MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 878f02103f87751030fff82340596c9ca4385a2e715b2221724897528bf5d864. 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 File information Yara 3 Comments

SHA256 hash: 878f02103f87751030fff82340596c9ca4385a2e715b2221724897528bf5d864
SHA3-384 hash: 21b13383f4455e02fe6b449ab739f5ea44233f893f8914f245113f6ad1cdcd41ff0a2bd08b718c7e755e64382d3c4275
SHA1 hash: 16955753238aa20fa74a24f6348f9ed292a5d50f
MD5 hash: a59b44139671e2b250c42165ac42b4f7
humanhash: sink-yellow-september-eleven
File name:Factura comercial.pdf.exe
Download: download sample
Signature AgentTesla
File size:782'336 bytes
First seen:2020-07-31 08:25:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:pvCMPVonJ6AShtk5+nqDaicgY6PjwZyqph2r0AjNBq/lr5:0uVonqtk5f/YVZyq/qjN
TLSH FCF4C0047B50E54EC26F8F77DAD45800EDF8E49A8A1BE78B348173BF18CE36A99015B5
Reporter @abuse_ch
Tags:AgentTesla DHL exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: mail.a3p.mx
Sending IP: 66.113.180.183
From: DHL EXPRESS <nancy.franco@dhl.com>
Subject: FW: Su notificación de envío de DHL: 6278216733
Attachment: Factura comercial.pdf.gz (contains "Factura comercial.pdf.exe")

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

Intelligence


File Origin
# of uploads :
1
# of downloads :
34
Origin country :
FR FR
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
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
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)
Sigma detected: Suspicious Double Extension
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-31 08:27:05 UTC
AV detection:
22 of 31 (70.97%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
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:
Kryptik
Score:
1.00

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 878f02103f87751030fff82340596c9ca4385a2e715b2221724897528bf5d864

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments