MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21d9eab05cfdf3ee39d42b6b22b48ebb550dee74f57141459e26315a1750d366. 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: 21d9eab05cfdf3ee39d42b6b22b48ebb550dee74f57141459e26315a1750d366
SHA3-384 hash: 9aee0a4db8d8e9a470e23cf7912bd9c1cae41ca92f689a1360970d583b9a8e51966dbb90fbb0b35997537297e4c8b91b
SHA1 hash: d9678acb5c147f09cd2df04452ed5e915e01ecd1
MD5 hash: 8943652396182a09e23f020e63dcb0b6
humanhash: california-autumn-fanta-carolina
File name:Inv-354.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:624'128 bytes
First seen:2020-08-31 09:22:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:WD0fflv0sQKhwlA44hSmEMS4O2YCLgq8mxeL0iPmPY8dr5WqY3yDiDC60hp7o6Tx:1fys5ylh4cqCpCUh8e5PKYUx
Threatray 10'008 similar samples on MalwareBazaar
TLSH 4AD41232343C9B76DAFA07F3280E3D1C9364796B885DD39DA890339746F53D8472AA16
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: bebonchina.com
Sending IP: 103.125.191.216
From: Mady-Bebon <mady@bebonchina.com>
Reply-To: mady@bebonchina.com
Subject: Re: PROFROMA INVOICE
Attachment: Inv-354.r01 (contains "Inv-354.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53353/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
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
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Changing the hosts file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455119
Signature
.NET source code contains potential unpacker
Found malware configuration
Injects a PE file into a foreign processes
Modifies the hosts file
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279938 Sample: Inv-354.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 34 Multi AV Scanner detection for domain / URL 2->34 36 Found malware configuration 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 7 other signatures 2->40 7 Inv-354.exe 4 2->7         started        process3 file4 22 C:\Users\user\AppData\...\nWHvIUUmCBWT.exe, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\...\tmpDDD9.tmp, XML 7->24 dropped 26 C:\Users\user\AppData\...\Inv-354.exe.log, ASCII 7->26 dropped 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->44 46 Injects a PE file into a foreign processes 7->46 11 Inv-354.exe 2 7->11         started        16 schtasks.exe 1 7->16         started        18 Inv-354.exe 7->18         started        signatures5 process6 dnsIp7 30 procetfreight.co.ke 67.225.192.148, 49725, 587 LIQUIDWEBUS United States 11->30 32 mail.procetfreight.co.ke 11->32 28 C:\Windows\System32\drivers\etc\hosts, ASCII 11->28 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->48 50 Tries to steal Mail credentials (via file access) 11->50 52 Tries to harvest and steal ftp login credentials 11->52 54 2 other signatures 11->54 20 conhost.exe 16->20         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21d9eab05cfdf3ee39d42b6b22b48ebb550dee74f57141459e26315a1750d366/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 02:20:39 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehm6vmc47xz64ooufnvsfneoxnkq33tu6vyucrm6eyyvuf2q2nta._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'998 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200831-r1qbrrh1ze/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
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/21d9eab05cfdf3ee39d42b6b22b48ebb550dee74f57141459e26315a1750d366

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

r01 3b26cdb78f3d4ccf78a15098f2e7c7236ca80956944c68e37ca60a110946a9c9

AgentTesla

Executable exe 21d9eab05cfdf3ee39d42b6b22b48ebb550dee74f57141459e26315a1750d366

(this sample)

  
Dropped by
MD5 5df79f6409dfc555f31b02d1e0ae8d7b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53353/
  
Dropped by
SHA256 3b26cdb78f3d4ccf78a15098f2e7c7236ca80956944c68e37ca60a110946a9c9

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