MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57f8a8b81cb321c1a8c1f8f65c8e9dc453a1f18c008fba870fe10f74aeb9a06a. 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 23 File information Comments

SHA256 hash: 57f8a8b81cb321c1a8c1f8f65c8e9dc453a1f18c008fba870fe10f74aeb9a06a
SHA3-384 hash: 2ebda809dd49a61d409e385be584557d27e342ebd4aee6391c8699f8aa418577dd19f0e5ccf52629f0be3d594792bdd8
SHA1 hash: 2d1129778be90355ec0b4dc477651a27d574b0be
MD5 hash: 5d5f6e7e73465c4d7dea9291d51154d3
humanhash: virginia-vermont-eleven-fix
File name:57f8a8b81cb321c1a8c1f8f65c8e9dc453a1f18c008fba870fe10f74aeb9a06a
Download: download sample
Signature AgentTesla
File size:685'568 bytes
First seen:2026-02-05 14:59:13 UTC
Last seen:2026-02-05 15:25:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'793 x AgentTesla, 19'692 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 12288:/MoA11DCFbVcOawwoNLPlZc9kaw3nCwJRWx0IR1Hok0DmW6mTwjhZIHB:/MoA1KiEw9kN6x/zoPnghZo
Threatray 3'316 similar samples on MalwareBazaar
TLSH T118E4015037759B12E9B69BF156B2D2310BBA3D8E5A20D3088EEA5CDF307AF541950F23
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
78
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
57f8a8b81cb321c1a8c1f8f65c8e9dc453a1f18c008fba870fe10f74aeb9a06a
Verdict:
Malicious activity
Analysis date:
2026-02-05 15:32:18 UTC
Tags:
agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
virus micro lien msil
Result
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-09T04:59:00Z UTC
Last seen:
2026-02-05T05:17:00Z UTC
Hits:
~1000
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.29 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2026-01-09 07:47:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
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
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Agenttesla family
Unpacked files
SH256 hash:
57f8a8b81cb321c1a8c1f8f65c8e9dc453a1f18c008fba870fe10f74aeb9a06a
MD5 hash:
5d5f6e7e73465c4d7dea9291d51154d3
SHA1 hash:
2d1129778be90355ec0b4dc477651a27d574b0be
SH256 hash:
4778b77c5c543e7bca9173becb5b811ebfff3cb35238a934664f9571c3e17a8c
MD5 hash:
3370f9b232249d2c63bfc28f181695c5
SHA1 hash:
1cbebb49fd4ebb1110eaa173fb258336dec808c8
SH256 hash:
e31e8cd9ccb261b87d33124fa865ac23c028f10c2654a1a85571f48acd20139c
MD5 hash:
2210e4747b1439c4ed8a852001ec38d8
SHA1 hash:
a1060c238e841a2edc0bd3dc9f41947e1e2fb06f
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
9872f08e357ee6d38efa8fc86cfd954ab60c22fe48948f095652d80e96d546e3
MD5 hash:
65e06e8ace98a2528217d8fed448bfe3
SHA1 hash:
ea389a6f189f3bfbeb3e67d8f8d406357e5bb5e4
Detections:
win_agent_tesla_g2 Agenttesla_type2 INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL 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
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:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
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:Windows_Generic_Threat_779cf969
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