MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c14f83aa09c4b45b49bc66096834c964a934f8d171733babb829aaf1f6d579e. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 6c14f83aa09c4b45b49bc66096834c964a934f8d171733babb829aaf1f6d579e
SHA3-384 hash: 23261df49bd3db3ef0ac904ddf0ee25d346d67b2f9450860d70afa7d9c2119193ff951d2916a7bb4fc7047e1d0883e59
SHA1 hash: 941cf70aa531b55771bb0dc439a0a2538359eb60
MD5 hash: 31e6f57633b9b685bd1fa8302f3ea5ea
humanhash: mexico-fish-montana-quiet
File name:31e6f57633b9b685bd1fa8302f3ea5ea.exe
Download: download sample
Signature AgentTesla
File size:581'120 bytes
First seen:2020-07-16 18:38:19 UTC
Last seen:2020-07-16 20:12:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:u+U8y2k4zUea0Hy9szJFUtYKoTEaIqKjcEks3FFlcS0CCKobYfLshMJ:u+U829RYy5P/ksh
Threatray 11'078 similar samples on MalwareBazaar
TLSH ECC48CDC3510758EC90E8D758964ED30A6206C62F7FBE20763D36E9FB93C596DB012A2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
bh-58.webhostbox.net:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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 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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246547 Sample: DFt7krodXg.exe Startdate: 18/07/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected AgentTesla 2->37 39 Machine Learning detection for sample 2->39 6 arinze.exe 3 2->6         started        9 DFt7krodXg.exe 3 2->9         started        12 arinze.exe 2 2->12         started        process3 file4 41 Multi AV Scanner detection for dropped file 6->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->43 45 Machine Learning detection for dropped file 6->45 14 arinze.exe 4 6->14         started        29 C:\Users\user\AppData\...\DFt7krodXg.exe.log, ASCII 9->29 dropped 47 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->47 49 Injects a PE file into a foreign processes 9->49 18 DFt7krodXg.exe 1 7 9->18         started        21 arinze.exe 4 12->21         started        23 arinze.exe 12->23         started        signatures5 process6 dnsIp7 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->51 53 Tries to steal Mail credentials (via file access) 14->53 55 Tries to harvest and steal ftp login credentials 14->55 57 Tries to harvest and steal browser information (history, passwords, etc) 14->57 31 bh-58.webhostbox.net 199.79.63.24, 49716, 49717, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->31 25 C:\Users\user\AppData\Local\...\arinze.exe, PE32 18->25 dropped 27 C:\Users\user\...\arinze.exe:Zone.Identifier, ASCII 18->27 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 61 Installs a global keyboard hook 18->61 file8 signatures9
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-16 16:43:03 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
AgentTesla
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_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


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

Web download

AgentTesla

Executable exe 6c14f83aa09c4b45b49bc66096834c964a934f8d171733babb829aaf1f6d579e

(this sample)

  
Delivery method
Distributed via web download

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