File name:

STWWebViewer.exe

Full analysis: https://app.any.run/tasks/cfb04ff2-2125-4be8-bb17-6ef8238cdc1c
Verdict: Malicious activity
Analysis date: June 11, 2020, 14:39:57
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
installer
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5:

3676B2BF0DA2ECB0C8360A8108E1C70A

SHA1:

A1C8D2E9DDDE1D51FDEBB3DCCC01549245B0D9B7

SHA256:

6081F6094D81F5E00C0BA8C183CD84EC245389E4637F9CBDDE2802C29A478261

SSDEEP:

98304:HUAT+k21E2ws85GGxqLc0tThi6386kd1Z9KCXP67mK2Yfo6B5cvDLbKmmOa///DP:02mdFGt4bThi64d/9KK7K2YBs/0rwZ0r

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

    • Loads dropped or rewritten executable

      • STWWebViewer.exe (PID: 3156)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • STWWebViewer.exe (PID: 3156)
      • uninst.exe (PID: 688)

    • Creates files in the Windows directory

      • STWWebViewer.exe (PID: 3156)

    • Creates a software uninstall entry

      • STWWebViewer.exe (PID: 3156)

    • Removes files from Windows directory

      • Au_.exe (PID: 2744)

  • INFO

    • Manual execution by user

      • explorer.exe (PID: 2756)
      • uninst.exe (PID: 1200)
      • uninst.exe (PID: 688)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | NSIS - Nullsoft Scriptable Install System (94.8)
.exe | Win32 Executable MS Visual C++ (generic) (3.4)
.dll | Win32 Dynamic Link Library (generic) (0.7)
.exe | Win32 Executable (generic) (0.5)
.exe | Generic Win/DOS Executable (0.2)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2009:12:05 23:50:52+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 24064
InitializedDataSize: 164864
UninitializedDataSize: 1024
EntryPoint: 0x30fa
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 05-Dec-2009 22:50:52
Detected languages:
  • English - United States

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: 0x000000D8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 05-Dec-2009 22:50:52
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_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00005C4C
0x00005E00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.44011
.rdata
0x00007000
0x0000129C
0x00001400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.04684
.data
0x00009000
0x00025C58
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.801
.ndata
0x0002F000
0x00009000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rsrc
0x00038000
0x000040A0
0x00004200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.96223

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.21482
958
UNKNOWN
English - United States
RT_MANIFEST
2
5.9993
3752
UNKNOWN
English - United States
RT_ICON
3
6.24459
2216
UNKNOWN
English - United States
RT_ICON
4
5.01502
1384
UNKNOWN
English - United States
RT_ICON
5
6.16057
1128
UNKNOWN
English - United States
RT_ICON
6
3.34146
744
UNKNOWN
English - United States
RT_ICON
7
3.04232
296
UNKNOWN
English - United States
RT_ICON
103
2.6691
104
UNKNOWN
English - United States
RT_GROUP_ICON
105
2.73893
514
UNKNOWN
English - United States
RT_DIALOG
106
2.91148
248
UNKNOWN
English - United States
RT_DIALOG

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll
VERSION.dll
ole32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
46
Monitored processes
6
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start stwwebviewer.exe explorer.exe no specs uninst.exe no specs uninst.exe au_.exe no specs stwwebviewer.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
688"C:\SamsungTechwin\iPolis\uninst.exe" C:\SamsungTechwin\iPolis\uninst.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\samsungtechwin\ipolis\uninst.exe
c:\systemroot\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\shell32.dll
1200"C:\SamsungTechwin\iPolis\uninst.exe" C:\SamsungTechwin\iPolis\uninst.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\samsungtechwin\ipolis\uninst.exe
c:\systemroot\system32\ntdll.dll
2428"C:\Users\admin\AppData\Local\Temp\STWWebViewer.exe" C:\Users\admin\AppData\Local\Temp\STWWebViewer.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\users\admin\appdata\local\temp\stwwebviewer.exe
c:\systemroot\system32\ntdll.dll
2744"C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\SamsungTechwin\iPolis\C:\Users\admin\AppData\Local\Temp\~nsu.tmp\Au_.exe—uninst.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\~nsu.tmp\au_.exe
c:\systemroot\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\shell32.dll
2756"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:\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\gdi32.dll
c:\windows\system32\user32.dll
3156"C:\Users\admin\AppData\Local\Temp\STWWebViewer.exe" C:\Users\admin\AppData\Local\Temp\STWWebViewer.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\stwwebviewer.exe
c:\systemroot\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\msvcrt.dll
c:\windows\system32\usp10.dll
c:\windows\system32\shell32.dll
Total events
792
Read events
718
Write events
41
Delete events
33

