MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec3f7bd79784eb5589f9692952d30b25493aae28d054eaf8fd30e90d399064b3. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
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SHA256 hash: ec3f7bd79784eb5589f9692952d30b25493aae28d054eaf8fd30e90d399064b3
SHA3-384 hash: ab3dab62fb4e0b03eac46bc15f8f76104b6e615e3422b59653870f6a3fbf4fcfdc08b970ca11f90c7415c206a53fd837
SHA1 hash: a83752b1e366fd6c7b7c3cd0f2e6c9b20b79be15
MD5 hash: e6043aa4f57d642b4eb74a33b3fae7a6
humanhash: spring-november-india-grey
File name:FedEx598577646738.js
Download: download sample
Signature PhantomStealer
Create hunting rule
File size:28'530'288 bytes
First seen:2026-07-29 12:21:32 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:NGwbe68z6TV1OessklkRU0tVzmwJ8/5YNp3Maw6FBmD6QSHggdYCDPxQ0jx1cqID:w5vmJHoFPBdNxCx4
TLSH T17157A9EB31850D07B17F36298C0993FD0A6BD6253AB4AED299C1BE9EC351C618DD1363
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika autohotkey
Reporter lowmal3
Tags:js PhantomStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
175
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade repaired
Link:
https://www.filescan.io/uploads/6a69f06f0e7776213bf22d19/reports/ecfefa11-279a-4430-a71b-335884befcda/overview
Verdict:
Malicious
Labled as:
GT:JS.Agent.1013
Link:
https://www.hybrid-analysis.com/sample/ec3f7bd79784eb5589f9692952d30b25493aae28d054eaf8fd30e90d399064b3
Verdict:
Malicious
File Type:
js
First seen:
2026-07-29T05:12:00Z UTC
Last seen:
2026-07-31T10:25:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/ec3f7bd79784eb5589f9692952d30b25493aae28d054eaf8fd30e90d399064b3/results?tab=lookup
Result
Threat name:
KeyLogger, Phantom stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1949484
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
Creates a thread in another existing process (thread injection)
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Drops script or batch files to the startup folder
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
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: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
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 dnsIp2 2 Behavior Graph ID: 1949484 Sample: FedEx598577646738.js Startdate: 29/07/2026 Architecture: WINDOWS Score: 100 38 www.youtube.com 2->38 40 www.wikipedia.org 2->40 42 41 other IPs or domains 2->42 52 Suricata IDS alerts for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 21 other signatures 2->58 9 wscript.exe 1 2->9         started        11 wscript.exe 27 3 2->11         started        signatures3 process4 file5 15 powershell.exe 14 7 9->15         started        19 powershell.exe 9->19         started        34 C:\...\FedEx598577646738.js:Zone.Identifier, ASCII 11->34 dropped 36 C:\Users\user\...\FedEx598577646738.js, Unicode 11->36 dropped 68 Suspicious powershell command line found 11->68 70 Wscript starts Powershell (via cmd or directly) 11->70 72 Drops script or batch files to the startup folder 11->72 74 5 other signatures 11->74 signatures6 process7 dnsIp8 44 cloudinary.map.fastly.net 151.101.193.137, 443, 49776, 49777 FASTLY-FastlyIncUS Canada 15->44 46 Found many strings related to Crypto-Wallets (likely being stolen) 15->46 48 Writes to foreign memory regions 15->48 50 Injects a PE file into a foreign processes 15->50 21 MSBuild.exe 4 15->21         started        24 conhost.exe 15->24         started        26 MSBuild.exe 3 19->26         started        28 conhost.exe 19->28         started        signatures9 process10 signatures11 60 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 21->60 62 Writes to foreign memory regions 21->62 64 Allocates memory in foreign processes 21->64 66 3 other signatures 21->66 30 chrome.exe 21->30 injected 32 chrome.exe 21->32         started        process12
Verdict:
Malware
YARA:
1 match(es)
Tags:
DeObfuscated PowerShell T1027 T1059.001
Link:
https://app.malva.re/file/e6043aa4f57d642b4eb74a33b3fae7a6
Gathering data
Threat name:
Script-JS.Downloader.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2026-07-29 14:19:15 UTC
AV detection:
9 of 24 (37.50%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5q7xxv4xqtvvlcpzneuvfuylevetvlri2bkov6h5gduq2omqmszq._file
Result
Malware family:
phantom_stealer
Create hunting rule
Score:
  10/10
Tags:
family:phantom_stealer collection discovery execution persistence privilege_escalation stealer
Link:
https://tria.ge/reports/260729-pjxt9swshy/
Behaviour
Checks processor information in registry
Enumerates system info in registry
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 Task Scheduler COM API
outlook_office_path
outlook_win_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Creates a file in the Startup directory
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Detects PhantomStealer written in C#
Family: PhantomStealer
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/ec3f7bd79784eb5589f9692952d30b25493aae28d054eaf8fd30e90d399064b3

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
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)

File information

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

Comments