MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18cd7de0cac9b4d2ef7e0078fff0f0263859799b0e5ed93a3bb1d50c2c324752. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 18cd7de0cac9b4d2ef7e0078fff0f0263859799b0e5ed93a3bb1d50c2c324752
SHA3-384 hash: e68c876346a2739a65ac6927cfb7a11f76989a8ff3bc446ee8162dbe6213b2716f942b77d4e9a274637228b0dd1a053a
SHA1 hash: e25e51a5ee66f8cd18cb35830509fd95b62b4d40
MD5 hash: 313127fe0be0fa66f400ae7c798f779e
humanhash: crazy-december-december-hamper
File name:S0187365-Paid-Receipt.vbs
Download: download sample
Signature njrat
Create hunting rule
File size:728 bytes
First seen:2021-08-23 17:46:59 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12:0ChGF2MBNYMlXNoxAbOJk82cG2bwELPdg3Nfd+aaiTC:HgF2SNYMlXQXG2UE7kNEuC
Threatray 2'619 similar samples on MalwareBazaar
TLSH T104012B0B5D29CDDB0049F18202D34DEDC6604AA74F806E7A247479476CAD62F6DCCD87
Reporter abuse_ch
Tags:NjRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
561
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/181570/
Detection(s):
SecuriteInfo.com.ISB.Downloadergen76.22188.17229.UNOFFICIAL
Create hunting rule

Result
Verdict:
SUSPICIOUS
Result
Threat name:
Nanocore Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/837726
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)
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
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected MSILLoadEncryptedAssembly
Yara detected Njrat
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 470158 Sample: S0187365-Paid-Receipt.vbs Startdate: 23/08/2021 Architecture: WINDOWS Score: 100 35 dangomra.duckdns.org 2->35 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 10 other signatures 2->47 8 wscript.exe 1 2->8         started        signatures3 process4 signatures5 49 VBScript performs obfuscated calls to suspicious functions 8->49 51 Wscript starts Powershell (via cmd or directly) 8->51 53 Obfuscated command line found 8->53 11 powershell.exe 14 32 8->11         started        process6 dnsIp7 37 transfer.sh 144.76.136.153, 49713, 49716, 80 HETZNER-ASDE Germany 11->37 27 PowerShell_transcr....20210823194928.txt, UTF-8 11->27 dropped 55 Creates an undocumented autostart registry key 11->55 57 Writes to foreign memory regions 11->57 59 Injects a PE file into a foreign processes 11->59 16 aspnet_regbrowsers.exe 11->16         started        21 aspnet_regbrowsers.exe 11->21         started        23 conhost.exe 11->23         started        file8 signatures9 process10 dnsIp11 29 augcavite.duckdns.org 20.185.47.68, 3500, 49725, 49735 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 16->29 31 192.168.2.1 unknown unknown 16->31 25 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 16->25 dropped 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->39 33 dangomra.duckdns.org 21->33 file12 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/18cd7de0cac9b4d2ef7e0078fff0f0263859799b0e5ed93a3bb1d50c2c324752/
Threat name:
Script.Downloader.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2021-08-23 17:47:06 UTC
AV detection:
3 of 45 (6.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ddgx3ygkzg2nf336ab4p74hqey4fs6m3bzpnsor3whkqylbsi5ja._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
620428519e13cbb1c4b3d71c1bce411bf3054e0501358f6b27cc92268d2f420b
njrat
7f1cd16cd2d2e5644752a3e0fd411c3902bad47051779d5bd539e9650f53787c
njrat
89aea7429e8634bbba4d97c8576adb9568cdf91830d15ecd2c34c5a290f7b83f
njrat
a0710f6483cebd22f615c3435ee70a971d490f15c9529c3f2450e3cb73d35a16
njrat
d1b19d456e97bede86d5bbe8c09b027b00c330e568c0474abb3e60ad154bc62d
njrat
f3ca0f6bff094ea564e6b6e7a9947dc6a7a63b1800ec11b64e4e58447cfa61c3
njrat
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
njrat
+ 2'609 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:nanocore family:njrat botnet:hacked keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210823-5wh7144392/
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:
augcavite.duckdns.org:3500
dangomra.duckdns.org:9090
Dropper Extraction:
http://transfer.sh/11VtoSo/hagy.txt
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/18cd7de0cac9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/18cd7de0cac9b4d2ef7e0078fff0f0263859799b0e5ed93a3bb1d50c2c324752

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:PowerShell_Case_Anomaly
Create hunting rule
Author:Florian Roth
Description:Detects obfuscated PowerShell hacktools
Reference:https://twitter.com/danielhbohannon/status/905096106924761088

File information

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

Malspam

njrat

Visual Basic Script (vbs) vbs 18cd7de0cac9b4d2ef7e0078fff0f0263859799b0e5ed93a3bb1d50c2c324752

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/181570/

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