Modification events

(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\STWWebViewer for Windows
Operation:writeName:DisplayName
Value:
STWWebViewer for Windows 1.0.170
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\STWWebViewer for Windows
Operation:writeName:UninstallString
Value:
C:\SamsungTechwin\iPolis\uninst.exe
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\STWWebViewer for Windows
Operation:writeName:DisplayVersion
Value:
1.0.170
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\STWWebViewer for Windows
Operation:writeName:URLInfoAbout
Value:
http://www.samsungcctv.com
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\STWWebViewer for Windows
Operation:writeName:Publisher
Value:
Samsung Techwin
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{3E35B64A-0FA8-4FDC-8196-7269B9C40002}\1.0
Operation:writeName:
Value:
webviewer_activexplugin_lib ActiveX Control module
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{3E35B64A-0FA8-4FDC-8196-7269B9C40002}\1.0\FLAGS
Operation:writeName:
Value:
2
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{3E35B64A-0FA8-4FDC-8196-7269B9C40002}\1.0\0\win32
Operation:writeName:
Value:
C:\SamsungTechwin\iPolis\webviewer_activexplugin_lib.ocx
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{3E35B64A-0FA8-4FDC-8196-7269B9C40002}\1.0\HELPDIR
Operation:writeName:
Value:
(PID) Process:(3156) STWWebViewer.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1CD6C32A-723D-4939-8B66-683B00BB53DA}
Operation:writeName:
Value:
_Dwebviewer_activexplugin_lib
Executable files
20
Suspicious files
0
Text files
26
Unknown types
0

Dropped files

PID
Process
Filename
Type
3156STWWebViewer.exeC:\Users\admin\AppData\Local\Temp\nsnF3D0.tmp\ioSpecial.initext
MD5:—
SHA256:—
3156STWWebViewer.exeC:\Windows\system32\H264DecoderDLL_pureC.dllexecutable
MD5:—
SHA256:—
3156STWWebViewer.exeC:\SamsungTechwin\iPolis\webviewer_activexplugin_lib.ocxexecutable
MD5:—
SHA256:—
3156STWWebViewer.exeC:\Windows\system32\libHEVCDecoder_c.dllexecutable
MD5:—
SHA256:—
3156STWWebViewer.exeC:\Windows\system32\H264DecoderDLL_asm_sse3.dllexecutable
MD5:—
SHA256:—
3156STWWebViewer.exeC:\Windows\system32\H264DecoderDLL_asm_sse4.dllexecutable
MD5:—
SHA256:—
3156STWWebViewer.exeC:\Users\admin\AppData\Local\Temp\nsnF3D0.tmp\KillProcDLL.dllexecutable
MD5:83142EAC84475F4CA889C73F10D9C179
SHA256:AE2F1658656E554F37E6EAC896475A3862841A18FFC6FAD2754E2D3525770729
3156STWWebViewer.exeC:\Users\admin\AppData\Local\Temp\nsnF3D0.tmp\time.dllexecutable
MD5:8676721A04A174016E5D3F3C554302F1
SHA256:700CF2C2AE144AD688A33D2DF320B415425749E1EE87B9AE61EDCB42650A1390
3156STWWebViewer.exeC:\Users\admin\AppData\Local\Temp\nsnF3D0.tmp\InstallOptions.dllexecutable
MD5:325B008AEC81E5AAA57096F05D4212B5
SHA256:C9CD5C9609E70005926AE5171726A4142FFBCCCC771D307EFCD195DAFC1E6B4B
3156STWWebViewer.exeC:\SamsungTechwin\iPolis\npwViewer_lib.dllexecutable
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
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

No data

DNS requests

No data

Threats

No threats detected
No debug info
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Reports
STWWebViewer.exe