MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


ConnectWise


Vendor detections: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683
SHA3-384 hash: 9a83c7344caa41057b0c97bfe9eb0a713a7ac58b2e35cfac5b895ae88f0d2418cd3b436f0c7e7b0d7675e38745a62be9
SHA1 hash: 0005218dbdead228d45e8612167be308c54893ef
MD5 hash: bfd988b7ebb40a2ef2866698d08c12fb
humanhash: one-carolina-indigo-nuts
File name:ScreenConnect.ClientSetup.msi
Download: download sample
Signature ConnectWise
Create hunting rule
File size:15'310'848 bytes
First seen:2026-08-13 11:23:18 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 393216:phdiEnhdiEjhdiEahdiE/hdiEdhdiEHhdiE:tJvJrJOJ3JhJPJ
TLSH T1E9F6236027FCA65CF1B31A39E93980F5283E7C64ED52822E2790796D5E72DA0C971733
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter abuse_ch
Tags:ConnectWise msi rmm screenconnect

Intelligence

File Origin
# of uploads :
1
# of downloads :
28
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
Link:
https://research.acce.ciphertechsolutions.com/results/50a4594b-55ef-4df5-a7bb-4c246ae46729/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/80856/
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug base64 CAB expand installer installer lolbin overlay packed packed reconnaissance remoteadmin rundll32
Link:
https://www.filescan.io/uploads/6a7da92fee5cf3bc1eadbb46/reports/9897dd7e-f2ac-456e-96e3-ed0a58047a60/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683
Verdict:
Adware
File Type:
msi
First seen:
2026-08-12T15:01:00Z UTC
Last seen:
2026-08-12T16:50:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683/results?tab=lookup
Result
Threat name:
ScreenConnect Tool
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1957487
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to hide user accounts
Enables network access during safeboot for specific services
Joe Sandbox ML detected suspicious sample
Modifies security policies related information
Multi AV Scanner detection for submitted file
Reads the Security eventlog
Reads the System eventlog
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1957487 Sample: ScreenConnect.ClientSetup.msi Startdate: 13/08/2026 Architecture: WINDOWS Score: 84 57 Multi AV Scanner detection for submitted file 2->57 59 .NET source code contains potential unpacker 2->59 61 .NET source code references suspicious native API functions 2->61 63 2 other signatures 2->63 7 msiexec.exe 95 51 2->7         started        11 ScreenConnect.ClientService.exe 17 13 2->11         started        14 svchost.exe 2->14         started        16 7 other processes 2->16 process3 dnsIp4 35 C:\Windows\Installer\MSIB45B.tmp, PE32 7->35 dropped 37 C:\Windows\Installer\MSIB034.tmp, PE32 7->37 dropped 39 C:\...\ScreenConnect.WindowsFileManager.exe, PE32 7->39 dropped 43 9 other files (6 malicious) 7->43 dropped 65 Enables network access during safeboot for specific services 7->65 67 Modifies security policies related information 7->67 18 msiexec.exe 7->18         started        20 msiexec.exe 1 7->20         started        22 msiexec.exe 7->22         started        53 207.189.4.110, 8041 HYONIX-HyonixSG United States 11->53 69 Reads the Security eventlog 11->69 71 Reads the System eventlog 11->71 24 ScreenConnect.WindowsClient.exe 2 11->24         started        73 Changes security center settings (notifications, updates, antivirus, firewall) 14->73 27 MpCmdRun.exe 2 14->27         started        55 127.0.0.1 unknown unknown 16->55 41 C:\Users\user\AppData\Local\...\MSI9BDF.tmp, PE32 16->41 dropped file5 signatures6 process7 signatures8 29 rundll32.exe 11 18->29         started        75 Contains functionality to hide user accounts 24->75 33 conhost.exe 27->33         started        process9 file10 45 C:\Users\user\...\ScreenConnect.Windows.dll, PE32 29->45 dropped 47 C:\...\ScreenConnect.InstallerActions.dll, PE32 29->47 dropped 49 C:\Users\user\...\ScreenConnect.Core.dll, PE32 29->49 dropped 51 4 other malicious files 29->51 dropped 77 Contains functionality to hide user accounts 29->77 signatures11
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
.Net CAB:COMPRESSION:LZX CAB:COMPRESSION:NONE Executable Managed .NET Office Document PDB Path PE (Portable Executable) PE File Layout SOS: 0.21 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.27 SOS: 0.31 SOS: 0.32 SOS: 0.36 SOS: 0.39
Link:
https://app.malva.re/file/bfd988b7ebb40a2ef2866698d08c12fb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hh3jlepuqxips3shpuoepwjl26az2yq5gebaxq2ejrduxjye2bq._file
Verdict:
malicious
Label(s):
ADMINTOOL_ScreenConnect
Create hunting rule
Link:
https://reports.threatray.com/2b9a8f70-b98c-418b-9ca4-0e27eb7fe63b
Result
Malware family:
n/a
Score:
  8/10
Tags:
backdoor discovery persistence privilege_escalation ransomware rat revoked_codesign
Link:
https://tria.ge/reports/260813-nhcx2axhqg/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Boot or Logon Autostart Execution: Authentication Package
Drops file in System32 directory
Enumerates connected drives
ConnectWise ScreenConnect remote access tool
Event Triggered Execution: Component Object Model Hijacking
Executes dropped EXE
Loads dropped DLL
Sets service image path in registry
Signed with revoked ConnectWise certificate
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:INDICATOR_RMM_ConnectWise_ScreenConnect
Create hunting rule
Author:ditekSHen
Description:Detects ConnectWise Control (formerly ScreenConnect). Review RMM Inventory
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ConnectWise

Microsoft Software Installer (MSI) msi f1cfb4ac8fa42e87cb723be8e23ec95ebc0ceb10e988105e1a22623a5d382683

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3902873/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/80856/

Comments