/MFEwTzBNMEswSTAJBgUrDgMCGgUABBS3V7W2nAf4FiMTjpDJKg6%2BMgGqMQQUYHtmGkUNl8qJUC99BM00qP%2F8%2FUsCEHe9DWzbNvka6iEPxPBY0w0%3D
US
binary
1.41 Kb
unknown
1080
svchost.exe
GET
200
93.184.221.240:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?1dd404ff67a3d8ee
GB
compressed
65.2 Kb
unknown
3924
iexplore.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
binary
471 b
unknown
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
whitelisted
4
System
192.168.100.255:138
whitelisted
1080
svchost.exe
224.0.0.252:5355
unknown
3472
LegacyUpdate-1.9.exe
93.184.221.240:80
download.windowsupdate.com
EDGECAST
GB
whitelisted
3924
iexplore.exe
188.114.97.3:443
legacyupdate.net
CLOUDFLARENET
NL
unknown
3924
iexplore.exe
93.184.221.240:80
download.windowsupdate.com
EDGECAST
GB
whitelisted
3924
iexplore.exe
142.250.185.131:80
ocsp.pki.goog
GOOGLE
US
whitelisted
3704
iexplore.exe
2.19.120.32:443
www.bing.com
Akamai International B.V.
DE
unknown
3704
iexplore.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted
3948
iexplore.exe
188.114.97.3:443
legacyupdate.net
CLOUDFLARENET
NL
unknown

DNS requests

Domain
IP
Reputation
download.windowsupdate.com
  • 93.184.221.240
whitelisted
legacyupdate.net
  • 188.114.97.3
  • 188.114.96.3
unknown
ctldl.windowsupdate.com
  • 93.184.221.240
whitelisted
ocsp.pki.goog
  • 142.250.185.131
whitelisted
api.bing.com
  • 13.107.5.80
whitelisted
www.bing.com
  • 2.19.120.32
  • 2.19.120.17
  • 2.19.120.21
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
iecvlist.microsoft.com
  • 152.199.19.161
whitelisted
r20swj13mr.microsoft.com
  • 152.199.19.161
whitelisted
ieonline.microsoft.com
  • 204.79.197.200
whitelisted

Threats

No threats detected
No debug info