MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373. 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: 22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373
SHA3-384 hash: 392726c4f0eac81816d3e8638782a85c32ef61a61db9a62a6798d9b57b42688e7182602eb4012d5b2ae8e32caa373ff5
SHA1 hash: 095a7047dd39cbbc7808e6b19952c6282b3d9eae
MD5 hash: 1f0163a3a4d362d9e813c60cfe513269
humanhash: fix-bacon-blossom-twenty
File name:GdFfejsD.exe
Download: download sample
Signature njrat
Create hunting rule
File size:36'864 bytes
First seen:2020-09-24 09:47:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:W8RZLj6icdri5Z7JAyk/O4GfZ5Ze6yN0rAF+rMRTyN/0L+EcoinblneHQM3epzXw:ZRLHJ7k/O4GbZ7yirM+rMRa8Nu2Ft
Threatray 63 similar samples on MalwareBazaar
TLSH F7F22A4D7BE08568C9FE067B05B2E4130777E04F5E23D90D8EF264AA36636C18F54AA2
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/65307/
Detection(s):
Win.Trojan.B-468
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.Generic-7672854-0
Create hunting rule

Win.Packed.Generic-7672855-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Enabling the 'hidden' option for analyzed file
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for files in the %temp% directory
Creating a process with a hidden window
Creating a window
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Sending a TCP request to an infection source
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/474141
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 dnsIp2 2 Behavior Graph ID: 289516 Sample: GdFfejsD.exe Startdate: 24/09/2020 Architecture: WINDOWS Score: 100 37 paragetirmebana.duckdns.org 2->37 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for dropped file 2->47 49 13 other signatures 2->49 9 GdFfejsD.exe 1 6 2->9         started        12 windows.exe 3 2->12         started        14 windows.exe 2 2->14         started        16 windows.exe 2 2->16         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\windows.exe, PE32 9->31 dropped 33 C:\Users\user\...\windows.exe:Zone.Identifier, ASCII 9->33 dropped 35 C:\Users\user\AppData\...behaviorgraphdFfejsD.exe.log, ASCII 9->35 dropped 18 windows.exe 2 6 9->18         started        process6 dnsIp7 39 paragetirmebana.duckdns.org 192.169.69.25, 1604, 49719, 49723 WOWUS United States 18->39 41 192.168.2.1 unknown unknown 18->41 27 C:\...\c57b46b57117b69079564f3bfb838971.exe, PE32 18->27 dropped 29 c57b46b57117b69079...exe:Zone.Identifier, ASCII 18->29 dropped 51 Antivirus detection for dropped file 18->51 53 Multi AV Scanner detection for dropped file 18->53 55 Machine Learning detection for dropped file 18->55 57 2 other signatures 18->57 23 netsh.exe 3 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-09-24 09:49:04 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ejre4ra6xmzzipsmok2pjq5wewypp3b5rmvpvwrtvetxcfclanzq._file
Verdict:
malicious
Similar samples:
27f7e212954191d2fc10676ad69942421e904a5719cb2001149de2bb38c0610f
njrat
329c2259d6015d98464322b873b783d18da6ac1a13d7ec40d1de9f143659b1bb
njrat
62a5cd1fc65cdb2b773565e9861a48f139ee961156b38e26016c28a23fc896cc
njrat
6739301df01608fd2317175f72add2c77d998e16d5b37b30c6940a468a478d7a
njrat
6cb0c6c55411375878184fba0feeee93c99c7f184818449e548ef875486ec38a
njrat
a43c0d39f01808746f82c041edad38edbb89334c098311331d3e2733824f6259
njrat
b3bb77a17e54a662b6fed76d2537ad3a27ec2ab051f913a9aa1207219d96c30f
njrat
dc7f689cc6adbf5d8e36008390ed2a79d59d0d3411f9e353ddacf236e695a615
njrat
ed34d4eba0bc7d434f32bb9bca0147632592656ddf0c2aa892fbee54b0850ff1
njrat
ffe8dbc4f815fe713c790a19b5122c79d1de9c817f10edf7d86ca297175ce439
njrat
+ 53 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/200924-7mg3kye9qj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Adds Run key to start application
Adds Run key to start application
Drops startup file
Loads dropped DLL
Drops startup file
Executes dropped EXE
Modifies Windows Firewall
Executes dropped EXE
Modifies Windows Firewall
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/22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373

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: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 22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373

(this sample)

  
Link
https://www.virustotal.com/gui/file/22624e441ebb33943e4c72b4f4c3b625b0f7ec3d8b2afada33a92771144b0373/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/65307/

Comments