MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0. 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


PhantomStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 5 File information Comments
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SHA256 hash: b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0
SHA3-384 hash: a6077001916dfdb2fb0e312889a03cf2fc72be04554d0ce0bb584997b242892f14f291126738b075f4cd7957dbc8318d
SHA1 hash: caa9aefe6e4781c69eafce2be8b0982987e1b0b3
MD5 hash: 2823d06e4ac82e308fa2721309848a6d
humanhash: failed-zebra-venus-london
File name:startup.js
Download: download sample
Signature PhantomStealer
Create hunting rule
File size:4'743'135 bytes
First seen:2026-04-01 15:36:17 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:7Mb1BAWCzV/UuRhqroY+tioc6AZQ4ZvPLKmZUb7TasACmDo2zwm12t13F7C:4
TLSH T1B526021189C46FB9CFAC5A1C80FD160E93F04B8E541A798EEB33BD46AFE7944520B19D
Magika javascript
Reporter abuse_ch
Tags:js PhantomStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
SE SE
Vendor Threat Intelligence
Gathering data
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69cd3b8a6363ca5d27f0a393
Tags:
vmdetect autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm base64 encrypted obfuscated repaired
Link:
https://www.filescan.io/uploads/69cd3bae90759d6205c0aa01/reports/eb23ea51-1ac5-4fc1-9e91-6299411a6c05/overview
Verdict:
Malicious
Labled as:
TrojanDownloader/JS.Netloader
Link:
https://www.hybrid-analysis.com/sample/b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0
Result
Gathering data
Verdict:
Malicious
File Type:
js
First seen:
2026-03-31T08:00:00Z UTC
Last seen:
2026-04-01T05:06:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan.Script.Generic PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Agent.sb Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Stealerium.sb Trojan.Win32.Vimditator.sb Backdoor.Win32.Androm.sb Trojan-PSW.Win32.Disco.sb Trojan-Dropper.Win32.Injector.sb Trojan.Win32.Agent.sb Trojan.PowerShell.Cobalt.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic Trojan.Win32.InjectorNetT.s Trojan-PSW.Win32.Coins.sb
Link:
https://opentip.kaspersky.com/b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0/results?tab=lookup
Result
Threat name:
KeyLogger, Phantom stealer
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1892257
Signature
Bypasses PowerShell execution policy
Creates autostart registry keys with suspicious values (likely registry only malware)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows shortcut file (LNK) contains suspicious command line arguments
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Costura Assembly Loader
Yara detected Keylogger Generic
Yara detected Phantom stealer
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1892257 Sample: startup.js Startdate: 01/04/2026 Architecture: WINDOWS Score: 100 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Multi AV Scanner detection for submitted file 2->79 81 10 other signatures 2->81 9 wscript.exe 2 4 2->9         started        13 powershell.exe 2->13         started        15 powershell.exe 19 2->15         started        17 powershell.exe 2->17         started        process3 file4 73 C:\Temp\ps_OUObEsMquhh6_1775058800855.ps1, ASCII 9->73 dropped 89 Suspicious powershell command line found 9->89 91 Wscript starts Powershell (via cmd or directly) 9->91 93 Creates autostart registry keys with suspicious values (likely registry only malware) 9->93 99 3 other signatures 9->99 19 powershell.exe 16 9->19         started        95 Writes to foreign memory regions 13->95 97 Injects a PE file into a foreign processes 13->97 22 conhost.exe 13->22         started        24 aspnet_compiler.exe 13->24         started        34 5 other processes 13->34 26 conhost.exe 15->26         started        28 aspnet_compiler.exe 15->28         started        30 aspnet_compiler.exe 15->30         started        36 3 other processes 15->36 32 conhost.exe 17->32         started        signatures5 process6 signatures7 83 Writes to foreign memory regions 19->83 85 Injects a PE file into a foreign processes 19->85 38 aspnet_compiler.exe 19->38         started        41 aspnet_compiler.exe 4 19->41         started        43 aspnet_compiler.exe 4 19->43         started        45 8 other processes 19->45 process8 signatures9 87 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 38->87 47 cmd.exe 41->47         started        49 cmd.exe 1 43->49         started        51 cmd.exe 45->51         started        53 cmd.exe 45->53         started        process10 process11 55 conhost.exe 47->55         started        57 chcp.com 47->57         started        67 2 other processes 47->67 59 taskkill.exe 1 49->59         started        61 conhost.exe 49->61         started        63 timeout.exe 1 49->63         started        65 chcp.com 1 49->65         started        69 4 other processes 51->69 71 4 other processes 53->71
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0/
Verdict:
Malicious
Threat:
Family.PHANTOM_STEALER
Link:
https://tip.neiki.dev/file/b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0
Threat name:
Script-JS.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-04-01 15:37:23 UTC
File Type:
Text (JavaScript)
AV detection:
3 of 36 (8.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wchw7hr5axwvvuhdn7hpfoox6anbnc5y6rw53ehpfupvvju4chia._file
Result
Malware family:
phantom_stealer
Create hunting rule
Score:
  10/10
Tags:
family:phantom_stealer defense_evasion discovery execution persistence stealer
Link:
https://tria.ge/reports/260401-s75rkady6r/
Behaviour
Delays execution with timeout.exe
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Command and Scripting Interpreter: PowerShell
Detects PhantomStealer written in C#
PhantomStealer
Phantom_stealer family
Malware Config
C2 Extraction:
https://api.telegram.org/bot7595742950:AAHzRYcp33DhUSGEZQ_Hx77OZqc-EvRqJhE/sendMessage?chat_id=5427242432
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/b08f6f9e3d05ed5ad0e36fcef2b9d7f01a168bb8f46ddd90ef2d1f5aa69c11d0

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
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.

Comments