MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4
SHA3-384 hash: a30075de3e5917a6e7eb67fd907efbd453dbcb95c62beefabbac7d7e0e44d8f97c437cc9e20784bf2643a3afb69b8852
SHA1 hash: 4fa2336c977d16a1eed486e99ddd0d35de50ef93
MD5 hash: 73131cc3ae58fbc815ee6e55acfd414e
humanhash: alaska-fruit-magnesium-winter
File name:Yh95103H.exe
Download: download sample
Signature njrat
Create hunting rule
File size:32'256 bytes
First seen:2020-10-09 18:02:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'604 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:SUkBm13hewzxLy7g3Wvo7Rv6VQmIDUu0ti37ugj:MGfJxCQVkKrj
Threatray 33 similar samples on MalwareBazaar
TLSH 35E22BADFBE64465D2BD0AB50571950053B4E003E523F67E4ECB24A72B2B7D84B88DF2
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69610/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Creating a window
DNS request
Connection attempt
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/487054
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
Contains functionality to log keystrokes (.Net Source)
Detected njRat
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 295975 Sample: Yh95103H.exe Startdate: 09/10/2020 Architecture: WINDOWS Score: 100 21 taqtaqihewa0.ddns.net 2->21 25 Malicious sample detected (through community Yara rule) 2->25 27 Antivirus detection for dropped file 2->27 29 Antivirus / Scanner detection for submitted sample 2->29 31 10 other signatures 2->31 9 Yh95103H.exe 1 4 2->9         started        signatures3 process4 file5 19 C:\Users\user\AppData\...\Runtime Broker.exe, PE32 9->19 dropped 12 Runtime Broker.exe 1 4 9->12         started        process6 dnsIp7 23 taqtaqihewa0.ddns.net 185.14.251.204, 49742, 49743, 49752 NEWROZ-TELECOM-ASNIQ Iraq 12->23 15 netsh.exe 1 3 12->15         started        process8 process9 17 conhost.exe 15->17         started       
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-10-09 18:04:06 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fbnwoagzqol5v6qiqftrb3wjojcapve6e4bel2njstc65d42ic2a._file
Verdict:
malicious
Similar samples:
23ee36c32f198966a793d71f9e2f0b4e0b8c1429202f38f2fab3a25c692c5c64
njrat
434c3b5ab0a2b53e04e4cdf6df69ab626919e3f5b9cffde95e178fe975d463b4
njrat
4b9c636319829a3520de0d883dbdd5c6551351b0500f13c485332e32d218bf31
njrat
884ef8d4d49a6c98b25f93302c1f5d56ba1bfcf73364ee0e641d94c5b300deef
njrat
88e03236b248d004923161c7928a1546cdffd0b6e8c30a22b1d49b05dca9b2da
njrat
add917bfad27d146fd9ba96c674fcd8b1b6dc618136f52eabfcee381f6768f6a
njrat
b19df7069dc2884dc94026608f9fd4bd3f0f2543802c41dc19b78474c866d2e6
njrat
b7ae7f4453b062073d68146727f16af5d57d39758fd3f0fd7c067ba78eb27b97
njrat
d6969e5a50e04cb9bc0a97c3e6dd22d48580bb22f9408d3fc905882d45fcd01b
njrat
f19a67d1bda5510ca74f5a345ce1dfae91949bdfa6cfec36d4df2bc5f6f08a69
njrat
+ 23 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
evasion persistence trojan family:njrat
Link:
https://tria.ge/reports/201009-15n9sqln9a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4
MD5 hash:
73131cc3ae58fbc815ee6e55acfd414e
SHA1 hash:
4fa2336c977d16a1eed486e99ddd0d35de50ef93
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/7b7e1381-c9d9-42e3-ab68-70d7b5291e55/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4

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:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter
Description:Identify njRat

File information

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

Web download

njrat

Executable exe 285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4

(this sample)

  
Link
https://www.virustotal.com/gui/file/285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/69610/

Comments