MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b540d8dbf441994703593fb0d77bfecde0ea29daffd43b721de2bed1b9e497c. 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: 4b540d8dbf441994703593fb0d77bfecde0ea29daffd43b721de2bed1b9e497c
SHA3-384 hash: 3a833636042411c3af88de64860a94239a6f1af42e85a7aae496c975a65e977156fd99ee496041b8ecb3070bc25b7faf
SHA1 hash: 5765faca327ff81e12ce8df069a9450ca99ff797
MD5 hash: 98e28851d50f494054ed08feb1cc4326
humanhash: utah-alpha-floor-michigan
File name:EQUIPMENT MATERIALS NEEDED.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:871'936 bytes
First seen:2020-07-08 12:53:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:U1E4f72sc1aQx/7d8sUdslhtWIslhtWt:A72mQxDdUYhtWFhtW
Threatray 10'951 similar samples on MalwareBazaar
TLSH 8D05D131BBA19905C73E0F33E96201006E76A66B6F06E68F5ECC11ED4E6F7441A57B07
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.protocol.it
Sending IP: 194.243.125.3
From: info@fatbytesrl.com
Subject: MATERIALS NEEDED-INV
Attachment: EQUIPMENT MATERIALS NEEDED.zip (contains "EQUIPMENT MATERIALS NEEDED.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/23108/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.ENVP.21041.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Moving of the original file
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b540d8dbf441994703593fb0d77bfecde0ea29daffd43b721de2bed1b9e497c/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-08 12:55:06 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnka3dn7iqmzi4bvsp5q25575tpa5iu5v76uhnzb3yv62g46jf6a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
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a21f2a9736d444429fc9180093fe9a8d14aa0b49cb11f4db0c91461b83ccc826
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b215d5e7cf39628497363e29d2dce0475e7180da848f7f6032d1187c78fd16bf
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d3585150a0d7118b7d4dd19bb781d4eee5887fa56bdd61a337181a9ff24f023f
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f49d13411efa1b43fa53a5dc39e03d62164f21620ec3c18b870710275685933c
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AgentTesla
+ 10'941 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200708-6hbt3kxc8s/
Behaviour
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
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
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.

761ac9cc43b3259894be92c88cc28c49

AgentTesla

Executable exe 4b540d8dbf441994703593fb0d77bfecde0ea29daffd43b721de2bed1b9e497c

(this sample)

  
Dropped by
MD5 761ac9cc43b3259894be92c88cc28c49
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/23108/

Comments