MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fba937f1e8ae7eab73de2233f36e813fc2e4e889cbf5103f72ed642ba2e76c3. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fba937f1e8ae7eab73de2233f36e813fc2e4e889cbf5103f72ed642ba2e76c3
SHA3-384 hash: c007d59c5f4612d029d727efeefeffa43e7e059aac12e904efeb9ba049c013772e731af05b8e8992549df233a325ff66
SHA1 hash: 3793cb0bcad49f89cb00a272f47bea318a137e8e
MD5 hash: 32b0333324cb7e09a5310ca329882779
humanhash: magnesium-river-ink-juliet
File name:Bank Details.pdf.iso.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:533'504 bytes
First seen:2020-06-03 08:14:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:ZJLOyziSPlBbgPVAs8kGcFhBvLWApdjFe3hpuLEy8tMT6ZZDGhnWkP:VpSA/kbTLWAZWhIE8
Threatray 10'755 similar samples on MalwareBazaar
TLSH 6FB49D9D762072EFC857D076DEA92CA8FA9034BB831F5103901725AD9E4D897CF285F2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: slot0.bayercornpany.com
Sending IP: 45.95.169.50
From: Arthur Sanchez <tradincorp@juditief.com>
Subject: Re: Bank Details Changed
Attachment: file.iso (contains "Bank Details.pdf.iso.exe")

AgentTesla SMTP exfil server:
mail.logserver.ga:25

Intelligence

File Origin
# of uploads :
1
# of downloads :
61
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Genkryptik
Create hunting rule
Status:
Malicious
First seen:
2020-06-03 12:31:29 UTC
AV detection:
27 of 48 (56.25%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j65jg7y6rlt6vnz54irt6nxicp6c4tuits7vca7xf3leforoo3bq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0416f24af0f86b36e1068ba8431cf3bf1bad0fa41ec2cfeb655f7b46ef86b5df
AgentTesla
065bc29beee579f4df10691c61b9d3bc38ac4c271da4eb2e1ccfce7a2e33dd93
AgentTesla
1e68055f95563948fbacfd1de0b04fd457c108ef8482d2a6642a0067835ce529
AgentTesla
2c8da0da6cbab2366291deabbb773bec304a9e49c87982a04d6ee33c712cd642
AgentTesla
423c8c0b4eb6fc15b614326190cbd2b932f5480fdc1791ca9c03dc696ef61b31
AgentTesla
6af32b6b849f1186317e65f84c1d59cc03ce878ca8e3706c5d7afae2389b3c64
AgentTesla
a67bb928f2d8830e5e8dd05beec8d56d189af490a667522752cba64b6cd5951a
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b283242e8ae83c1b2136090df9d70d06e328ee7116186667ed766d87f468da93
AgentTesla
b8cf49555f75f9f06bdfb76150d4b3e1a01a831a7eac7b644dde084c212a43d2
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dcbfc03cfe9523c25ab335f599cebcbbe8f2439ef7ab973aa9ec0330e4e7d11f
AgentTesla
+ 10'745 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla coreentity keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-z2bj66vw8e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
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
rezer0
AgentTesla
CoreEntity .NET Packer
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

iso 1adc18ee6c7de3c847656ecaac4023ed89e5c989e80460daad5f19a9a7df31e8

AgentTesla

Executable exe 4fba937f1e8ae7eab73de2233f36e813fc2e4e889cbf5103f72ed642ba2e76c3

(this sample)

  
Dropped by
MD5 b882c89c11f35cdf4fda99d2b10803ca
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 1adc18ee6c7de3c847656ecaac4023ed89e5c989e80460daad5f19a9a7df31e8

Comments