MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0f5a9f39314690159ba90e6e26e7d2810fcfc1e502d2336bf7cc7872b79b848f. 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: 0f5a9f39314690159ba90e6e26e7d2810fcfc1e502d2336bf7cc7872b79b848f
SHA3-384 hash: 598edf52a4189cd4c39af428e2b9943814b4eb2e63413747303fa70b29b417b92d4f7df45c658461078a9cc8866fc4b7
SHA1 hash: 1d455b8a473bde35b562dbf3570aa0ff20f7a59c
MD5 hash: 9526795e344ae95e3e3ad193085a8025
humanhash: alabama-saturn-juliet-black
File name:DHL.pdf.exe
Download: download sample
Signature AgentTesla
File size:701'952 bytes
First seen:2020-07-31 10:12:55 UTC
Last seen:2020-07-31 11:08:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:hRWUOA6+HkILXbpG7NLtLb7qdlMODr7bHKYl8Dnass6t9VjW:h76+HNLXbE99qMCriYl8+63VjW
TLSH 96E4AF86E400685EF8378BB52031DC7473A26DE69EF5EE8A28D13E5336FA093593145F
Reporter @abuse_ch
Tags:AgentTesla DHL exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: dewcon.com
Sending IP: 50.115.112.63
From: DHL | Global | Express <booking@dhl.com>
Subject: DHL Express Booking Confirmation
Attachment: DHL.pdf.exe

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

Intelligence


File Origin
# of uploads :
2
# of downloads :
33
Origin country :
US US
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
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.Ransomware.TeslaCrypt
Status:
Malicious
First seen:
2020-07-31 10:14:06 UTC
AV detection:
18 of 31 (58.06%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Threat name:
Malicious File
Score:
0.71

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 0f5a9f39314690159ba90e6e26e7d2810fcfc1e502d2336bf7cc7872b79b848f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments