MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5. 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: 13

Intelligence 13 IOCs YARA 22 File information Comments

SHA256 hash:	a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5
SHA3-384 hash:	4e6a5a50e264bdb0d3276b81b828a424b63c800d267f2d315a0223303ecdcf3c4a89dfc62b18fcf32310749581ea7e63
SHA1 hash:	f908dc738b7d8b48abd89b1d15f59f64bf221e88
MD5 hash:	f9a2e202814a3800f382174a0ca91826
humanhash:	cold-september-seventeen-video
File name:	MT103_Euro_162,024.40 _ March - July 2025.js
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	491'758 bytes
First seen:	2025-08-15 15:51:09 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	12288:Byi2FOBmZO4RSevGeC5OhE9UcV1Fwm7ghXyM1m9u:BwFFASSeIUcb+CME0
Threatray	3'742 similar samples on MalwareBazaar
TLSH	T164A423B3BF09FEE32F7E3E009528293C1FD44D5B0548A5EEB9C1049B22CB51A957A1E5
Magika	javascript
Reporter	abuse_ch
Tags:	AgentTesla js

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Generic-EXE.UNOFFICIAL

SecuriteInfo.com.PUA.Base64EXE-2.UNOFFICIAL

Sanesecurity.Malware.26270.JsHeur.UNOFFICIAL

Sanesecurity.Malware.26271.JsHeur.UNOFFICIAL

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689f57a08fd55a79c527415c

Tags:

infosteal emotet

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1758041

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Allocates memory in foreign processes

Antivirus detection for dropped file

Benign windows process drops PE files

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Injects a PE file into a foreign processes

Installs a global keyboard hook

JavaScript file contains suspicious strings

JavaScript source code contains functionality to generate code involving a shell, file or stream

Joe Sandbox ML detected suspicious sample

JScript performs obfuscated calls to suspicious functions

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Potential obfuscated javascript found

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: WScript or CScript Dropper

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5

Verdict:

inconclusive

YARA:

1 match(es)

Tags:

.Net Base64 Block Base64 Payload Contains Base64 Block Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.99

Link:

https://app.malva.re/file/f9a2e202814a3800f382174a0ca91826

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5/

Verdict:

Malicious

Threat:

Family.AGENTTESLA

Link:

https://tip.neiki.dev/file/a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5

Threat name:

Win64.Spyware.Negasteal

Status:

Malicious

First seen:

2025-08-13 14:29:01 UTC

File Type:

Text (JavaScript)

AV detection:

9 of 24 (37.50%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=u57jkh576374yrnov6vrhqi347hgm2f5mdm652igp5u7bywa7hkq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

68ad50d49315a68f6107433dc8fe62450dbf8770a3def940670606b7f1793cfa

AgentTesla

821f9b019ac21f81b607e39ef4bd07993ac46e2a604b2a969928f32ff76094dc

AgentTesla

86801fb1845087286314acb3bac66f9212c58998fce6b7db5cf2b8f1aa13e704

AgentTesla

b383708f5ec6df8f7283f935c174c7ecd60585bb9535d860de3d7474225f4f76

AgentTesla

c19343011218a82e30fcd0682ec99f0f1dd4c8a1b5fa1bc11d5e673e7a7ab2ae

AgentTesla

e526077414e1803631a1dfdeb4d2a7619a9a24ab0a8d7ab9c4ddb321df943280

AgentTesla

error

AgentTesla

+ 3'732 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla discovery execution keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/250815-tas7yaymw2/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

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

Looks up external IP address via web service

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

AgentTesla

Agenttesla family

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a77e951fbff6/report/overview.html

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/a77e951fbff6ffcc45aeafab13c11be7ce6668bd60d9eee9067f69f0e2c0f9d5

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:	agentesla Create hunting rule
Author:	Michelle Khalil
Description:	This rule detects unpacked agenttesla malware samples.

Rule name:	AgentTeslaV2 Create hunting rule
Author:	ditekshen
Description:	AgenetTesla Type 2 Keylogger payload

Rule name:	AgentTeslaV3 Create hunting rule
Author:	ditekshen
Description:	AgentTeslaV3 infostealer payload

Rule name:	AgentTeslaV5 Create hunting rule
Author:	ClaudioWayne
Description:	AgentTeslaV5 infostealer payload

Rule name:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	botnet_plaintext_c2 Create hunting rule
Author:	cip
Description:	Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	malware_Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	MALWARE_Win_AgentTeslaV2 Create hunting rule
Author:	ditekSHen
Description:	AgenetTesla Type 2 Keylogger payload

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

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:	Windows_Generic_Threat_808f680e Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_AgentTesla_ebf431a8 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

No further information available

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