MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3635e26f70dfb1240a5f8c7b09ea634ee9e5b6692cb73829b0124c0b2505281. 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: f3635e26f70dfb1240a5f8c7b09ea634ee9e5b6692cb73829b0124c0b2505281
SHA3-384 hash: fe594098af69d302d09ce973de30baaa720b9193e56c01708056cc458c83eeb7fb03e7c55d79f4f062317baf4a7255c9
SHA1 hash: 5eb7303306bbb41debbebca5c7c2e91f6cb0d57d
MD5 hash: a00d5eed9c1137d9413b3940ff655569
humanhash: xray-iowa-uncle-freddie
File name:Past Due Invoice.exe
Download: download sample
Signature AgentTesla
File size:526'512 bytes
First seen:2020-08-15 09:59:09 UTC
Last seen:2020-08-15 10:34:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:3o9FKKEkvMcsghvgi68w/yTY461KjDkP2se2mTL/BbO:3iAKEcY8w/yl66DBLbO
Threatray 10'562 similar samples on MalwareBazaar
TLSH 6FB4E17EBB844F01D69D197DD1E7983407E3BE836232D2857E089ACA2F417649D8A3CD
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.bengiamein.gq
Sending IP: 5.8.93.20
From: Vickie Ingrassellino <admin@bengiamein.gq>
Subject: Past Due Invoice Unpaid
Attachment: Past Due Invoice.rar (contains "Past Due Invoice.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Adding an access-denied ACE
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Moving of the original file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Creates an undocumented autostart registry key
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Moves itself to temp directory
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Status:
Malicious
First seen:
2020-08-15 08:49:11 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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 f3635e26f70dfb1240a5f8c7b09ea634ee9e5b6692cb73829b0124c0b2505281

(this sample)

  
Delivery method
Distributed via e-mail attachment

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