MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a9f65c36f2f23acdba1e9d4aa7ac525822441e2a7ae14afcf8808dc86f0405c. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments

SHA256 hash: 4a9f65c36f2f23acdba1e9d4aa7ac525822441e2a7ae14afcf8808dc86f0405c
SHA3-384 hash: 141ffeeb1bb852f85c5fc357629b3a13b337b870720bbeef4bfaac38c799163421284cb874b478224df047e2eb343d59
SHA1 hash: 9e91a866058f51d18827db09dc940a621f8be8eb
MD5 hash: 2d6ca1a3e018171a276f5fd9ab8ece43
humanhash: romeo-lemon-quiet-wolfram
File name:WeChat image_20210422104940_PDF.scr
Download: download sample
Signature AgentTesla
File size:21'504 bytes
First seen:2021-04-26 05:33:14 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 384:T31CgkBXb8quxyQvubgAmjPXi480yEEwN1:T37kBXgqOj5zXi480y4
Threatray 4'194 similar samples on MalwareBazaar
TLSH 95A2DD245293741EC15F0CB835BB32017DA37178AC32DDEA2EC9124B29F7A9551FEE85
Reporter abuse_ch
Tags:AgentTesla scr

Intelligence


File Origin
# of uploads :
1
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
WeChat image_20210422104940_PDF.scr
Verdict:
Malicious activity
Analysis date:
2021-04-26 05:37:43 UTC
Tags:
trojan dtloader loader rat agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Adding an access-denied ACE
Sending a UDP request
Creating a window
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Changing the hosts file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Contains functionality to hide a thread from the debugger
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Modifies the hosts file
Multi AV Scanner detection for submitted file
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 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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-04-26 04:20:20 UTC
AV detection:
9 of 47 (19.15%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
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
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
4a9f65c36f2f23acdba1e9d4aa7ac525822441e2a7ae14afcf8808dc86f0405c
MD5 hash:
2d6ca1a3e018171a276f5fd9ab8ece43
SHA1 hash:
9e91a866058f51d18827db09dc940a621f8be8eb
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information


The table below shows additional information about this malware sample such as delivery method and external references.

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