MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2303d08c9c8f35e63306c76d1c12aa08f963082214151638bf9d2390b43c14d3. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2303d08c9c8f35e63306c76d1c12aa08f963082214151638bf9d2390b43c14d3
SHA3-384 hash: 7a9a6b51e5b86732817f46036dcd5541e7d44514137effefdf4d8a0fea0cd657a897f7a3ce7eafd4092ea3d0ded87a5c
SHA1 hash: 129df38aaf8223b7171d28198a1d85d8bda4dda7
MD5 hash: 73e6206c14e1a2a9e225b14ff7a9528c
humanhash: romeo-diet-november-thirteen
File name:xUeolpdaadrSzyA.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:483'328 bytes
First seen:2020-08-06 05:45:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:jP3SPgzKq5v3JEzwbPB8ElWO9t5ZhdR024MQqQzgrpiA:YEKq5REkNoO9lh3dQJkQA
Threatray 10'831 similar samples on MalwareBazaar
TLSH A6A4F104379CAB66D9FD9FF4424D308447F5BD6AEE11E3648E8170FA1772B80C691A8B
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: smtprelay.b.hostedemail.com
Sending IP: 64.98.42.44
From: Beverly - Your Celebrant and Ceremony <beverly@yourcelebrantandceremony.com>
Reply-To: beverly@yourcelebrantandceremony.com
Subject: Re: Confirm PerformTex Order Amount PI#0712
Attachment: Invoice.zip (contains "xUeolpdaadrSzyA.exe")

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

AgentTesla SMTP exfil email address:
money@ashok-photos.com

Intelligence

File Origin
# of uploads :
1
# of downloads :
67
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40068/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/412131
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 258305 Sample: xUeolpdaadrSzyA.exe Startdate: 06/08/2020 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Yara detected AgentTesla 2->40 42 2 other signatures 2->42 6 IpMrV.exe 3 2->6         started        9 xUeolpdaadrSzyA.exe 3 2->9         started        11 IpMrV.exe 2 2->11         started        process3 signatures4 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->46 48 Injects a PE file into a foreign processes 6->48 13 IpMrV.exe 2 6->13         started        17 IpMrV.exe 6->17         started        19 xUeolpdaadrSzyA.exe 2 5 9->19         started        22 xUeolpdaadrSzyA.exe 9->22         started        24 xUeolpdaadrSzyA.exe 9->24         started        26 xUeolpdaadrSzyA.exe 9->26         started        28 IpMrV.exe 11->28         started        process5 dnsIp6 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->50 52 Tries to steal Mail credentials (via file access) 13->52 54 Tries to harvest and steal ftp login credentials 13->54 56 Tries to harvest and steal browser information (history, passwords, etc) 13->56 34 mail.orbingenieria.com 129.121.3.219, 49744, 49746, 587 ASMALLORANGE1US United States 19->34 30 C:\Users\user\AppData\Roaming\...\IpMrV.exe, PE32 19->30 dropped 32 C:\Users\user\...\IpMrV.exe:Zone.Identifier, ASCII 19->32 dropped 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->58 60 Installs a global keyboard hook 19->60 file7 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2303d08c9c8f35e63306c76d1c12aa08f963082214151638bf9d2390b43c14d3/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 01:08:01 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=emb5bde4r426mmygy5wryevkbd4wgcbccqkrmof7turzbnb4ctjq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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2cfe1844342a95aa0891efacedad05182cace9dcb728d81566d38989d4857e13
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43df57ab41efe08b1cefccb610962e31bf15c398323ce558b0218c7e8be89e9d
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f82fcb01f1334b2885bc090c3bc8bc587f64919b9739e95ffe12c9e5d5bc11cd
AgentTesla
+ 10'821 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200806-syzl187pma/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/2303d08c9c8f35e63306c76d1c12aa08f963082214151638bf9d2390b43c14d3

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 e2e243beb80a79eb91a3d2beecdc4faaa5d66ee499440f613785edd706b23cec

AgentTesla

Executable exe 2303d08c9c8f35e63306c76d1c12aa08f963082214151638bf9d2390b43c14d3

(this sample)

  
Dropped by
MD5 a8220a31015a8cda5cfda60eddb12e47
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/40068/
  
Dropped by
SHA256 e2e243beb80a79eb91a3d2beecdc4faaa5d66ee499440f613785edd706b23cec

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