MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbced135a4f7bdf17c4d3c478b12a765c4da52ae19347bc152c904d2f60a01d1. 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: dbced135a4f7bdf17c4d3c478b12a765c4da52ae19347bc152c904d2f60a01d1
SHA3-384 hash: eec1c306f949869a124a650c5992af1e9ceb9e8248226258a0d331d30a2d5b40e402de0fdfc52252b64a1024a000677e
SHA1 hash: 918143eed5df618fcbb5669c12caf2121e654e06
MD5 hash: fe85c072df58d7d55d23e0e6b8a5a272
humanhash: video-bakerloo-lake-idaho
File name:clrhty.jpg
Download: download sample
Signature AgentTesla
Create hunting rule
File size:640'000 bytes
First seen:2020-08-03 13:05:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 6144:3HAgbCa8sGQTlr8GrNgpx5dnB7y0sCWCHFOnJnuYUZjVXCO:3HX8kTB8GraDdnB77ajUj
Threatray 10'833 similar samples on MalwareBazaar
TLSH ABD4293D3A83A505D63D4A3248E5AAD2A6B175873F51CB0F79C6179C5F022CF3B0B25A
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: bd.bidsbd.link
Sending IP: 192.254.160.121
From: G Nolasco ~ Director <info@bids.org.bd>
Subject: revised order
Attachment: PO.xls

AgentTesla payload URL:
https://a.uguu.se/clrhty.jpg

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37836/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.14180.1807.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/407938
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Injects a PE file into a foreign processes
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Add file from suspicious location to autostart registry
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256207 Sample: clrhty.jpg Startdate: 03/08/2020 Architecture: WINDOWS Score: 84 34 Yara detected AgentTesla 2->34 36 Sigma detected: Add file from suspicious location to autostart registry 2->36 38 .NET source code contains very large array initializations 2->38 7 clrhty.exe 7 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 28 C:\Users\user\AppData\...\AppFileData.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 7->30 dropped 32 C:\Users\...\AppFileData.exe:Zone.Identifier, ASCII 7->32 dropped 14 AppFileData.exe 2 7->14         started        17 cmd.exe 1 7->17         started        19 AppFileData.exe 3 10->19         started        process5 signatures6 46 Writes to foreign memory regions 14->46 48 Allocates memory in foreign processes 14->48 50 Injects a PE file into a foreign processes 14->50 21 RegAsm.exe 2 14->21         started        24 reg.exe 1 1 17->24         started        26 conhost.exe 17->26         started        process7 signatures8 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->42 44 Creates an autostart registry key pointing to binary in C:\Windows 24->44
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dbced135a4f7bdf17c4d3c478b12a765c4da52ae19347bc152c904d2f60a01d1/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 13:07:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3phncnne6667c7cnhrdywevhmxcnuuvode2hxqkszecnf5qkahiq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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8e2a4c89fec2c4ea4f8787eb383158ce570267bf8dbc840594afc81e1f2aa94b
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8f700076c9355cc2a07b8dcc4136d1364e987eebc063fb2e2b94e9b06989dea5
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a9568b036d4f3245151a68d35ac9e295dadc54d8b8528896b285497157bf2f35
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d7a318be405ec732d046ddbc65516f88eecc01cd27c08ec3bc9204cb832ae718
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f1d4585edb3d3af338467aaead97a3fbb58216c3174603e63af9cbbba8aeb885
AgentTesla
+ 10'823 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200803-g83kvk57a2/
Behaviour
Agenttesla family
AgentTesla Payload
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/dbced135a4f7bdf17c4d3c478b12a765c4da52ae19347bc152c904d2f60a01d1

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 b7403e3876b60e4fcea67df1ad6d56e7f930425b7bb9aaff85c95aa7a5c70fab

AgentTesla

Executable exe dbced135a4f7bdf17c4d3c478b12a765c4da52ae19347bc152c904d2f60a01d1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/423778/
  
Dropped by
MD5 1e3326ed5d61f505462ec040f0d4fca7
  
Dropped by
SHA256 b7403e3876b60e4fcea67df1ad6d56e7f930425b7bb9aaff85c95aa7a5c70fab
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/37836/

Comments