MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25d7c4fad856957a1a4b2a146221ca5620675edf33eeecb596a2610bb719a45e. 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

NanoCore

Vendor detections: 8

Intelligence 8 IOCs YARA 5 File information Comments

SHA256 hash:	25d7c4fad856957a1a4b2a146221ca5620675edf33eeecb596a2610bb719a45e
SHA3-384 hash:	f0fec1e3533724f2c5918e802dc68d34866c986780af734398a1889faaffc2a05c7127b64a30ce2bb7d7a91e5a6b8693
SHA1 hash:	255d751d7dd17f21c4473bef2d4243c40dc7c426
MD5 hash:	3aee262b694202d20db02f290bb83fc2
humanhash:	pasta-pizza-fanta-artist
File name:	nf4.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	376'832 bytes
First seen:	2020-06-26 08:49:30 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	abb56d587db47f60e3a84a323c610b1b (1 x NanoCore)
ssdeep	6144:R/bg5VECXZtC3JWSqq1YN7/VL7guahA7IV29XXMFeZv3dbYC:R/bg5VnZtEWsYNz9guj7/7v
Threatray	215 similar samples on MalwareBazaar
TLSH	E984E69C7A45C371F81251F43D018AA8D18FED350811AA66F2E75B6C7BB6C8B97E031B
Reporter	abuse_ch
Tags:	exe NanoCore nVpn RAT

abuse_ch

Malspam distributing NanoCore:

HELO: julmarsa.com
Sending IP: 193.56.28.10
From: info@julmarsa.com
Subject: Top Urgent Request for Quotation BW HO 11190/STR/20 Ref# Emailed 24th June 2020
Attachment: BWISM 11190STR20.IMG (contains "nf4.exe")

NanoCore RAT C2:
cashout.ddns.net:1759 (185.140.53.134)

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@FOS-VPN.org'

inetnum: 185.140.53.0 - 185.140.53.255
netname: Freedom_Of_Speech_VPN
remarks: Before you contact us, please read:
remarks: 185.140.53.0/24 belongs to a NON-LOGGING VPN service.
remarks: We don't log any user activities.
remarks: We believe that the right to informational self-determination and the
remarks: right to privacy are essential to all citizens of all countries.
remarks: We don't host anything else on our servers than VPN software and our
remarks: customers can open a fixed number of Ports.
remarks: Like Public WiFi or Tor Exit Node Operators we cannot be held responsible
remarks: for the actions of our customers, because we simply can't (and to be
remarks: honest: don't want) to control them.
country: EU
org: ORG-SL751-RIPE
admin-c: SL12644-RIPE
tech-c: SL12644-RIPE
status: ASSIGNED PA
mnt-by: FOS-VPN-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-04-06T18:59:49Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

NanoCore

Link:

https://www.capesandbox.com/analysis/14810/

Detection(s):

Win.Dropper.NetWire-8264833-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Creating a file in the %AppData% subdirectories

Creating a file in the Program Files subdirectories

Forced shutdown of a system process

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

Unauthorized injection to a system process

Detection:

nanocore

Link:

https://mwdb.cert.pl/sample/25d7c4fad856957a1a4b2a146221ca5620675edf33eeecb596a2610bb719a45e/

Threat name:

Win32.Backdoor.NanoBot

Status:

Malicious

First seen:

2020-06-26 08:51:04 UTC

AV detection:

26 of 31 (83.87%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=exl4j6wyk2kxugslfikgeiokkyqgoxw7gpxoznmwujqqxnyzurpa._file

Verdict:

malicious

Label(s):

azorult

Result

Malware family:

nanocore

Score:

10/10

Tags:

evasion trojan keylogger stealer spyware family:nanocore persistence

Link:

https://tria.ge/reports/200626-zgfvt6tsds/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

Drops file in Program Files directory

Suspicious use of SetThreadContext

Checks whether UAC is enabled

Adds Run entry to start application

NanoCore

Malware Config

C2 Extraction:

cashout.ddns.net:1759

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:	ach_NanoCore Create hunting rule
Author:	abuse.ch

Rule name:	Nanocore Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Nanocore in memory
Reference:	internal research

Rule name:	Nanocore_RAT_Feb18_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Nanocore RAT
Reference:	Internal Research - T2T

Rule name:	Nanocore_RAT_Gen_2 Create hunting rule
Author:	Florian Roth
Description:	Detetcs the Nanocore RAT
Reference:	https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/

Rule name:	win_nanocore_w0 Create hunting rule
Author:	Kevin Breen <kevin@techanarchy.net>

File information

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

44669792918e8502bc3a2d58e4ee32a5

NanoCore

exe 25d7c4fad856957a1a4b2a146221ca5620675edf33eeecb596a2610bb719a45e

(this sample)

Dropped by

MD5 44669792918e8502bc3a2d58e4ee32a5

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/14810/

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