MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3665a41374b9b77f594fe118728ff5ffbd741aa6a7534088b4940d0f4f1015da. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 3665a41374b9b77f594fe118728ff5ffbd741aa6a7534088b4940d0f4f1015da
SHA3-384 hash: af77c30a3224020916a4d39326d4731f9b583f435e53f4f08d52df19ba7699792b0bac7282224e6e514de8c78276e8c4
SHA1 hash: 1b8f96ef569a838fa01608434bc37d9cde6d9b13
MD5 hash: dd85c40d44cbe918ce58f154d3469461
humanhash: triple-blue-floor-potato
File name:KvbxbkyXYy.exe
Download: download sample
Signature AgentTesla
File size:1'083'280 bytes
First seen:2023-11-20 13:24:29 UTC
Last seen:2023-11-20 15:18:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:1xUiYMTTSFId0vX0J2GDM0C2lQkvupnFQDFcrCyAB/MuW:7hT+Fe0vX0J2GQ0tl9KqCrCyAB/xW
Threatray 11 similar samples on MalwareBazaar
TLSH T161350192E93EE703F31DD9BA43C61446E1069C5B0FA8CC25CA5C5F26495CC742E3BE6A
TrID 30.2% (.EXE) Win64 Executable (generic) (10523/12/4)
18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
14.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.9% (.EXE) Win32 Executable (generic) (4505/5/1)
5.9% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lowmal3
Tags:AgentTesla exe signed

Code Signing Certificate

Organisation:mozillacooperation2023
Issuer:mozillacooperation2023
Algorithm:sha256WithRSAEncryption
Valid from:2023-11-20T11:54:54Z
Valid to:2024-11-20T11:54:54Z
Serial number: d4527e0ba95338d123f2e230a90d1de2
Thumbprint Algorithm:SHA256
Thumbprint: 44ba9cc45d0631d21a9ceb24f17a7e0428902e71de2bd1f263819d961fb36557
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
326
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Result
Verdict:
MALICIOUS
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.spyw.evad
Score:
100 / 100
Signature
.NET source code contains process injector
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-11-20 12:43:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Unpacked files
SH256 hash:
4588f2c0ed07ad703b66f26ac9b68b377f28864d4155e1959596d7f5cc8a9e77
MD5 hash:
8245a98666a7adb155880211f4d3e11f
SHA1 hash:
2413b6109b83786ce697150cb11f8ee8bca74def
SH256 hash:
3665a41374b9b77f594fe118728ff5ffbd741aa6a7534088b4940d0f4f1015da
MD5 hash:
dd85c40d44cbe918ce58f154d3469461
SHA1 hash:
1b8f96ef569a838fa01608434bc37d9cde6d9b13
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:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

AgentTesla

Executable exe 3665a41374b9b77f594fe118728ff5ffbd741aa6a7534088b4940d0f4f1015da

(this sample)

  
Delivery method
Distributed via e-mail attachment

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