MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84b57878a21a4ae3d1ee0674635be0b4ec9608eeddbab113596621fab4df8407. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 84b57878a21a4ae3d1ee0674635be0b4ec9608eeddbab113596621fab4df8407
SHA3-384 hash: 62ffe585aa2ea58ace8c5d380b6a43b91929e8690fac64aa15053267f400d899c1efb963981f8aca2d5ef4565a76ae86
SHA1 hash: 829454752c9ed36c5a4353a25f516a3644cda4f3
MD5 hash: fd1be3c496e2e46de4248888576ddba1
humanhash: cardinal-carolina-happy-aspen
File name:REVISED RFQ 139995-JEP 139996-NBM 139998-QPT.pdf____.exe
Download: download sample
Signature AgentTesla
File size:746'496 bytes
First seen:2020-07-29 13:49:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:jakzwuh8BSfN7Bv16pDBALFG4XOoGiRrfe4xo6uWZPnDwuk/i+Ga4x44XqA:2YwutfN7BvQOcUjJoULwbqTa4W4XqA
Threatray 10'786 similar samples on MalwareBazaar
TLSH 68F43869F4816541E53D1A3184B86D807AB2B74A2E0DC60F38FB374C5E356DB3B16CAE
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


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

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
88 / 100
Signature
.NET source code contains very large array initializations
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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.Infostealer.Fareit
Status:
Malicious
First seen:
2020-07-29 09:57:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
32 of 48 (66.67%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger trojan stealer 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
Loads dropped DLL
Reads user/profile data of local email clients
Executes dropped EXE
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.

  
Delivery method
Other

Comments