MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a316d5310f1e5f12415b740ce2c7e3988635f404a451716a9a85cf7ba93684aa. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash: a316d5310f1e5f12415b740ce2c7e3988635f404a451716a9a85cf7ba93684aa
SHA3-384 hash: 8edf93e61f9378e82de005d274ca4627580b83bbedc90076d43126cc15868c9ee209e4848faf69ec94f91b69e8836c1c
SHA1 hash: b8dfd64259a765f722b9160f2e118431db3a32fc
MD5 hash: a7bbfd40a9646d0de96f5d715fe1a1ca
humanhash: august-eighteen-pasta-bravo
File name:ScreenConnect.ClientSetup.msi
Download: download sample
Signature ConnectWise
File size:13'537'280 bytes
First seen:2025-11-20 07:31:14 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:hHxcp9ym3nltDUJViHxcp9ym32Hxcp9ym3MHxcp9ym3WHxcp9ym34Hxcp9ym3oHl:TGplpNGpEGpqGpkGpGGp2GpW
TLSH T145D623116BF89678F0F22A35E876A0B1A5377C525E22D12E2324791E2C75EC0C9B3777
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 :
54
Origin country :
HU HU
Vendor Threat Intelligence
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 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:
2025-11-20T06:05:00Z UTC
Last seen:
2025-11-21T23:42:00Z UTC
Hits:
~10
Result
Threat name:
ScreenConnect Tool
Detection:
malicious
Classification:
evad
Score:
92 / 100
Signature
.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 dropped file
Multi AV Scanner detection for submitted file
Reads the Security eventlog
Reads the System eventlog
Sigma detected: Remote Access Tool - ScreenConnect Suspicious Execution
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1817562 Sample: ScreenConnect.ClientSetup.msi Startdate: 20/11/2025 Architecture: WINDOWS Score: 92 56 statcom.top 2->56 62 Multi AV Scanner detection for dropped file 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 .NET source code references suspicious native API functions 2->66 68 3 other signatures 2->68 8 msiexec.exe 94 51 2->8         started        12 ScreenConnect.ClientService.exe 2 5 2->12         started        15 svchost.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 46 C:\Windows\Installer\MSIFFC5.tmp, PE32 8->46 dropped 48 C:\Windows\Installer\MSI331.tmp, PE32 8->48 dropped 50 C:\...\ScreenConnect.WindowsFileManager.exe, PE32 8->50 dropped 54 9 other files (7 malicious) 8->54 dropped 70 Enables network access during safeboot for specific services 8->70 72 Modifies security policies related information 8->72 19 msiexec.exe 8->19         started        21 msiexec.exe 1 8->21         started        23 msiexec.exe 8->23         started        58 statcom.top 176.123.6.71, 49687, 8041 ALEXHOSTMD Moldova Republic of 12->58 74 Reads the Security eventlog 12->74 76 Reads the System eventlog 12->76 25 ScreenConnect.WindowsClient.exe 2 12->25         started        28 ScreenConnect.WindowsClient.exe 2 12->28         started        78 Changes security center settings (notifications, updates, antivirus, firewall) 15->78 30 MpCmdRun.exe 1 15->30         started        52 C:\Users\user\AppData\Local\...\MSIF209.tmp, PE32 17->52 dropped file6 signatures7 process8 signatures9 32 rundll32.exe 11 19->32         started        80 Contains functionality to hide user accounts 25->80 36 conhost.exe 30->36         started        process10 file11 38 C:\Users\user\...\ScreenConnect.Windows.dll, PE32 32->38 dropped 40 C:\...\ScreenConnect.InstallerActions.dll, PE32 32->40 dropped 42 C:\Users\user\...\ScreenConnect.Core.dll, PE32 32->42 dropped 44 4 other malicious files 32->44 dropped 60 Contains functionality to hide user accounts 32->60 signatures12
Gathering data
Threat name:
ByteCode-MSIL.PUA.RAdminConnectWise
Status:
Malicious
First seen:
2025-11-20 04:29:10 UTC
File Type:
Binary (Archive)
Extracted files:
175
AV detection:
9 of 24 (37.50%)
Threat level:
  1/5
Verdict:
malicious
Label(s):
admintool_screenconnect
Similar samples:
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
Executes dropped EXE
Loads dropped DLL
Boot or Logon Autostart Execution: Authentication Package
Drops file in System32 directory
Event Triggered Execution: Component Object Model Hijacking
Enumerates connected drives
ConnectWise ScreenConnect remote access tool
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

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 a316d5310f1e5f12415b740ce2c7e3988635f404a451716a9a85cf7ba93684aa

(this sample)

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