File name:

kovter.exe

Full analysis: https://app.any.run/tasks/e739d8a3-8e02-4aef-89cd-940022244edd
Verdict: Malicious activity
Analysis date: January 10, 2020, 05:34:09
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:

15AF6227D39CA3F9D1DCD8566EFB0057

SHA1:

C8C3BF9ED944B614AE4B3E747E69E84026FB4039

SHA256:

40050153DCEEC2C8FBB1912F8EEABE449D1E265F0C8198008BE8B34E5403E731

SSDEEP:

6144:wcIU9Cj+hfg3MXbQ83J3U728WJQHPn4b2wS12f0ffJ0n/dQFvT:w3GCjgfoMrQ83JGdH/4bz0Xb9

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

    • Registers / Runs the DLL via REGSVR32.EXE

      • powershell.exe (PID: 3408)
      • regsvr32.exe (PID: 2092)

    • Executes PowerShell scripts

      • mshta.exe (PID: 1768)

    • Changes internet zones settings

      • regsvr32.exe (PID: 2092)

    • Changes the autorun value in the registry

      • regsvr32.exe (PID: 2092)

  • SUSPICIOUS

    • Creates files in the user directory

      • powershell.exe (PID: 3408)

    • Executed via WMI

      • mshta.exe (PID: 1768)

    • Application launched itself

      • regsvr32.exe (PID: 2092)

    • Modifies the open verb of a shell class

      • regsvr32.exe (PID: 2092)

  • INFO

    • Reads internet explorer settings

      • mshta.exe (PID: 1768)
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) (67.3)
.dll | Win32 Dynamic Link Library (generic) (14.1)
.exe | Win32 Executable (generic) (9.7)
.exe | Generic Win/DOS Executable (4.3)
.exe | DOS Executable Generic (4.3)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2003:10:31 04:23:33+01:00
PEType: PE32
LinkerVersion: 2.23
CodeSize: 77824
InitializedDataSize: 370176
UninitializedDataSize: 246784
EntryPoint: 0x3dbb
OSVersion: 4
ImageVersion: 1
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 2.5.314.0
ProductVersionNumber: 2.5.0.0
FileFlagsMask: 0x0017
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Dynamic link library
FileSubtype: -
LanguageCode: Polish
CharacterSet: Windows, Latin2 (Eastern European)
CompanyName: Tracker Software Products (Canada) Ltd.
FileVersion: 2.5.0314.0000
LegalCopyright: Copyright (C) 2001-2015 by Tracker Software Products (Canada) Ltd.
LegalTrademarks: Tracker Software Products (Canada) Ltd.
ProductVersion: 2.5
SpecialBuild: -
PrivateBuild: -
ProductName: PDF-XChange Viewer
Comments: PDF-XChange Viewer
FileDescription: PDF-XChange Viewer
InternalName: PDF-XChange Viewer
OriginalFileName: PDFXCview.exe

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 31-Oct-2003 03:23:33
Detected languages:
  • Chinese - Hong Kong SAR
  • Polish - Poland
CompanyName: Tracker Software Products (Canada) Ltd.
FileVersion: 2.5.0314.0000
LegalCopyright: Copyright (C) 2001-2015 by Tracker Software Products (Canada) Ltd.
LegalTrademarks: Tracker Software Products (Canada) Ltd.
ProductVersion: 2.5
SpecialBuild: -
PrivateBuild: -
ProductName: PDF-XChange Viewer
Comments: PDF-XChange Viewer
FileDescription: PDF-XChange Viewer
InternalName: PDF-XChange Viewer
OriginalFilename: PDFXCview.exe

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: 8
Time date stamp: 31-Oct-2003 03:23:33
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_BYTES_REVERSED_LO
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00013000
0x00012A00
IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.26344
.data
0x00014000
0x00004730
0x00004800
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.9608
.rdata
0x00019000
0x0003C3EC
0x0003C400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.95631
.bss
0x00056000
0x00004000
0x00000000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.idata
0x0005A000
0x000027A4
0x00002800
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.6323
.CRT
0x0005D000
0x00000300
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
1.51123
.tls
0x0005E000
0x00000020
0x00000200
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
2.32022
.rsrc
0x0005F000
0x00012BE4
0x00012C00
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
6.29276

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.12107
796
UNKNOWN
Polish - Poland
RT_MANIFEST
2
2.6442
308
UNKNOWN
Polish - Poland
RT_CURSOR
3
2.64245
308
UNKNOWN
Polish - Poland
RT_CURSOR
4
2.62052
308
UNKNOWN
Polish - Poland
RT_CURSOR
5
2.59177
308
UNKNOWN
Polish - Poland
RT_CURSOR
6
2.50257
308
UNKNOWN
Polish - Poland
RT_CURSOR
7
2.86964
308
UNKNOWN
Polish - Poland
RT_CURSOR
8
2.41635
308
UNKNOWN
Polish - Poland
RT_CURSOR
9
2.37789
84
UNKNOWN
Polish - Poland
RT_STRING
36
6.57319
2216
UNKNOWN
Polish - Poland
RT_ICON

