File name:

Winlocker builder by.exe

Full analysis: https://app.any.run/tasks/e1751e40-b3e3-49df-8279-987d756ad97b
Verdict: Malicious activity
Analysis date: March 16, 2024, 22:43:26
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:

E142B5538058CE6B3A93418FAE3FF592

SHA1:

701F7417E23B45D97D670BB559761F8127642B6C

SHA256:

E0690E6BA71039E1BE5161E7E93FFC7A7882F57A5D38E3F7D4E9A8FFCE080F93

SSDEEP:

98304:8/DGbDy5BTb/R6y6SD6n6wh9bc2YGF7nJnC7JHXoNLquNkW5kQf57//pfRkMva/w:5ijhG

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

      • Winlocker builder by.exe (PID: 2340)
      • upx.exe (PID: 3960)

    • Changes the autorun value in the registry

      • WinLocker.exe (PID: 1368)

    • UAC/LUA settings modification

      • WinLocker.exe (PID: 1368)

    • Changes image file execution options

      • WinLocker.exe (PID: 1368)

    • Disables the LogOff the Start menu

      • WinLocker.exe (PID: 1368)

    • Disables the Find the Start menu

      • WinLocker.exe (PID: 1368)

    • Disables the Shutdown in the Start menu

      • WinLocker.exe (PID: 1368)

    • Disables the Run the Start menu

      • WinLocker.exe (PID: 1368)

  • SUSPICIOUS

    • Reads the Internet Settings

      • Winlocker builder by.exe (PID: 2340)
      • WinLocker.exe (PID: 1368)

    • Reads security settings of Internet Explorer

      • Winlocker builder by.exe (PID: 2340)
      • WinLocker.exe (PID: 1368)

    • Reads the Windows owner or organization settings

      • WinLocker.exe (PID: 1368)

    • Executable content was dropped or overwritten

      • upx.exe (PID: 3960)
      • Winlocker builder by.exe (PID: 2340)

    • Starts CMD.EXE for commands execution

      • WinLocker.exe (PID: 1368)

    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 1556)

  • INFO

    • Checks supported languages

      • upx.exe (PID: 3960)
      • Winlocker builder by.exe (PID: 2340)
      • WinLocker.exe (PID: 1368)

    • Reads the machine GUID from the registry

      • Winlocker builder by.exe (PID: 2340)

    • Reads the computer name

      • Winlocker builder by.exe (PID: 2340)
      • WinLocker.exe (PID: 1368)

    • Reads product name

      • WinLocker.exe (PID: 1368)

    • Reads Windows Product ID

      • WinLocker.exe (PID: 1368)

    • Manual execution by a user

      • WinLocker.exe (PID: 1368)
      • WinLocker.exe (PID: 2596)
      • explorer.exe (PID: 2908)

    • Reads Environment values

      • WinLocker.exe (PID: 1368)
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: 1992:06:19 22:22:17+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, Bytes reversed lo, 32-bit, Bytes reversed hi
PEType: PE32
LinkerVersion: 2.25
CodeSize: 2355200
InitializedDataSize: 98304
UninitializedDataSize: 15732736
EntryPoint: 0x113fb00
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
51
Monitored processes
7
Malicious processes
2
Suspicious processes
1

Behavior graph

Click at the process to see the details
start winlocker builder by.exe upx.exe explorer.exe no specs winlocker.exe no specs winlocker.exe cmd.exe no specs taskkill.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1368"C:\Users\admin\Documents\WinLocker.exe" C:\Users\admin\Documents\WinLocker.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\documents\winlocker.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
1556"C:\Windows\System32\cmd.exe" /c TASKKILL /F /FI "Imagename ne WinLocker.exe" /FI "USERNAME eq %USERNAME%C:\Windows\System32\cmd.exe—WinLocker.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:\windows\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
2340"C:\Users\admin\AppData\Local\Temp\Winlocker builder by.exe" C:\Users\admin\AppData\Local\Temp\Winlocker builder by.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
1
Modules
Images
c:\users\admin\appdata\local\temp\winlocker builder by.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
2596"C:\Users\admin\Documents\WinLocker.exe" C:\Users\admin\Documents\WinLocker.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\users\admin\documents\winlocker.exe
c:\windows\system32\ntdll.dll
2908"C:\Windows\explorer.exe" C:\Windows\explorer.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.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\gdi32.dll
c:\windows\system32\user32.dll
3544TASKKILL /F /FI "Imagename ne WinLocker.exe" /FI "USERNAME eq adminC:\Windows\System32\taskkill.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Terminates Processes
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\taskkill.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\version.dll
c:\windows\system32\user32.dll
3960"C:\Users\admin\Documents\upx.exe" WinLocker.exeC:\Users\admin\Documents\upx.exe
Winlocker builder by.exe
User:
admin
Company:
The UPX Team https://upx.github.io
Integrity Level:
MEDIUM
Description:
UPX executable packer
Exit code:
0
Version:
3.96 (2020-01-23)
Modules
Images
c:\users\admin\documents\upx.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.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
Total events
10 711
Read events
10 572
Write events
126
Delete events
13

Modification events

(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:NodeSlots
Value:
0202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:MRUListEx
Value:
02000000070000000100000006000000000000000B0000000C0000000D0000000A0000000900000008000000030000000500000004000000FFFFFFFF
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\Bags\50\ComDlgLegacy
Operation:writeName:TV_FolderType
Value:
{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\Bags\50\ComDlgLegacy
Operation:writeName:TV_TopViewID
Value:
{82BA0782-5B7A-4569-B5D7-EC83085F08CC}
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\Bags\50\ComDlgLegacy
Operation:writeName:TV_TopViewVersion
Value:
0
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32\CIDSizeMRU
Operation:writeName:4
Value:
570069006E006C006F0063006B006500720020006200750069006C006400650072002000620079002E0065007800650000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006601000066000000990300000202000000000000000000000000000000000000000000000000000000000000000000000100000000000000
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32\CIDSizeMRU
Operation:delete valueName:4
Value:
Winlocker builder by.exe
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32\CIDSizeMRU
Operation:writeName:4
Value:
570069006E006C006F0063006B006500720020006200750069006C006400650072002000620079002E0065007800650000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800200006801000080020000680100006601000066000000990300000202000000000000000000000000000000000000000000000000000000000000000000000100000000000000
(PID) Process:(2340) Winlocker builder by.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32\CIDSizeMRU
Operation:writeName:MRUListEx
Value:
0400000000000000020000000300000001000000FFFFFFFF
Executable files
22
Suspicious files
0
Text files
3
Unknown types
0

Dropped files

PID
Process
Filename
Type
1368WinLocker.exe\Device\Harddisk0\DR0 —
MD5:—
SHA256:—
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX7107.tmpexecutable
MD5:C050309936AD879AE66AA1C6FFC16506
SHA256:E1A75A58C1BBDB0CAD25805E34AE989C8BAD2E557EDFC1DB7B2D14EC741C7D20
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX702A.tmpexecutable
MD5:D468488C28EC2D71A15DCD57BA2ACD50
SHA256:2C2EAA092C04BFE74F37EC5BF41E2DDBD87F97A0D44B3501CBB9A173F5309584
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX71A6.tmpexecutable
MD5:358892808A12189C3F27440F6937F8A9
SHA256:40BF4D259314915DAE5B274E536396C3927C082EF42C7B92177B54488CF29565
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX7079.tmpexecutable
MD5:28097BD71CB12F96D23A1B2994AA9C42
SHA256:3D3C53B4530B2DA570C2E684A4948EDD738BBF0C277D55C44A7E24A4956E7CA5
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX7234.tmpexecutable
MD5:7244A2CF60E149FFAA0D48BAB05AE4DF
SHA256:37225AF6CF56D2C96C65373BCA18257F910D45D2084C66A714E67263AFC43970
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX70C8.tmpexecutable
MD5:D40E6E0CFDC9E818FCF3557C098E640C
SHA256:FB3E89CA73611CCE57BAFEF1994E05C5429E49987049AB8A85D118B4785F827A
2340Winlocker builder by.exeC:\Users\admin\Documents\RCX7283.tmpexecutable
MD5:7DD1B32F99786E0570641621CF2764BF
SHA256:737C88AECD73D6ED4AB4EF0E024DABE4D3B0D71B630B571817D43AD69578A4CE
1368WinLocker.exeC:\Users\admin\Documents\Time.initext
MD5:EB13B7EAF7F30D348E471F0907B31AAC
SHA256:94BA214735774FB4E68BE906C3E181D29C71DBBCD10540E70BA7021FCF5EA3AA
3960upx.exeC:\Users\admin\Documents\WinLocker.exeexecutable
MD5:47B12A0D917C73B5565D79AD4561D383
SHA256:0B6A1964B620234ACA823FCEB79E4D35D8E2D222F2BE9F63A864CAF618BBF0F0
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
0
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
4
System
192.168.100.255:137
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
—
—
224.0.0.252:5355
—
—
—
unknown
1080
svchost.exe
224.0.0.252:5355
—
—
—
unknown

DNS requests

No data

Threats

No threats detected
No debug info
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Reports
Winlocker builder by.exe