MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7aea54e5a7af3c0486ca05606e29416b4bae058d6ca16e06afe2d57a9da90838. 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: 7aea54e5a7af3c0486ca05606e29416b4bae058d6ca16e06afe2d57a9da90838
SHA3-384 hash: 5f118dcd368934b401e5bbe656948c3e5c0997c867f611ba1b2fce93d92dc5c652df968771be832700cdb573f3b73283
SHA1 hash: f70610ac581f16be76b806394381519f54ef834e
MD5 hash: 8c63e9a869b7c94dd7398a3217c5861f
humanhash: bakerloo-fillet-six-undress
File name:Transferencia de tarjeta 2020.08.06.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:538'112 bytes
First seen:2020-08-06 05:47:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:xP3SKLGLQzoMHcF8r7hp5RLOJ4WQsDs8grpiA:XQbMHcFihp5pOJdqQA
Threatray 10'731 similar samples on MalwareBazaar
TLSH 42B4F154379DAF66E9FC9BF4815C358003B8BD2BEA51F3555C8170FB2636B40C2A0AA7
Reporter abuse_ch
Tags:AgentTesla ESP exe geo


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: Alex Sarmiento <alexsarmiento20@gmail.com>
Subject: Transferencia de tarjeta 2020.08.06
Attachment: Transferencia de tarjeta 2020.08.06.7z (contains "Transferencia de tarjeta 2020.08.06.exe")

AgentTesla SMTP exfil server:
mail.grupoveritas.mx:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40071/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/412139
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: 258313 Sample: Transferencia de tarjeta 20... Startdate: 06/08/2020 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Yara detected AgentTesla 2->41 43 5 other signatures 2->43 6 WEqfDb.exe 3 2->6         started        9 Transferencia de tarjeta 2020.08.06.exe 3 2->9         started        12 WEqfDb.exe 2 2->12         started        process3 file4 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->45 47 Machine Learning detection for dropped file 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 14 WEqfDb.exe 2 6->14         started        18 WEqfDb.exe 6->18         started        29 Transferencia de t... 2020.08.06.exe.log, ASCII 9->29 dropped 51 Injects a PE file into a foreign processes 9->51 20 Transferencia de tarjeta 2020.08.06.exe 2 5 9->20         started        23 WEqfDb.exe 12->23         started        signatures5 process6 dnsIp7 31 mail.grupoveritas.mx 14->31 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->53 55 Tries to steal Mail credentials (via file access) 14->55 57 Tries to harvest and steal ftp login credentials 14->57 59 Tries to harvest and steal browser information (history, passwords, etc) 14->59 33 grupoveritas.mx 209.99.16.94, 49741, 49743, 587 PUBLIC-DOMAIN-REGISTRYUS United States 20->33 35 mail.grupoveritas.mx 20->35 25 C:\Users\user\AppData\Roaming\...\WEqfDb.exe, PE32 20->25 dropped 27 C:\Users\user\...\WEqfDb.exe:Zone.Identifier, ASCII 20->27 dropped 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->61 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7aea54e5a7af3c0486ca05606e29416b4bae058d6ca16e06afe2d57a9da90838/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 01:17:04 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=plvfjznhv46ajbwkavqg4kkbnnf24bmnnsqw4bvp4lkxvhnjba4a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'721 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200806-4wck1nbxl6/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
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.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/7aea54e5a7af3c0486ca05606e29416b4bae058d6ca16e06afe2d57a9da90838

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

7z 5a6aba54948a9fccb737005227e8efa2d29fee99d13faa04222c923276e0a45c

AgentTesla

Executable exe 7aea54e5a7af3c0486ca05606e29416b4bae058d6ca16e06afe2d57a9da90838

(this sample)

  
Dropped by
MD5 f0b6d590df740286539de3a91e31d575
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/40071/
  
Dropped by
SHA256 5a6aba54948a9fccb737005227e8efa2d29fee99d13faa04222c923276e0a45c

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