MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68
SHA3-384 hash: c8a1a1e1bcdf9efd2860b5a8bccd39460741f1b54e998eee7b16a74edee86dd49f51ccd259447977db7b1bbed29ef57f
SHA1 hash: 0bf2abb33b7fda9ea7a96b68f784684b975e6b92
MD5 hash: 88a8d150f1a63302ddc2d5114cfa5df2
humanhash: cardinal-bluebird-leopard-autumn
File name:ScreenConnect.Client.exe
Download: download sample
Signature ConnectWise
Create hunting rule
File size:86'304 bytes
First seen:2024-04-24 00:51:34 UTC
Last seen:2024-04-24 01:29:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7631a79a9071099fa4803e1c4c5df207 (83 x ConnectWise)
ssdeep 1536:+azWlKzJVcNp++yQNS6xNNCT2l8NE8llbpTaCJRpsWr6cdaQTJSvYYS7Q8x6Eg:yFNpo6rIKlUE8fbkqRfbaQlaYYSy
TLSH T1D9836C13B5D18475E8B30D3118B1D9B4993F7E124E548EAB2398427E0F352D1AE3AE7B
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter bobross_malware2
Tags:ConnectWise exe signed

Code Signing Certificate

Organisation:Connectwise, LLC
Issuer:DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1
Algorithm:sha256WithRSAEncryption
Valid from:2022-08-17T00:00:00Z
Valid to:2025-08-15T23:59:59Z
Serial number: 0b9360051bccf66642998998d5ba97ce
Intelligence: 444 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 82b4e7924d5bed84fb16ddf8391936eb301479cec707dc14e23bc22b8cdeae28
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
304
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 04:11:36 UTC
Tags:
remote screenconnect
Link:
https://app.any.run/tasks/591d0779-b8e8-4066-b048-ee3c6798baa5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Loading a suspicious library
Creating a file
Creating a service
Launching a service
Moving a recently created file
Unauthorized injection to a recently created process
Enabling autorun for a service
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay
Link:
https://www.filescan.io/uploads/662857b414ba3ce82899735f/reports/cd408187-f137-452a-b443-6e737e6e6dcd/overview
Verdict:
Malicious
Labled as:
RiskWare[RemoteAdmin]/ConnectWise
Link:
https://www.hybrid-analysis.com/sample/37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68
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.
Malware family:
ConnectWise
Create hunting rule
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/e82955f2-5905-44a4-815d-60c9dd37bf4b
Result
Threat name:
ScreenConnect Tool
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1430690
Signature
.NET source code references suspicious native API functions
Contains functionality to hide user accounts
Enables network access during safeboot for specific services
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Reads the Security eventlog
Reads the System eventlog
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1430690 Sample: ScreenConnect.Client.exe Startdate: 24/04/2024 Architecture: WINDOWS Score: 60 40 server-nixeba81050-web.screenconnect.com 2->40 42 server-nixeba81050-relay.screenconnect.com 2->42 44 4 other IPs or domains 2->44 50 Multi AV Scanner detection for dropped file 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 .NET source code references suspicious native API functions 2->54 56 2 other signatures 2->56 9 ScreenConnect.Client.exe 2 2->9         started        11 ScreenConnect.ClientService.exe 17 18 2->11         started        15 svchost.exe 1 1 2->15         started        signatures3 process4 dnsIp5 17 dfsvc.exe 132 113 9->17         started        46 server-nixeba81050-relay.screenconnect.com 147.28.128.252, 443, 49741, 49742 RGNET-SEARGnetSeattleWestinEE United States 11->46 66 Reads the Security eventlog 11->66 68 Reads the System eventlog 11->68 21 ScreenConnect.WindowsClient.exe 11->21         started        48 127.0.0.1 unknown unknown 15->48 signatures6 process7 dnsIp8 38 server-nixeba81050-web.screenconnect.com 147.28.128.254, 443, 49714, 49716 RGNET-SEARGnetSeattleWestinEE United States 17->38 30 C:\...\ScreenConnect.WindowsFileManager.exe, PE32 17->30 dropped 32 C:\Users\...\ScreenConnect.WindowsClient.exe, PE32 17->32 dropped 34 ScreenConnect.WindowsBackstageShell.exe, PE32 17->34 dropped 36 13 other files (none is malicious) 17->36 dropped 24 ScreenConnect.WindowsClient.exe 19 6 17->24         started        58 Contains functionality to hide user accounts 21->58 file9 signatures10 process11 signatures12 60 Contains functionality to hide user accounts 24->60 27 ScreenConnect.ClientService.exe 1 3 24->27         started        process13 signatures14 62 Contains functionality to hide user accounts 27->62 64 Enables network access during safeboot for specific services 27->64
Score:
83%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-04-23 21:40:17 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
5 of 24 (20.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g76lfx4vwk5bxrqbyykawhkblorwf2thqnf4cpi6v253ngq6l5ua._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/240424-a73m4adc76/
Behaviour
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Manipulates Digital Signatures
Sets service image path in registry
Unpacked files
SH256 hash:
a665adf1acd014984b818f95699c2205e9e9f7cc10031d5fa52260154004ba9b
MD5 hash:
c7dd4bcf2bdb96e081db2941f13f8154
SHA1 hash:
d7044c4ef07e59cf5e304be00502ea8218cb9297
Link:
https://www.unpac.me/results/3678b44c-1efd-4bb8-828b-6a9cf2ac7278/
SH256 hash:
37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68
MD5 hash:
88a8d150f1a63302ddc2d5114cfa5df2
SHA1 hash:
0bf2abb33b7fda9ea7a96b68f784684b975e6b92
Detections:
INDICATOR_RMM_ConnectWise_ScreenConnect_CERT
Create hunting rule
Link:
https://www.unpac.me/results/3678b44c-1efd-4bb8-828b-6a9cf2ac7278/
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/37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68

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:INDICATOR_RMM_ConnectWise_ScreenConnect_CERT
Create hunting rule
Author:ditekSHen
Description:Detects ConnectWise Control (formerly ScreenConnect) by (default) certificate. Review RMM Inventory
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

ConnectWise

Executable exe 37fcb2df95b2ba1bc601c6140b1d415ba362ea67834bc13d1eaebbb69a1e5f68

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2825063/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertAddCertificateContextToStore
CRYPT32.dll::CertDeleteCertificateFromStore
CRYPT32.dll::CertFreeCertificateContext
CRYPT32.dll::CertOpenSystemStoreA

Comments