MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3af31c6189cda43a19d25bc54b76cad9a466ab8f7a8faf12dbf77ecf7d7c31bf. 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 1 File information Comments

SHA256 hash:	3af31c6189cda43a19d25bc54b76cad9a466ab8f7a8faf12dbf77ecf7d7c31bf
SHA3-384 hash:	97f736f8daedac26c369d17d0b34a6bb3484c618440a37f39e28c35ffff91b9dd09241ceed52a78d206ee356c4c0635a
SHA1 hash:	3b1440b23ab11df5393101f4708f3e408eb0cc69
MD5 hash:	00cc57b7d9aabe0da1bdd2e2277b4d26
humanhash:	jupiter-lithium-pennsylvania-batman
File name:	PI 097663899.xlsx
Download:	download sample
Signature	Neurevt Create hunting rule
File size:	676'352 bytes
First seen:	2020-08-28 06:39:31 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	12288:llrMbA8YdNVbEIRe1VrSH+4TvVFoGHgN2DpaHXXTjCj262X/jpHc6OBwKOI8q30h:lCGVbEseTc+4jHgNHf62XVeOM8qE
TLSH	31E423EA37C8DF03C7DF4939646D4AE5C57AFE99238AE80B6605F24025BC67174E2341
Reporter	abuse_ch
Tags:	CVE-2017-11882 Neurevt xlsx

abuse_ch

Malspam distributing Neurevt:

HELO: send0.debbes.com
Sending IP: 192.81.217.142
From: Winnie Huang <sales@debbes.com>
Subject: RE: PO-RFQ # 097663899 NEW ORDER
Attachment: PI 097663899.xlsx

Neurevt payload URL:
http://brascase-br.com/~zadmin/div/md.exe

Neurevt C2:
http://brascase-br.com/~zadmin/lk/hdd/logout.php?page=78

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 in the %AppData% subdirectories

Creating a file

Launching cmd.exe command interpreter

Launching the default Windows debugger (dwwin.exe)

Forced system process termination

Sending an HTTP GET request

Launching a file downloaded from the Internet

Unauthorized injection to a system process

Creating a process from a recently created file

Result

Threat name:

Unknown

Detection:

malicious

Classification:

n/a

Score:

56 / 100

Link:

https://www.joesandbox.com/analysis/453311

Signature

Multi AV Scanner detection for submitted file

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3af31c6189cda43a19d25bc54b76cad9a466ab8f7a8faf12dbf77ecf7d7c31bf/

Threat name:

Document-Office.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2020-08-28 06:41:06 UTC

AV detection:

16 of 29 (55.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hlzryymjzwsdugoslpcuw5wk3gsgnk4ppkh26ew3657m67l4gg7q._file

Result

Malware family:

betabot

Score:

10/10

Tags:

persistence evasion trojan backdoor botnet family:betabot

Link:

https://tria.ge/reports/200828-z6nk84msz2/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

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

Loads dropped DLL

Uses the VBS compiler for execution

Blacklisted process makes network request

Executes dropped EXE

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:

Exploit

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/3af31c6189cda43a19d25bc54b76cad9a466ab8f7a8faf12dbf77ecf7d7c31bf

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.