MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9ec8e30fe5bac7ee3e9c096fc3702286d6c0fbee3ae1fa4cd7d5a6a411b600e5. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments

SHA256 hash: 9ec8e30fe5bac7ee3e9c096fc3702286d6c0fbee3ae1fa4cd7d5a6a411b600e5
SHA3-384 hash: 32312a730325e77918b9cff8aa0002a63f7e88a73f1b5fd5408b88133e151c3c6e54ea2925294fdfc2fa2283865bbd70
SHA1 hash: 9e1c8c8d3761b3026a0ba2b49f79f7fccbdf29b7
MD5 hash: c5394841f481ecbaa80640e168da88f4
humanhash: social-stairway-jupiter-fanta
File name:BingUpdate.exe
Download: download sample
Signature NanoCore
File size:758'784 bytes
First seen:2020-07-30 07:35:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Wex1+h/KKVKK5KK6CeJL6Loc7fX5xJVc47swRde8/kx88lBxBch9GcPs8:hxkgL6LVbX5xJBswXvsxPODU8
Threatray 1'097 similar samples on MalwareBazaar
TLSH 7AF4271A756F8036CF6B7E3492D785028EA4DE857432CEDE34F0727F0BBAE51A104969
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: norisk-web01.nl
Sending IP: 185.28.57.35
From: Bing Support <support@vlie.com>
Subject: YOUR BING IS OUTDATED
Attachment: BingUpdate.exe

NanoCore RAT C2:
positivemikey.myq-see.com:6512 (185.140.53.12)

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@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-EU3
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-07-28T20:56:03Z
source: RIPE

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253888 Sample: BingUpdate.exe Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 36 positivemikey.myq-see.com 2->36 38 g.msn.com 2->38 40 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->40 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 7 other signatures 2->54 9 BingUpdate.exe 5 2->9         started        13 MSBuild.exe 2 2->13         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\tmpFC36.tmp, XML 9->32 dropped 34 C:\Users\user\AppData\...\&startupname&.exe, PE32 9->34 dropped 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->56 58 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->58 15 MSBuild.exe 8 9->15         started        20 schtasks.exe 1 9->20         started        22 conhost.exe 13->22         started        signatures6 process7 dnsIp8 42 positivemikey.myq-see.com 185.140.53.12, 49737, 49738, 49741 DAVID_CRAIGGG Sweden 15->42 44 192.168.2.1 unknown unknown 15->44 30 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 15->30 dropped 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->46 24 schtasks.exe 1 15->24         started        26 conhost.exe 20->26         started        file9 signatures10 process11 process12 28 conhost.exe 24->28         started       
Threat name:
ByteCode-MSIL.Infostealer.Fareit
Status:
Malicious
First seen:
2020-07-30 07:37:07 UTC
AV detection:
31 of 48 (64.58%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks whether UAC is enabled
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NanoCore
Malware Config
C2 Extraction:
positivemikey.myq-see.com:6512
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
Author:abuse.ch
Rule name:Nanocore
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
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
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.

Malspam

NanoCore

Executable exe 9ec8e30fe5bac7ee3e9c096fc3702286d6c0fbee3ae1fa4cd7d5a6a411b600e5

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments