MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21355c7eb596e21724d0a59545db0faf6219b858986cb5b0162201f54288ebb8. 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: 4

Intelligence 4 IOCs YARA 6 File information Comments

SHA256 hash:	21355c7eb596e21724d0a59545db0faf6219b858986cb5b0162201f54288ebb8
SHA3-384 hash:	70fb5cf3e82d9e160fab949ba5c363403e54ef478fc991ab8848ebcf916c1aaeb433e36e2de391403deed1de2e527581
SHA1 hash:	98a65a0a99eda026ce63b4d43a2892cfaaefedb7
MD5 hash:	73f2800cba26412ebd4406ebc4a216fe
humanhash:	timing-wyoming-jig-happy
File name:	PO23062020.xlsm
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	417'260 bytes
First seen:	2020-06-24 05:22:01 UTC
Last seen:	2020-06-24 05:53:04 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	12288:8w49w8fyunGthwu8kxPthZugvq4jzjSGUuH:B49b7AhFxPthZnvL3tH
TLSH	8194233F9398BE9ECAF3EA7D99048AE7231253CD33547CB6685C8888065F12DC171E95
Reporter	abuse_ch
Tags:	NanoCore nVpn RAT xlsm

abuse_ch

Malspam distributing NanoCore:

HELO: semf07.mfg.siteprotect.com
Sending IP: 64.26.60.170
From: Audrey Nelson <info@srus.ca>
Reply-To: prepre080@vivaldi.net
Subject: RESENDING: Quotation Needed
Attachment: PO23062020.xlsm

NanoCore RAT payload URL:
http://habibme.net/nxdd.exe

NanoCore RAT C2:
bright1.awsmppl.com:4777 (79.134.225.103)

Pointing to nVpn:

% Information related to '79.134.225.64 - 79.134.225.127'

% Abuse contact for '79.134.225.64 - 79.134.225.127' is 'abuse@your-vpn.network'

inetnum: 79.134.225.64 - 79.134.225.127
netname: YOUR_VPN_NETWORK
country: DE
remarks: ****************************************************
remarks: This subnet belongs to a VPN service provider.
remarks: We protect the right to privacy, which means
remarks: we don't log the activities of our users.
remarks: ****************************************************
admin-c: EH4074-RIPE
tech-c: YVN10-RIPE
status: ASSIGNED PA
abuse-c: YVN10-RIPE
org: ORG-YVN1-RIPE
mnt-by: AF15-MNT
created: 2019-07-19T18:26:38Z
last-modified: 2019-07-19T18:51:28Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.BehavesLike.Downloader.gc.13458.UNOFFICIAL

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/21355c7eb596e21724d0a59545db0faf6219b858986cb5b0162201f54288ebb8/

Threat name:

Script-Macro.Trojan.SAgent

Status:

Malicious

First seen:

2020-06-24 05:23:03 UTC

AV detection:

14 of 31 (45.16%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ee2vy7vvs3rbojgquwkulwypv5rbtocytbwllmaweia7kqui5o4a._file

Result

Malware family:

nanocore

Score:

10/10

Tags:

evasion trojan keylogger stealer spyware family:nanocore

Link:

https://tria.ge/reports/200624-8mtzdtmyhn/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

NTFS ADS

Suspicious use of SetWindowsHookEx

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: AddClipboardFormatListener

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Checks whether UAC is enabled

Loads dropped DLL

Drops startup file

Blacklisted process makes network request

Executes dropped EXE

Process spawned unexpected child process

NanoCore

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/