MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 848d738d56a8b14c89c4ffea4bdba3390d70004c081785de07af4fc541f146ec. 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: 848d738d56a8b14c89c4ffea4bdba3390d70004c081785de07af4fc541f146ec
SHA3-384 hash: 23a3c79a409fe231e8bae0eb531dbea39c301511160263bf4217b0ab89622d8e0d465d97cb9be7a2ea840b356632e5b6
SHA1 hash: 882c82e0ddc950280efddf084b80fbc2929184c8
MD5 hash: 1ab733cb30c91e18973d54fffacc0670
humanhash: white-gee-lake-east
File name:41VHwWWs.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2020-09-17 07:02:20 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:csUaaUidkIXR21cGMy8Pcc9/rwFlCANBrAF+rMRTyN/0L+EcoinblneHQM3epzXN:7UaCLGv8Pcc9EyAHrM+rMRa8Nu+Gt
Threatray 47 similar samples on MalwareBazaar
TLSH B9033A4D7FE18168C5FD067B05B2D41207BAE04B6E23D91E8EF164AA37636C58B50EF2
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/62676/
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

Win.Packed.Bladabindi-7994427-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a process with a hidden window
Enabling the 'hidden' option for analyzed file
Creating a window
DNS request
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
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/468807
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
Protects its processes via BreakOnTermination flag
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/848d738d56a8b14c89c4ffea4bdba3390d70004c081785de07af4fc541f146ec/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-09-17 07:04:06 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qsgxhdkwvcyuzcoe77vexw5dhegxaacmbalylxqhv5h4kqpri3wa._file
Verdict:
malicious
Similar samples:
25f59abfbdb775126b69112b260fae983e35bd6da0e6e13ad8fc7343da8540ec
njrat
5947d6a7fc4014628b957c4ed8ffff7c961f37f155cb814224a89e1f3700f060
njrat
62a5cd1fc65cdb2b773565e9861a48f139ee961156b38e26016c28a23fc896cc
njrat
abafeafa173768d556241bb6797fc4555b2358ce8d0dfdd81bab9f5f152c077f
njrat
b3a40e1d85f1e1608acf07414a8dea2730c0de0d824bc6165856b8fe00e8ed3d
njrat
ba38f08588d75d7ffd054253f4afd1d9803c2c0f5f390f35214c0b552840793d
njrat
dfa0c14670f8df1eac3e005262e901622c0ec1ccdcc91fd8aedb93da5a32ad64
njrat
e7e5f0ac865dd8cec6539a3defbd09f15df7822b647fcd2e2f53555be98ad8e2
njrat
ed34d4eba0bc7d434f32bb9bca0147632592656ddf0c2aa892fbee54b0850ff1
njrat
f0caf48005d504dfb402e3ef4b137187e9ffa0d903099222560d7f4a8885358d
njrat
+ 37 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/200917-jtqp1c1xbs/
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
Drops startup file
Modifies Windows Firewall
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/848d738d56a8b14c89c4ffea4bdba3390d70004c081785de07af4fc541f146ec

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 848d738d56a8b14c89c4ffea4bdba3390d70004c081785de07af4fc541f146ec

(this sample)

  
Link
https://www.virustotal.com/gui/file/848d738d56a8b14c89c4ffea4bdba3390d70004c081785de07af4fc541f146ec/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/62676/

Comments