File name:

pdfixers.exe

Full analysis: https://app.any.run/tasks/32a77d66-559b-4354-9fce-13f12352bada
Verdict: Malicious activity
Threats:

Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns.

Analysis date: August 08, 2024, 20:54:09
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
stealer
Indicators:
MIME: application/x-dosexec
File info: PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
MD5:

B4440EEA7367C3FB04A89225DF4022A6

SHA1:

5A6C01F821F10F6ED1F1283ECBA36C5BACFB5838

SHA256:

A024A18E27707738ADCD7B5A740C5A93534B4B8C9D3B947F6D85740AF19D17D0

SSDEEP:

98304:NKaPGf3Lx51clR43g0ZtKC5/TF4i9bYvQCPjhPXq2fZWwZmchG6QjvOr/av7Vx6U:Lm3qrzPw0jtrQp

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

    • Scans artifacts that could help determine the target

      • pdfixers.exe (PID: 6440)
    • Actions looks like stealing of personal data

      • SumatraPDF-3.5.2-64.exe (PID: 6408)
  • SUSPICIOUS

    • Drops the executable file immediately after the start

      • pdfixers.exe (PID: 6440)
    • Reads security settings of Internet Explorer

      • pdfixers.exe (PID: 6440)
    • Reads Microsoft Outlook installation path

      • pdfixers.exe (PID: 6440)
    • Reads Internet Explorer settings

      • pdfixers.exe (PID: 6440)
    • Checks Windows Trust Settings

      • pdfixers.exe (PID: 6440)
    • Creates a software uninstall entry

      • pdfixers.exe (PID: 6440)
    • Executable content was dropped or overwritten

      • pdfixers.exe (PID: 6440)
    • Searches for installed software

      • pdfixers.exe (PID: 6440)
    • Reads the date of Windows installation

      • pdfixers.exe (PID: 6440)
  • INFO

    • Reads the computer name

      • pdfixers.exe (PID: 6440)
      • SumatraPDF-3.5.2-64.exe (PID: 6408)
    • Reads the machine GUID from the registry

      • pdfixers.exe (PID: 6440)
    • Checks supported languages

      • pdfixers.exe (PID: 6440)
      • SumatraPDF-3.5.2-64.exe (PID: 6408)
    • Process checks Internet Explorer phishing filters

      • pdfixers.exe (PID: 6440)
    • Checks proxy server information

      • pdfixers.exe (PID: 6440)
    • Reads the software policy settings

      • pdfixers.exe (PID: 6440)
    • Creates files or folders in the user directory

      • pdfixers.exe (PID: 6440)
      • SumatraPDF-3.5.2-64.exe (PID: 6408)
    • Process checks computer location settings

      • pdfixers.exe (PID: 6440)
    • Reads CPU info

      • SumatraPDF-3.5.2-64.exe (PID: 6408)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic Win/DOS Executable (50)
.exe | DOS Executable Generic (49.9)

EXIF

EXE

MachineType: AMD AMD64
TimeStamp: 2054:11:16 06:26:21+00:00
ImageFileCharacteristics: Executable, Large address aware
PEType: PE32+
LinkerVersion: 80
CodeSize: 8382976
InitializedDataSize: 112128
UninitializedDataSize: -
EntryPoint: 0x0000
OSVersion: 4
ImageVersion: -
SubsystemVersion: 6
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: -
FileDescription: Pdfixers
FileVersion: 1.0.0.0
InternalName: Pdfixers.exe
LegalCopyright: Copyright © 2023
LegalTrademarks: -
OriginalFileName: Pdfixers.exe
ProductName: Pdfixers
ProductVersion: 1.0.0.0
AssemblyVersion: 1.0.0.0
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
134
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start pdfixers.exe sumatrapdf-3.5.2-64.exe

Process information

PID
CMD
Path
Indicators
Parent process
6408"C:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-3.5.2-64.exe" C:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-3.5.2-64.exe
pdfixers.exe
User:
admin
Company:
Krzysztof Kowalczyk
Integrity Level:
MEDIUM
Description:
SumatraPDF
Version:
3.5.2
Modules
Images
c:\users\admin\appdata\roaming\sumatrapdf\sumatrapdf-3.5.2-64.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
6440"C:\Users\admin\AppData\Local\Temp\pdfixers.exe" C:\Users\admin\AppData\Local\Temp\pdfixers.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Pdfixers
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\pdfixers.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
Total events
5 534
Read events
5 521
Write events
13
Delete events
0

Modification events

(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SumatraPDFUninstall
Operation:writeName:DisplayName
Value:
SumatraPDF
(PID) Process:(6440) pdfixers.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SumatraPDFUninstall
Operation:writeName:UninstallString
Value:
cmd /c rmdir /s /q "C:\Users\admin\AppData\Roaming\SumatraPDF" & del "C:\Users\admin\Desktop\SumatraPDF.lnk" & reg delete HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\SumatraPDFUninstall /f
Executable files
1
Suspicious files
14
Text files
3
Unknown types
0

Dropped files

PID
Process
Filename
Type
6440pdfixers.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12binary
MD5:7FB5FA1534DCF77F2125B2403B30A0EE
SHA256:33A39E9EC2133230533A686EC43760026E014A3828C703707ACBC150FE40FD6F
6440pdfixers.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12binary
MD5:EE8C7D4329C1655E1759D415E99453ED
SHA256:263E4B200D4D16C120092B36E42CB84923ABCAF85127988C120CE87126AB4EF6
6440pdfixers.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8der
MD5:971C514F84BBA0785F80AA1C23EDFD79
SHA256:F157ED17FCAF8837FA82F8B69973848C9B10A02636848F995698212A08F31895
6440pdfixers.exeC:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\font[1].eoteot
MD5:C6B85601ADBF8C674B4B444DAD696A5D
SHA256:EC8671B432FF49E1E77F48692397E57ECFA584555AC664C932DCCEA0C9A16044
6440pdfixers.exeC:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF.zipcompressed
MD5:21B26AF0D4CE33D609915549F01A7705
SHA256:66CCB395C9184DCE6822DFBB9970C877383B3EAD6D9417B5106A844AAC512989
6440pdfixers.exeC:\Users\admin\Desktop\SumatraPDF.lnkbinary
MD5:487F7B033D02E3C42DCA0C6911F5A4D7
SHA256:2CEF271F3DD40EEDD68EF2592197CEF82D8F3305B5C7C6A3B38440DC466E806A
6440pdfixers.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\4FA45AE1010E09657982D8D28B3BD38E_BE32D9F1882B93E37445F58E05C44495der
MD5:12A47D9F54F30EB9C280225D71DE659B
SHA256:292932D253E50357C8734B6607C6F37A1C32FAE5D95A47759114B931F00F6DDB
6440pdfixers.exeC:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-3.5.2-64.exeexecutable
MD5:C02DC2CA96FE9841963883C0FE177399
SHA256:290E4AA7ED64C728138711C011E89AAB7AA48DBC1AE430371DC2BE4100B92BF0
6440pdfixers.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B3513D73A177A2707D910183759B389B_5CF45833F44BFC2995315451A3896ACAder
MD5:A03E5022373B95D46179B25AC9B7F460
SHA256:CD80A67F46435F0000D801DA9138919E7CA11DAF5EA3E8E64D1873259A8C2CD5
6440pdfixers.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\05DDC6AA91765AACACDB0A5F96DF8199binary
MD5:AA3EF05B760E47E8CFD955249F9DEAE0
SHA256:3F15B501E151200FBE12026CF192476ACFC73670CAE9FF9EFE8007A981B5D2AF
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
42
DNS requests
23
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
6440
pdfixers.exe
GET
200
142.250.186.67:80
http://c.pki.goog/r/gsr1.crl
unknown
whitelisted
6440
pdfixers.exe
GET
200
142.250.186.67:80
http://c.pki.goog/r/r4.crl
unknown
whitelisted
6440
pdfixers.exe
GET
200
142.250.186.67:80
http://c.pki.goog/r/r1.crl
unknown
whitelisted
6440
pdfixers.exe
GET
200
142.250.186.67:80
http://o.pki.goog/wr2/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBRTQtSEi8EX%2BbYUTXd8%2ByMxD3s1zQQU3hse7XkV1D43JMMhu%2Bw0OW1CsjACEQCjHbN8Q48ByBJsBZfEZOeO
unknown
whitelisted
6440
pdfixers.exe
GET
200
142.250.186.67:80
http://o.pki.goog/wr2/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBRTQtSEi8EX%2BbYUTXd8%2ByMxD3s1zQQU3hse7XkV1D43JMMhu%2Bw0OW1CsjACEQDAezvzBOn2FxIghPLaMkP6
unknown
whitelisted
5336
SearchApp.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
whitelisted
6996
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D
unknown
whitelisted
2204
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
7048
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D
unknown
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
840
svchost.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1060
RUXIMICS.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
2120
MoUsoCoreWorker.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:138
whitelisted
3888
svchost.exe
239.255.255.250:1900
whitelisted
6440
pdfixers.exe
104.21.11.17:443
pixel.pdfixers.com
CLOUDFLARENET
unknown
6440
pdfixers.exe
142.250.186.67:80
c.pki.goog
GOOGLE
US
whitelisted
6440
pdfixers.exe
142.250.184.234:443
fonts.googleapis.com
GOOGLE
US
whitelisted
6440
pdfixers.exe
142.250.181.227:443
fonts.gstatic.com
GOOGLE
US
whitelisted
4
System
192.168.100.255:137
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 4.231.128.59
  • 52.167.17.97
  • 51.124.78.146
  • 51.104.136.2
whitelisted
google.com
  • 142.250.184.206
whitelisted
pixel.pdfixers.com
  • 104.21.11.17
  • 172.67.147.142
unknown
c.pki.goog
  • 142.250.186.67
whitelisted
fonts.googleapis.com
  • 142.250.184.234
whitelisted
o.pki.goog
  • 142.250.186.67
whitelisted
fonts.gstatic.com
  • 142.250.181.227
whitelisted
www.bing.com
  • 2.23.209.141
  • 2.23.209.140
  • 2.23.209.185
  • 2.23.209.187
  • 2.23.209.182
  • 2.23.209.189
  • 2.23.209.130
  • 2.23.209.133
  • 2.23.209.186
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
login.live.com
  • 40.126.31.73
  • 20.190.159.71
  • 40.126.31.67
  • 20.190.159.73
  • 20.190.159.0
  • 20.190.159.68
  • 20.190.159.23
  • 20.190.159.4
whitelisted

Threats

No threats detected
No debug info