MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932. 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


AteraAgent


Vendor detections: 5


Intelligence 5 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932
SHA3-384 hash: 8af844c7563f729f50339285670d3a3d393dda70845badfe26740669788a92f1e45c6c83d60ca9e5ce6bfc59aa011221
SHA1 hash: e72371ba26d40f7ecb7ec726d2db8fc96d78fa54
MD5 hash: 4d1334a76c1192196bb4c5a0436bb00a
humanhash: emma-mirror-uranus-happy
File name:Joinus.msi
Download: download sample
Signature AteraAgent
Create hunting rule
File size:8'601'600 bytes
First seen:2026-02-27 17:10:06 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:GW/FnmnGYLnWgziirlb4/ieF3GrAfedpvCs3md8r:hnqGYLpZreF3G82yc6
TLSH T1A3862318FBE009AEE5778376C56A8520EA327C893720C54F47A4B6295F3B7A075BF701
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 Anonymous
Tags:AteraAgent msi signed

Code Signing Certificate

Organisation:Atera Networks Ltd
Issuer:DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1
Algorithm:sha256WithRSAEncryption
Valid from:2025-08-20T00:00:00Z
Valid to:2028-08-22T23:59:59Z
Serial number: 086a879629048a0cd6ce8d5c65bcf869
Intelligence: 5 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 2a73143ad9dc94c7427396dbfdc05779eeafddbfb133a24919336a18910fbedd
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
51
Origin country :
US US
Vendor Threat Intelligence
Malware configuration found for:
MSI ReadyToRun
Details
MSI
an embedded component
MSI
an embedded setup program or component
ReadyToRun
a non-library component from the overlay data
Link:
https://research.acce.ciphertechsolutions.com/results/9ebf3a9d-b2ff-4a76-ab67-234ea51dee23/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/54914/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69a1d0278fffa866e3b2dd37
Tags:
n/a
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932
Result
Verdict:
UNKNOWN
Link:
https://labs.inquest.net/dfi/sha256/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Clean
File Type:
msi
Link:
https://opentip.kaspersky.com/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932/results?tab=lookup
Score:
28%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932/
Verdict:
Malicious
Threat:
Family.ATERAAGENT
Link:
https://tip.neiki.dev/file/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3i2jgkw7lpmnar4jojekbzstouoivh4hxahxcuwuwktn3s4jeza._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence privilege_escalation ransomware
Link:
https://tria.ge/reports/260227-vp1q1aat3f/
Behaviour
Checks SCSI registry key(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
Drops file in Windows directory
Enumerates connected drives
Loads dropped DLL
Badlisted process makes network request
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/66d1a49956fadec6823c4b924507329ba8e454fc3dc07b8a96a59536ee5c4932

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:NET
Create hunting rule
Author:malware-lu
Rule name:Suspicious_Process
Create hunting rule
Author:Security Research Team
Description:Suspicious process creation
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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/54914/

Comments