MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e
SHA3-384 hash: 92c4bf071abd54cadd9a6b0fdc21f2b514a1992a1abaa7a6b7be2eb8860829861dd6bb26e84f5950b336dc4a40e8aaff
SHA1 hash: d782d125a6ccff1b4ad3ca2dd902bd1cb3dd0ffb
MD5 hash: 1b7966f69e3280a6cad521baa8207efe
humanhash: princess-alanine-leopard-sweet
File name:SOSTENER.vbs
Download: download sample
File size:15'384 bytes
First seen:2026-03-26 07:38:16 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 384:zJ8LiC5ap9DZxaR154ft35BzQRkMBWFuC5NK16:zGi9jgkmUXHr
TLSH T155623436F61CEFF40B2E21D511877D0260999BA6743A4ABDB8CEC1987F267104EA74DC
Magika vba
Reporter abuse_ch
Tags:vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Gathering data
Detection(s):
TwinWave.EvilVBA.LostAtSeaFuncInDirection.20240306.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69c4e28daacb4c376b142521
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 base64 obfuscated powershell
Link:
https://www.filescan.io/uploads/69c4e2782346b9da57a7cc67/reports/3142cf4d-37cd-4475-914f-1628518e720d/overview
Verdict:
Malicious
Labled as:
VBS/Agent.TGD trojan
Link:
https://www.hybrid-analysis.com/sample/b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e
Result
Gathering data
Verdict:
Malicious
File Type:
vbs
Link:
https://opentip.kaspersky.com/b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e/results?tab=lookup
Result
Threat name:
RDPWrap Tool
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1889353
Signature
.NET source code contains process injector
.NET source code contains very large strings
.NET source code references suspicious native API functions
Contains functionality to capture screen (.Net source)
Contains functionality to hide user accounts
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Net WebClient Casing Anomalies
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
Uses dynamic DNS services
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected RDPWrap Tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1889353 Sample: SOSTENER.vbs Startdate: 26/03/2026 Architecture: WINDOWS Score: 100 21 oficialrem.duckdns.org 2->21 23 shed.dual-low.part-0012.t-0009.t-msedge.net 2->23 25 10 other IPs or domains 2->25 39 Suricata IDS alerts for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Yara detected Powershell download and execute 2->43 47 15 other signatures 2->47 8 wscript.exe 1 2->8         started        signatures3 45 Uses dynamic DNS services 21->45 process4 signatures5 49 VBScript performs obfuscated calls to suspicious functions 8->49 51 Suspicious powershell command line found 8->51 53 Wscript starts Powershell (via cmd or directly) 8->53 55 3 other signatures 8->55 11 powershell.exe 14 15 8->11         started        process6 dnsIp7 27 hasteb.in 45.33.64.25, 443, 49715 LINODE-APLinodeLLCUS United States 11->27 29 gitlab.com 172.65.251.78, 443, 49716 CLOUDFLARENETUS United States 11->29 57 Contains functionality to hide user accounts 11->57 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 15 MSBuild.exe 2 11->15         started        19 conhost.exe 11->19         started        signatures8 process9 dnsIp10 31 oficialrem.duckdns.org 186.169.36.103, 4000 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 15->31 33 Contains functionality to hide user accounts 15->33 35 Contains functionality to register a low level keyboard hook 15->35 37 Installs a global keyboard hook 15->37 signatures11
Score:
95%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e/
Verdict:
Malicious
Threat:
Trojan-Downloader.PowerShell.NanoShield
Link:
https://tip.neiki.dev/file/b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xh677tv2jmet44e5jd7ckblcdmhzeberuny22d6aoj2z75aqoupa._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/260326-jgpszsat4k/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e

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:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique

File information

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

Web download

Visual Basic Script (vbs) vbs b9fdffceba4b093e709d48fe2505621b0f920491a371ad0fc072759ff410751e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3787546/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/59310/

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