MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a63dd3034c2a3ac29e60a80e0298415db8b2ccb6ea40811310e530e5278c50a. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments

SHA256 hash: 2a63dd3034c2a3ac29e60a80e0298415db8b2ccb6ea40811310e530e5278c50a
SHA3-384 hash: 64365ffd9ebe414de53b0ea3d99be1ef170795ebb63dcf41678d2bc931f113aca406590c3e5bda4268da698f8cc7eef9
SHA1 hash: b09cce2acfbb53de075834b127c40277f1435aa9
MD5 hash: f7d5f8eea573805b20464909e7ab08ec
humanhash: high-butter-indigo-may
File name:ScreenConnect.ClientSetup.msi
Download: download sample
Signature ConnectWise
File size:13'541'376 bytes
First seen:2026-01-04 17:16:53 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 393216:mxIQzck8xIQznxIQzFxIQzexIQzexIQznxIQzr:4zOzVzDzAzAzVzr
Threatray 1'286 similar samples on MalwareBazaar
TLSH T1A8D6231023F80815F5B35B35EDBA92B1D83A7E65BE12D04E1761F81E2EB1D809E62773
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 smica83
Tags:ConnectWise msi

Intelligence


File Origin
# of uploads :
1
# of downloads :
85
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
MSI
an embedded setup program or component
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm base64 evasive expand expired-cert explorer fingerprint installer installer lolbin lolbin packed remoteadmin rundll32
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Adware
File Type:
msi
First seen:
2026-01-04T14:33:00Z UTC
Last seen:
2026-01-04T14:49:00Z UTC
Hits:
~10
Detections:
not-a-virus:HEUR:RemoteAdmin.MSIL.ConnectWise.gen
Result
Threat name:
ScreenConnect Tool
Detection:
malicious
Classification:
evad
Score:
84 / 100
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1844463 Sample: ScreenConnect.ClientSetup.msi Startdate: 04/01/2026 Architecture: WINDOWS Score: 84 59 Multi AV Scanner detection for submitted file 2->59 61 .NET source code contains potential unpacker 2->61 63 .NET source code references suspicious native API functions 2->63 65 2 other signatures 2->65 7 msiexec.exe 94 51 2->7         started        11 ScreenConnect.ClientService.exe 2 5 2->11         started        14 svchost.exe 2->14         started        16 5 other processes 2->16 process3 dnsIp4 37 C:\Windows\Installer\MSIB85D.tmp, PE32 7->37 dropped 39 C:\Windows\Installer\MSIB474.tmp, PE32 7->39 dropped 41 C:\...\ScreenConnect.WindowsFileManager.exe, PE32 7->41 dropped 45 9 other files (4 malicious) 7->45 dropped 67 Enables network access during safeboot for specific services 7->67 69 Modifies security policies related information 7->69 18 msiexec.exe 7->18         started        20 msiexec.exe 1 7->20         started        22 msiexec.exe 7->22         started        55 209.50.227.155, 49718, 8041 LEASEWEB-USA-WDCUS United States 11->55 71 Reads the Security eventlog 11->71 73 Reads the System eventlog 11->73 24 ScreenConnect.WindowsClient.exe 2 11->24         started        27 ScreenConnect.WindowsClient.exe 2 11->27         started        75 Changes security center settings (notifications, updates, antivirus, firewall) 14->75 29 MpCmdRun.exe 1 14->29         started        43 C:\Users\user\AppData\Local\...\MSIAA42.tmp, PE32 16->43 dropped file5 signatures6 process7 signatures8 31 rundll32.exe 11 18->31         started        77 Contains functionality to hide user accounts 24->77 35 conhost.exe 29->35         started        process9 file10 47 C:\Users\user\...\ScreenConnect.Windows.dll, PE32 31->47 dropped 49 C:\...\ScreenConnect.InstallerActions.dll, PE32 31->49 dropped 51 C:\Users\user\...\ScreenConnect.Core.dll, PE32 31->51 dropped 53 4 other malicious files 31->53 dropped 57 Contains functionality to hide user accounts 31->57 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 PE Memory-Mapped (Dump) 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
Threat name:
ByteCode-MSIL.PUA.ConnectWise
Status:
Suspicious
First seen:
2026-01-04 11:51:20 UTC
File Type:
Binary (Archive)
Extracted files:
175
AV detection:
7 of 24 (29.17%)
Threat level:
  1/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
backdoor discovery persistence privilege_escalation ransomware rat revoked_codesign
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 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
Binary is signed using a ConnectWise certificate revoked for key compromise.
Sets service image path in registry
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:INDICATOR_RMM_ConnectWise_ScreenConnect
Author:ditekSHen
Description:Detects ConnectWise Control (formerly ScreenConnect). Review RMM Inventory
Rule name:NET
Author:malware-lu
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:win_evilconwi_w0
Author:Karsten Hahn @ G DATA CyberDefense
Description:Settings from app.config that hide the connection of the client. These settings are potentially unwanted

File information


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

ConnectWise

Microsoft Software Installer (MSI) msi 2a63dd3034c2a3ac29e60a80e0298415db8b2ccb6ea40811310e530e5278c50a

(this sample)

Comments