MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c99c37da2bb0faa665a0952ac99b4ff0fff162fa73f6367b18698579aee4470f. 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 6 File information Comments

SHA256 hash: c99c37da2bb0faa665a0952ac99b4ff0fff162fa73f6367b18698579aee4470f
SHA3-384 hash: 80231b585bf5114492dff5f6bf515a50cad120c58be2cfce0bae47d276af2eb30e6481e1737bda7d99bc40f18a5320be
SHA1 hash: 7ad0b64b5f17ed8b7141690c609560f9a26206be
MD5 hash: a4a4cc6e190d1aee96ca7c2bb9ed7498
humanhash: magazine-nebraska-hot-mobile
File name:Wisemenchat.msi
Download: download sample
Signature ConnectWise
File size:13'516'800 bytes
First seen:2025-09-13 17:06:26 UTC
Last seen:2025-09-13 21:36:14 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 393216:7cVPOBdYcVPOMcVPOAcVPOKcVPODcVPOAcVPOd:7cVmBdYcVmMcVmAcVmKcVmDcVmAcVmd
TLSH T166D623226AFD8598F4F39F34F97AA9A5857AFC248D62C41F2315780E1972B418273373
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 JAMESWT_WT
Tags:ConnectWise msi securedocusharex-com-atera

Intelligence


File Origin
# of uploads :
3
# of downloads :
31
Origin country :
IT IT
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
expand installer lolbin obfuscated remote 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:
2025-09-13T16:52:00Z UTC
Last seen:
2025-09-13T16:52:00Z UTC
Hits:
~10
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.Adware.Generic
Status:
Suspicious
First seen:
2025-09-10 22:55:12 UTC
File Type:
Binary (Archive)
Extracted files:
175
AV detection:
10 of 36 (27.78%)
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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.

Web download

ConnectWise

Microsoft Software Installer (MSI) msi c99c37da2bb0faa665a0952ac99b4ff0fff162fa73f6367b18698579aee4470f

(this sample)

  
Delivery method
Distributed via web download

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