MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d3f8d779214180dbb96f21428064783885225f7afd8dc1d4328c0576c16c4a0. 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 19 File information Comments

SHA256 hash: 8d3f8d779214180dbb96f21428064783885225f7afd8dc1d4328c0576c16c4a0
SHA3-384 hash: 94bacd91560dd74f44cc251fc6a42c59c641c14780e55212fac40b47fe36a046543e53eb5cd1d95e4b19ff2bcbe75903
SHA1 hash: 64d31d44b8639213ef64f58414ed32c9c2f86bf7
MD5 hash: b503da431d908851cc1fffd5e03354e6
humanhash: tennessee-carolina-sad-twelve
File name:b503da431d908851cc1fffd5e03354e6.exe
Download: download sample
Signature AgentTesla
File size:1'011'200 bytes
First seen:2026-03-11 08:01:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'843 x AgentTesla, 19'775 x Formbook, 12'297 x SnakeKeylogger)
ssdeep 24576:nEKLHtvw/UrylY/OQLvFOsYi3KONNCyAY:EKVwcWllQLv0snaOz7R
Threatray 3'592 similar samples on MalwareBazaar
TLSH T1B02502A82566E807C55A4B384D71F67453AD6EEEA401E3636FEDBDEBB871B011C04383
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 abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.real-honesty.com:25

Intelligence


File Origin
# of uploads :
1
# of downloads :
170
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
b503da431d908851cc1fffd5e03354e6.exe
Verdict:
Malicious activity
Analysis date:
2026-03-11 08:04:43 UTC
Tags:
auto-startup stealer ultravnc rmm-tool agenttesla susp-lnk

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
autorun virus micro msil
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Bypasses PowerShell execution policy
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 dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Suspicious powershell command line found
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)
Windows shortcut file (LNK) contains suspicious command line arguments
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1881675 Sample: xzUXZf54Hh.exe Startdate: 11/03/2026 Architecture: WINDOWS Score: 100 31 mail.real-honesty.com 2->31 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 8 other signatures 2->41 8 xzUXZf54Hh.exe 7 2->8         started        12 powershell.exe 15 2->12         started        signatures3 process4 file5 25 C:\Users\user\AppData\...\ChFhvKtRtypSvb.exe, PE32 8->25 dropped 27 C:\...\ChFhvKtRtypSvb.exe:Zone.Identifier, ASCII 8->27 dropped 29 C:\Users\user\AppData\...\xzUXZf54Hh.exe.log, ASCII 8->29 dropped 51 Writes to foreign memory regions 8->51 53 Allocates memory in foreign processes 8->53 55 Injects a PE file into a foreign processes 8->55 14 RegSvcs.exe 2 8->14         started        18 ChFhvKtRtypSvb.exe 5 12->18         started        20 conhost.exe 1 12->20         started        signatures6 process7 dnsIp8 33 mail.real-honesty.com 216.252.238.132, 25 SATLYNX_AGCZ Switzerland 14->33 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->59 61 Tries to steal Mail credentials (via file / registry access) 14->61 63 Multi AV Scanner detection for dropped file 18->63 65 Writes to foreign memory regions 18->65 67 Allocates memory in foreign processes 18->67 69 Injects a PE file into a foreign processes 18->69 22 RegSvcs.exe 2 18->22         started        signatures9 process10 signatures11 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->43 45 Tries to steal Mail credentials (via file / registry access) 22->45 47 Tries to harvest and steal ftp login credentials 22->47 49 Tries to harvest and steal browser information (history, passwords, etc) 22->49
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.25 Win 32 Exe x86
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2026-03-10 19:17:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
25 of 38 (65.79%)
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
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
AgentTesla
Agenttesla family
Unpacked files
SH256 hash:
8d3f8d779214180dbb96f21428064783885225f7afd8dc1d4328c0576c16c4a0
MD5 hash:
b503da431d908851cc1fffd5e03354e6
SHA1 hash:
64d31d44b8639213ef64f58414ed32c9c2f86bf7
SH256 hash:
360405fc78bf7c0c5628333f8fa943ed95e0a1098196a022e068fb85c4535bfa
MD5 hash:
fe0bd40ac5b5bc843fec1cc9d830493d
SHA1 hash:
0216480a1b5f9a397edcc3e0b594e0610c67b330
SH256 hash:
031743eec70f1da39fb1fe83be9f971e09491715b2793024efb34708001eb5a2
MD5 hash:
3fa934eab531a9b48627bdadeb4e7f26
SHA1 hash:
48d1106b779fe1648144a397fdb0d114a664b146
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SH256 hash:
0b979e2c237af5e8cc093d500c77aa87b7c641b1d8ab3d8b0842c9ccfc979dcd
MD5 hash:
2e47adcab1a0c88433b3ad4e113da749
SHA1 hash:
6d2d82313f724b190eb89588999c5c7d11f12f7e
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
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: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: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:Windows_Generic_Threat_9f4a80b2
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.

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