MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6437e7a82791bdbf30dd91f6148dc5e5e30ffe22cf0337365082784cbaf672ea. 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: 6437e7a82791bdbf30dd91f6148dc5e5e30ffe22cf0337365082784cbaf672ea
SHA3-384 hash: 770a7605752943afe7c51b8844a18b8e81f596074ad63c7d1c0240639022f2c07fe1bb8b2d2030c4a4db126ec08e2710
SHA1 hash: af9973788a0116b129224f066a0ae511c8f39db6
MD5 hash: d062e63158cf9eb62ef4fee888aebcdd
humanhash: oscar-diet-yellow-delta
File name:6591111307.jpg
Download: download sample
Signature AgentTesla
Create hunting rule
File size:557'568 bytes
First seen:2020-07-07 12:42:19 UTC
Last seen:2020-07-07 16:03:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:ql267K3veU+BHtCOlm3Ht76vJGaYwz/AhtRlXJ:KKWU+xBQ92k5wzmz
Threatray 10'643 similar samples on MalwareBazaar
TLSH 99C4BEB032B1AFA2C6390BF4951425004FF43A9BA53ED3AC6DC560DB15F2F449A91BB3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: btb.it
Sending IP: 104.168.166.71
From: Luca <armando.nalbone@btb.it>
Subject: R: Offerta
Attachment: Offerta1111307.xls

AgentTesla payload URL:
http://crogtrt.com/IG/6591111307.jpg

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

Intelligence

File Origin
# of uploads :
3
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/22260/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.ENTQ.4667.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6437e7a82791bdbf30dd91f6148dc5e5e30ffe22cf0337365082784cbaf672ea/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 12:44:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
23 of 28 (82.14%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mq36pkbhsg636mg5sh3bjdof4xrq77rcz4btonsqqj4ezoxwolva._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'633 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:agenttesla
Link:
https://tria.ge/reports/200707-e78lkpqvdx/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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.

Malspam

AgentTesla

Excel file xls 79e42e4da20588bed383670a9af00056e8cc99fcc2353d7a2f5a24ddc2eed66a

AgentTesla

Executable exe 6437e7a82791bdbf30dd91f6148dc5e5e30ffe22cf0337365082784cbaf672ea

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/408638/
  
Dropped by
MD5 56efde4b17b8076c0f1f8c2491b3b00d
  
Dropped by
SHA256 79e42e4da20588bed383670a9af00056e8cc99fcc2353d7a2f5a24ddc2eed66a
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/22260/

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