MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ef74b6463840fce135b1b38b7f1dfdf88954105a2b270603b289bbc3c3f9002. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments

SHA256 hash: 3ef74b6463840fce135b1b38b7f1dfdf88954105a2b270603b289bbc3c3f9002
SHA3-384 hash: 6b6db8712e1b83cd6a6ffdd7857c0713ad2f67eff4f86516006dfe7dd7e4f8d7ef61cc109b4c3959410c5dae1946d380
SHA1 hash: c82dcf4920c5db1f3178c86c42ea0c00a1676387
MD5 hash: 8363557176af3185d1d9d7a786d45da2
humanhash: saturn-crazy-happy-orange
File name:8363557176af3185d1d9d7a786d45da2.exe
Download: download sample
Signature AgentTesla
File size:931'328 bytes
First seen:2021-08-09 18:41:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 24576:coR6qgSD/7iCZ3exdG7ssq5gsC0nIOMyz:Ps7XXOsz/IOMa
Threatray 8'245 similar samples on MalwareBazaar
TLSH T193158C2229EF155DF3B39B760FC4F8AE56EAE5735B1AB0F638910B468322940CD51336
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
smtppro.zoho.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8363557176af3185d1d9d7a786d45da2.exe
Verdict:
Malicious activity
Analysis date:
2021-08-09 18:45:39 UTC
Tags:
n/a

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

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a file in the Windows directory
Modifying an executable file
Creating a file
Creating a window
Sending a UDP request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the shell\open\command registry branches
Unauthorized injection to a recently created process by context flags manipulation
Infecting executable files
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:
AgentTesla Neshta
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops PE files with a suspicious file extension
Found malware configuration
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Neshta
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 462013 Sample: wVdurpHHFa.exe Startdate: 09/08/2021 Architecture: WINDOWS Score: 100 28 Found malware configuration 2->28 30 Antivirus detection for dropped file 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 9 other signatures 2->34 7 wVdurpHHFa.exe 4 2->7         started        process3 file4 18 C:\Windows\svchost.com, PE32 7->18 dropped 20 C:\Users\user\AppData\Local\...\setup.exe, PE32 7->20 dropped 22 C:\Users\user\AppData\...\wVdurpHHFa.exe, PE32 7->22 dropped 24 107 other malicious files 7->24 dropped 36 Creates an undocumented autostart registry key 7->36 38 Drops PE files with a suspicious file extension 7->38 40 Drops executable to a common third party application directory 7->40 42 Infects executable files (exe, dll, sys, html) 7->42 11 wVdurpHHFa.exe 3 7->11         started        signatures5 process6 file7 26 C:\Users\user\AppData\...\wVdurpHHFa.exe.log, ASCII 11->26 dropped 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->46 48 Injects a PE file into a foreign processes 11->48 15 wVdurpHHFa.exe 2 11->15         started        signatures8 process9 signatures10 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->50 52 Tries to steal Mail credentials (via file access) 15->52 54 Tries to harvest and steal ftp login credentials 15->54 56 Tries to harvest and steal browser information (history, passwords, etc) 15->56
Threat name:
Win32.Virus.Neshta
Status:
Malicious
First seen:
2021-08-09 18:42:10 UTC
AV detection:
45 of 46 (97.83%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla Payload
AgentTesla
Modifies system executable filetype association
Unpacked files
SH256 hash:
3ef74b6463840fce135b1b38b7f1dfdf88954105a2b270603b289bbc3c3f9002
MD5 hash:
8363557176af3185d1d9d7a786d45da2
SHA1 hash:
c82dcf4920c5db1f3178c86c42ea0c00a1676387
Malware family:
Agent Tesla v3
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:MAL_Neshta_Generic
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Web download

AgentTesla

Executable exe 3ef74b6463840fce135b1b38b7f1dfdf88954105a2b270603b289bbc3c3f9002

(this sample)

  
Delivery method
Distributed via web download

Comments