MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a
SHA3-384 hash: 35dee5bf17ff403684eb9b3e88df381ea49ee99d111b5641e9079185d942b8c3d81f661032d8aef56433511fff9c4971
SHA1 hash: 03dcacc835c9176203ce0f434456ef696e272737
MD5 hash: bc735416be6de897f268593919e0feee
humanhash: april-uniform-batman-seventeen
File name:cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a
Download: download sample
Signature njrat
Create hunting rule
File size:1'127'936 bytes
First seen:2021-08-30 06:21:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 113 x njrat, 80 x RedLineStealer)
ssdeep 24576:C4YRkxUjuVXr9frfFb9DS09TDaWtDHsICu9nlxyw5bYfUkW3w:C4UkxUjuxd19D1TzDTCuBlxyw5bCUky
Threatray 5 similar samples on MalwareBazaar
TLSH T1853533C375A89B03E4E837F0158CB0C6D57AD5294F4056287AAA68C8327A2ED1FF9F54
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
409
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a
Verdict:
Suspicious activity
Analysis date:
2021-08-30 06:39:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/802b111c-09e6-4c58-81e4-e676bf6b955c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/183503/
Detection(s):
PUA.Win.Packer.EnigmaProtector-19
Create hunting rule

PUA.Win.Packer.EnigmaProtector-1
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Enabling the 'hidden' option for analyzed file
Creating a file in the Windows directory
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process with a hidden window
Creating a window
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Enabling autorun by creating a file
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f8ba5e51-d502-4991-b8e3-49da09052d44
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842070
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious names
Detected njRat
Detected unpacking (changes PE section rights)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Found malware configuration
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Protects its processes via BreakOnTermination flag
Tries to evade analysis by execution special instruction which cause usermode exception
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 474501 Sample: 2O8ylb2eva Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for dropped file 2->43 45 11 other signatures 2->45 8 2O8ylb2eva.exe 1 6 2->8         started        12 server.exe 2 2->12         started        14 server.exe 3 2->14         started        16 server.exe 2 2->16         started        process3 file4 31 C:\Windows\server.exe, PE32 8->31 dropped 33 C:\Windows\server.exe:Zone.Identifier, ASCII 8->33 dropped 35 C:\Users\user\AppData\...\2O8ylb2eva.exe.log, ASCII 8->35 dropped 55 Detected unpacking (changes PE section rights) 8->55 57 Drops executables to the windows directory (C:\Windows) and starts them 8->57 59 Tries to evade analysis by execution special instruction which cause usermode exception 8->59 18 server.exe 2 6 8->18         started        61 Hides threads from debuggers 12->61 signatures5 process6 dnsIp7 37 178.33.93.88, 49707, 49708, 49711 OVHFR France 18->37 27 C:\...\281a8bd618b5257d985063a3658174ac.exe, PE32 18->27 dropped 29 281a8bd618b5257d98...exe:Zone.Identifier, ASCII 18->29 dropped 47 Antivirus detection for dropped file 18->47 49 Multi AV Scanner detection for dropped file 18->49 51 Detected unpacking (changes PE section rights) 18->51 53 9 other signatures 18->53 23 netsh.exe 1 3 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a/
Threat name:
Win32.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-08-19 14:10:49 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
37 of 46 (80.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zmf5frvgt6zfr4ftjptwgxugwn6ueb5luzccaq7zrqkj7xqjmcfa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
47738787dc09377ee3517c66950e1a6c93107d71a591c9b9bdc4f915d13a7c75
njrat
5f3d5f1a734020dabc57565c29f60194eb2a0fd1eba8fd7a041c6329d5803f78
njrat
ab2851b9d96065b01a96c3305a8bbec77522b97a6c751a82a34f47f45f30af6a
njrat
e24f69aa8738d14b85ad76a1783d51120b8b6ba467190fe7d8f96ad2969c8fdf
njrat
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/210830-3bqam6efge/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Drops startup file
Executes dropped EXE
Modifies Windows Firewall
Unpacked files
SH256 hash:
cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a
MD5 hash:
bc735416be6de897f268593919e0feee
SHA1 hash:
03dcacc835c9176203ce0f434456ef696e272737
Link:
https://www.unpac.me/results/e2f1636b-ad88-4162-9cbb-260f3d0af121/
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/cb0bd2c6a69fb258f0b34be7635e86b37d4207aba6442043f98c149fde09608a

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:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat
Rule name:win_smominru_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.smominru.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/183503/

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