MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a57d6c8a7921154096bc2a4ef475955ebb74561e812ff12aa4e8ad509745a7d1. 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: 19


Intelligence 19 IOCs YARA 22 File information Comments

SHA256 hash: a57d6c8a7921154096bc2a4ef475955ebb74561e812ff12aa4e8ad509745a7d1
SHA3-384 hash: 1859b444ddb0d4468f2c784fddb2f08456002ac92d1fc3896a503fad5faadf266cb45419272a697a58bc96d0a6e50eeb
SHA1 hash: d7ae66ec7d85c24e55de5f43da8a877715617e52
MD5 hash: 949feb2886cf43078b2d661f5cad96cc
humanhash: diet-alpha-west-beryllium
File name:a57d6c8a7921154096bc2a4ef475955ebb74561e812ff12aa4e8ad509745a7d1
Download: download sample
Signature AgentTesla
File size:301'056 bytes
First seen:2026-02-17 09:18:58 UTC
Last seen:2026-02-17 10:29:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'131 x AgentTesla, 20'159 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 6144:xkQJNawgOEFuGSsI9yrz6BCJWmVAjsJG1WPiGLauW:yQ7abOE9SsWa6BgPVOV+nW
Threatray 3'614 similar samples on MalwareBazaar
TLSH T1D754F1352F66C63FCF4C92B1F8D1033903BD86EA7211EAD29662B94A3E1B75191914F3
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 JAMESWT_WT
Tags:AgentTesla exe ftp-holzbrenzii-com

Intelligence


File Origin
# of uploads :
2
# of downloads :
226
Origin country :
IT IT
Vendor Threat Intelligence
No detections
Malware family:
agenttesla
ID:
1
File name:
a57d6c8a7921154096bc2a4ef475955ebb74561e812ff12aa4e8ad509745a7d1
Verdict:
Malicious activity
Analysis date:
2026-02-17 09:20:12 UTC
Tags:
stealer ultravnc rmm-tool evasion agenttesla exfiltration ftp

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
agenttesla lien
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
agenttesla packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-23T05:41:00Z UTC
Last seen:
2026-02-11T09:33:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agensla.sb HEUR:Trojan-PSW.MSIL.Agensla.gen Trojan-Spy.Stealer.FTP.C&C Trojan-PSW.Agensla.TCP.C&C PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Disco.sb Trojan-PSW.MSIL.Agensla.g Trojan-PSW.MSIL.Agensla.d Trojan.MSIL.Inject.sb HEUR:Trojan-Spy.MSIL.Agent.sb
Gathering data
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2025-12-23 08:27:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
24 of 36 (66.67%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
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
AgentTesla
Agenttesla family
Unpacked files
SH256 hash:
a57d6c8a7921154096bc2a4ef475955ebb74561e812ff12aa4e8ad509745a7d1
MD5 hash:
949feb2886cf43078b2d661f5cad96cc
SHA1 hash:
d7ae66ec7d85c24e55de5f43da8a877715617e52
SH256 hash:
23f44bfb503aecff7ee5862f7ea2e0df70f019518086baa6ab8848c333b22523
MD5 hash:
a4c46181894b01236cdce9998484f3ca
SHA1 hash:
67204fa087d2b397bc24bfe5fd7f7f365b3f8832
Detections:
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 MALWARE_Win_AgentTeslaV2
SH256 hash:
557758ed0a067f3892786b7de6f5a5dca0d99004fcd39c6b736816f8f5e7000e
MD5 hash:
bad7eec86feaa0e98e623b80ef657e14
SHA1 hash:
da0bde69704e11bbde6ad8ff031862b76c5c96ea
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTeslaV2
Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MALWARE_Win_AgentTeslaV2
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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)
Rule name:telebot_framework
Author:vietdx.mb
Rule name:Windows_Generic_Threat_808f680e
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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.

Comments