MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 56b4683889bc8c9a8cbceb1b9d5a87d6eb6f6f801adb95770d44a7ffdc3f69bf. 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
AgentTesla
Vendor detections: 10
| SHA256 hash: | 56b4683889bc8c9a8cbceb1b9d5a87d6eb6f6f801adb95770d44a7ffdc3f69bf |
|---|---|
| SHA3-384 hash: | a35c36f19dbc7f47d72d859f2f70baf6a745243cce1e401730b5c0d8bb5fc6ba5261751551fa5aa3a74e9a2c224b79b5 |
| SHA1 hash: | c1687a77a1d67f6a2529a50c7d017df221c451ed |
| MD5 hash: | 9c8631d1b30cd2fd464c779247b61607 |
| humanhash: | monkey-green-fix-ceiling |
| File name: | thursdayconstraints.vbs |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 151'578 bytes |
| First seen: | 2025-08-14 15:26:17 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | application/octet-stream |
| ssdeep | 1536:x8qEzb/rgGpRrjDJkCkRFklYBtyo9hxUmleC3h:2ngGpdDJkCkRFkCyEheXmh |
| Threatray | 3'767 similar samples on MalwareBazaar |
| TLSH | T18AE363162C5F78E11375F226B8B83A8DEFCC82E6241D5C507B8FF2980F7554AA98474E |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | AgentTesla vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
69
Origin country :
DEVendor Threat Intelligence
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
94.9%
Tags:
obfuscate xtreme spawn lien
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Found Tor onion address
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Gathering data
Detection:
agenttesla
Verdict:
Malicious
Threat:
NetTool.PowerShellUA.FTP
Threat name:
Script-WScript.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-08-14 15:27:37 UTC
File Type:
Text (VBS)
AV detection:
9 of 24 (37.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 3'757 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla discovery execution keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
AgentTesla
Agenttesla family
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: | detect_tiny_vbs |
|---|---|
| Author: | daniyyell |
| Description: | Detects tiny VBS delivery technique |
| Rule name: | without_attachments |
|---|---|
| Author: | Antonio Sanchez <asanchez@hispasec.com> |
| Description: | Rule to detect the no presence of any attachment |
| Reference: | http://laboratorio.blogs.hispasec.com/ |
| Rule name: | with_urls |
|---|---|
| Author: | Antonio Sanchez <asanchez@hispasec.com> |
| Description: | Rule to detect the presence of an or several urls |
| Reference: | http://laboratorio.blogs.hispasec.com/ |
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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