MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f94fdbaf430c51b2d97e75c378a7e6cf66fbbe6984cc9348b9369a435fdaa2b1. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f94fdbaf430c51b2d97e75c378a7e6cf66fbbe6984cc9348b9369a435fdaa2b1
SHA3-384 hash: 3149bcc7712bb8cd1b318c39b20dd7ac6ab9baaf30b619f4306f2fa28017e7ab7744adfc05bac6e9d23346245a6e7b42
SHA1 hash: 94fe43ca21bdc4e1e6017b0c4362fe3e84e91c45
MD5 hash: 9a5904cc536cd808a068af2fc608df40
humanhash: jupiter-uniform-tango-saturn
File name:Invoice.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:861'184 bytes
First seen:2020-07-21 16:21:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:hwaWHJ7sjRPqrapFRH3rJZBofOAPr2mRdgStNg7QTLYozHLijGaG1GGGsuGGGGG+:CaysdJ3BpxADTRdNtNgMTLYo
Threatray 1'630 similar samples on MalwareBazaar
TLSH 5F057C00E7B586DAC3AA1F36D871810085B4E95EABE5D78B2B84FEAD749F7540703F12
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: WIN-IBY4DZMXQNV
Sending IP: 103.139.44.26
From: Account Receivable <admin@moxiege.ml>
Reply-To: monicarens171@gmail.com
Subject: Please see attached invoice
Attachment: Invoice.img (contains "Invoice.exe")

NanoCore RAT C2:
u852117.nvpn.to:5638 (185.244.30.126)

Pointing to nVpn:

% Information related to '185.244.30.0 - 185.244.30.255'

% Abuse contact for '185.244.30.0 - 185.244.30.255' is 'abuse@privacyfirst.sh'

inetnum: 185.244.30.0 - 185.244.30.255
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-HU
country: HU
descr: Budapest, Hungary
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-07-17T11:52:57Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/30296/
Detection(s):
SecuriteInfo.com.Generic.mg.9a5904cc536cd808.198.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/393532
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 249091 Sample: Invoice.exe Startdate: 22/07/2020 Architecture: WINDOWS Score: 88 20 Malicious sample detected (through community Yara rule) 2->20 22 Multi AV Scanner detection for dropped file 2->22 24 Sigma detected: Scheduled temp file as task from temp location 2->24 26 4 other signatures 2->26 7 Invoice.exe 10 2->7         started        process3 file4 16 C:\Users\user\AppData\Roaming\vLgWOsm.exe, PE32 7->16 dropped 18 C:\Users\user\AppData\Local\...\tmpD4FC.tmp, XML 7->18 dropped 10 schtasks.exe 1 7->10         started        12 RegSvcs.exe 7->12         started        process5 process6 14 conhost.exe 10->14         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f94fdbaf430c51b2d97e75c378a7e6cf66fbbe6984cc9348b9369a435fdaa2b1/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 16:23:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7fh5xl2dbri3fwl6oxbxrj7gz5tpxptjqtgjgsfzg2negx62ukyq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'620 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/200721-k3czf1ydhn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
u852117.nvpn.to:5638
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f94fdbaf430c51b2d97e75c378a7e6cf66fbbe6984cc9348b9369a435fdaa2b1

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:win_nanocore_w0
Create hunting rule
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.

f9803a84f80a014f754940400c7ec92e

NanoCore

Executable exe f94fdbaf430c51b2d97e75c378a7e6cf66fbbe6984cc9348b9369a435fdaa2b1

(this sample)

  
Dropped by
MD5 f9803a84f80a014f754940400c7ec92e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/30296/

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