File name:

cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6

Full analysis: https://app.any.run/tasks/22fc40c8-2782-4874-83e3-991b3b10699f
Verdict: Malicious activity
Threats:

A backdoor is a type of cybersecurity threat that allows attackers to secretly compromise a system and conduct malicious activities, such as stealing data and modifying files. Backdoors can be difficult to detect, as they often use legitimate system applications to evade defense mechanisms. Threat actors often utilize special malware, such as PlugX, to establish backdoors on target devices.

Malware Trends Tracker     >>>
Analysis date: April 27, 2025, 13:48:18
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
floxif
backdoor
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections
MD5:

B53680E56427B0C3A0F8B2E2E1905876

SHA1:

CCA015315455FAB9180612FE057FDA2B1F1594D9

SHA256:

CDFBBE484713C1D57EEB5A54915CDFA9FFAB386B2E4410DBA4EEC87227758BE6

SSDEEP:

12288:P3CUO2He/fQ0Ab4yOgZR1qKb+aS8tZt1jh5j2tu9Dg5nT92sSv:P3CUO2CfvA/Og9qKb+aSwg5ssSv

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

    • Executing a file with an untrusted certificate

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • FLOXIF mutex has been found

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Connects to the CnC server

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Process drops legitimate windows executable

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Reads security settings of Internet Explorer

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Contacting a server suspected of hosting an CnC

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

  • INFO

    • Reads the computer name

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • The sample compiled with korean language support

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Failed to create an executable file in Windows directory

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • The sample compiled with english language support

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Checks supported languages

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Checks proxy server information

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)
      • slui.exe (PID: 7836)

    • Create files in a temporary directory

      • cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe (PID: 7292)

    • Reads the software policy settings

      • slui.exe (PID: 7836)
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) (35.8)
.exe | Win64 Executable (generic) (31.7)
.scr | Windows screen saver (15)
.dll | Win32 Dynamic Link Library (generic) (7.5)
.exe | Win32 Executable (generic) (5.1)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2025:02:24 05:41:56+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 278528
InitializedDataSize: 208896
UninitializedDataSize: -
EntryPoint: 0x3976a
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 6.1.1.793
ProductVersionNumber: 5.5.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Korean
CharacterSet: Unicode
Comments: -
CompanyName: AhnLab, Inc.
FileDescription: Auto Update Utility
FileVersion: 6, 1, 1, 793
InternalName: Autoup
LegalCopyright: Copyright (C), AhnLab, Inc. 1998-2018, All rights reserved.
LegalTrademarks: -
OriginalFileName: autoup.exe
PrivateBuild: -
ProductName: Smart Update Utility
ProductVersion: 5, 5, 0, 0
SpecialBuild: -
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
126
Monitored processes
2
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #FLOXIF cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe slui.exe

Process information

PID
CMD
Path
Indicators
Parent process
7292"C:\Users\admin\Desktop\cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe" C:\Users\admin\Desktop\cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe
explorer.exe
User:
admin
Company:
AhnLab, Inc.
Integrity Level:
MEDIUM
Description:
Auto Update Utility
Exit code:
10300
Version:
6, 1, 1, 793
Modules
Images
c:\users\admin\desktop\cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.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
7836C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Exit code:
0
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
Total events
3 797
Read events
3 794
Write events
3
Delete events
0

Modification events

(PID) Process:(7292) cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(7292) cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(7292) cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.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
7292cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exeC:\Users\admin\AppData\Local\Temp\conres.dllexecutable
MD5:7574CF2C64F35161AB1292E2F532AABF
SHA256:DE055A89DE246E629A8694BDE18AF2B1605E4B9B493C7E4AEF669DD67ACF5085
7292cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exeC:\Users\admin\AppData\Local\Temp\conres.dll.000text
MD5:1130C911BF5DB4B8F7CF9B6F4B457623
SHA256:EBA08CC8182F379392A97F542B350EA0DBBE5E4009472F35AF20E3D857EAFDF1
7292cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exeC:\Users\admin\Desktop\mass.datbinary
MD5:B5E5899FCB7D7D6ED1352F81C24A9069
SHA256:93E12386CD49603CFEFCCF9DEC9B63E49633757ACBE2B95437DE92F160780BBB
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
33
TCP/UDP connections
56
DNS requests
15
Threats
1

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2104
svchost.exe
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
2104
svchost.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
7292
cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe
GET
403
45.79.19.196:80
http://www.aieov.com/logo.gif
unknown
—
—
malicious
—
—
GET
304
20.109.210.53:443
https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL
unknown
—
—
—
—
—
GET
200
20.109.210.53:443
https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL
unknown
—
—
—
7548
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.1.crl
unknown
—
—
whitelisted
7548
SIHClient.exe
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl
unknown
—
—
whitelisted
7548
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.2.crl
unknown
—
—
whitelisted
—
—
GET
200
13.85.23.206:443
https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping
unknown
—
—
—
7548
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.2.crl
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
—
—
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
—
—
172.211.123.250:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted
2104
svchost.exe
23.48.23.143:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
2104
svchost.exe
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
6544
svchost.exe
20.190.160.130:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
7292
cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe
45.79.19.196:80
www.aieov.com
Linode, LLC
US
malicious
3216
svchost.exe
172.211.123.250:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted
2104
svchost.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 4.231.128.59
whitelisted
client.wns.windows.com
  • 172.211.123.250
whitelisted
google.com
  • 142.250.185.78
whitelisted
crl.microsoft.com
  • 23.48.23.143
  • 23.48.23.156
whitelisted
www.microsoft.com
  • 184.30.21.171
whitelisted
login.live.com
  • 20.190.160.130
  • 40.126.32.136
  • 20.190.160.128
  • 40.126.32.138
  • 40.126.32.68
  • 20.190.160.3
  • 20.190.160.132
  • 20.190.160.5
whitelisted
5isohu.com
  • —
whitelisted
www.aieov.com
  • 45.79.19.196
  • 45.33.2.79
  • 173.255.194.134
  • 72.14.185.43
  • 45.33.18.44
  • 45.33.30.197
  • 72.14.178.174
  • 45.33.20.235
  • 45.56.79.23
  • 198.58.118.167
  • 45.33.23.183
  • 96.126.123.244
malicious
slscr.update.microsoft.com
  • 20.109.210.53
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.85.23.206
whitelisted

Threats

PID
Process
Class
Message
7292
cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6.exe
Malware Command and Control Activity Detected
MALWARE [ANY.RUN] Possible Floxif CnC Communication
No debug info
Interactive malware hunting service ANY.RUN
© 2017-2025 ANY.RUN ALL RIGHTS RESERVED
ANY.RUN
Reports
cdfbbe484713c1d57eeb5a54915cdfa9ffab386b2e4410dba4eec87227758be6