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
OLEAUT32.dll
SHELL32.dll
USER32.dll
VERSION.dll
WININET.dll
WINMM.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
39
Monitored processes
5
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start kovter.exe no specs mshta.exe no specs powershell.exe no specs regsvr32.exe regsvr32.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
496"C:\Windows\system32\regsvr32.exe"C:\Windows\system32\regsvr32.exe—regsvr32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft(C) Register Server
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\regsvr32.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\advapi32.dll
1768"C:\Windows\system32\mshta.exe" javascript:qkT2QZP2F="n41q";hZ2=new%20ActiveXObject("WScript.Shell");AoOvz2="3J";TnUl78=hZ2.RegRead("HKCU\\software\\opgbOdeRv\\xoLiktK6q");HQ6xvItL="oLa";eval(TnUl78);GbrU1MDD="WmSEDbb";C:\Windows\system32\mshta.exe—wmiprvse.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft (R) HTML Application host
Exit code:
0
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\mshta.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\mshtml.dll
c:\windows\system32\psapi.dll
1940"C:\Users\admin\AppData\Local\Temp\kovter.exe" C:\Users\admin\AppData\Local\Temp\kovter.exe—explorer.exe
User:
admin
Company:
Tracker Software Products (Canada) Ltd.
Integrity Level:
MEDIUM
Description:
PDF-XChange Viewer
Exit code:
0
Version:
2.5.0314.0000
Modules
Images
c:\users\admin\appdata\local\temp\kovter.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
2092regsvr32.exeC:\Windows\system32\regsvr32.exe
powershell.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft(C) Register Server
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\regsvr32.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\advapi32.dll
3408"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" iex $env:uodvkjzcC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe—mshta.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows PowerShell
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\windowspowershell\v1.0\powershell.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\atl.dll
c:\windows\system32\user32.dll
Total events
352
Read events
274
Write events
77
Delete events
1

Modification events

(PID) Process:(1768) mshta.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(1768) mshta.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(3408) powershell.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
Operation:writeName:1206
Value:
0
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
Operation:writeName:2300
Value:
0
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
Operation:writeName:1809
Value:
3
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
Operation:writeName:1206
Value:
0
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
Operation:writeName:2300
Value:
0
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
Operation:writeName:1809
Value:
3
(PID) Process:(2092) regsvr32.exeKey:HKEY_CURRENT_USER\Software\akugfthj
Operation:writeName:yvecdl
Value:
IjAVipZsAwGamA==
Executable files
0
Suspicious files
3
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
3408powershell.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\OG1FD22HMRAN3X513IFZ.temp —
MD5:—
SHA256:—
3408powershell.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms~RF39b9a6.TMPbinary
MD5:—
SHA256:—
3408powershell.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-msbinary
MD5:—
SHA256:—
2092regsvr32.exeC:\Users\admin\AppData\Local\8d97a\d7a27.2a8af6binary
MD5:—
SHA256:—
2092regsvr32.exeC:\Users\admin\AppData\Local\8d97a\832a3.battext
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
12
DNS requests
0
Threats
6

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
2092
regsvr32.exe
215.254.14.8:80
—
—
US
unknown
2092
regsvr32.exe
118.231.20.158:443
—
Far EastTone Telecommunication Co., Ltd.
TW
unknown
2092
regsvr32.exe
59.164.200.114:443
—
Tata Communications
IN
unknown
2092
regsvr32.exe
42.85.64.70:80
—
CHINA UNICOM China169 Backbone
CN
unknown
2092
regsvr32.exe
63.150.227.125:443
—
JOHNSON COUNTY KANSAS
US
suspicious
2092
regsvr32.exe
155.163.135.5:443
—
AT&T Mobility LLC
US
suspicious
2092
regsvr32.exe
203.163.218.10:443
—
—
TW
suspicious
2092
regsvr32.exe
181.218.239.251:80
—
—
BR
unknown
2092
regsvr32.exe
100.146.165.163:80
—
T-Mobile USA, Inc.
US
unknown
2092
regsvr32.exe
129.159.232.13:80
—
Oracle Corporation
US
unknown

DNS requests

No data

Threats

PID
Process
Class
Message
2092
regsvr32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore/NetWire/Kovter
2092
regsvr32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore/NetWire/Kovter
2092
regsvr32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore/NetWire/Kovter
2092
regsvr32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore/NetWire/Kovter
2092
regsvr32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore/NetWire/Kovter
2092
regsvr32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore/NetWire/Kovter
No debug info
Interactive malware hunting service ANY.RUN
© 2017-2025 ANY.RUN ALL RIGHTS RESERVED
ANY.RUN
Reports
kovter.exe