MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d. 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


Intelligence 10 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d
SHA3-384 hash: 9bca04d37e5b2c60d04d6607f9e2b5b353cb8af900b51697f65e8be8ffb1355e03315a67de6c2cbe977b32f745594892
SHA1 hash: c49651b899263a023db721341f2a4dd04af98ce6
MD5 hash: 2fc0921b7f9643f4820376431b2ab50c
humanhash: island-jig-uniform-india
File name:4awfz5.zip
Download: download sample
Signature AgentTesla
Create hunting rule
File size:338'224 bytes
First seen:2025-10-16 06:16:17 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 6144:gTh9z07skHR3lAgd3bMhadY/ggAxuw8u2GK6rcnNqyS2Ws2P8HBuwQQNXpDAzr6B:gN9zbmN2gNAFWEJ6rcNZS2WhP8H00XkY
TLSH T1B67423D52312B344F7E3A7F9CA7A739354D685741A0A89E18ADF3D4330193C68C58EEA
Magika zip
Reporter JAMESWT_WT
Tags:AgentTesla ftp-haliza-com-my zip

Intelligence

File Origin
# of uploads :
1
# of downloads :
128
Origin country :
IT IT
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:STEINNNNOS.exe
File size:355'840 bytes
SHA256 hash: 3249cbb032d6aaf66c01aaddc48eab91417b1f22b97ddb659f2f5a5a5683bfb3
MD5 hash: 170ff632f45da6da24d1dca9407abd1c
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f08dcb97a16d00a8da72c2
Tags:
virus micro msil
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 crypto_obfuscator obfuscated obfuscated packed packed
Link:
https://www.filescan.io/uploads/68f08dcb057c46a471ceb44a/reports/4022c08d-523f-40ad-9529-b86ed1a95728/overview
Verdict:
Suspicious
Labled as:
Trojan.Kryptik
Link:
https://www.hybrid-analysis.com/sample/b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d
Verdict:
Malicious
File Type:
zip
First seen:
2025-10-16T02:45:00Z UTC
Last seen:
2025-10-16T10:14:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 1.00 Zip Archive
Link:
https://app.malva.re/file/2fc0921b7f9643f4820376431b2ab50c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Suspicious
First seen:
2025-10-16 06:16:34 UTC
File Type:
Binary (Archive)
Extracted files:
2
AV detection:
26 of 37 (70.27%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wx765d2rich5fbvyf64xx6dsgovksol5railpdzgzfzcjeosyroq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/251016-hfmrkahz6h/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AlphaCrypt
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d

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
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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
Rule name:win_agent_tesla_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>

File information

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

Web download

AgentTesla

zip b5ffee8f51408fd286b82fb97bf87233aaa9397d8810b78f26c9722491d2c45d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3679245/
  
Delivery method
Distributed via web download

Comments