MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d244896566a6b93fd466c6d9e1d60df1fe555d95aa2df69f3f05fd671046bd0. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d244896566a6b93fd466c6d9e1d60df1fe555d95aa2df69f3f05fd671046bd0
SHA3-384 hash: 1440bd41527c63c3ed750547b41adfae678ebe9d1e05d2f86f6c493f2c3f3d059538e541721a54f3b9a81d42a1ab17c1
SHA1 hash: fad238e2441d2b50908fd8e303cf7b41abdc3e19
MD5 hash: 8955ed56f2c51937f30068d570d8638f
humanhash: kitten-massachusetts-east-fillet
File name:CL746713-6231150.exe
Download: download sample
Signature njrat
Create hunting rule
File size:880'128 bytes
First seen:2021-03-25 10:14:04 UTC
Last seen:2021-03-25 12:08:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:V/aq+c67CEXYL93m70/S/1GpmVaNYTb7SlDt50uxEEJ:h3+ctEXYJWA/O1GykD0uxEEJ
Threatray 68 similar samples on MalwareBazaar
TLSH A5158C28FB856E96D62E0F76C1238098C3F5C1A76377F39B3DD868E618212568F5F052
Reporter abuse_ch
Tags:exe NjRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mona.foresthacker.hu
Sending IP: 80.211.198.27
From: John Bartsch <jbartsch@brovteplo.com.ua>
Subject: KelleyBean/Machine Request2021/679/USA
Attachment: KelleyBeanCL746713-6231150.cab (contains "CL746713-6231150.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CL746713-6231150.exe
Verdict:
Malicious activity
Analysis date:
2021-03-25 10:37:33 UTC
Tags:
rat njrat bladabindi
Link:
https://app.any.run/tasks/3acb1e34-ca3c-4758-90f9-5e08dd4c7b9b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Artemis8955ED56F2C5.22108.26448.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a window
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
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/653685
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
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)
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
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: 375785 Sample: CL746713-6231150.exe Startdate: 25/03/2021 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 7 other signatures 2->47 8 CL746713-6231150.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 C:\Users\user\...\CL746713-6231150.exe.log, ASCII 8->37 dropped 57 Writes to foreign memory regions 8->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->59 61 Injects a PE file into a foreign processes 8->61 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, 49706, 49707 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/4d244896566a6b93fd466c6d9e1d60df1fe555d95aa2df69f3f05fd671046bd0/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-03-25 08:04:39 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=juserfswnjvzh7kgnrwz4hla34p6kvozlkrn62pt6bp5m4ienpia._file
Verdict:
malicious
Similar samples:
5a9851575ac7feaabfd484aee3296eea2b2b18c04609a8fe1e1953f847f2c428
njrat
6116dfa4c8a11409b07bf99e7be47096aa08b0891e730c70f3b1c2c9fabd0fe9
njrat
69fa6ebff614598a1243cb00bc9a7c69e60fca3c3fd93da4157c418d202f1542
njrat
88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d
njrat
a567c1bce69110434087f78f3778878036cd56b79819d35b3a0cff29cf836824
njrat
a677db1e19ef0ff96a19fb973e8505296ca98d69c2eb7f97c18f097b6786f9b7
njrat
bf3e15c717d14fd550a694f56e737bbb400f86ad5130afd39ed12ca54c4f154d
njrat
c5b84e95c3c5d74359f6dcc6d465f7ab9a4709807c15aa08ed258b1e32f39668
njrat
d1c5fc3919d75c03db6df503ba210900921351ee1bbeb45c7a435ac5671c3a9e
njrat
d9bdfeb51aaa4192014f7263a7613a7cc812d3e7fbfbf5fcee5458ca1e58c04b
njrat
+ 58 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat evasion persistence trojan
Link:
https://tria.ge/reports/210325-5fl7amcnen/
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
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
4d244896566a6b93fd466c6d9e1d60df1fe555d95aa2df69f3f05fd671046bd0
MD5 hash:
8955ed56f2c51937f30068d570d8638f
SHA1 hash:
fad238e2441d2b50908fd8e303cf7b41abdc3e19
Link:
https://www.unpac.me/results/ca48c08d-c02a-45fd-ad20-e6e48d7dce05/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4d244896566a6b93fd466c6d9e1d60df1fe555d95aa2df69f3f05fd671046bd0

File information

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

Malspam

njrat

cab 00be6a9b9b91b94bc066569c28c53683c5e7d617e4d5d60b422c607f5e3cba73

njrat

Executable exe 4d244896566a6b93fd466c6d9e1d60df1fe555d95aa2df69f3f05fd671046bd0

(this sample)

  
Dropped by
MD5 dd357917bc3f69137a05c93b7e6ecc61
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 00be6a9b9b91b94bc066569c28c53683c5e7d617e4d5d60b422c607f5e3cba73

Comments