MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff5afb7b67430f6d74bd53f608e28853a5035667051371bab755e4e94477c8c9. 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: ff5afb7b67430f6d74bd53f608e28853a5035667051371bab755e4e94477c8c9
SHA3-384 hash: 38bfe741acea41fe4fdab60be4db61eb15e59b7aa8ee3e76983bb12a7ad6cfa0c680306347ee4474351cb802e8f97790
SHA1 hash: b25b86fda4e8ba9d890c1ea2bb8104aac1e8ab33
MD5 hash: db3438e33a8c30e3fb22e94fef133cee
humanhash: india-high-florida-texas
File name:Payment.exe
Download: download sample
Signature AgentTesla
File size:1'147'904 bytes
First seen:2020-08-30 08:54:33 UTC
Last seen:2020-08-30 09:52:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:ISHVwUZZghDHWssOQcvSmvrg3MJzTdLTUMnCyLS5Dd:RVwUZKhyspLVry0Red
Threatray 9'521 similar samples on MalwareBazaar
TLSH C835E04D3715ABAEC906F97959908C7CE5312963D73AE282DCC32DA97D0D28FDA081D3
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Reading critical registry keys
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Stealing user critical data
Enabling autorun by creating a file
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)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279647 Sample: Payment.exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Multi AV Scanner detection for dropped file 2->55 57 Sigma detected: Scheduled temp file as task from temp location 2->57 59 8 other signatures 2->59 7 Payment.exe 7 2->7         started        11 YYtJku.exe 5 2->11         started        14 YYtJku.exe 2->14         started        process3 dnsIp4 37 C:\Users\user\AppData\Roaming\sGyCsfc.exe, PE32 7->37 dropped 39 C:\Users\user\...\sGyCsfc.exe:Zone.Identifier, ASCII 7->39 dropped 41 C:\Users\user\AppData\Local\...\tmpEFCF.tmp, XML 7->41 dropped 43 C:\Users\user\AppData\...\Payment.exe.log, ASCII 7->43 dropped 73 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->73 75 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->75 77 Injects a PE file into a foreign processes 7->77 16 Payment.exe 2 5 7->16         started        21 schtasks.exe 1 7->21         started        51 192.168.2.1 unknown unknown 11->51 79 Multi AV Scanner detection for dropped file 11->79 81 Machine Learning detection for dropped file 11->81 23 YYtJku.exe 2 11->23         started        25 schtasks.exe 1 11->25         started        27 YYtJku.exe 11->27         started        file5 signatures6 process7 dnsIp8 45 flsrnidth.com 66.70.204.222, 49717, 49729, 587 OVHFR Canada 16->45 47 mail.flsrnidth.com 16->47 33 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 16->33 dropped 35 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 16->35 dropped 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->61 63 Moves itself to temp directory 16->63 65 Tries to steal Mail credentials (via file access) 16->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->67 29 conhost.exe 21->29         started        49 mail.flsrnidth.com 23->49 69 Tries to harvest and steal ftp login credentials 23->69 71 Tries to harvest and steal browser information (history, passwords, etc) 23->71 31 conhost.exe 25->31         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-29 04:07:05 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
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.

Malspam

AgentTesla

Executable exe ff5afb7b67430f6d74bd53f608e28853a5035667051371bab755e4e94477c8c9

(this sample)

  
Delivery method
Distributed via e-mail attachment

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