MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb923f272e0296a32c82331b4e12de37280c80d7cf320084f2a4e621f4387de8. 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:	cb923f272e0296a32c82331b4e12de37280c80d7cf320084f2a4e621f4387de8
SHA3-384 hash:	874fde4c3b14070ae63c227a3f832a5b007383f0c2bd4bc54837f874ffe5de17f0664674169428c7f0ad6172c1c9bbef
SHA1 hash:	7526c1203162f2a3990f2c6fbf05f04285656890
MD5 hash:	3a5cdf21cf0ec71679ff0b75b52dba37
humanhash:	hamper-diet-artist-six
File name:	INQUIRY ABS_ES200483948.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	372'736 bytes
First seen:	2020-05-10 14:24:52 UTC
Last seen:	2020-05-10 14:51:01 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	6144:qrWnDZkgmU/2le+DbMG1pWci80/PKsFu+XBeIvAXSfgIi+61AWZC2:1Zkgmxl7DQGTAxTeIAmsAOC2
Threatray	1'302 similar samples on MalwareBazaar
TLSH	3184D0003DAD6239F0598BB608E1E161D77BB66772A9E33D4C99418B0AD2F81C9C1F77
Reporter	abuse_ch
Tags:	exe NanoCore RAT

abuse_ch

Malspam distributing NanoCore:

HELO: smtpauth-dc2.online.net
Sending IP: 62.210.16.40
From: Gitze Hempe-Niemeyer <enqt@decoramic.co.uk>
Subject: FW: Inquiry No. ABS_ES200483948,
Attachment: INQUIRY ABS_ES200483948.gz (contains "INQUIRY ABS_ES200483948.exe")

NanoCore RAT C2:
185.140.53.13:6384

Hosted on 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(s):

SecuriteInfo.com.Trojan.Siggen9.45399.26093.14112.UNOFFICIAL

Gathering data

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-05-10 14:35:55 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 31 (77.42%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=zojd6jzoaklkglecgmnu4ew6g4uazagxz4zabbhsuttcd5bypxua._file

Verdict:

malicious

Label(s):

nanocorerat

NanoCore

13bcf525a0617b8107fa61cd8fc1b47bf37c7a91291c3a68724cf3edac4aeab7

NanoCore

23fbda6615005156d204371982d99be45fea990cf58dd637d8e5ec6550347346

NanoCore

40b64f01b9da5a5fdafaeae7226eb911ec29c6ecddd24aae32465f0c3b97fac5

NanoCore

47519bc3ffcdb7d45e568197d6a224dc781db2666660ec2e1d0e791fe9f762fd

NanoCore

6c9286bcdd8b19eeb511081542ebc58f81f3f354f13aa3e076f22443b3013fd9

NanoCore

741f3a690a9f6efc608f0c310e7e8d3ddfd2aabc4272e1e714d68647faa3c3e8

NanoCore

e2441bea072dce22af4853106891cb87d314461749fde2b31a0f6b3521e5daa3

NanoCore

f14e610ce7a0f34784a09f45d686d3509c7bc53d0a0c7fb88427d650b44ba8f5

NanoCore

f7bb01e6cdd242b59f4095d3a7d6398105b3030f87ae40f33932265ff520a954

NanoCore

+ 1'292 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-ajwjele522/

Behaviour

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

Checks whether UAC is enabled

NanoCore

Malware Config

C2 Extraction:

185.140.53.13:6384

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/