MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb50faa852bc2917ace3552b02c754c91872d0892e247f51a1e48336e598d6ef. 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: 18


Intelligence 18 IOCs YARA 8 File information Comments

SHA256 hash: fb50faa852bc2917ace3552b02c754c91872d0892e247f51a1e48336e598d6ef
SHA3-384 hash: 8cfd8a7be94074c6b8c097d0853a82b0603ac0e5b55fa9466689471c3923fe521e2ea2461a3796d8ae22cd4ed699a1ac
SHA1 hash: 67049a945d9abe37fdc71e5b4ae7d541c33218bb
MD5 hash: d70683780b9787eb94a4d6139d21237c
humanhash: cold-jersey-blossom-purple
File name:May PO.exe
Download: download sample
Signature AgentTesla
File size:412'160 bytes
First seen:2025-05-08 13:11:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:/hBYMNZkBSjOkUU570V5VadBj4ingZhIFIIaZr5Bh3ZlVO9KxdPJv71/PfdSH:/hBUBSb70jVS4Wc7DlV4KJvh/Pf
Threatray 3'582 similar samples on MalwareBazaar
TLSH T13894C07F73956F51EA3C4BB480F3A22003FAE65BA332DA853E5400E60D927599F4D786
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
618
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
MayPO.exe
Verdict:
Malicious activity
Analysis date:
2025-05-08 13:14:54 UTC
Tags:
netreactor stealer ultravnc rmm-tool exfiltration smtp agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
95.7%
Tags:
dropper virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor obfuscated obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
RiskWare[Obfuscator]/MSIL.Reactor
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
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)
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
Yara detected AntiVM3
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2025-05-08 08:16:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 37 (72.97%)
Threat level:
  5/5
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
AgentTesla
Agenttesla family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
fb50faa852bc2917ace3552b02c754c91872d0892e247f51a1e48336e598d6ef
MD5 hash:
d70683780b9787eb94a4d6139d21237c
SHA1 hash:
67049a945d9abe37fdc71e5b4ae7d541c33218bb
SH256 hash:
3ab8e06e458cdd2ef640dafcf326f52af0e19dabdc50948751c13bd4b6f2d6b6
MD5 hash:
595a270e52ae8005d7e810d8217b44b3
SHA1 hash:
20ace14c3127770bc181be6aaaff877ec6efc632
Detections:
win_agent_tesla_g2 AgentTesla 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
SH256 hash:
66f2962b8779760e895983e5dd73fadc824de9725e13db5b181d7824250f36da
MD5 hash:
cd4f66c4540ed23456f631da51844048
SHA1 hash:
300c405d14c7d393c6ddba811b374b6dc0f58fd0
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
3fe966e21625f83eccdcc49762305a16e6c488397b4e08a98e1be48d93c3a571
MD5 hash:
884c22791622cbd6edc8ad0dfcea87f2
SHA1 hash:
8b2b539c86f49597a05a289fda4ac27b2fd1c177
Detections:
SUSP_OBF_NET_Reactor_Indicators_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:DotNet_Reactor
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:Lumma_Stealer_Detection
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:PureCrypter
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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.

Malspam

AgentTesla

Executable exe fb50faa852bc2917ace3552b02c754c91872d0892e247f51a1e48336e598d6ef

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments