MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 638c1a92d23c9660163d8cc9e985189afe678096062a115ac08187d89a2e4149. 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: 4


Intelligence 4 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 638c1a92d23c9660163d8cc9e985189afe678096062a115ac08187d89a2e4149
SHA3-384 hash: 28fa542c37cffcf13e8863f569ac1d20837303ad0cd19d3c1e396063b93cc7c8b681ddee4b8b7d52341a5ee56b77ee16
SHA1 hash: ede2725c21d5d1c5ed90b7ed1c49335ef98a4db3
MD5 hash: be66b5d7aa52870a0b49d8d9cf941010
humanhash: magazine-magnesium-uranus-ohio
File name:Quotation_Ref_0063755325.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'501'696 bytes
First seen:2020-05-27 08:22:51 UTC
Last seen:2020-05-27 13:21:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:Utb20pkaCqT5TBWgNQ7avrII0HCapmiXSfX4WkqOZZ5GVTc6A:9Vg5tQ7avrII0H1XSv4W9Oft5
Threatray 10'944 similar samples on MalwareBazaar
TLSH 3C65DF1223DE8360CB7E1173BA157741AEBBFC2505A1F4BB2F94C93CA9201215E5E66F
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: dasos-ones.pw
Sending IP: 206.125.44.194
From: Biscotti Tsoungari <info@dasos-ones.pw>
Reply-To: mcclain@furaffinity.com
Subject: REQUEST PO-01004580 (New Vendor Requirements)
Attachment: Quotation_Ref_0063755325.rar (contains "Quotation_Ref_0063755325.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27686.AidExe.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.27681.XorExe.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
Win32.Trojan.Injector
Create hunting rule
Status:
Malicious
First seen:
2020-05-27 07:10:46 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
25 of 31 (80.65%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
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8b813d05c34ef0fcfa4d5672bef577519adcb4e8d62e2703419a299341586823
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a0f7233739e1845e01bc4fdb92177d15dae8a793be6bccb5c1fd9121a701d052
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c0e9834e978646714b1e771103705e34e4211894fe3987d1e09bc6353827b1e0
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c1c47c03448a9f0797fcb2ddea8c5fdc9e3dbb13ed3bf5a3784800df490356d9
AgentTesla
+ 10'934 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-ly3wl9pdba/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Drops startup file
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
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

rar c49b40a3d4551bb150fb95fb7155859e79999fb4bc61edaa19e4e061924560fb

AgentTesla

Executable exe 638c1a92d23c9660163d8cc9e985189afe678096062a115ac08187d89a2e4149

(this sample)

  
Dropped by
MD5 a0a5ba94e6c535ae14525785c3c3ef87
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 c49b40a3d4551bb150fb95fb7155859e79999fb4bc61edaa19e4e061924560fb

Comments