MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c9dfb93d93361ea136934230b8845e4a14c13caf2f6c2d0ad36c6decc60baf2. 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: 5

Intelligence 5 IOCs YARA 5 File information Comments

SHA256 hash:	8c9dfb93d93361ea136934230b8845e4a14c13caf2f6c2d0ad36c6decc60baf2
SHA3-384 hash:	464069c8d457fe59ea96f4e513c2a0d734470af782c202faad3efbaf7c4f6ddb4b7da9587382e835d7b4f863ebfb2182
SHA1 hash:	03f42d0eeaba6824b1f421778fc5e0ea79be0d22
MD5 hash:	9b9627b4bfae38be403209e593c0cfe1
humanhash:	blue-freddie-carpet-island
File name:	SF express,pdf.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	815'616 bytes
First seen:	2020-05-21 09:11:01 UTC
Last seen:	2020-05-21 09:51:34 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	6144:V7s/7xAae0vC3pZK9iAWILQq05xzO5NlhBbGvdlZFk7AxS8KhJhcX0Xc0hE5I3+n:V7cmZ+i7XqCxuvX+uAxS8Bd0O4vuzU8
Threatray	1'194 similar samples on MalwareBazaar
TLSH	38051829635182BECB772BB5E421C81411A75F305C389B6E3CB631299F32F5D7E0693A
Reporter	abuse_ch
Tags:	exe NanoCore nVpn RAT

abuse_ch

Malspam distributing NanoCore:

HELO: server.kanal77.com.mk
Sending IP: 195.201.106.91
From: SF Express <informations@sf-express.com>
Subject: Your parcel from China has arrived at our office (Parcel from Mr. Zhang Wei).
Attachment: SF express,pdf.iso (contains "SF express,pdf.exe")

NanoCore RAT C2:
megida123.ddns.net:9900 (91.193.75.15)

Pointing to nVpn:

% Information related to '91.193.75.0 - 91.193.75.255'

% Abuse contact for '91.193.75.0 - 91.193.75.255' is 'abuse@kgb-vpn.org'

inetnum: 91.193.75.0 - 91.193.75.255
netname: NON-LOGGING-VPN-SERVICE
descr: Please note that we don't store any user data.
descr: Our main effort is not to make money, but to preserve values like the
descr: freedom of expression, the freedom of press, the right to data protection
descr: and informational self-determination.
descr: We ask all employees of Spamhaus and all self-proclaimed deputy sheriffs
descr: to stop your attacks against us.
country: EU
admin-c: KA7109-RIPE
tech-c: KA7109-RIPE
org: ORG-KHd1-RIPE
status: ASSIGNED PI
mnt-by: RIPE-NCC-END-MNT
mnt-by: KGB-MNT
mnt-routes: KGB-MNT
sponsoring-org: ORG-MW1-RIPE
created: 2012-06-04T11:05:55Z
last-modified: 2019-12-05T05:39:00Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Trojan.PWS.Siggen2.49161.8483.4375.UNOFFICIAL

Gathering data

Threat name:

ByteCode-MSIL.Trojan.Frs

Status:

Malicious

First seen:

2020-05-21 04:42:32 UTC

AV detection:

21 of 31 (67.74%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=rso7xe6zgnq6ue3jgqrqxccf4squye6k6l3mfufng3dn5tdaxlza._file

Verdict:

malicious

Label(s):

nanocorerat

NanoCore

3cad8abfd66f6df4932c89a68f71e666568d74cb9260b05984294d1675e2d838

NanoCore

3ce06fdf5477c3138f03977f72703a45d01d18764116f95fd41c8a8c9adfbad2

NanoCore

4b79e7e85db7e6ca12698dc2ed7fd015385c09463cf9c572fab285026d07c818

NanoCore

5df1a3e64559a1056fd1cac70e1b6bbf236eca17c1c3a5e59f1c329710b42dbb

NanoCore

7444ab9fc7b27261318ff916c2c3e41874d1f57afd1a0a73815bdba0ecdf2687

NanoCore

b7f8ca6215aa2beba2bc30780a8df2618a117ec958319a8b139bdca2480a879c

NanoCore

da724467df8f1c1cb077ad7879ad8790cdef010eab22b382fbd2ed6e87696d87

NanoCore

e0e75410c585dcaeab1ac774bf62f0ccc55ec32e009fdf75a8f089438e5b65e7

NanoCore

e15522c5644ab29fbf7093539560bf2f43d72d6e702159eb0e656c30154cfe42

NanoCore

+ 1'184 additional samples on MalwareBazaar

Result

Malware family:

nanocore

Score:

10/10

Tags:

family:nanocore evasion keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/201109-ymjl2nmz52/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Drops file in Program Files directory

Suspicious use of SetThreadContext

Adds Run key to start application

Maps connected drives based on registry

Checks BIOS information in registry

Looks for VMWare Tools registry key

Looks for VirtualBox Guest Additions in registry

NanoCore

Malware Config

C2 Extraction:

megida123.ddns.net:9900

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/