MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b23fac3382a51f1910438bce97a602ced4b5509fe28f323cde76a60914d83c8d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b23fac3382a51f1910438bce97a602ced4b5509fe28f323cde76a60914d83c8d
SHA3-384 hash: 279ae6a5464c3e9684794c313d6d163dde9908e7eaa7d5970c943959cad876ede25636d42a3692bcbfca2a7749238cd6
SHA1 hash: 1bb5bb489d633cef59cb4d34d627aea811dad7fd
MD5 hash: d07f6d4d26c2fce6d6fcaedb2c9de1c2
humanhash: diet-venus-sodium-lion
File name:Doc_CompanyPROFILE_Quote30062021.exe
Download: download sample
Signature njrat
Create hunting rule
File size:705'536 bytes
First seen:2021-06-30 10:29:27 UTC
Last seen:2021-06-30 11:45:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:V0+mb0ctdCoYg5ojcdrApJNAv0dSz2AwYyGg3ssnX0NAHFad9Zp:KHwgXLi25AhkNVZp
Threatray 227 similar samples on MalwareBazaar
TLSH B7E4380AF7B0AF9AD32B0F3AF4070984ABF5C5176336FA6B69D409D55524F4BCA0E016
Reporter lowmal3
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Doc_CompanyPROFILE_Quote30062021.exe
Verdict:
Malicious activity
Analysis date:
2021-06-30 10:33:23 UTC
Tags:
rat njrat bladabindi trojan
Link:
https://app.any.run/tasks/3cf85053-5edb-4ec5-b2bf-e2808abc4b89

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/168933/
Detection(s):
SecuriteInfo.com.ArtemisD07F6D4D26C2.21950.20784.UNOFFICIAL
Create hunting rule

Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4dc2e7b2-285c-4880-91f4-5c6c5d1b2bb8
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/809885
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Found malware configuration
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
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 442296 Sample: Doc_CompanyPROFILE_Quote300... Startdate: 30/06/2021 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 8 Doc_CompanyPROFILE_Quote30062021.exe 15 4 2->8         started        12 AddInProcess32.exe 2 2->12         started        14 AddInProcess32.exe 1 2->14         started        16 AddInProcess32.exe 1 2->16         started        process3 file4 35 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 8->35 dropped 37 Doc_CompanyPROFILE_Quote30062021.exe.log, ASCII 8->37 dropped 57 Writes to foreign memory regions 8->57 59 Allocates memory in foreign processes 8->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->61 63 Injects a PE file into a foreign processes 8->63 18 AddInProcess32.exe 5 3 8->18         started        23 conhost.exe 12->23         started        25 conhost.exe 14->25         started        27 conhost.exe 16->27         started        signatures5 process6 dnsIp7 39 194.5.98.210, 4040, 49723 DANILENKODE Netherlands 18->39 33 C:\...\0ef5de3f5b1fb89677ba03e41fa0a05a.exe, PE32 18->33 dropped 49 Creates autostart registry keys with suspicious names 18->49 51 Drops PE files to the startup folder 18->51 53 Uses netsh to modify the Windows network and firewall settings 18->53 55 Modifies the windows firewall 18->55 29 netsh.exe 1 3 18->29         started        file8 signatures9 process10 process11 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b23fac3382a51f1910438bce97a602ced4b5509fe28f323cde76a60914d83c8d/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-06-30 07:19:30 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wi72ym4cuuprsecdrphjpjqcz3klkue74khtepg6o2tasfgyhsgq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
0ecfbf08398e1d0470c2f4d40a490808bd1b177cb60d674c5459d85f242952ab
njrat
5024f734215b78dad35ba4390d346c029d19eb14d90983cf48c2b16726df14d9
njrat
8948c6ec9f9e49de7b8546ae27fbaf0d95cb773c27cd10a1d62a45f7608dd651
njrat
8f2fb0c54f7b6c6ccc3bc70cfa83165a4b8905b89744dd98a01ad7f632c82f95
njrat
c5b84e95c3c5d74359f6dcc6d465f7ab9a4709807c15aa08ed258b1e32f39668
njrat
d0a2be2c26efa68a6f69a4173b21c251b3c1e55b4d64cdf67394f923c9c23452
njrat
ec694537528f39e61c4a295e99932641ac2660f8580911790926294c4a190afc
njrat
ec744aeae689c95f44a24eb398e65c3a722595de5504db84b2e41488f30a7510
njrat
fbbed47e36ef8e3ca336e9e918d3dc558a8e6c3b0cf6c84ac4345cfb0308abc1
njrat
fe0a5fde4fbbddd79d2938af2373c69a8219ea73831be712f1bca86150a30461
njrat
+ 217 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat agilenet evasion persistence trojan
Link:
https://tria.ge/reports/210630-te8pmehq62/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
b23fac3382a51f1910438bce97a602ced4b5509fe28f323cde76a60914d83c8d
MD5 hash:
d07f6d4d26c2fce6d6fcaedb2c9de1c2
SHA1 hash:
1bb5bb489d633cef59cb4d34d627aea811dad7fd
Link:
https://www.unpac.me/results/12266963-0265-4e1a-9c48-99f61521c890/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/b23fac3382a51f1910438bce97a602ced4b5509fe28f323cde76a60914d83c8d

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

njrat

Executable exe b23fac3382a51f1910438bce97a602ced4b5509fe28f323cde76a60914d83c8d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/168933/

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