File name:

fax.exe

Full analysis: https://app.any.run/tasks/6c7c769a-32b0-45e4-9833-aaad7c329bb0
Verdict: Malicious activity
Analysis date: April 28, 2025, 10:38:08
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
upatre
evasion
ip-check
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections
MD5:

49A102718EF7301237D2E6E19107D0AE

SHA1:

478F8227840D00712E0F87F503594003AC709AF7

SHA256:

5A43324CC84C1482E20ECF8B8E1F21229B750FE5BF7A79700398023C4785BF8A

SSDEEP:

384:wu4GodQ0RS/NJ6RTYr4AKykg+VltLOo5BLQdw:wBdQ0SJGYr4MkgIBLQ2

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

    • UPATRE has been detected (SURICATA)

      • opticare.exe (PID: 6048)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • fax.exe (PID: 6068)

    • Starts itself from another location

      • fax.exe (PID: 6068)

    • Reads security settings of Internet Explorer

      • opticare.exe (PID: 6048)

    • Checks for external IP

      • svchost.exe (PID: 2196)
      • opticare.exe (PID: 6048)

    • There is functionality for capture public ip (YARA)

      • opticare.exe (PID: 6048)

    • Connects to unusual port

      • opticare.exe (PID: 6048)

  • INFO

    • Checks supported languages

      • fax.exe (PID: 6068)
      • opticare.exe (PID: 6048)

    • Reads the computer name

      • fax.exe (PID: 6068)
      • opticare.exe (PID: 6048)

    • Create files in a temporary directory

      • fax.exe (PID: 6068)

    • Checks proxy server information

      • opticare.exe (PID: 6048)

    • Creates files or folders in the user directory

      • opticare.exe (PID: 6048)
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) (67.4)
.dll | Win32 Dynamic Link Library (generic) (14.2)
.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: 2006:04:29 22:34:14+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 7.1
CodeSize: 5632
InitializedDataSize: 25088
UninitializedDataSize: -
EntryPoint: 0x10ae
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
130
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start fax.exe #UPATRE opticare.exe svchost.exe sppextcomobj.exe no specs slui.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2196C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\Windows\System32\svchost.exe
services.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
10.0.19041.1 (WinBuild.160101.0800)
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\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll
4652"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEventC:\Windows\System32\slui.exe—SppExtComObj.Exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows Activation Client
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.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\bcrypt.dll
c:\windows\system32\user32.dll
6048C:\Users\admin\AppData\Local\Temp\opticare.exeC:\Users\admin\AppData\Local\Temp\opticare.exe
fax.exe
User:
admin
Integrity Level:
MEDIUM
Modules
Images
c:\users\admin\appdata\local\temp\opticare.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll
6068"C:\Users\admin\AppData\Local\Temp\fax.exe" C:\Users\admin\AppData\Local\Temp\fax.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\fax.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll
6392C:\WINDOWS\system32\SppExtComObj.exe -EmbeddingC:\Windows\System32\SppExtComObj.Exe—svchost.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
KMS Connection Broker
Version:
10.0.19041.3996 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\sppextcomobj.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\bcrypt.dll
c:\windows\system32\oleaut32.dll
Total events
627
Read events
624
Write events
3
Delete events
0

Modification events

(PID) Process:(6048) opticare.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(6048) opticare.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(6048) opticare.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
Executable files
1
Suspicious files
1
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
6068fax.exeC:\Users\admin\AppData\Local\Temp\opticare.exeexecutable
MD5:49A102718EF7301237D2E6E19107D0AE
SHA256:5A43324CC84C1482E20ECF8B8E1F21229B750FE5BF7A79700398023C4785BF8A
6068fax.exeC:\Users\admin\AppData\Local\Temp\opti9CF7.txtbinary
MD5:1DB1043B81C3DE9A56234837D686EB1E
SHA256:73D97DCE284DB98D57EBAA1E0A850ED1E7F4A705B94173D62BC17A244B0AD393
6048opticare.exeC:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\XHLV790D.htmhtml
MD5:5CD0D1D6A19C627A45F8CBA6CEF3FE21
SHA256:4CEAC9D5BFC9DC4B6C0419219297E715ECBD8721F933D5D0A02434BF98CD635C
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
24
DNS requests
17
Threats
6

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
5496
MoUsoCoreWorker.exe
GET
200
23.216.77.27:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
—
—
GET
200
23.216.77.27:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5496
MoUsoCoreWorker.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
—
—
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
6048
opticare.exe
GET
200
193.122.130.0:80
http://checkip.dyndns.org/
unknown
—
—
whitelisted
6544
svchost.exe
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
6048
opticare.exe
GET
404
79.170.44.87:80
http://ebuyswap.com/images/kimg4.png
unknown
—
—
malicious
2392
SIHClient.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
—
—
whitelisted
2392
SIHClient.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
6048
opticare.exe
GET
—
79.170.44.87:80
http://ebuyswap.com/images/kimg4.png
unknown
—
—
malicious
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
—
—
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5496
MoUsoCoreWorker.exe
23.216.77.27:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
—
—
23.216.77.27:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
5496
MoUsoCoreWorker.exe
23.35.229.160:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
—
—
23.35.229.160:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
6048
opticare.exe
193.122.130.0:80
checkip.dyndns.org
ORACLE-BMC-31898
US
whitelisted
6048
opticare.exe
46.249.3.66:13831
—
Rial Com JSC
RU
unknown
3216
svchost.exe
172.211.123.248:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 4.231.128.59
  • 20.73.194.208
whitelisted
crl.microsoft.com
  • 23.216.77.27
  • 23.216.77.5
  • 23.216.77.31
  • 23.216.77.22
  • 23.216.77.19
  • 23.216.77.39
  • 23.216.77.30
  • 23.216.77.32
  • 23.216.77.36
whitelisted
www.microsoft.com
  • 23.35.229.160
whitelisted
google.com
  • 172.217.16.142
whitelisted
checkip.dyndns.org
  • 193.122.130.0
  • 132.226.247.73
  • 132.226.8.169
  • 193.122.6.168
  • 158.101.44.242
whitelisted
client.wns.windows.com
  • 172.211.123.248
whitelisted
login.live.com
  • 40.126.32.68
  • 20.190.160.2
  • 20.190.160.66
  • 20.190.160.5
  • 20.190.160.131
  • 40.126.32.140
  • 40.126.32.134
  • 20.190.160.132
whitelisted
ocsp.digicert.com
  • 184.30.131.245
whitelisted
ebuyswap.com
  • 79.170.44.87
malicious
slscr.update.microsoft.com
  • 20.12.23.50
whitelisted

Threats

PID
Process
Class
Message
2196
svchost.exe
Device Retrieving External IP Address Detected
ET DYN_DNS External IP Lookup Domain in DNS Query (checkip .dyndns .org)
6048
opticare.exe
Device Retrieving External IP Address Detected
ET INFO External IP Lookup - checkip.dyndns.org
6048
opticare.exe
Device Retrieving External IP Address Detected
ET MALWARE Upatre External IP Check
6048
opticare.exe
A Network Trojan was detected
ET MALWARE Mazilla Suspicious User-Agent Jan 15 2015
6048
opticare.exe
A Network Trojan was detected
ET MALWARE Mazilla Suspicious User-Agent Jan 15 2015
6048
opticare.exe
A Network Trojan was detected
ET MALWARE Mazilla Suspicious User-Agent Jan 15 2015
No debug info
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Reports
fax.exe