MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21fca45c0c0580eb074d8600808520723148c0c0dbd4e3d04c4edd21ff876863. 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: 15


Intelligence 15 IOCs YARA 17 File information Comments

SHA256 hash: 21fca45c0c0580eb074d8600808520723148c0c0dbd4e3d04c4edd21ff876863
SHA3-384 hash: e9c759a973fd96ec9678e3cae420d5aff383c1488d92989e08e79b383b6980164dca135b579b1f73b2df8e2f7cc8b911
SHA1 hash: 3d2e3caa9e7b2824944a0b6dfd6bc6e0380a39d1
MD5 hash: 0aacf372896b1a9a3ee7434ec9459f4f
humanhash: five-nine-finch-mississippi
File name:ThreatHunterAssessmentTool.exe
Download: download sample
Signature AgentTesla
File size:186'880 bytes
First seen:2023-10-02 19:51:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:9YNUl3TUrtVkH+LGP34oHKerVUzeeDXbwa21D59ua/aHyvZRsd2iH:9YNu3TULJbwv
Threatray 57 similar samples on MalwareBazaar
TLSH T1FE04074977F44906F9BE6B3248B14C5963B0E4925923EB0D4FC284E95F337808D9BBA7
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter stealerkiller
Tags:AgentTesla exe RAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
349
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
ThreatHunterAssessmentTool.exe
Verdict:
Malicious activity
Analysis date:
2023-10-02 20:00:30 UTC
Tags:
evasion agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a window
Sending a custom TCP request
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Moving of the original file
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control fingerprint fingerprint infostealer lolbin packed packed replace shell32 stealer stealer
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Agent Tesla, AgentTesla
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to capture screen (.Net source)
Detected Agent Tesla keylogger
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Moves itself to temp directory
Multi AV Scanner detection for submitted file
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 Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2023-10-02 19:52:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 21 (100.00%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection spyware stealer
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
outlook_office_path
outlook_win_path
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
21fca45c0c0580eb074d8600808520723148c0c0dbd4e3d04c4edd21ff876863
MD5 hash:
0aacf372896b1a9a3ee7434ec9459f4f
SHA1 hash:
3d2e3caa9e7b2824944a0b6dfd6bc6e0380a39d1
Detections:
win_agent_tesla_g1
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:AgentTesla
Author:kevoreilly
Description:AgentTesla Payload
Rule name:AgentTeslaV2
Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTesla_mod_tough_mem
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:agent_tesla
Author:Stormshield
Description:Detecting HTML strings used by Agent Tesla malware
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_AgentTeslaV2
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETDLLMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

AgentTesla

Executable exe 21fca45c0c0580eb074d8600808520723148c0c0dbd4e3d04c4edd21ff876863

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via web download

Comments