MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03a8582db8f34154ed1e18821d8d7e2df2148ce0c36b06ed7fb91f387e3f0aa6. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03a8582db8f34154ed1e18821d8d7e2df2148ce0c36b06ed7fb91f387e3f0aa6
SHA3-384 hash: 79f6d9a299ba1fd55f43f997332adbdac8b608b1095a7fcc974fe3de32baa5d16873cc271149b5e43ccb18396596d4e0
SHA1 hash: 27c0a7cb6cf140d6ad7109cfb2c0f64af73f6e8c
MD5 hash: 7f1e268e77797a3049136b2e8b67a997
humanhash: magnesium-oxygen-sixteen-aspen
File name:Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:5'300'224 bytes
First seen:2020-07-07 08:51:28 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 98304:CIjX8fxV9HMhAWTk4XOioR+lIBtdwSfxFaS3jUvAP9Lwlu2md:CiafH6A4XOioY4t5xwS3jUvc9L1
Threatray 10'794 similar samples on MalwareBazaar
TLSH 6936222D3BC2641DD97C483284A969E1D7B1A0473702C79F76C647BC5F02ADFAB061EA
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.pickelhost.com
Sending IP: 185.183.98.177
From: Harrison Contractors<contact@ariapetrolub.fun>
Subject: Re: R: R: Order Confirmation Nr. 2748 of 20102/2020
Attachment: Invoice.rar (contains "Invoice.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/22092/
Detection(s):
Sanesecurity.Malware.24184.7zHeur.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/03a8582db8f34154ed1e18821d8d7e2df2148ce0c36b06ed7fb91f387e3f0aa6/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 08:53:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=aoufqlny6navj3i6dcbb3dl6fxzbjdhaynvqn3l7xeptq7r7bkta._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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88d5500916ded187f8d33b6e16f29db7388374f977ad11d39733613085189d27
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a5bc29d5e6f55ba05f61fff45175d9864ee0b311ad45baf0cfd65c74666da14c
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AgentTesla
+ 10'784 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200707-b2417bkpn6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Suspicious use of SetThreadContext
Adds Run entry to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Loads dropped DLL
Executes dropped EXE
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
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

rar b3c6051103020a9d10666012a5709036ec080a9af6f3afee4e22c668d005a70e

AgentTesla

Executable exe 03a8582db8f34154ed1e18821d8d7e2df2148ce0c36b06ed7fb91f387e3f0aa6

(this sample)

  
Dropped by
MD5 b2f8e3a1a4c9d7889009d78a09e52b24
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22092/
  
Dropped by
SHA256 b3c6051103020a9d10666012a5709036ec080a9af6f3afee4e22c668d005a70e

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