MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15a8bd5b4fa088cd06bacf4dd11ec0616f83a97a139c9ef5d9d9be3d08e0e06a. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 15a8bd5b4fa088cd06bacf4dd11ec0616f83a97a139c9ef5d9d9be3d08e0e06a
SHA3-384 hash: 122b2da024c3665ffd5a9e5b56df0a350ec8f48652e8cc39782da35ef851673a775f54a333d012aac8bd319237d6b96e
SHA1 hash: af30518a3afb2b56b7ccf3eb1fa1ef8d157490af
MD5 hash: 7fc71a4eae14bdc35a7f7e6c978de894
humanhash: washington-friend-tennessee-triple
File name:Quotation DOC-0019282.exe
Download: download sample
Signature AgentTesla
File size:526'848 bytes
First seen:2020-08-05 08:48:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:H3A1oU26mER5TClFVVVPT8vi291JpT24ZWnfzl1IVZQLv:H30860llpIKWF2mWB1IVZQLv
Threatray 10'693 similar samples on MalwareBazaar
TLSH 23B4AE4E2680D16DF86A1DBADC3964F39D20FC5FC916E04F60F23D2471BAB4AA911F61
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: 163.com
Sending IP: 95.211.208.25
From: Jing Chen <chenjing19827@163.com>
Subject: Company Profile : Quotation Inquiry
Attachment: Quotation DOC-0019282.pdf.gz (contains "Quotation DOC-0019282.exe")

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

Intelligence


File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
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 dropped file
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: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-05 01:55:29 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
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
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 15a8bd5b4fa088cd06bacf4dd11ec0616f83a97a139c9ef5d9d9be3d08e0e06a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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