File name:

winlogon.exe

Full analysis: https://app.any.run/tasks/d761e088-9de4-4a68-9d9f-0e2b6925b021
Verdict: Malicious activity
Analysis date: October 26, 2021, 00:09:44
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

0D9607205A552FFE78CC6C30B234F776

SHA1:

6CA00928C9C057D73384BDF3FCD07470998A3874

SHA256:

3B55F30BFA5A319D7A32282982B41CFD08A731AE4AAC179B07C5D218C023F1D9

SSDEEP:

12288:N+cM8MQoaCtkzmKCNa2EdmrlTT6zncVUJ7vn:kcJoRtWmK92pTT6DN

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

    • Starts Visual C# compiler

      • winlogon.exe (PID: 3556)
      • winlogon.exe (PID: 2548)
    • Writes to a start menu file

      • winlogon.exe (PID: 3556)
      • winlogon.exe (PID: 2548)
    • Changes the autorun value in the registry

      • winlogon.exe (PID: 3556)
      • winlogon.exe (PID: 2548)
    • Uses Task Scheduler to autorun other applications

      • cmd.exe (PID: 2900)
    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 2976)
      • wbengine.exe (PID: 2456)
    • Drops executable file immediately after starts

      • csc.exe (PID: 2068)
      • winlogon.exe (PID: 2548)
      • csc.exe (PID: 2076)
    • Deletes shadow copies

      • cmd.exe (PID: 2876)
      • cmd.exe (PID: 2720)
      • cmd.exe (PID: 1940)
    • Starts BCDEDIT.EXE to disable recovery

      • cmd.exe (PID: 1108)
    • Turns off the firewall via NETSH.EXE

      • cmd.exe (PID: 3088)
    • Application was injected by another process

      • svchost.exe (PID: 876)
      • svchost.exe (PID: 1096)
      • SearchIndexer.exe (PID: 2276)
    • Runs injected code in another process

      • wbadmin.exe (PID: 2172)
    • Disables Windows Defender

      • winlogon.exe (PID: 2548)
  • SUSPICIOUS

    • Checks supported languages

      • cmd.exe (PID: 2900)
      • winlogon.exe (PID: 3556)
      • csc.exe (PID: 2068)
      • cvtres.exe (PID: 1876)
      • winlogon.exe (PID: 2548)
      • csc.exe (PID: 2076)
      • cvtres.exe (PID: 3420)
      • cmd.exe (PID: 2876)
      • cmd.exe (PID: 2768)
      • cmd.exe (PID: 2720)
      • cmd.exe (PID: 2216)
      • WMIC.exe (PID: 2272)
      • cmd.exe (PID: 1940)
      • cmd.exe (PID: 3088)
      • cmd.exe (PID: 456)
      • cmd.exe (PID: 1108)
    • Starts CMD.EXE for commands execution

      • winlogon.exe (PID: 3556)
      • winlogon.exe (PID: 2548)
    • Drops a file with too old compile date

      • winlogon.exe (PID: 3556)
      • winlogon.exe (PID: 2548)
    • Creates files in the user directory

      • winlogon.exe (PID: 3556)
    • Executable content was dropped or overwritten

      • winlogon.exe (PID: 3556)
      • csc.exe (PID: 2068)
      • winlogon.exe (PID: 2548)
      • csc.exe (PID: 2076)
    • Reads the computer name

      • winlogon.exe (PID: 3556)
      • winlogon.exe (PID: 2548)
      • WMIC.exe (PID: 2272)
    • Creates files in the program directory

      • winlogon.exe (PID: 3556)
      • csc.exe (PID: 2068)
      • csc.exe (PID: 2076)
      • winlogon.exe (PID: 2548)
      • SearchIndexer.exe (PID: 2276)
    • Creates files in the Windows directory

      • svchost.exe (PID: 876)
      • winlogon.exe (PID: 2548)
      • wbadmin.exe (PID: 2172)
    • Drops a file with a compile date too recent

      • csc.exe (PID: 2068)
      • csc.exe (PID: 2076)
      • winlogon.exe (PID: 2548)
    • Application launched itself

      • winlogon.exe (PID: 3556)
    • Uses NETSH.EXE for network configuration

      • cmd.exe (PID: 3088)
      • cmd.exe (PID: 456)
    • Changes default file association

      • winlogon.exe (PID: 2548)
    • Reads Environment values

      • netsh.exe (PID: 820)
      • netsh.exe (PID: 1356)
    • Executed as Windows Service

      • vssvc.exe (PID: 1248)
      • wbengine.exe (PID: 2456)
      • vds.exe (PID: 3920)
    • Executed via COM

      • vdsldr.exe (PID: 1872)
      • DllHost.exe (PID: 3760)
    • Writes to a desktop.ini file (may be used to cloak folders)

      • winlogon.exe (PID: 2548)
  • INFO

    • Checks supported languages

      • schtasks.exe (PID: 2976)
      • svchost.exe (PID: 876)
      • vssadmin.exe (PID: 1844)
      • bcdedit.exe (PID: 3524)
      • netsh.exe (PID: 820)
      • bcdedit.exe (PID: 656)
      • wbadmin.exe (PID: 1408)
      • netsh.exe (PID: 1356)
      • wbadmin.exe (PID: 2172)
      • DllHost.exe (PID: 3760)
      • wbengine.exe (PID: 2456)
      • vds.exe (PID: 3920)
      • vssvc.exe (PID: 1248)
      • vdsldr.exe (PID: 1872)
    • Reads the computer name

      • schtasks.exe (PID: 2976)
      • vssadmin.exe (PID: 1844)
      • wbadmin.exe (PID: 2172)
      • wbadmin.exe (PID: 1408)
      • netsh.exe (PID: 820)
      • netsh.exe (PID: 1356)
      • wbengine.exe (PID: 2456)
      • vdsldr.exe (PID: 1872)
      • vds.exe (PID: 3920)
      • vssvc.exe (PID: 1248)
      • DllHost.exe (PID: 3760)
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) (64.5)
.dll | Win32 Dynamic Link Library (generic) (13.6)
.exe | Win32 Executable (generic) (9.3)
.exe | Win16/32 Executable Delphi generic (4.2)
.exe | Generic Win/DOS Executable (4.1)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2041:02:25 03:01:34+01:00
PEType: PE32
LinkerVersion: 48
CodeSize: 321024
InitializedDataSize: 186368
UninitializedDataSize: -
EntryPoint: 0x8608a
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 1.0.0.0
ProductVersionNumber: 1.0.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: Microsoft
FileDescription: svchost
FileVersion: 1.0.0.0
InternalName: svchost.exe
LegalCopyright: Copyright © 2021
LegalTrademarks: -
OriginalFileName: svchost.exe
ProductName: svchost
ProductVersion: 1.0.0.0
AssemblyVersion: 1.2.0.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 19-Jan-1905 19:33:18
Comments: -
CompanyName: Microsoft
FileDescription: svchost
FileVersion: 1.0.0.0
InternalName: svchost.exe
LegalCopyright: Copyright © 2021
LegalTrademarks: -
OriginalFilename: svchost.exe
ProductName: svchost
ProductVersion: 1.0.0.0
Assembly Version: 1.2.0.0

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: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 6
Time date stamp: 19-Jan-1905 19:33:18
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_LARGE_ADDRESS_AWARE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
*\x13?\x0d?\x17?\x02$f\x01
0x00002000
0x00016624
0x00016800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
6.51749
T&d\x1b{/.\x05$f\x01
0x0001A000
0x00016624
0x00016800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.99761
.text
0x00032000
0x0004E300
0x0004E400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.26152
.rsrc
0x00082000
0x000005A8
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.07478
.reloc
0x00084000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191
.RVA
0x00086000
0x000000DB
0x00000200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
0.769849

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
82
Monitored processes
32
Malicious processes
6
Suspicious processes
3

Behavior graph

Click at the process to see the details
drop and start start inject inject inject winlogon.exe cmd.exe schtasks.exe no specs csc.exe cvtres.exe no specs winlogon.exe csc.exe cvtres.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs vssadmin.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs wbadmin.exe no specs wmic.exe no specs cmd.exe no specs bcdedit.exe no specs cmd.exe no specs wbadmin.exe no specs bcdedit.exe no specs netsh.exe no specs svchost.exe svchost.exe vssvc.exe no specs searchindexer.exe netsh.exe no specs DllHost.exe no specs wbengine.exe no specs vdsldr.exe no specs vds.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
456"C:\Windows\System32\cmd.exe" /C netsh firewall set opmode mode=disableC:\Windows\System32\cmd.exewinlogon.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
656bcdedit /set {default} recoveryenabled noC:\Windows\system32\bcdedit.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Boot Configuration Data Editor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\bcdedit.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
820netsh advfirewall set currentprofile state offC:\Windows\system32\netsh.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Network Command Shell
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\netsh.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\credui.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
876C:\Windows\system32\svchost.exe -k netsvcsC:\Windows\system32\svchost.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
1096C:\Windows\system32\svchost.exe -k NetworkServiceC:\Windows\system32\svchost.exe
services.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
1108"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} recoveryenabled noC:\Windows\System32\cmd.exewinlogon.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\ntdll.dll
c:\windows\system32\cmd.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msctf.dll
c:\windows\system32\imm32.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\bcdedit.exe
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
1248C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exeservices.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:\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\lpk.dll
1356netsh firewall set opmode mode=disableC:\Windows\system32\netsh.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Network Command Shell
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\netsh.exe
c:\windows\system32\kernelbase.dll
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\credui.dll
c:\windows\system32\user32.dll
1408wbadmin delete catalog -quietC:\Windows\system32\wbadmin.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Command Line Interface for Microsoft� BLB Backup
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\wbadmin.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\ole32.dll
c:\windows\system32\gdi32.dll
1844vssadmin delete shadows /all /quietC:\Windows\system32\vssadmin.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Command Line Interface for Microsoft� Volume Shadow Copy Service
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\vssadmin.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\atl.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
Total events
5 260
Read events
5 036
Write events
224
Delete events
0

Modification events

(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
460000003B010000090000000000000000000000000000000400000000000000C0E333BBEAB1D3010000000000000000000000000100000002000000C0A80164000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(3556) winlogon.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{362E934C-743B-4588-8259-D2482DB771A8}
Operation:writeName:WpadDecisionReason
Value:
1
Executable files
7
Suspicious files
1 013
Text files
238
Unknown types
35

Dropped files

PID
Process
Filename
Type
1876cvtres.exeC:\Users\admin\AppData\Local\Temp\RESD441.tmpo
MD5:
SHA256:
3556winlogon.exeC:\Users\admin\AppData\Local\Temp\ryh4guri.cmdlinetext
MD5:
SHA256:
876svchost.exeC:\Windows\System32\Tasks\Lokixml
MD5:
SHA256:
876svchost.exeC:\Windows\appcompat\programs\RecentFileCache.bcftxt
MD5:
SHA256:
2068csc.exeC:\ProgramData\CSCD8CE1FF589EA4271B1D657AD4D95540.TMPres
MD5:
SHA256:
3556winlogon.exeC:\ProgramData\info.Lokihtml
MD5:
SHA256:
2068csc.exeC:\ProgramData\n3uegcx4.exeexecutable
MD5:
SHA256:
2068csc.exeC:\Users\admin\AppData\Local\Temp\ryh4guri.outtext
MD5:
SHA256:
3556winlogon.exeC:\ProgramData\winlogon.exeexecutable
MD5:0D9607205A552FFE78CC6C30B234F776
SHA256:3B55F30BFA5A319D7A32282982B41CFD08A731AE4AAC179B07C5D218C023F1D9
3556winlogon.exeC:\Users\admin\AppData\Local\Temp\zqpn1wjz.icoimage
MD5:DBC49B5F7714255217080C2E81F05A99
SHA256:6D2F1F6164CBD331B9DC43B37948372E21B2EE45407AA99E199693835CDED09C
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
13
DNS requests
1
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3556
winlogon.exe
POST
200
91.223.82.6:80
http://loki-locker.one/index.php
NL
text
600 b
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
192.168.100.1:445
unknown
192.168.100.1:139
unknown
3556
winlogon.exe
91.223.82.6:80
loki-locker.one
Iws Networks LLC
NL
malicious
192.168.100.2:139
whitelisted
192.168.100.2:445
whitelisted

DNS requests

Domain
IP
Reputation
loki-locker.one
  • 91.223.82.6
malicious

Threats

No threats detected
No debug info