MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 659cae123fddea653c5ca19e452e809bedb01e283b442dff20f0f5e674a35b1c. 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: 659cae123fddea653c5ca19e452e809bedb01e283b442dff20f0f5e674a35b1c
SHA3-384 hash: c4be5adf4c5aa045e268c40b657e3a6f94d71cda0780f9b445713fd0b6c56caeaacd7c9d5fc0fc2566719d13d52c0d63
SHA1 hash: a5deea5c7f3908a7b4e4e7edeea8675796c8bb5c
MD5 hash: 5277d5a5515ef72c426b650ede2c95f8
humanhash: cola-dakota-single-georgia
File name:shedy.exe
Download: download sample
Signature AgentTesla
File size:818'688 bytes
First seen:2020-08-14 08:10:40 UTC
Last seen:2020-08-14 09:02:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 350b996bff3663157f1cefb9e0268400 (6 x AgentTesla, 1 x HawkEye, 1 x Formbook)
ssdeep 24576:N7pAtqydLmhFSm0rPryNMJwXKkQ33DgYW3ikOulP+:N2jdKCJEK3JWykOWP+
Threatray 11'482 similar samples on MalwareBazaar
TLSH 50059E66F2E04833C17616389D1B57789D2EFE102E24AD862FE57D4C9F39EC139252A3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: alkuhaimi.com
Sending IP: 37.48.85.240
From: Komossera <rud-division@alkuhaimi.com>
Subject: INVOICE N ° 014/08/2020
Attachment: INVOICE.IMG (contains "shedy.exe")

AgentTesla SMTP exfil server:
mail.myvfxpro.com:587

Intelligence


File Origin
# of uploads :
4
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Maps a DLL or memory area into another process
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 steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.NanoCore
Status:
Malicious
First seen:
2020-08-14 08:12:08 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
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 659cae123fddea653c5ca19e452e809bedb01e283b442dff20f0f5e674a35b1c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments