MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7bf28130b0141b6ae9b4b4bb71c7a300d9025944e08db4206eff5d0bc8a3b264. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: 7bf28130b0141b6ae9b4b4bb71c7a300d9025944e08db4206eff5d0bc8a3b264
SHA3-384 hash: 11fbf8d0e0a771b6afac3e3e1d00dac1a447e887b7967722545b399a610c174ed9b62e0550aaf198a0b259a7e22b6852
SHA1 hash: 209d804a5a98ee5cf17d14dc6a12c7489e745d3e
MD5 hash: 3cfa84e55fb3e5719ff7b5c73ad19867
humanhash: victor-five-enemy-lion
File name:shipping instructions.exe
Download: download sample
Signature NanoCore
File size:932'864 bytes
First seen:2021-02-10 07:07:28 UTC
Last seen:2021-02-10 09:24:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:BE12yEogCF4lGN24mSqgRFvMDO7+EXafivMyNJZmn:BLRS4l0BxRqS7++afiUWJg
Threatray 1'790 similar samples on MalwareBazaar
TLSH 0615BE25F64A7735F0A9773788B4977046BEDC219A21E92E3DE8369C14B5BCC44E3E02
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: maisonsdumonde.com
Sending IP: 185.222.57.185
From: info <info@maisonsdumonde.com>
Subject: SHIPPING INSTRUCTIONS MAISONS /victim-domain
Attachment: shipping instructions.iso (contains "shipping instructions.exe")

NanoCore RAT C2:
rex231.duckdns.org:6789 (185.244.30.20)

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
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: 2020-10-07T21:39:48Z
source: RIPE

Intelligence


File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
shipping instructions.exe
Verdict:
Malicious activity
Analysis date:
2021-02-10 07:11:24 UTC
Tags:
rat nanocore

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 dynamic DNS services
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: 351189 Sample: shipping instructions.exe Startdate: 10/02/2021 Architecture: WINDOWS Score: 100 53 rex231.duckdns.org 2->53 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 14 other signatures 2->65 9 shipping instructions.exe 7 2->9         started        12 dhcpmon.exe 4 2->12         started        14 dhcpmon.exe 3 2->14         started        16 MSBuild.exe 2 2->16         started        signatures3 process4 file5 45 C:\Users\user\AppData\...\ppQFidgBmFZRO.exe, PE32 9->45 dropped 47 C:\...\ppQFidgBmFZRO.exe:Zone.Identifier, ASCII 9->47 dropped 49 C:\Users\user\AppData\Local\...\tmp437C.tmp, XML 9->49 dropped 51 C:\Users\...\shipping instructions.exe.log, ASCII 9->51 dropped 18 MSBuild.exe 1 11 9->18         started        23 schtasks.exe 1 9->23         started        25 conhost.exe 12->25         started        27 conhost.exe 14->27         started        29 conhost.exe 16->29         started        process6 dnsIp7 55 rex231.duckdns.org 185.244.30.20, 49720, 49722, 49727 DAVID_CRAIGGG Netherlands 18->55 57 192.168.2.1 unknown unknown 18->57 41 C:\Users\user\AppData\Roaming\...\run.dat, data 18->41 dropped 43 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->43 dropped 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->67 31 schtasks.exe 1 18->31         started        33 schtasks.exe 1 18->33         started        35 conhost.exe 23->35         started        file8 signatures9 process10 process11 37 conhost.exe 31->37         started        39 conhost.exe 33->39         started       
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Status:
Malicious
First seen:
2021-02-10 04:07:14 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore keylogger persistence ransomware spyware stealer trojan
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
rex231.duckdns.org:6789
Unpacked files
SH256 hash:
71fc2a758df26fa561a9491c241ebc6bc8957d464440091089d62f305167a22a
MD5 hash:
1b1ee2e1cc2079a588f3d6b21353c67d
SHA1 hash:
35fe4b3b22b8cfe4e83dec987ebd408414f115d7
SH256 hash:
fd485a264e11b28badddb4321e579a0de07ecd178dc1693dfe69271494f6ed2d
MD5 hash:
401d691106e3ebfc33bd4d801367b232
SHA1 hash:
28814e8bffa8ea3a242e488889a538067d291b8b
Detections:
win_nanocore_w0
SH256 hash:
60991e1920ee369bdd693d500590855f0b1805ef830f762e55b6c508db8e7d5a
MD5 hash:
1d5c1a2e830961f189a772496b812438
SHA1 hash:
0dc53407a9b0c22df7444bbe0f1b1843be0cc445
SH256 hash:
7bf28130b0141b6ae9b4b4bb71c7a300d9025944e08db4206eff5d0bc8a3b264
MD5 hash:
3cfa84e55fb3e5719ff7b5c73ad19867
SHA1 hash:
209d804a5a98ee5cf17d14dc6a12c7489e745d3e
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
Author:jeFF0Falltrades
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 7bf28130b0141b6ae9b4b4bb71c7a300d9025944e08db4206eff5d0bc8a3b264

(this sample)

  
Delivery method
Distributed via e-mail attachment

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