MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 283e544c4bb4dcba6f6b982e53d33bb1b2bf342314f92b144bc98f4ebafbce05. 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: 7


Intelligence 7 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 283e544c4bb4dcba6f6b982e53d33bb1b2bf342314f92b144bc98f4ebafbce05
SHA3-384 hash: e96e1d8b7b5921dd24b275b80d1ab915bf69411cae8653c2a2fb2842f37fa3a9f09cf8588e53a98beeb74ddc2fb85166
SHA1 hash: 5f6996bc64096c6603ff732cf80b7a0336e75d45
MD5 hash: fe768517f29326fe6c77a2ec75ebb115
humanhash: nebraska-red-six-sixteen
File name:HALKBANK.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:2'985'984 bytes
First seen:2020-07-10 10:20:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:XFt3XryxIFdO5yhMEGpjr0nhc9GHpNX7K4F2N3bpOjo1Na6b5nIUXkq20htt0+uc:16gO5bjfAHppW4F2Nf5n920h2+/Y
Threatray 11'397 similar samples on MalwareBazaar
TLSH 3BD594397AC29428C93E0675C4E85DC27771B64B3B56CB5F318B034C9E03AABBB1715A
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: halkbank.com.tr
Sending IP: 45.153.241.46
From: T. HALK BANKASI<EKSTRE@halkbank.com.tr>
Reply-To: T. HALK BANKASI<EKSTRE@halkbank.com.tr>
Subject: T.HALK BANKASI A.S. 10.07.2020 Hesap Ekstresi
Attachment: HALKBANK.zip (contains "HALKBANK.exe")

AgentTesla SMTP exfil server:
mail.decoplanet.net:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
Win.Malware.AgentTesla-7660762-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file
Running batch commands
Launching a process
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/283e544c4bb4dcba6f6b982e53d33bb1b2bf342314f92b144bc98f4ebafbce05/
Threat name:
Win32.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-10 10:22:07 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fa7fitclwtolu33ltaxfhuz3wgzl6nbdct4swfclzghu5ox3zycq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 11'387 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla family:masslogger
Link:
https://tria.ge/reports/200710-9e4grblyvn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run entry to start application
Looks up external IP address via web service
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Loads dropped DLL
Executes dropped EXE
MassLogger log file
MassLogger
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:masslogger_gcch
Create hunting rule
Author:govcert_ch
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 3c00e40f4394802eb5ffa0680bd9f9845964dc3bb7487875512e61a0ee1b7a6c

AgentTesla

Executable exe 283e544c4bb4dcba6f6b982e53d33bb1b2bf342314f92b144bc98f4ebafbce05

(this sample)

  
Dropped by
MD5 be04ae0ba790e757fc47ed102436d3e4
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/24346/
  
Dropped by
SHA256 3c00e40f4394802eb5ffa0680bd9f9845964dc3bb7487875512e61a0ee1b7a6c

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