MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a5561f75bc36e9903922bf19051697365e79f08f0bd8fed7c13117dd13ed1bfd. 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
KatzStealer
Vendor detections: 12
| SHA256 hash: | a5561f75bc36e9903922bf19051697365e79f08f0bd8fed7c13117dd13ed1bfd |
|---|---|
| SHA3-384 hash: | c6f729c0c6cb0f1aa4b365de04855237e9635e7f949d2b95829290bf2f84eb8e9ba4ac7ed2be70aedeed031fc2ad76fd |
| SHA1 hash: | f5e64d5f82e0418678f58041df905cd9387e8157 |
| MD5 hash: | f73d2514cf769957de7feab1897af250 |
| humanhash: | jig-avocado-ohio-carpet |
| File name: | img__0909090908997878877676767676767000090000000.hta |
| Download: | download sample |
| Signature | KatzStealer |
| File size: | 137'530 bytes |
| First seen: | 2025-10-02 05:51:11 UTC |
| Last seen: | Never |
| File type: |  hta |
| MIME type: | text/html |
| ssdeep | 1536:RHfZx04DPPI8Lcsq6LzS85Ea56QJFjoBj4H:RHfZx0yPPI8d28SLQJUY |
| Threatray | 30 similar samples on MalwareBazaar |
| TLSH | T1EAD399700B2D2B9FDA632C264A7EB0F28A2E531D04FC9097746ECAD0673D16D71AC59D |
| Magika | html |
| Reporter |  abuse_ch |
| Tags: | hta KatzStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
33
Origin country :
SEVendor Threat Intelligence
Detection(s):
Verdict:
Malicious
Score:
99.1%
Tags:
obfuscate xtreme virus
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Payload URLs
URL
File name
http://ixti.net/development/javascript/2011/11/11/prora-enordinancesdeordinances-of-utf8-in-browser-with-js.html
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Labled as:
BZC.UGZ.Boxter.261
Verdict:
Malicious
File Type:
hta
First seen:
2025-09-30T07:21:00Z UTC
Last seen:
2025-10-02T10:28:00Z UTC
Hits:
~10
Detections:
Trojan-Downloader.JS.SLoad.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
84 / 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: Suspicious MSHTA Child Process
Suspicious powershell command line found
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Gathering data
Verdict:
Malicious
Threat:
Trojan-Downloader.JS.SLoad
Threat name:
Script-JS.Trojan.Boxter
Status:
Malicious
First seen:
2025-09-30 14:14:37 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
10 of 38 (26.32%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
katzstealer
Similar samples:
+ 20 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
discovery execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Malware Config
Dropper Extraction:
http://198.23.177.201/img/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| 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.
Web download
Delivery method
Distributed via web download
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