MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84233aff74fa073271364dfebe6389ee18385f40747de4ffa5f437f90b3649a5. 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 File information Comments

SHA256 hash: 84233aff74fa073271364dfebe6389ee18385f40747de4ffa5f437f90b3649a5
SHA3-384 hash: 058c72e407c9d08614004bab836825b71d41b4beb3c7fe8a96260e0673332ae27691c8a0a8c0b877ec8a8916e3da4745
SHA1 hash: ff8fa4e1175c9300d487dea64147b63b9dc65f69
MD5 hash: 786d365a12b76b9083c078f06aea7a2b
humanhash: tango-foxtrot-crazy-foxtrot
File name:726154273_Payment_Invoice.vbs
Download: download sample
Signature NanoCore
File size:555 bytes
First seen:2021-12-03 09:54:34 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12:rVlZoY6aVXaAUzVE4wdMDJ5Y3nLjGTOb5NjyNNwQ+y4OIlC:rVln6aVX5U5EGDMLjywNGN/+y+lC
Threatray 589 similar samples on MalwareBazaar
TLSH T17DF05C299C04AACE0592ED9BC4E70C6FCD1180861E645535A572C2FE834B5CA90AE05D
Reporter abuse_ch
Tags:NanoCore vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
253
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
powershell
Result
Verdict:
SUSPICIOUS
Result
Threat name:
Nanocore njRat BitRAT
Detection:
malicious
Classification:
troj.spyw.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
Contains functionality to log keystrokes (.Net Source)
Creates an autostart registry key pointing to binary in C:\Windows
Creates an undocumented autostart registry key
Detected Nanocore Rat
Detected njRat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Obfuscated command line found
Sigma detected: NanoCore
Sigma detected: Suspicious PowerShell Command Line
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected BitRAT
Yara detected Nanocore RAT
Yara detected Njrat
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 533226 Sample: 726154273_Payment_Invoice.vbs Startdate: 03/12/2021 Architecture: WINDOWS Score: 100 46 nov20126746.duckdns.org 2->46 48 1120bitratnew.duckdns.org 2->48 64 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->64 66 Multi AV Scanner detection for domain / URL 2->66 68 Found malware configuration 2->68 70 14 other signatures 2->70 10 wscript.exe 1 2->10         started        13 aspnet_regsql.exe 2->13         started        15 aspnet_regsql.exe 2->15         started        signatures3 process4 signatures5 72 VBScript performs obfuscated calls to suspicious functions 10->72 74 Wscript starts Powershell (via cmd or directly) 10->74 76 Obfuscated command line found 10->76 17 powershell.exe 14 16 10->17         started        21 conhost.exe 13->21         started        23 conhost.exe 15->23         started        process6 dnsIp7 44 transfer.sh 144.76.136.153, 443, 49739, 49742 HETZNER-ASDE Germany 17->44 58 Creates an undocumented autostart registry key 17->58 60 Writes to foreign memory regions 17->60 62 Injects a PE file into a foreign processes 17->62 25 aspnet_regsql.exe 17->25         started        30 aspnet_regsql.exe 17->30         started        32 aspnet_regsql.exe 17->32         started        34 5 other processes 17->34 signatures8 process9 dnsIp10 50 nov20126746.duckdns.org 185.244.30.6, 49780, 49784, 49788 DAVID_CRAIGGG Netherlands 25->50 40 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 25->40 dropped 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 25->78 80 Uses netsh to modify the Windows network and firewall settings 30->80 82 Modifies the windows firewall 30->82 52 legend4000.duckdns.org 192.3.121.222, 4000, 49762 AS-COLOCROSSINGUS United States 32->52 42 C:\ProgramData\XXX\Microsoft.Exe, PE32 32->42 dropped 84 Creates an autostart registry key pointing to binary in C:\Windows 32->84 36 netsh.exe 32->36         started        54 1120bitratnew.duckdns.org 185.244.30.13, 1120, 49769, 49770 DAVID_CRAIGGG Netherlands 34->54 56 192.168.2.1 unknown unknown 34->56 86 Hides threads from debuggers 34->86 file11 signatures12 process13 process14 38 conhost.exe 36->38         started       
Threat name:
Script-WScript.Trojan.Heuristic
Status:
Malicious
First seen:
2021-12-03 09:55:10 UTC
File Type:
Text (PowerShell)
AV detection:
11 of 45 (24.44%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Blocklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

Visual Basic Script (vbs) vbs 84233aff74fa073271364dfebe6389ee18385f40747de4ffa5f437f90b3649a5

(this sample)

  
Delivery method
Distributed via e-mail attachment

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