MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7f295f047dceea8beb67326cc712e866f03eb4219585b83ecbaf8257e7c3b54. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7f295f047dceea8beb67326cc712e866f03eb4219585b83ecbaf8257e7c3b54
SHA3-384 hash: 795854bac716aad0f06c14915432e5601701aeafacaf4ef8fbc0779db7643a6fc735c9801595ca40ca6946c923166e24
SHA1 hash: 13b298c219770ce90806106cbaef767928300039
MD5 hash: 7d0f0dc4fa7f1a866e4fa5031120e7b7
humanhash: yellow-fix-helium-undress
File name:Facon_PDF.exe
Download: download sample
Signature njrat
Create hunting rule
File size:861'184 bytes
First seen:2020-10-20 08:02:57 UTC
Last seen:2020-10-25 20:02:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:4Vhw0onalnMGyPfvrTAVFE0un/3dQWmxfkMZhK:ihwRnaln7sjTAzE00vmx9
TLSH D605E976BDC8A198D42FD73386E7993D80A3BC5167635C1FA44A33904C722917B2B78E
Reporter abuse_ch
Tags:exe NjRAT


Avatar
abuse_ch
Malspam distributing njrat:

HELO: mta44
Sending IP: 1.221.137.166
From: test@ahnco.com
Subject: Facon_PDF.exe
Attachment: Facon_PDF.exe

NjRAT C2:
law8363893.no-ip.org

Intelligence

File Origin
# of uploads :
2
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73293/
Detection(s):
SecuriteInfo.com.Trojan.MulDrop6.10042.28991.6076.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a process with a hidden window
DNS request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
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.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/497227
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Injects files into Windows application
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 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: 300779 Sample: Facon_PDF.exe Startdate: 20/10/2020 Architecture: WINDOWS Score: 100 51 law8363893.no-ip.org 2->51 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for dropped file 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 12 other signatures 2->63 11 Facon_PDF.exe 3 2->11         started        15 notepad.exe 2 2->15         started        17 notepad.exe 2 2->17         started        19 notepad.exe 2->19         started        signatures3 process4 file5 49 C:\Users\user\AppData\...\Facon_PDF.exe.log, ASCII 11->49 dropped 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->73 75 Injects a PE file into a foreign processes 11->75 21 Facon_PDF.exe 4 11->21         started        77 Injects files into Windows application 15->77 24 notepad.exe 15->24         started        27 notepad.exe 17->27         started        29 notepad.exe 19->29         started        signatures6 process7 file8 47 C:\Users\user\AppData\Roaming\notepad.exe, PE32 21->47 dropped 31 notepad.exe 3 21->31         started        71 Injects files into Windows application 27->71 signatures9 process10 signatures11 79 Antivirus detection for dropped file 31->79 81 Multi AV Scanner detection for dropped file 31->81 83 Machine Learning detection for dropped file 31->83 85 4 other signatures 31->85 34 notepad.exe 3 6 31->34         started        process12 dnsIp13 53 law8363893.no-ip.org 34->53 55 192.168.2.1 unknown unknown 34->55 43 C:\...\749e61bd02cc756ea373bd81808cdf08.exe, PE32 34->43 dropped 45 C:\Users\user\AppData\...\notepad.exe.tmp, ASCII 34->45 dropped 65 Protects its processes via BreakOnTermination flag 34->65 67 Creates autostart registry keys with suspicious names 34->67 69 Injects files into Windows application 34->69 39 netsh.exe 1 3 34->39         started        file14 signatures15 process16 process17 41 conhost.exe 39->41         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7f295f047dceea8beb67326cc712e866f03eb4219585b83ecbaf8257e7c3b54/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2015-10-18 05:57:10 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w7zjl4ch3txkrpvwomtmy4joqzxqh22cdfmfxa7mxl4ck7t4hnka._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence evasion
Link:
https://tria.ge/reports/201020-bcxb7p3kca/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
Unpacked files
SH256 hash:
b7f295f047dceea8beb67326cc712e866f03eb4219585b83ecbaf8257e7c3b54
MD5 hash:
7d0f0dc4fa7f1a866e4fa5031120e7b7
SHA1 hash:
13b298c219770ce90806106cbaef767928300039
Link:
https://www.unpac.me/results/6d882925-cd85-4f47-8636-e6e03655ee57/
SH256 hash:
c7109dc73c27fcd58fcf01cf247b4aefb64f0bd1116991dd284a6ce8057e7aad
MD5 hash:
3fbb65dbadc90096f6007c5cebc0360a
SHA1 hash:
4d63e16fee48b1b6f6352439dd86011b0bf77f03
Link:
https://www.unpac.me/results/6d882925-cd85-4f47-8636-e6e03655ee57/
SH256 hash:
d56629b07bbf31f210f06d450c16c4c10050879aa9a71c17350443e49e68675b
MD5 hash:
0782585ef1597a1ddd6b93b827dd54d1
SHA1 hash:
90411504e34cccea22dd501e0132fb81141b253a
Link:
https://www.unpac.me/results/6d882925-cd85-4f47-8636-e6e03655ee57/
SH256 hash:
31560fd92cf2e17109ee0edd0ae2e8f780d658abc4ecd9e89c58a6dad8ba280a
MD5 hash:
8d177bb7fefb9aa9fbff3a90e3498242
SHA1 hash:
b31b3262c3e2a1ac243fa9aef0be7ac4f00b0012
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/6d882925-cd85-4f47-8636-e6e03655ee57/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b7f295f047dceea8beb67326cc712e866f03eb4219585b83ecbaf8257e7c3b54

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:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:RAT_njRat
Create hunting rule
Author:Kevin Breen <kevin@techanarchy.net>
Description:Detects njRAT
Reference:http://malwareconfig.com/stats/njRat
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.

Malspam

njrat

Executable exe b7f295f047dceea8beb67326cc712e866f03eb4219585b83ecbaf8257e7c3b54

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73293/

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