MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf6685f531efdf06db86ed0e735fcbe612858213677111ad900a02164cd77efd. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: bf6685f531efdf06db86ed0e735fcbe612858213677111ad900a02164cd77efd
SHA3-384 hash: a70c80ed962a4f0d4b6c2943604db0c27d40704371d8abec345e70e3d8ed1983f3926734f872222c7d646552e6f4b388
SHA1 hash: cd1b135f319883d9425875d80a5fca2558b390ce
MD5 hash: ec0cf91a95ae7a7ea9cd228ea78c516a
humanhash: pennsylvania-salami-paris-music
File name:ec0cf91a95ae7a7ea9cd228ea78c516a.exe
Download: download sample
Signature AgentTesla
File size:1'033'728 bytes
First seen:2020-09-11 12:17:55 UTC
Last seen:2020-09-11 12:47:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:aFx9oD40rY6REiKfe7SOWfUlD87s1HnB:AoD1rYuaeVblg7s1H
Threatray 9'135 similar samples on MalwareBazaar
TLSH 7825CF1036A94B16D0B47FF0046A70947BB53D946825FE4F2EC57ADF2A33B82A2D1637
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Reading critical registry keys
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284484 Sample: H1LdLyoahd.exe Startdate: 11/09/2020 Architecture: WINDOWS Score: 100 31 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->31 33 Found malware configuration 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 4 other signatures 2->37 6 ld.exe 3 2->6         started        9 H1LdLyoahd.exe 3 2->9         started        12 ld.exe 2 2->12         started        process3 file4 39 Multi AV Scanner detection for dropped file 6->39 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->41 43 Machine Learning detection for dropped file 6->43 14 ld.exe 2 6->14         started        25 C:\Users\user\AppData\...\H1LdLyoahd.exe.log, ASCII 9->25 dropped 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->45 47 Injects a PE file into a foreign processes 9->47 18 H1LdLyoahd.exe 2 5 9->18         started        signatures5 process6 dnsIp7 27 192.168.2.1 unknown unknown 14->27 49 Tries to harvest and steal ftp login credentials 14->49 51 Tries to harvest and steal browser information (history, passwords, etc) 14->51 53 Installs a global keyboard hook 14->53 29 bh-58.webhostbox.net 199.79.63.24, 49728, 49731, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->29 21 C:\Users\user\AppData\Local\Temp\ld\ld.exe, PE32 18->21 dropped 23 C:\Users\user\...\ld.exe:Zone.Identifier, ASCII 18->23 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->55 57 Tries to steal Mail credentials (via file access) 18->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 file8 signatures9
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-09-11 12:19:06 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
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 bf6685f531efdf06db86ed0e735fcbe612858213677111ad900a02164cd77efd

(this sample)

  
Delivery method
Distributed via web download

Comments