MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c. 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: 14


Intelligence 14 IOCs 1 YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c
SHA3-384 hash: a8474e3262125f05bc7f2ea943f5c2e1c49f6dc53055b3a84e24779d5c519f0166bbefb6430121a7db761636ff09b8e9
SHA1 hash: 1edcd96587e7d4c3166c67b9ff522ab060987e87
MD5 hash: 6ea7e33fe2f32a5d165794b4fd2fe0e1
humanhash: washington-wolfram-floor-arizona
File name:Internal.IRS9.msi
Download: download sample
Signature ConnectWise
Create hunting rule
File size:10'072'064 bytes
First seen:2026-02-11 15:40:05 UTC
Last seen:2026-02-11 17:08:45 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:vKaLNkbgfi4QDKaLNkbgRKaLNkbg1KaLNkbg:HWgfiHbWg1WgpWg
Threatray 1'617 similar samples on MalwareBazaar
TLSH T1DEA6237127F88429F1A75B39EE3A89E22938BC64DA26C05F17743D0E1971E509B72373
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 signed

Code Signing Certificate

Organisation:ConnectWise, LLC
Issuer:DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1
Algorithm:sha256WithRSAEncryption
Valid from:2025-06-23T00:00:00Z
Valid to:2028-06-22T23:59:59Z
Serial number: 0abbca120c79810a182f72f89c04358f
Intelligence: 211 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: b7902a93876909ba13bc23013f2c4239db57bfe742f500766a1673c5199fd1fb
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
abuse_ch
ConnectWise C2:
37.72.172.58:7000

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
37.72.172.58:7000 https://threatfox.abuse.ch/ioc/1687440/

