MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5325cdea20361dac7b59b75dd03c25274ae0e40629155f1112ce71549bf0b3e8. 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



njrat


Vendor detections: 8


Intelligence 8 IOCs YARA 14 File information Comments

SHA256 hash: 5325cdea20361dac7b59b75dd03c25274ae0e40629155f1112ce71549bf0b3e8
SHA3-384 hash: 2dbd5fbcd25b478832904587d7c538d5078f65e62947557e0259574db64d05832b19506345036b00dd6bf75072496c95
SHA1 hash: d7207edd68b9738e0a2cd72a0d5f776b422ad4aa
MD5 hash: 5c2290800ac60e5db0f93e754d78286e
humanhash: winner-chicken-edward-sixteen
File name:A719830-Paid-Receipt.vbs
Download: download sample
Signature njrat
File size:729 bytes
First seen:2021-08-23 17:48:27 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12:0ChGF2MBNMnXNoxAbOJk82cG2bwELPdg3Nfd+aaiTC:HgF2SNMnXQXG2UE7kNEuC
Threatray 2'619 similar samples on MalwareBazaar
TLSH T1BB012B0A5D29CDDB0059F18642C38DE9C6604BA74F806E7A2478794B6DED22F6DCCD87
Reporter abuse_ch
Tags:NjRAT RAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
568
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
SUSPICIOUS
Result
Threat name:
Nanocore Njrat
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Sigma detected: NanoCore
Sigma detected: Suspicious PowerShell Command Line
Sigma detected: Suspicious PowerShell Keywords
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Nanocore RAT
Yara detected Njrat
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 470163 Sample: A719830-Paid-Receipt.vbs Startdate: 23/08/2021 Architecture: WINDOWS Score: 100 35 dangomra.duckdns.org 2->35 37 augcavite.duckdns.org 2->37 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 10 other signatures 2->49 8 wscript.exe 1 2->8         started        signatures3 process4 signatures5 51 VBScript performs obfuscated calls to suspicious functions 8->51 53 Wscript starts Powershell (via cmd or directly) 8->53 55 Obfuscated command line found 8->55 11 powershell.exe 14 31 8->11         started        process6 dnsIp7 39 transfer.sh 144.76.136.153, 49707, 49710, 80 HETZNER-ASDE Germany 11->39 27 PowerShell_transcr....20210823195620.txt, UTF-8 11->27 dropped 57 Creates an undocumented autostart registry key 11->57 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 16 aspnet_regbrowsers.exe 11->16         started        21 aspnet_regbrowsers.exe 11->21         started        23 conhost.exe 11->23         started        file8 signatures9 process10 dnsIp11 25 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 16->25 dropped 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->41 29 augcavite.duckdns.org 20.185.47.68, 3500, 49729, 49730 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->29 31 dangomra.duckdns.org 21->31 33 192.168.2.1 unknown unknown 21->33 file12 signatures13
Threat name:
Script.Downloader.Heuristic
Status:
Malicious
First seen:
2021-08-23 17:49:06 UTC
AV detection:
3 of 45 (6.67%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:nanocore family:njrat botnet:hacked keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Blocklisted process makes network request
NanoCore
njRAT/Bladabindi
Malware Config
C2 Extraction:
dangomra.duckdns.org:9090
augcavite.duckdns.org:3500
Dropper Extraction:
http://transfer.sh/1QlhJ37/bypss.txt
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:CN_disclosed_20180208_c
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_attrib
Author:ditekSHen
Description:Detects executables using attrib with suspicious attributes attributes
Rule name:MALWARE_Win_NjRAT
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
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:Njrat
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Rule name:PowerShell_Case_Anomaly
Author:Florian Roth
Description:Detects obfuscated PowerShell hacktools
Reference:https://twitter.com/danielhbohannon/status/905096106924761088
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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.

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