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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea. 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


RuRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea
SHA3-384 hash: 9bfcb7736eff599bd48642984811ae677c30f73419088b830c5d363316c66ce3fe4f4e635af8754f686090c47c50cb80
SHA1 hash: 5846dbbce0d4df103d0d0fb19a3230f8a87b0d65
MD5 hash: e1b655657e09f8d882fce9ca90139fb7
humanhash: uncle-four-autumn-march
File name:5.msi
Download: download sample
Signature RuRAT
Create hunting rule
File size:28'986'880 bytes
First seen:2026-07-28 19:36:35 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 393216:Pp1s7O5Sz3ds708J/LrRQLJg3g9DGH0bpZlJjfFx3O1lP1ICVmTovfYwOv4QS0V:v1qNgBQL+3g9DGHWjdxyICVo
TLSH T130571285F6518879FA5F0231A6FABF08547BFCEA13D4624934E8B118A3E3ED90D520D7
TrID 66.4% (.MSI) Microsoft Windows Installer (454500/1/170)
16.5% (.MSM) Windows Installer Merge Module (113019/2/34)
8.9% (.MST) Windows SDK Setup Transform script (61000/1/5)
6.5% (.MSP) Windows Installer Patch (44509/10/5)
1.1% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter smica83
Tags:msi RuRAT signed

Code Signing Certificate

Organisation:REMOTE UTILITIES PTE. LTD.
Issuer:GlobalSign GCC R45 CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2025-01-14T06:45:16Z
Valid to:2028-01-15T06:45:16Z
Serial number: 1b39b74a07454d836c1d9eec
Intelligence: 4 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 86b5bf11004452550f2d92d67a06dd9997f0c66b27ffb895286d159b7bf58e88
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
HU HU
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/74a77cee-89ff-4948-9c96-79d107d51e5c/
Detection:
RemoteUtilitiesRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/76588/
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-vm signed
Link:
https://www.filescan.io/uploads/6a6904d5ab91612234701da1/reports/22d5a7ad-7632-4091-a691-f5faf2934b97/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea
Verdict:
Unknown
File Type:
msi
First seen:
2026-07-28T23:46:00Z UTC
Last seen:
2026-07-30T11:28:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea/results?tab=lookup
Result
Threat name:
RMSRemoteAdmin, Remote Utilities
Create hunting rule
Detection:
suspicious
Classification:
troj.evad
Score:
36 / 100
Link:
https://www.joesandbox.com/analysis/1949191
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Detected Remote Utilities RAT
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1949191 Sample: 5.msi Startdate: 28/07/2026 Architecture: WINDOWS Score: 36 44 xvmToken.com 2->44 46 windowsupd.to 2->46 48 41 other IPs or domains 2->48 58 Suricata IDS alerts for network traffic 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Detected Remote Utilities RAT 2->62 64 2 other signatures 2->64 8 msiexec.exe 93 86 2->8         started        12 rutserv.exe 2->12         started        15 msiexec.exe 6 2->15         started        signatures3 process4 dnsIp5 34 C:\Program Files (x86)\...\rutserv.exe, PE32 8->34 dropped 36 C:\Program Files (x86)\...\rfusclient.exe, PE32 8->36 dropped 38 en_server_stop_B60...E7A415B72132E14.exe, PE32 8->38 dropped 42 40 other files (none is malicious) 8->42 dropped 66 Detected Remote Utilities RAT 8->66 17 rutserv.exe 8 3 8->17         started        20 rutserv.exe 3 8->20         started        22 rfusclient.exe 7 8->22         started        30 4 other processes 8->30 50 185.235.219.207 NETH-ASUA Ukraine 12->50 52 62.60.248.119 NETCRAFTERSOUEEE France 12->52 54 107 other IPs or domains 12->54 24 rfusclient.exe 12->24         started        26 rutserv.exe 12->26         started        28 rfusclient.exe 12->28         started        40 C:\Users\user\AppData\Local\...\MSI67FA.tmp, PE32 15->40 dropped file6 signatures7 process8 signatures9 56 Detected Remote Utilities RAT 24->56 32 rfusclient.exe 24->32         started        process10
Score:
96%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
CAB:COMPRESSION:LZX Executable Office Document PE (Portable Executable) PE File Layout SVG
Link:
https://app.malva.re/file/e1b655657e09f8d882fce9ca90139fb7
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mbxuevqbf436pyjaszuirzvhxlisvoyajyjvyt3ghpdt4esgthva._file
Result
Malware family:
rurat
Create hunting rule
Score:
  10/10
Tags:
family:rurat backdoor discovery persistence privilege_escalation ransomware trojan
Link:
https://tria.ge/reports/260728-ybmtrsbe36/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Embeds OpenSSL
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
Badlisted process makes network request
Enumerates connected drives
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Contacts a large (522) amount of remote hosts
Family: RuRAT
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/606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea

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:NET
Create hunting rule
Author:malware-lu
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:test_rule_vldslv
Create hunting rule
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

RuRAT

Java Script (JS) js 309373483b37a15cf1f6372a918418681c4fbc549cc128429c672e8d837dbf88

RuRAT

Microsoft Software Installer (MSI) msi 606f4256012f37e7e120966888e6a7bad12abb004e135c4f663bc73e124699ea

(this sample)

  
Dropped by
MD5 28abf9601234e3e8a372878eafcf589e
Cape
Cape
https://www.capesandbox.com/analysis/76588/
  
Dropped by
SHA256 309373483b37a15cf1f6372a918418681c4fbc549cc128429c672e8d837dbf88
  
URLhaus
https://urlhaus.abuse.ch/url/3893290/
  
Delivery method
Distributed via web download

Comments