MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a453ccce3dcd1e9b412dbe724af9a04c4f91c994097258f935cf23301156615b. 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


Intelligence 8 File information Yara 3 Comments

SHA256 hash: a453ccce3dcd1e9b412dbe724af9a04c4f91c994097258f935cf23301156615b
SHA3-384 hash: 0b775a85070a061f775fb94e5ef2d54d82172511ad78a76943490328668271b72c1cb47c2f7136ef562cbb3220f69144
SHA1 hash: 5e7976dd454082391f258365aece4a0af91c9940
MD5 hash: 1d0a3add6c6703a3d1ec62e72e17bb92
humanhash: magnesium-zulu-happy-mountain
File name:SUNCOAST-purchase-order.XML.newfile.xls.email.exe
Download: download sample
Signature AgentTesla
File size:486'400 bytes
First seen:2020-07-31 16:06:00 UTC
Last seen:2020-08-04 11:37:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:t7vuf3MOdg9vNGjbnsvRUIRBNYA7tpdOmYF:5vEvUvNibsZryA8H
TLSH BAA4F12D21585B27F26A0BBF6C300113AF6AC41F2621E657AFB521DA15BDB0C7E50F53
Reporter @abuse_ch
Tags:AgentTesla exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: suncoastmarketing.com
Sending IP: 23.159.176.84
From: Silvia Brull <purchases@suncoastmarketing.com>
Reply-To: Silvia Brull <purchases@suncoastmarketing.com>
Subject: FW: Purchase order
Attachment: SUNCOAST-purchase-order.XML.newfile.xls.email.zip (contains "SUNCOAST-purchase-order.XML.newfile.xls.email.exe")

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

Intelligence


File Origin
# of uploads :
8
# of downloads :
52
Origin country :
FR FR
Mail intelligence
Geo location:
CH Switzerland
Volume:
Low
Geo location:
IT Italy
Volume:
Low
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
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
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-31 16:07:08 UTC
AV detection:
24 of 31 (77.42%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Threat name:
Suspicious File
Score:
0.45

Yara Signatures


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 a453ccce3dcd1e9b412dbe724af9a04c4f91c994097258f935cf23301156615b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments