MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d250e11368c9d3d7d9caa0d17af9580377d07f80bb2df5728e10148901582d08. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash: d250e11368c9d3d7d9caa0d17af9580377d07f80bb2df5728e10148901582d08
SHA3-384 hash: f1c4ec25cedc345b3e809e775939963eb9943b0308e665823f8c5394503451b55f484673b8d9fc40b9116164fca3d040
SHA1 hash: 7405af8cb2970f7a66aefdd46200070eaa3728c1
MD5 hash: dbc080645f8bcb48256742d1d9088b41
humanhash: stream-robert-floor-magazine
File name:filesss.exe
Download: download sample
Signature AgentTesla
File size:797'696 bytes
First seen:2020-08-14 14:56:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d244fe4d351a3cdd4f1c2ebd1ddbf641 (5 x AgentTesla, 2 x Loki)
ssdeep 24576:P7vqbZzuihDozTmUfzLIiDZ8nSmm2BYfvn:P7vo1olt8pBBYHn
Threatray 11'212 similar samples on MalwareBazaar
TLSH E905AE62A2E04B37C1A7163F9C7B87A4E839FE5DEA6459472BF71C4C5F392803426193
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.sekawan.com
Sending IP: 45.251.72.199
From: Shaikh Jaffar <055077@sekawan.com>
Subject: RE: AMTEC INC. 2020 Order/RFQ
Attachment: AMTEC INC. 2020 Order ~ RFQ.img (contains "filesss.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
74
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:
100 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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 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:
Win32.Backdoor.NanoCore
Status:
Malicious
First seen:
2020-08-14 14:58:11 UTC
AV detection:
25 of 29 (86.21%)
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 data files stored by FTP clients
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 d250e11368c9d3d7d9caa0d17af9580377d07f80bb2df5728e10148901582d08

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments