MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63ffc920c99c00673877a870e745cd73a11892a464bb04f484d6b166db7fd1d4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 63ffc920c99c00673877a870e745cd73a11892a464bb04f484d6b166db7fd1d4
SHA3-384 hash: 78e884f24d518f292a5dd1586b41dedf3dff4ed181e526d13dee74f32535127f45398bc9eea17c93dc86a143f3d721b1
SHA1 hash: 7d176437dff838f9b32bbd65cbd69baebf2dcca5
MD5 hash: 4a128c26bd199b4589e2cb81ccb55a09
humanhash: five-minnesota-nuts-ceiling
File name:Proposal_#Invoice.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:476'160 bytes
First seen:2020-05-01 14:47:07 UTC
Last seen:2020-05-01 15:55:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:gMgTOqNIzYfFtUQHYOT2p1Js7hFOm7U3/Q33QUQDKqKGg9PI/2FLTu/RUoL6vf3Q:xYdtmje3IPqAUOK4g9wcLh2PH
Threatray 1'130 similar samples on MalwareBazaar
TLSH 18A4C06607D85A2BE7FE0779D0E86480D3F9A517B6CBF75D899049F82C82B44EC82163
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: ideeseet.com
Sending IP: 45.95.169.220
From: Mohammad Nowfal <muhamfal@ezdeharind.com>
Subject: Re: ABNG-#INVOICE COPY
Attachment: Proposal_Invoice.iso (contains "Proposal_#Invoice.exe")

NanoCore RAT C2:
yusufeddy.ddns.net:5050 (185.244.30.21)

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@FOS-VPN.org'

inetnum: 185.244.30.0 - 185.244.30.255
netname: Freedom_Of_Speech_Foundation_Hungary
remarks: Budapest, Hungary
country: HU
org: ORG-FOSF3-RIPE
admin-c: FOSF1-RIPE
tech-c: FOSF1-RIPE
status: ASSIGNED PA
mnt-by: FOS-VPN-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-04-06T19:58:39Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Siggen9.43686.14874.4394.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-01 14:14:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
25 of 31 (80.65%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mp74sigjtqagoodxvbyooronooqrrevems5qj5ee22ywnw372hka._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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+ 1'120 additional samples on MalwareBazaar
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: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.

Malspam

NanoCore

iso f7753784e4dabe379b07f6223eb803ccfbc01beb51c820c762d969ffae231883

NanoCore

Executable exe 63ffc920c99c00673877a870e745cd73a11892a464bb04f484d6b166db7fd1d4

(this sample)

  
Dropped by
MD5 e12ef3b3eea6051f9ffbc2e14cd9dfc8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 f7753784e4dabe379b07f6223eb803ccfbc01beb51c820c762d969ffae231883

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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