MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21cef6da04f726523131dbde12855b6d1d6d65cc9b0075d05b90b7636b56c8da. 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

NetWire

Vendor detections: 8

Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash:	21cef6da04f726523131dbde12855b6d1d6d65cc9b0075d05b90b7636b56c8da
SHA3-384 hash:	a8af13ca87d243c5bac5ff4fabee34ccee55c85365e976ab8320dfb4dbcdedf4bc7d8ea95521d0701405b604f120fdf4
SHA1 hash:	2485386cfcbd5ced1d0457f1388c8963c4d51dfd
MD5 hash:	25ede3b274752bd243cd1bd128981457
humanhash:	fillet-one-uniform-december
File name:	76456765.exe
Download:	download sample
Signature	NetWire Create hunting rule
File size:	664'820 bytes
First seen:	2020-08-03 12:48:39 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	5b07fe93f682d6b1b3b4d415582d568f (2 x RemcosRAT, 2 x Formbook, 1 x Loki)
ssdeep	12288:+RxUDS00+p4VA3RX2+pTJc01omVeu4066CEj:+RxKd+A3RX20qfa006
Threatray	495 similar samples on MalwareBazaar
TLSH	BCE4A023F6E18837C573297C5D5B96A8AF25BE112A38684E2FE40D4C8F396513D390DB
Reporter	abuse_ch
Tags:	exe NetWire nVpn RAT

abuse_ch

Malspam distributing NetWire:

From: doris.sun <doris.sun@dl-hb.net>
Subject: RFQ_76456765
Attachment: RFQ_76456765.rar (contains "76456765.exe")

NetWire RAT C2:
okamoto.hopto.org:3871 (194.5.97.15)

Pointing to nVpn:

% Information related to '194.5.97.0 - 194.5.97.255'

% Abuse contact for '194.5.97.0 - 194.5.97.255' is 'abuse@kgb-vpn.org'

inetnum: 194.5.97.0 - 194.5.97.255
netname: NET-NINAZU
remarks: ------------------------------------------
remarks: * This network is used for a VPN service.
remarks: * No logs are stored in any shape or form.
remarks: ------------------------------------------
country: EU
admin-c: NVS100-RIPE
tech-c: NVS100-RIPE
org: ORG-NVS2-RIPE
mnt-by: NINAZU-MNT
status: SUB-ALLOCATED PA
created: 2018-07-23T09:31:45Z
last-modified: 2020-08-02T13:13:48Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

321

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/37809/

Detection(s):

PUA.Win.Adware.Slugin-6803969-0

PUA.Win.Adware.Slugin-6840354-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

DNS request

Sending a custom TCP request

Creating a file

Setting a single autorun event

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/21cef6da04f726523131dbde12855b6d1d6d65cc9b0075d05b90b7636b56c8da/

Threat name:

Win32.Trojan.Delf

Status:

Malicious

First seen:

2020-08-03 12:50:08 UTC

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ehhpnwqe64tfemjr3ppbfbk3nuow2zomtmahluc3sc3wg22wzdna._file

Verdict:

malicious

Label(s):

netwirerc

Result

Malware family:

netwire

Score:

10/10

Tags:

persistence botnet stealer family:netwire

Link:

https://tria.ge/reports/200803-r76nxajkdn/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Netwire

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/21cef6da04f726523131dbde12855b6d1d6d65cc9b0075d05b90b7636b56c8da

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