MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4cb4b3c28208b5f92691ffa076e7926b70f7c2f03911c5772f3db84f0994807. 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



AveMariaRAT


Vendor detections: 9


Intelligence 9 IOCs YARA 6 File information Comments

SHA256 hash: a4cb4b3c28208b5f92691ffa076e7926b70f7c2f03911c5772f3db84f0994807
SHA3-384 hash: c88f1b0f4ac92c5fa41ebb433c20180bff4926c5ce8ab7640630460a791358bafc44a1251bc89dc3b7e1a63d9acf4b45
SHA1 hash: 018c1f8bd691209c9f48e419b0ce2c99248d8a7e
MD5 hash: 389c4fa866982f6c3d37c2f9af82569f
humanhash: shade-cola-delta-wisconsin
File name:ES00415Q0123854MDESPN.exe
Download: download sample
Signature AveMariaRAT
File size:478'208 bytes
First seen:2020-10-08 14:03:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6b95e48f7f3354eb8a9cb9025609bd42 (1 x AveMariaRAT)
ssdeep 12288:2RiyiDdk/dkMaumZfF/gv0ZtzrIZvY8yb6AY5:IiyMgiu0WZAr6
Threatray 462 similar samples on MalwareBazaar
TLSH 16A423C6314BF17CCBCBF8FCBEB5845EE73C6864498601996B84458AFD8BE9182048C7
Reporter abuse_ch
Tags:AveMariaRAT exe RAT


Avatar
abuse_ch
Malspam distributing AveMariaRAT:

HELO: dts.alphajetservices.com
Sending IP: 185.78.220.36
From: cliente@bbva.com
Subject: BBVA: Instrucción de Depósito a tu Cuenta
Attachment: ES00415Q0123854MDESPN.Gz (contains "ES00415Q0123854MDESPN.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
DNS request
Creating a file
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Connection attempt
Creating a file in the %AppData% directory
Deleting a recently created file
Reading critical registry keys
Creating a file in the %temp% directory
Stealing user critical data
Enabling autorun by creating a file
Result
Threat name:
AveMaria
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to create processes via WMI
Creates files in alternative data streams (ADS)
Creates processes via WMI
Drops script or batch files to the startup folder
Increases the number of concurrent connection per server for Internet Explorer
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2020-10-08 13:31:43 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
JavaScript code in executable
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
a4cb4b3c28208b5f92691ffa076e7926b70f7c2f03911c5772f3db84f0994807
MD5 hash:
389c4fa866982f6c3d37c2f9af82569f
SHA1 hash:
018c1f8bd691209c9f48e419b0ce2c99248d8a7e
SH256 hash:
6efa7523d09237abc79b7031cc4935f7e11db4c9d0d6c30068aeae2e94d48475
MD5 hash:
8b7c1a303bf41b1e0045fc0956056d61
SHA1 hash:
f1babafb19c25e1f5e67026cdbbc61bae845ad0a
Detections:
win_rektloader_auto
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:Cobalt_functions
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:MAL_Envrial_Jan18_1
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:RDPWrap
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:suspicious_packer_section
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
Rule name:win_ave_maria_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_rektloader_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AveMariaRAT

Executable exe a4cb4b3c28208b5f92691ffa076e7926b70f7c2f03911c5772f3db84f0994807

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments