MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a87068b0ac096d9472fa021fd6bdfcf7d218ae8716fabc2c027ebd595a2381f. 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

Neurevt

Vendor detections: 7

Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash:	4a87068b0ac096d9472fa021fd6bdfcf7d218ae8716fabc2c027ebd595a2381f
SHA3-384 hash:	89a41270e845b618407b0a8f6c95b33bc16d3063d72bd1e92e4046b885585f48c1fae432a08488e4735cb3bf8920390e
SHA1 hash:	014ccaa6cd43ebf06f2fd4387f2ae6d899e2c6a0
MD5 hash:	ae4f045f4a0b66fbf927f230e98a3648
humanhash:	sierra-kansas-floor-sixteen
File name:	de.exe
Download:	download sample
Signature	Neurevt Create hunting rule
File size:	307'712 bytes
First seen:	2020-08-31 09:48:06 UTC
Last seen:	2020-08-31 12:17:31 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	e09c99c501401e12ae34252024d457bf (1 x Neurevt)
ssdeep	6144:4XKLKUy4nOVM26vMJWh6nGrfSXTJHnio6jY5Zg8:4XKOU3nFfSXFCzcZ
TLSH	83640161FAA1C633D89645784671C3D1AE3EBD322E3CC86B7B291D1E0FA13E1995E305
Reporter	abuse_ch
Tags:	exe Neurevt

abuse_ch

Malspam distributing Neurevt:

HELO: ew0.709.maxzizo.ml
Sending IP: 134.209.247.133
From: Oscar Perez <support@the-architect.com>
Subject: Ref- Our PO 389182
Attachment: PO AGU298387.xlsx

Neurevt payload URL:
http://brascase-br.com/~zadmin/lk/a/de.exe

Neurevt C2:
http://brascase-br.com/~zadmin/lk/ca/logout.php

Loki payload URL:
http://winqits.com/~zadmin/re/re.exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/53370/

Detection(s):

PUA.Win.Downloader.Aiis-6803892-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Changing a file

Searching for analyzing tools

Searching for the window

Setting browser functions hooks

Sending a UDP request

Adding an access-denied ACE

Launching a process

Creating a window

Unauthorized injection to a browser process

DNS request

Moving of the original file

Enabling autorun for a service

Firewall traversal

Setting a single autorun event

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Changing settings of the browser security zones

Connection attempt to an infection source

Unauthorized injection to a system process

Enabling autorun

Sending an HTTP POST request to an infection source

Result

Threat name:

Betabot

Detection:

malicious

Classification:

phis.troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/455172

Signature

Antivirus detection for URL or domain

Contains functionality to create processes via WMI

Creates an undocumented autostart registry key

Detected unpacking (overwrites its own PE header)

Hides that the sample has been downloaded from the Internet (zone.identifier)

Hides threads from debuggers

Machine Learning detection for sample

Maps a DLL or memory area into another process

Modifies Internet Explorer zone settings

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Overwrites Windows DLL code with PUSH RET codes

Sample uses process hollowing technique

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

System process connects to network (likely due to code injection or exploit)

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to detect sandboxes and other dynamic analysis tools (window names)

Tries to download HTTP data from a sinkholed server

Writes to foreign memory regions

Yara detected Betabot

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4a87068b0ac096d9472fa021fd6bdfcf7d218ae8716fabc2c027ebd595a2381f/

Threat name:

Win32.Trojan.MintTitirez

Status:

Malicious

First seen:

2020-08-31 09:50:07 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

28 of 29 (96.55%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=jkdqncykyclnsrzpuaq72267z56sdcxiofx2xqwae7v5lfnchapq._file

Result

Malware family:

betabot

Score:

10/10

Tags:

evasion trojan backdoor botnet family:betabot persistence

Link:

https://tria.ge/reports/200831-arbmjxaxlj/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of NtSetInformationThreadHideFromDebugger

Adds Run key to start application

Checks whether UAC is enabled

Drops desktop.ini file(s)

Checks BIOS information in registry

Sets file execution options in registry

BetaBot

Modifies firewall policy service

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/4a87068b0ac096d9472fa021fd6bdfcf7d218ae8716fabc2c027ebd595a2381f

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:	win_betabot_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator