MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f
SHA3-384 hash: 9f58b3f9136908d403eb8b95e0ec2f66d5607f604b1c87139cabeeabdf0a816dcf9ca90c44d474ac99f2fdeb2bb0a7f0
SHA1 hash: 7c4e15d72e4a556bc72d1f4c915a9fe5fc565524
MD5 hash: 02490fb22ea80ee6c821f22f93c23571
humanhash: summer-muppet-xray-pennsylvania
File name:x2Vvu1kG.exe
Download: download sample
Signature njrat
Create hunting rule
File size:217'088 bytes
First seen:2020-10-25 23:02:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:qglz0J/xr+VBFaImYIYiheeeeeeeeefYDeOiClppeppOpplppepppDppptpppjpr:kZrMBgJSOG9iO2RK
TLSH 60244CCE326B54DBCA6905F43D13C57D87339C7AE143A65A18B2B36EE2B217723604D2
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/78038/
Detection(s):
Win.Trojan.B-468
Create hunting rule

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.Packed.Bladabindi-6917466-0
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.Trojan.Agent-1345446
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %AppData% 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
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Sending a TCP request to an infection source
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/510805
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-10-25 23:04:03 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ucrzcvbwlbubnlan4vdd2tbay26lfcjsn3yetgnb54wf6fzdzbxq._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
evasion persistence trojan family:njrat
Link:
https://tria.ge/reports/201025-44rqyk7jxa/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
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/a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f

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: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 a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f

(this sample)

  
Link
https://www.virustotal.com/gui/file/a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/78038/

Comments