MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20b37d457b9e5f1e1dc85e6fcdbafa5d0daafeac23d578b58cbb8816f16abdea. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: 20b37d457b9e5f1e1dc85e6fcdbafa5d0daafeac23d578b58cbb8816f16abdea
SHA3-384 hash: 083abcb330490a30fa50c67aa4dafc098423037b33d9601a9ed794d6d952dac991e67f85b4ef9bec9d2d05aad223fc50
SHA1 hash: 0398a747526ba4b976abbcdf6ab0b86a14b1ee44
MD5 hash: d9508a917e6e4720b885179aa2923a09
humanhash: avocado-don-solar-ink
File name:rrck890.vbs
Download: download sample
File size:16'406 bytes
First seen:2025-09-25 13:35:48 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 384:XpWoRWUf75OcBwRIcmR+XzQtCkJgBmAjA6rvfNf0Xa:XscYijyQGBTc6rtf0Xa
TLSH T15772ED3DA554EFF00B5F32F0109B7D1620A4D322B9359E7DA9AAC5643F222528FA54EC
Magika vba
Reporter abuse_ch
Tags:vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
33
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 obfuscated obfuscated powershell
Verdict:
Malicious
File Type:
vbs
First seen:
2025-09-25T08:04:00Z UTC
Last seen:
2025-09-25T08:04:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan.Multi.Stego.gen PDM:Trojan.Win32.Generic Trojan-Downloader.PowerShell.NanoShield.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Suspicious PowerShell IEX Execution Patterns
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
1 match(es)
Verdict:
Malicious
Threat:
Trojan-Downloader.PowerShell.NanoShield
Threat name:
Script-WScript.Trojan.Guloader
Status:
Malicious
First seen:
2025-09-25 13:28:34 UTC
File Type:
Text (VBS)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
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:Sus_CMD_Powershell_Usage
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.

Comments