MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51b758ec870caeca167e24b4e7da08a9628a99ac033823420d3e6ea204ec8e2c. 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 7 File information Yara 3 Comments

SHA256 hash: 51b758ec870caeca167e24b4e7da08a9628a99ac033823420d3e6ea204ec8e2c
SHA3-384 hash: f77f5f7c93067e63f2f6947c42a38c4c9382a0e579fc65a843d564a587e1d040df67159248e024612268ae7b4e8cdaf3
SHA1 hash: f891d472c8c54bd5419208f202cdacb71e17a97c
MD5 hash: 5eda5883dc925b61fb5dd03a86037930
humanhash: rugby-indigo-may-quebec
File name:Convite Do Tribunal.exe
Download: download sample
Signature AgentTesla
File size:442'368 bytes
First seen:2020-07-31 13:24:22 UTC
Last seen:2020-07-31 13:57:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:qF+0fSMpC42xbcz6YTIA+ebWNmaYYh91:o+9kCVc6Y5+JmaYc1
TLSH 2194F16C11A18B56F2688BBF5C3101039F76D42F9211E69B6FB260D11A3EB0C3D92F97
Reporter @abuse_ch
Tags:AgentTesla exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: ns18.onlinebiz.pt
Sending IP: 185.80.220.139
From: ana@court.europa.eu
Subject: Convite Do Tribunal
Attachment: Convite Do Tribunal.zip (contains "Convite Do Tribunal.exe")

AgentTesla SMTP exfil server:
smtp.pharco--corp.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
42
Origin country :
US US
Mail intelligence
Geo location:
IT Italy
Volume:
Low
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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.AgentTesla
Status:
Malicious
First seen:
2020-07-31 13:26:09 UTC
AV detection:
18 of 31 (58.06%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer trojan spyware 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:
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 51b758ec870caeca167e24b4e7da08a9628a99ac033823420d3e6ea204ec8e2c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments