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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99
SHA3-384 hash: 83ce47db1d95b2699cb690458c40a5e1ee7505ac39556085bde8e5b998ffb745cd0ac1f7ca528107f93e14f3f58c0d47
SHA1 hash: 35f2216a006b3cfcf359a6c629950da7a7f42bd4
MD5 hash: acb1d27db20663a5932ead2861185a08
humanhash: mexico-berlin-michigan-triple
File name:d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99.msi
Download: download sample
Signature ConnectWise
Create hunting rule
File size:10'244'096 bytes
First seen:2026-09-08 03:19:46 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 98304:WMn1Giy8E1PqhwG6ztZNK9aNGnMn1Giy8E1PqhAMn1Giy8E1PqhpMn1Giy8E1Pqh:hZWiGz3I96rZWijZWi4ZWi
TLSH T17BA6232123FAC168F1B61B35D93965B56936BD12DA22C04F1364BE6E3C31F949A72333
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 whack_sh
Tags:ConnectWise msi signed whack.sh

Code Signing Certificate

Organisation:ConnectWise, LLC
Issuer:DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1
Algorithm:sha256WithRSAEncryption
Valid from:2026-02-20T00:00:00Z
Valid to:2027-02-19T23:59:59Z
Serial number: 01dddbc6e9163d407d980a3eaf798528
Intelligence: 130 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: e1db8670d34a3d8099b9815c9772b37025a7b5d1845ec5256eb22dad7e196725
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
38
Origin country :
US US
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
Link:
https://research.acce.ciphertechsolutions.com/results/6c3eb40e-210c-453c-b536-cd50e9e387e2/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/84475/
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug base64 CAB expand installer installer lolbin overlay packed packed reconnaissance rundll32 signed
Link:
https://www.filescan.io/uploads/6a9f7f07da9d33ef9539a70f/reports/87adb503-8bfe-4beb-bf22-1ee8a1589e5f/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99
Verdict:
Adware
File Type:
msi
Link:
https://opentip.kaspersky.com/d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99/results?tab=lookup
Result
Threat name:
ScreenConnect Tool
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
46 / 100
Link:
https://www.joesandbox.com/analysis/1969670
Signature
.NET source code references suspicious native API functions
Contains functionality to hide user accounts
Creates files in the system32 config directory
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
Sigma detected: Remote Access Tool - ScreenConnect Suspicious Execution
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1969670 Sample: xfjLq85xZ6.msi Startdate: 08/09/2026 Architecture: WINDOWS Score: 46 69 instance-ia4fsw-relay.screenconnect.com 2->69 71 server-ovh30020016-relay.screenconnect.com 2->71 73 check.screenconnect.com 2->73 79 Multi AV Scanner detection for submitted file 2->79 81 .NET source code references suspicious native API functions 2->81 83 Contains functionality to hide user accounts 2->83 85 2 other signatures 2->85 8 msiexec.exe 95 48 2->8         started        12 ScreenConnect.ClientService.exe 2 9 2->12         started        15 msiexec.exe 8 2->15         started        signatures3 process4 dnsIp5 37 C:\Windows\Installer\MSIE865.tmp, PE32 8->37 dropped 39 C:\Windows\Installer\MSIE5D4.tmp, PE32 8->39 dropped 41 C:\...\ScreenConnect.WindowsFileManager.exe, PE32 8->41 dropped 49 10 other files (8 malicious) 8->49 dropped 91 Enables network access during safeboot for specific services 8->91 93 Modifies security policies related information 8->93 17 msiexec.exe 8->17         started        19 msiexec.exe 1 8->19         started        21 msiexec.exe 8->21         started        75 server-ovh30020016-relay.screenconnect.com 15.204.48.24, 443, 49733 OVHFR United States 12->75 95 Reads the Security eventlog 12->95 97 Reads the System eventlog 12->97 23 ScreenConnect.WindowsClient.exe 12->23         started        26 ScreenConnect.WindowsClient.exe 2 12->26         started        43 C:\Users\user\AppData\Local\...\MSICB67.tmp, PE32 15->43 dropped 45 C:\Users\user\AppData\Local\...\MSIBEF3.tmp, PE32 15->45 dropped 47 C:\Users\user\AppData\Local\...\MSIB77F.tmp, PE32 15->47 dropped file6 signatures7 process8 signatures9 28 rundll32.exe 15 13 17->28         started        33 rundll32.exe 12 17->33         started        35 rundll32.exe 11 17->35         started        87 Creates files in the system32 config directory 23->87 89 Contains functionality to hide user accounts 23->89 process10 dnsIp11 77 check.screenconnect.com 3.231.99.252, 443, 49729 AMAZON-AES-AmazoncomIncUS United States 28->77 51 C:\...\ScreenConnect.WindowsInstaller.dll, PE32 28->51 dropped 53 C:\Users\user\...\ScreenConnect.Windows.dll, PE32 28->53 dropped 55 C:\...\ScreenConnect.InstallerActions.dll, PE32 28->55 dropped 63 5 other malicious files 28->63 dropped 99 System process connects to network (likely due to code injection or exploit) 28->99 101 Contains functionality to hide user accounts 28->101 65 8 other malicious files 33->65 dropped 57 C:\...\ScreenConnect.WindowsInstaller.dll, PE32 35->57 dropped 59 C:\Users\user\...\ScreenConnect.Windows.dll, PE32 35->59 dropped 61 C:\...\ScreenConnect.InstallerActions.dll, PE32 35->61 dropped 67 5 other malicious files 35->67 dropped file12 signatures13
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99/
Threat name:
ByteCode-MSIL.PUA.ConnectWise
Create hunting rule
Status:
Malicious
First seen:
2026-09-08 03:21:44 UTC
File Type:
Binary (Archive)
Extracted files:
176
AV detection:
4 of 36 (11.11%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3d54winfuxrkgdn2anffzjhj7nabkkns3bvkkuf3yp6bkjmajsmq._file
Verdict:
malicious
Label(s):
ADMINTOOL_ScreenConnect
Create hunting rule
Link:
https://reports.threatray.com/a9499cd1-1400-4ae7-9da6-bb09ce6de8a4
Result
Malware family:
n/a
Score:
  8/10
Tags:
backdoor discovery persistence privilege_escalation ransomware rat
Link:
https://tria.ge/reports/260908-dvw7bs1bpd/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
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
Badlisted process makes network request
Sets service image path in registry
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/d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99

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 d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/84475/

Comments