MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c6f6041beb87f62289cc92ae1a66023932dde34aad709920a767d72739cc571. 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 7 File information Comments

SHA256 hash:	2c6f6041beb87f62289cc92ae1a66023932dde34aad709920a767d72739cc571
SHA3-384 hash:	8e71b10e7806954286ac6b7beb91aeb67faabd64bd733948545d8e831a94b8cc486706e67bd832c192d422c58bcc4aab
SHA1 hash:	d348e259aa31979be62a7f975eff5104f7b20ffa
MD5 hash:	bbd8f222b9fd0f370f28de0e1bd0868b
humanhash:	lima-georgia-potato-cola
File name:	PO300620.doc
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	72'192 bytes
First seen:	2020-06-30 19:22:13 UTC
Last seen:	2020-06-30 19:52:24 UTC
File type:	doc
MIME type:	application/msword
ssdeep	1536:HX+Vn5YOONLXdvrqth8Q31Gyl0F6LtRb0R:3+Vn5Y5NLItpsU0F6pRb0R
TLSH	AA632A41B383CF4AE46581705CDACBF9723ABC0D4E1AD71732983B2E7DB6764C901A96
Reporter	abuse_ch
Tags:	doc NanoCore nVpn RAT

abuse_ch

Malspam distributing NanoCore:

HELO: semf05.mfg.siteprotect.com
Sending IP: 64.26.60.168
From: Shawn McKay <info@couvretoit.com>
Reply-To: prepre080@vivaldi.net
Subject: RESENDING: Quotation Needed
Attachment: PO300620.doc

NanoCore payload URL:
http://mrgeek.pk/wndll.exe

NanoCore RAT payload URL:
gold1.dnsupdate.info:4777 (79.134.225.84)

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.Heuristic.HEUR.Macro.Downloader.MRDO.Gen.9908.UNOFFICIAL

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/2c6f6041beb87f62289cc92ae1a66023932dde34aad709920a767d72739cc571/

Threat name:

Script-Macro.Trojan.Woreflint

Status:

Malicious

First seen:

2020-06-30 19:24:05 UTC

AV detection:

12 of 31 (38.71%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=frxwaqn6xb7weke4zevodjtaeojs3xruvllqteqkoz6xe444yvyq._file

Result

Malware family:

nanocore

Score:

10/10

Tags:

evasion trojan keylogger stealer spyware family:nanocore

Link:

https://tria.ge/reports/200630-s19hr5s4qn/

Behaviour

Suspicious use of SetWindowsHookEx

NTFS ADS

Script User-Agent

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Checks whether UAC is enabled

Drops startup file

Loads dropped DLL

Executes dropped EXE

NanoCore

Malware Config

C2 Extraction:

gold1.dnsupdate.info:4777
gold080.ooguy.com:4777

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:	SharedStrings Create hunting rule
Author:	Katie Kleemola
Description:	Internal names found in LURK0/CCTV0 samples

Rule name:	SUSP_VBA_FileSystem_Access Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious VBA that writes to disk and is activated on document open
Reference:	Internal Research