MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d640aaed45572292fa71da3eb6ce272b6b784760f1b1f0ef29ea92b7dd3eee25. 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: 5

Intelligence 5 IOCs YARA 1 File information Comments

SHA256 hash:	d640aaed45572292fa71da3eb6ce272b6b784760f1b1f0ef29ea92b7dd3eee25
SHA3-384 hash:	73156aeaa5a5bc45ff2f136ba07151bfc4317b98efe1b67030fdd5f83985e8b8b7f1f17b5db04e4f811ce7c8cd4038c2
SHA1 hash:	43c28c75db69a0881938d052236e7d52203f18b4
MD5 hash:	e8d773b70b47a58c29d0df2c3548f10f
humanhash:	kitten-bulldog-johnny-solar
File name:	Revised PI-9080120.xlsx
Download:	download sample
Signature	Neurevt Create hunting rule
File size:	714'752 bytes
First seen:	2020-09-08 07:12:29 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	12288:8qPsdwwBjm5YNzgm8DK7DTmP3/aCdK77BEWV9fsGJ/uRy4aNYaKQ8:HPsdwKqDK7uPpdKfKGtmRyoQ
TLSH	C9E423AAF9418E3FC33B5DF046A51A26EC1DED132581E0DB76B173D200B1B6494E6E4B
Reporter	abuse_ch
Tags:	Neurevt xlsx

abuse_ch

Malspam distributing Neurevt:

HELO: giardinis.com
Sending IP: 134.122.120.2
From: sales07 <sales07@giardinis.com>
Subject: 回复：PO Quotation and Vietnam New order
Attachment: Revised PI-9080120.xlsx

Neurevt payload URL:
http://eastexs.com/~zadmin/div/md.exe

Neurevt C2:
http://eastexs.com/~zadmin/lk/ev/logout.php

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

PUA.Doc.Packed.EncryptedDoc-6563700-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

DNS request

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Creating a file

Launching the default Windows debugger (dwwin.exe)

Launching a file downloaded from the Internet

Sending an HTTP GET request to an infection source by exploiting the app vulnerability

Creating a process from a recently created file

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d640aaed45572292fa71da3eb6ce272b6b784760f1b1f0ef29ea92b7dd3eee25/

Threat name:

Document-Office.Exploit.MathTypeObfs

Status:

Malicious

First seen:

2020-09-08 00:53:47 UTC

AV detection:

17 of 48 (35.42%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=2zakv3kfk4rjf6tr3i7lntrhfnvxqr3a6gy7b3zj5kjlpxj65ysq._file

Result

Malware family:

n/a

Score:

4/10

Tags:

n/a

Link:

https://tria.ge/reports/200908-fjsmtsqpaj/

Behaviour

Launches Equation Editor

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

NSIS installer

Program crash

Drops file in Windows directory

Loads dropped DLL

Uses the VBS compiler for execution

Blacklisted process makes network request

Executes dropped EXE

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Exploit

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/d640aaed45572292fa71da3eb6ce272b6b784760f1b1f0ef29ea92b7dd3eee25

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.