MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66a821494ff2c4e9d5dbe663572f4f46df6993b0a661a29cd4a3da18414b9527. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66a821494ff2c4e9d5dbe663572f4f46df6993b0a661a29cd4a3da18414b9527
SHA3-384 hash: 69712d54a512329a0556b426bc47482d7e507c1cdd0d8d615e8c4fc5c92475836fd4302546d3ce9cf8e1d4b2e58ee35e
SHA1 hash: 1d31d28aceb106ee34ed91e17b7d6b26b5bd4025
MD5 hash: 8feb32e81b0c570b023e62ccaa62459b
humanhash: early-wyoming-juliet-august
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:530'944 bytes
First seen:2020-08-18 11:47:52 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 12288:gd4EcmZHAFaxmVmie9bngPV62qTSuwhcycfLvbYc1i9x4qMbN7j86/YSKl:K4EcmZHAFaxmVmie9bngPs2qr7ffLvb9
Threatray 9'786 similar samples on MalwareBazaar
TLSH 97B4E16C3190F1BFE6EE8DB2A8642C244761232B470BFE07D95395E597DD6E1EE040A3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: tecirler.com
Sending IP: 103.99.1.170
From: "finans" <finans@tecirler.com>
Subject: Re: Swift Copy For Purchase Order PSC1705935.
Attachment: Purchase Order.zip (contains "Purchase Order.exe")

AgentTesla SMTP exfil server:
mail.amexworldwide.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
64
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/47769/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/66a821494ff2c4e9d5dbe663572f4f46df6993b0a661a29cd4a3da18414b9527/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 05:24:33 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m2uccskp6lcotvo34zrvol2pi3pwte5quzq2fhguupnbqqklsutq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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7867241670b0fd664072e1bf555bc56b8291a80e01adeebcffcc768a0e88c117
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AgentTesla
+ 9'776 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200818-tv7h29ztke/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/66a821494ff2c4e9d5dbe663572f4f46df6993b0a661a29cd4a3da18414b9527

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 ffcb2695595edb1038f01ac39dc24830d955352ae9880f983ff2e22137357f18

AgentTesla

Executable exe 66a821494ff2c4e9d5dbe663572f4f46df6993b0a661a29cd4a3da18414b9527

(this sample)

  
Dropped by
MD5 852239424be81f0464683f9dafade49d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/47769/
  
Dropped by
SHA256 ffcb2695595edb1038f01ac39dc24830d955352ae9880f983ff2e22137357f18

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