Intelligence

File Origin
# of uploads :
2
# of downloads :
63
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
MSI
an embedded setup program or component
Link:
https://research.acce.ciphertechsolutions.com/results/ef074dec-de5d-4276-bc42-77e294a0c6cd/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53021/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=698c9e562afa47e5c645dddf
Tags:
connectwise shellcode virus spawn
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug base64 expand installer installer lolbin masquerade packed rundll32 signed
Link:
https://www.filescan.io/uploads/698ca2e5981ff1d38a51aa54/reports/b642b71c-0852-466f-b9c1-4885a9315dbc/overview
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c
Verdict:
Adware
File Type:
msi
Detections:
BSS:Trojan.Win32.Generic BSS:Exploit.Win32.Generic.nblk BSS:Exploit.Win32.Generic not-a-virus:HEUR:RemoteAdmin.Win32.ConnectWise.gen
Link:
https://opentip.kaspersky.com/ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c/results?tab=lookup
Result
Threat name:
ScreenConnect Tool
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1867581
Signature
.NET source code references suspicious native API functions
Contains functionality to hide user accounts
Creates files in the system32 config directory
Deletes keys which are related to windows safe boot (disables safe mode boot)
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
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1867581 Sample: Internal.IRS9.msi Startdate: 11/02/2026 Architecture: WINDOWS Score: 92 64 instance-nj5wsb-relay.screenconnect.com 2->64 66 server-ovh30010018-relay.screenconnect.com 2->66 72 Multi AV Scanner detection for submitted file 2->72 74 .NET source code references suspicious native API functions 2->74 76 Contains functionality to hide user accounts 2->76 78 2 other signatures 2->78 8 msiexec.exe 104 90 2->8         started        12 ScreenConnect.ClientService.exe 2 17 2->12         started        15 msiexec.exe 6 2->15         started        signatures3 process4 dnsIp5 54 C:\...\ScreenConnect.WindowsClient.exe, PE32 8->54 dropped 56 C:\...\ScreenConnect.ClientService.exe, PE32 8->56 dropped 58 C:\...\ScreenConnect.WindowsClient.exe.config, XML 8->58 dropped 62 21 other files (none is malicious) 8->62 dropped 80 Enables network access during safeboot for specific services 8->80 82 Modifies security policies related information 8->82 84 Deletes keys which are related to windows safe boot (disables safe mode boot) 8->84 17 msiexec.exe 8->17         started        19 msiexec.exe 8->19         started        21 msiexec.exe 1 8->21         started        23 msiexec.exe 8->23         started        68 server-ovh30010018-relay.screenconnect.com 15.204.135.40, 443, 49694 HP-INTERNET-ASUS United States 12->68 86 Reads the Security eventlog 12->86 88 Reads the System eventlog 12->88 25 ScreenConnect.WindowsClient.exe 3 12->25         started        28 ScreenConnect.WindowsClient.exe 3 12->28         started        30 wscript.exe 5 2 12->30         started        60 C:\Users\user\AppData\Local\...\MSIB2EA.tmp, PE32 15->60 dropped file6 signatures7 process8 signatures9 32 rundll32.exe 11 17->32         started        36 rundll32.exe 19->36         started        90 Creates files in the system32 config directory 25->90 92 Contains functionality to hide user accounts 25->92 94 Windows Scripting host queries suspicious COM object (likely to drop second stage) 30->94 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 50 4 other files (none is malicious) 32->50 dropped 70 Contains functionality to hide user accounts 32->70 44 C:\Windows\...\ScreenConnect.Windows.dll, PE32 36->44 dropped 46 C:\...\ScreenConnect.InstallerActions.dll, PE32 36->46 dropped 48 C:\Windows\...\ScreenConnect.Core.dll, PE32 36->48 dropped 52 4 other files (none is malicious) 36->52 dropped signatures12
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: 0.36 SOS: 0.39
Link:
https://app.malva.re/file/6ea7e33fe2f32a5d165794b4fd2fe0e1
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c/
Verdict:
Malicious
Threat:
Family.CONNECTWISE
Link:
https://tip.neiki.dev/file/ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-02-11 15:20:54 UTC
File Type:
Binary (Archive)
Extracted files:
174
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=75mnkg3azd746ixpubpmxgk5yv3dwbrm7vptjog3ux2eekfl36oa._file
Verdict:
malicious
Label(s):
admintool_screenconnect
Create hunting rule
Similar samples:
11f35825fdbf89bee8d779aed746116765fe2b028ed8e3fb2533a5abc2777f29
ConnectWise
1f12c8b6d7094286f3d9965c4563c3ee53a0e4d19cf4a111e7519d0829ffa08e
ConnectWise
28cc4128905aff14091bc5a1822d823affacbfba23e80fbd5035ee74783e2c3f
ConnectWise
32b95bd0f65bb4f926103857859dd1dbdd40ef2a3b52fbda3a6a4cf458edf3c3
ConnectWise
4990164c8296288b93e66901737c1840b43a71adc06ad0ab8ab2bb50aaad22a8
ConnectWise
4d780470993cb94b9d71b7fbc5c65af6ef1b61c25ef258efcf4e3ac72eb59168
ConnectWise
527a521f0cca55ce3bed8b03b9b0917d0929682a0bbd55c15c4e2e449121c644
ConnectWise
error
ConnectWise
fdab07556a11f9dd61330fd681d0821c8a4ec815f84e95cd61530b9e6cb70f3c
ConnectWise
+ 1'607 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:neews backdoor discovery execution persistence privilege_escalation ransomware rat
Link:
https://tria.ge/reports/260211-s4c75sas3g/
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
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
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
Suspicious use of SetThreadContext
Adds Run key to start application
Badlisted process makes network request
Enumerates connected drives
ConnectWise ScreenConnect remote access tool
Command and Scripting Interpreter: PowerShell
Sets service image path in registry
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
angxo.kozow.com:6606
angxo.kozow.com:7707
angxo.kozow.com:8808
angxo.kozow.com:4212
angxo.kozow.com:6066
angxo.kozow.com:7000
angxo.kozow.com:8088
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/ff58d51b60c8ffcf22efa05ecb995dc5763b062cfd5f34b8dba5f44228abdf9c

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.

Cape
Cape
https://www.capesandbox.com/analysis/53021/

Comments