MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a596fdfb8997f081dd7674b248d02518f1052fe4b1c384a050f6a82b65816311. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a596fdfb8997f081dd7674b248d02518f1052fe4b1c384a050f6a82b65816311
SHA3-384 hash: f443852235ad13569f577727cdf22208fb18519946384f49358b9a2981053d4155c7500a7e830283e2f06d8d73ca0acc
SHA1 hash: 643756d113aee3eb277f41b2c8d8990b16e726e6
MD5 hash: 648d11208985f3b9139fbbb9fa780222
humanhash: harry-six-jersey-princess
File name:datasheet.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'792'408 bytes
First seen:2020-08-04 13:34:42 UTC
Last seen:2020-08-04 15:22:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:MHLTAHknUcqX2mJ5vRQAOOF+1cdNRO9+84N+tGNqV11lfA2hgEtjqpcfB:OXAEXqXdvRQAnvxOUlOGNqb1lfhg85
Threatray 10'900 similar samples on MalwareBazaar
TLSH B085CF3836839804D53E093694A5E2E873B0F9867B15CA0E39CA1F6D7E5379B7F07522
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: kalpataru.com
Sending IP: 209.58.149.66
From: Samrat Bhoir <samrat.bhoir@kalpataru.com>
Subject: S04052 – SRU Paradip Refinery/RFQ for Manual Valve/001
Attachment: datasheet.zip (contains "datasheet.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38734/
Detection(s):
SecuriteInfo.com.Trojan.MulDrop13.35840.24790.5108.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/409508
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Installs a global keyboard hook
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a596fdfb8997f081dd7674b248d02518f1052fe4b1c384a050f6a82b65816311/
Threat name:
ByteCode-MSIL.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 13:36:10 UTC
AV detection:
29 of 46 (63.04%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uwlp364js7yidxlwoszerubfddyqkl7ewhbyjicq62ucwzmbmmiq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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73227e5663576f946ecdd31082bd8ccbd65cb8332f3ccff9807d43c2481276aa
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87dfe4ff436d339cb76d24a85574742d33682b1a38d2c08cc85781b14cb8890e
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c3196a4d4498a77b2e27353a3cd61ce5494bdce1f29f5643e8fece30aba5a20e
AgentTesla
+ 10'890 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200804-f59ag25xvj/
Behaviour
Agenttesla family
AgentTesla Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.88
Link:
https://yomi.yoroi.company/submissions/a596fdfb8997f081dd7674b248d02518f1052fe4b1c384a050f6a82b65816311

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
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

zip 2162a85980400b26f7de11d3ce7c2d7a3bbde29a59932b671fcc3b3037ed668e

AgentTesla

Executable exe a596fdfb8997f081dd7674b248d02518f1052fe4b1c384a050f6a82b65816311

(this sample)

  
Dropped by
MD5 f5afd0b789a9bbb58c51eec773c6eebc
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38734/
  
Dropped by
SHA256 2162a85980400b26f7de11d3ce7c2d7a3bbde29a59932b671fcc3b3037ed668e

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