MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87902fd490b189d4ceb81a430fd47d852bf503f373c6ff3caa70a80a9c7d56c6. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87902fd490b189d4ceb81a430fd47d852bf503f373c6ff3caa70a80a9c7d56c6
SHA3-384 hash: 599ddba0431d0149fa2ffd8230150049095185f3894edb2c0be2b2b3d9b0b4176f1bf5d49f0c40e3a564064b83f7826a
SHA1 hash: 4c24c2726672197c30768e27a76e3b660a21e4c5
MD5 hash: 322172242f755abaa396aa21be344219
humanhash: mockingbird-aspen-hamper-arkansas
File name:TNfLVnXB.exe
Download: download sample
Signature njrat
Create hunting rule
File size:33'280 bytes
First seen:2020-09-27 11:17:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:CgcYjokkFaOKzsiIyr0NNgnnhFPIS2TQIDlDfodg9TdFpyFEIGsJjwE7UMcrie4Y:5cl/fyr0UTYxouDbEEIGfRNU+f
Threatray 79 similar samples on MalwareBazaar
TLSH 29E2085CA6E38154D07D85B785A6E31117B4E1675323E26FCED868E22F671C88E8CDE0
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/66243/
Detection(s):
Win.Trojan.Ratenjay-1
Create hunting rule

Win.Trojan.Bladabindi-6192388-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Dropper.njRAT-7436651-0
Create hunting rule

Win.Packed.njRAT-7672853-1
Create hunting rule

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
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/476053
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)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
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
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
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 290476 Sample: TNfLVnXB.exe Startdate: 27/09/2020 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for dropped file 2->38 40 14 other signatures 2->40 8 TNfLVnXB.exe 1 5 2->8         started        11 Haunted cheats.exe 3 2->11         started        13 Haunted cheats.exe 2 2->13         started        15 Haunted cheats.exe 2 2->15         started        process3 file4 28 C:\Users\user\AppData\...\Haunted cheats.exe, PE32 8->28 dropped 30 C:\Users\user\AppData\...\TNfLVnXB.exe.log, ASCII 8->30 dropped 17 Haunted cheats.exe 4 5 8->17         started        process5 dnsIp6 32 mikus293.ddns.net 79.135.146.203, 49718, 8808 MICROLINES-ASLV Latvia 17->32 26 C:\...\a895300ed0d29139b7cc1f693aa150b9.exe, PE32 17->26 dropped 42 Creates autostart registry keys with suspicious names 17->42 22 netsh.exe 3 17->22         started        file7 signatures8 process9 process10 24 conhost.exe 22->24         started       
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/87902fd490b189d4ceb81a430fd47d852bf503f373c6ff3caa70a80a9c7d56c6/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-09-27 11:19:05 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6ic7veqwge5jtvydjbq7vd5quv7ka7topdp6pfkocuavhd5k3da._file
Verdict:
malicious
Similar samples:
01358d994a9b8492098755032c39464908e6559899314a3bbee6bf1aa530c9ce
njrat
0ab3b273902918a617fca743185cdcae29f33be32324e761033038ce9d9ead60
njrat
285dcd9b0932523c95f28a8373a0018d44c9a9401d3ab410132a13642d8c59ef
njrat
4bc86416896092dc2a2ba5fce94147525f54cb8752b52c8f9592fc097cd5516b
njrat
6a53a62fe35949c47d638b8e3c8e1b5177bb413eef9159a069a87658d503350c
njrat
b2f041348835c102db3769245ee4c28dd00cb19c3c6710fc9c11228f3bbce61b
njrat
bc4660dc237469fbc12b99b5d83f007b4ea49932046adecc5cbb64a4dc2f10ec
njrat
c109366180776e966bf583094eb32b88fc86af5eb1400ccce77fea1518f1d164
njrat
e81b5aa4d6cc953a6fa155425f59e90a690dda923fa9d39c4d7570a1e89949dd
njrat
fd8255a1dca219da4d66c0bb5b70fb732501807de13a1e2f07f4baee039a391e
njrat
+ 69 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
trojan family:njrat evasion persistence
Link:
https://tria.ge/reports/200927-actvpgc8z6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Runs ping.exe
Modifies service
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
87902fd490b189d4ceb81a430fd47d852bf503f373c6ff3caa70a80a9c7d56c6
MD5 hash:
322172242f755abaa396aa21be344219
SHA1 hash:
4c24c2726672197c30768e27a76e3b660a21e4c5
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/43c18ba5-c673-460d-a7a1-2c1e058cd790/
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: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:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
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 87902fd490b189d4ceb81a430fd47d852bf503f373c6ff3caa70a80a9c7d56c6

(this sample)

  
Link
https://www.virustotal.com/gui/file/87902fd490b189d4ceb81a430fd47d852bf503f373c6ff3caa70a80a9c7d56c6/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/66243/

Comments