MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e. 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 5 File information Comments

SHA256 hash:	40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e
SHA3-384 hash:	a539813ecd976f1c8b883957fd560fc0cc4be38201e628935801529efbb36c2361e5a234e31f587ef5ab2fb9b0438e51
SHA1 hash:	a9dd1cfbebc1af282ee22f25f589e5c779f08bee
MD5 hash:	2ddcd39d1ac55483abf0afa6252236f2
humanhash:	gee-romeo-victor-princess
File name:	Factura de pago.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	966'696 bytes
First seen:	2025-05-07 15:37:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	3e2a6ecfffc5d43a7565ef87874e92c4 (49 x LummaStealer, 13 x Vidar, 3 x Stealc)
ssdeep	12288:KzpkncANLF4f2651PBmMdiq9daL5+FYzVDKloeLMdiq9daL5+FYzVDKloezEO:KzpkcOCVndiq9dq5GAdiq9dq5GDt
TLSH	T15B25BE946AA120D7F93B00B6C8B0B545E86DB835DBA18FF70250CB322495BD75EE43F9
TrID	63.5% (.EXE) Win64 Executable (generic) (10522/11/4) 12.2% (.EXE) OS/2 Executable (generic) (2029/13) 12.0% (.EXE) Generic Win/DOS Executable (2002/3) 12.0% (.EXE) DOS Executable Generic (2000/1)
Magika	pebin
Reporter	abuse_ch
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

471

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

Factura de pago.exe

Verdict:

Malicious activity

Analysis date:

2025-05-07 15:42:40 UTC

Tags:

stealer exfiltration smtp ultravnc rmm-tool agenttesla

Link:

https://app.any.run/tasks/eff6e3bc-fd22-44ba-953a-a97b601e426a

Note:

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

Detection(s):

SecuriteInfo.com.Win64.MalwareX-gen.20121.4549.UNOFFICIAL

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=681b7e876c95617a27b5d08d

Tags:

n/a

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a process

Using the Windows Management Instrumentation requests

Reading critical registry keys

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Creating a window

Stealing user critical data

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

fingerprint invalid-signature masquerade microsoft_visual_cc packed packed packer_detected signed

Link:

https://www.filescan.io/uploads/681b7e380b64e174c41c2a19/reports/87aa64bd-2d30-497b-9dd1-c6234f5b73b1/overview

Verdict:

Malicious

Labled as:

Lazy.Generic

Link:

https://www.hybrid-analysis.com/sample/40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/430b0d5c-827b-4555-a39f-51a20469cdfd

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

spre.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1683416

Signature

Allocates memory in foreign processes

Found malware configuration

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)

Sigma detected: MSBuild connects to smtp port

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)

Writes to foreign memory regions

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e/

Threat name:

Win64.Trojan.AgentTesla

Status:

Malicious

First seen:

2025-05-07 15:37:38 UTC

File Type:

PE+ (Exe)

AV detection:

24 of 37 (64.86%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=iazu2th6vcsnefhk2cvnqbc6xiz246tz63dsu2aedo754h4tz6ha._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla discovery keylogger spyware stealer trojan

Link:

https://tria.ge/reports/250507-s2nwvscp3t/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

AgentTesla

Agenttesla family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/868921c0-96eb-4133-9e51-03f4dca424bc

Unpacked files

SH256 hash:

40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e

MD5 hash:

2ddcd39d1ac55483abf0afa6252236f2

SHA1 hash:

a9dd1cfbebc1af282ee22f25f589e5c779f08bee

Link:

https://www.unpac.me/results/bfff447d-13d1-4bce-890b-30610271b76c/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.55

Link:

https://yomi.yoroi.company/submissions/40334d4cfea8a4d214ead0aad8045eba33ae7a79f6c72a68041bbfde1f93cf8e

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:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

No further information available

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileA KERNEL32.dll::CreateFileW

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