MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a74c8a7623b9b119511f2825bf010ae261833fb9a64e18df4dbc780d7b0d44a. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a74c8a7623b9b119511f2825bf010ae261833fb9a64e18df4dbc780d7b0d44a
SHA3-384 hash: 37334cda9a73e03921e20e838dd6a4abe8239a8e4bfa725a450ec7b0e429c0ac2a90e08b552273b9e9ef7d193b619abd
SHA1 hash: 7b2328eba6fd4d220c6667de2a8931836c5e8855
MD5 hash: 0a102569458d7bd14b503f53041c3990
humanhash: seven-triple-indigo-monkey
File name:E4iwr2i1.exe
Download: download sample
Signature njrat
Create hunting rule
File size:126'464 bytes
First seen:2020-10-21 02:02:22 UTC
Last seen:2020-10-22 22:32:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 1536:99glpqRWuEmZUMBd0XhOgX8aSxTBo9bURCTeOZ/k+TeURHnp+NFE5omr6xVYnnGq:zgls0dMEggX8aSBi9BfB7nMFosInn7t
TLSH 24C3F14E3BA8C892C52D567095B5C7600370E1870827EE6E8DC46596AF733EF2E8C6F4
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
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

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
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/504131
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 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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 301546 Sample: E4iwr2i1.exe Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for dropped file 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 11 other signatures 2->40 8 E4iwr2i1.exe 1 5 2->8         started        11 Process Hacker.exe 3 2->11         started        13 Process Hacker.exe 2 2->13         started        15 Process Hacker.exe 2 2->15         started        process3 file4 28 C:\Users\user\AppData\...\Process Hacker.exe, PE32 8->28 dropped 30 C:\Users\user\AppData\...4iwr2i1.exe.log, ASCII 8->30 dropped 17 Process Hacker.exe 4 5 8->17         started        process5 dnsIp6 32 syazhkr.hopto.org 197.53.126.118, 5552 TE-ASTE-ASEG Egypt 17->32 26 C:\...\2812d61289492db35cd3e2946eaf1f85.exe, PE32 17->26 dropped 42 Protects its processes via BreakOnTermination flag 17->42 44 Creates autostart registry keys with suspicious names 17->44 22 netsh.exe 1 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/0a74c8a7623b9b119511f2825bf010ae261833fb9a64e18df4dbc780d7b0d44a/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-10-21 02:04:04 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bj2mrj3chonrdfir6kbfx4aqvytbqm73tjsoddpu3pdybv5q2rfa._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
persistence trojan family:njrat evasion
Link:
https://tria.ge/reports/201021-4yrznnfr6x/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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:
0a74c8a7623b9b119511f2825bf010ae261833fb9a64e18df4dbc780d7b0d44a
MD5 hash:
0a102569458d7bd14b503f53041c3990
SHA1 hash:
7b2328eba6fd4d220c6667de2a8931836c5e8855
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/57649733-8ac4-48d7-91c7-9859afdc1274/
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: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 0a74c8a7623b9b119511f2825bf010ae261833fb9a64e18df4dbc780d7b0d44a

(this sample)

  
Link
https://www.virustotal.com/gui/file/0a74c8a7623b9b119511f2825bf010ae261833fb9a64e18df4dbc780d7b0d44a/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/73838/

Comments