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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28f113c01cdf8cc540bc0b73865819b879078b6b4a7df34e6dcddb8bdef2605f. 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



Threat unknown


Vendor detections: 9


Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash: 28f113c01cdf8cc540bc0b73865819b879078b6b4a7df34e6dcddb8bdef2605f
SHA3-384 hash: 21d2c125d5cc8c3c74a1dc38e72a469767841df2337433fa80760c558c71b62417fd70757a137ffc295f002352fe5e7f
SHA1 hash: a81c68675987b5b5ce9077f49c22ccb30f948b36
MD5 hash: abac9cd9de486a88a9a255c426623367
humanhash: magnesium-xray-berlin-twenty
File name:bugpatch.msi
Download: download sample
File size:27'648 bytes
First seen:2026-09-23 10:25:10 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 384:KZOWThBSBSyuqrqPMYx8jMey3M5JC0ioXYGWviaoAr+vaSx5WG1N/0rx:KbNBIuqrqPdeWMbCbGuy5VN/0r
TLSH T19AC22B56B600D332C9470B354E2F97E48F759C589F6321123ADBB34C2E72AD166FA9E0
TrID 86.8% (.MSI) Microsoft Windows Installer (454500/1/170)
11.6% (.MST) Windows SDK Setup Transform script (61000/1/5)
1.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika unknown
Reporter smica83
Tags:msi

Intelligence


File Origin
# of uploads :
1
# of downloads :
69
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
CAB evasive installer obfuscated opendir
Verdict:
Unknown
File Type:
msi
First seen:
2026-09-22T15:11:00Z UTC
Last seen:
2026-09-25T00:56:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
56 / 100
Signature
Sigma detected: WScript or CScript Dropper
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript called in batch mode (surpress errors)
WScript reads language and country specific registry keys (likely country aware script)
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1976714 Sample: bugpatch.msi Startdate: 23/09/2026 Architecture: WINDOWS Score: 56 82 rpc.mevblocker.io 2->82 84 rpc.flashbots.net 2->84 86 7 other IPs or domains 2->86 100 Sigma detected: WScript or CScript Dropper 2->100 11 msiexec.exe 84 45 2->11         started        14 cmd.exe 1 2->14         started        17 msiexec.exe 3 2->17         started        signatures3 process4 file5 76 C:\Users\user\AppData\Local\...\YprEff9d.cmd, DOS 11->76 dropped 78 C:\Users\user\AppData\Local\...\7y3w0kf6H1.js, ASCII 11->78 dropped 80 C:\Users\user\AppData\...\0Z4taicPKkUe.cfg, ASCII 11->80 dropped 19 cmd.exe 1 11->19         started        114 Wscript called in batch mode (surpress errors) 14->114 22 cmd.exe 2 14->22         started        24 conhost.exe 1 14->24         started        signatures6 process7 signatures8 102 Wscript called in batch mode (surpress errors) 19->102 26 cmd.exe 2 19->26         started        29 conhost.exe 19->29         started        31 wscript.exe 1 22->31         started        33 tar.exe 1001 22->33         started        36 curl.exe 1 22->36         started        38 2 other processes 22->38 process9 file10 104 Wscript called in batch mode (surpress errors) 26->104 40 tar.exe 121 26->40         started        43 wscript.exe 1 1 26->43         started        46 curl.exe 2 26->46         started        51 2 other processes 26->51 106 Windows Scripting host queries suspicious COM object (likely to drop second stage) 31->106 108 WScript reads language and country specific registry keys (likely country aware script) 31->108 49 node.exe 5 31->49         started        60 C:\Users\user\AppData\Local\...\npx, Bourne-Again 33->60 dropped 62 C:\Users\user\AppData\Local\...\npm, Bourne-Again 33->62 dropped 64 C:\Users\user\AppData\Local\...\which.js, a 33->64 dropped 66 23 other files (none is malicious) 33->66 dropped signatures11 process12 dnsIp13 68 C:\Users\user\AppData\Local\...\npx.ps1, a 40->68 dropped 70 C:\Users\user\AppData\Local\...\npx-cli.js, a 40->70 dropped 72 C:\Users\user\AppData\Local\...\npx, Bourne-Again 40->72 dropped 74 42 other files (none is malicious) 40->74 dropped 110 Windows Scripting host queries suspicious COM object (likely to drop second stage) 43->110 112 WScript reads language and country specific registry keys (likely country aware script) 43->112 53 node.exe 3 43->53         started        94 nodejs.org 104.16.213.131, 443, 49741, 49747 CLOUDFLARENET-CloudflareIncUS Canada 46->94 96 127.0.0.1 unknown unknown 46->96 98 104.20.24.117, 443, 49765 CLOUDFLARENET-CloudflareIncUS Canada 49->98 56 conhost.exe 49->56         started        file14 signatures15 process16 dnsIp17 88 mainnet.gateway.tenderly.co 35.227.193.242, 443, 49748, 49759 GOOGLE-CLOUD-PLATFORM-GoogleLLCUS United States 53->88 90 eth.drpc.org 104.18.11.59, 443, 49753, 49763 CLOUDFLARENET-CloudflareIncUS Canada 53->90 92 5 other IPs or domains 53->92 58 conhost.exe 53->58         started        process18
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
CAB:COMPRESSION:MSZIP Office Document
Threat name:
Win32.Trojan.Nodebot
Status:
Malicious
First seen:
2026-09-22 22:03:20 UTC
File Type:
Binary (Archive)
Extracted files:
3
AV detection:
6 of 23 (26.09%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence privilege_escalation ransomware
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Runs net.exe
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
cURL User-Agent
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Drops file in Windows directory
Enumerates connected drives
Creates a file in the Startup directory
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

File information


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

Comments