MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83. 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: 20

Intelligence 20 IOCs YARA 24 File information Comments

SHA256 hash:	f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83
SHA3-384 hash:	bf18ad237282b953da9d7d18495ebb6c6b734758935dae6d5dc86cc1668351f0a535a58e212a2ff90b838e9d61d596fb
SHA1 hash:	fa7190c31e41676f43bc52a7e5c39e1a1a9ed2c6
MD5 hash:	1fddc82588e2d3bfa197d1ad93d4b95c
humanhash:	artist-asparagus-ohio-nitrogen
File name:	f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	802'816 bytes
First seen:	2026-11-06 14:33:37 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'361 x AgentTesla, 20'867 x Formbook, 12'418 x SnakeKeylogger)
ssdeep	24576:Ot4H/xoc5Es4ZfzhR5OrE5M3hRPotKyg:Lxoc/49FR5Of3hVotH
TLSH	T1BB05F0286A6FDD13C5A9033189E1F27407B56E4DE522C38B9EFA2DDB3922BC549C4353
TrID	73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.6% (.EXE) Win64 Executable (generic) (6522/11/2) 4.5% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika	pebin
Reporter	adrian__luca
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

NETReactor RoboSki

Details

Link:

https://research.acce.ciphertechsolutions.com/results/c1df7f9a-73cc-44b8-bd88-6c9352e19ad7/

Malware family:

agenttesla

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-11-06 15:10:48 UTC

Tags:

rgbloader loader netreactor smtp stealer ultravnc rmm-tool agenttesla

Link:

https://app.any.run/tasks/34a41d16-4ee8-4d7f-8116-245ff2281208

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

AgentTesla

Link:

https://www.capesandbox.com/analysis/97660/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.3656.10667.31230.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6af0f8e31492c978625a1f8c

Tags:

proxy lien

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a custom TCP request

Launching a service

Creating synchronization primitives

Creating a process with a hidden window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

Reading critical registry keys

Changing a file

Blocking the Windows Defender launch

Stealing user critical data

Adding an exclusion to Microsoft Defender

Gathering data

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-09-30T20:00:00Z UTC

Last seen:

2026-11-03T21:57:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/bd3bb67f-8cff-45ed-a032-924a465af128

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1999856

Signature

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

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

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)

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

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)

Yara detected AgentTesla

Yara detected AntiVM3

Behaviour

Behavior Graph:

Download SVG

Verdict:

Malware

YARA:

12 match(es)

Tags:

.Net .Net Obfuscator .Net Reactor Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.58 Win 32 Exe x86

Link:

https://app.malva.re/file/1fddc82588e2d3bfa197d1ad93d4b95c

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2026-09-30 23:39:07 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

27 of 36 (75.00%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6qtt3xfpwwfkq7gbwdaa2k57l7ljhdtespvvkietsny3zpodvwbq._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla collection discovery evasion execution keylogger spyware stealer trojan

Link:

https://tria.ge/reports/261106-rxlehadt4l/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

Enumerates physical storage devices

Reads the TCP/IP host and domain name from the registry

System Location Discovery: System Language Discovery

SmartAssembly .NET packer

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Checks computer location settings

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Command and Scripting Interpreter: PowerShell

Family: AgentTesla

Modifies Windows Defender DisableAntiSpyware settings

Malware Family:

n/a

Verdict:

Malicious

Tags:

injector stealer evasion

YARA:

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://app.threat.zone/submission/48787469-57c6-4ed8-a98f-16570487932d

Malware Family:

msil

Malicious:

True

Tags:

dotnet spreader

Link:

https://intel.virussign.com/intelligence/file/f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83

Unpacked files

SH256 hash:

f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83

MD5 hash:

1fddc82588e2d3bfa197d1ad93d4b95c

SHA1 hash:

fa7190c31e41676f43bc52a7e5c39e1a1a9ed2c6

Detections:

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/faa6fa62-ba3d-46e9-b2d4-792f14f9f832/

SH256 hash:

936bda58a60ecd0e6c4fa27c1d10b44ca880d52afb4e04a4b24b7aba3c9b1d8c

MD5 hash:

c828317c6ee308f53329a9c093442fdf

SHA1 hash:

0fc4c4e4b6ff6b5a00edcdea86b697068ca1e2f4

Detections:

AgentTesla

win_agent_tesla_g2

Agenttesla_type2

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Link:

https://www.unpac.me/results/faa6fa62-ba3d-46e9-b2d4-792f14f9f832/

Parent samples :
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SH256 hash:

e0e5bdc2b498f970d4491e39a229a6c0a01526cba65276bcf27a1696a4e9cc2a

MD5 hash:

69280ec6447046459c6d5de9c3fe4966

SHA1 hash:

8c5fa6969675b9ea44e12a049a458fa32c176e2b

Link:

https://www.unpac.me/results/faa6fa62-ba3d-46e9-b2d4-792f14f9f832/

SH256 hash:

67fcee692b5781c4ac6319d8c7c87153b4f47f0adbb008185676803095cd5e1c

MD5 hash:

875631dc3133ad0deebc419f98ee8606

SHA1 hash:

c529dc1cc5551070019a2f7d45f2285f0fe0a89a

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/faa6fa62-ba3d-46e9-b2d4-792f14f9f832/

Parent samples :
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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/f4273ddcafb58aa87cc1b0c00d2bbf5fd6938e6493eb5520939371bcbdc3ad83

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

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

Rule name:	DotNet_RGB_Embedded_AssemblyLoader_Hunt Create hunting rule
Author:	ShadowOpCode
Description:	Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading

Rule name:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	HUNT_NET_Loader_ImagePixel_To_AssemblyLoad Create hunting rule
Author:	Anish Bogati
Description:	Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.

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:	NET Create hunting rule
Author:	malware-lu

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:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	Windows_Generic_Threat_9f4a80b2 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

Rule name:	WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Derialock (pe, etat extrait)

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

Rule name:	WIN_Sample_Unique_69354b41 Create hunting rule
Author:	Marjoriefort
Description:	Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:	69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

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

Cape

https://www.capesandbox.com/analysis/97660/

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