MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8adcf006800aa50ce44fd520a9970d3324a53320765908b1c1caead9e07d7b1. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8adcf006800aa50ce44fd520a9970d3324a53320765908b1c1caead9e07d7b1
SHA3-384 hash: 7b7f6c7957c9050a6396a688c9f618e89307d6cb9a8f44f63b1121dc4c9b48df04255d0b1a0d0485f62b812e9c8f9c2f
SHA1 hash: 06bcd962814278bc812f8c01a0ec39ad72439298
MD5 hash: eab5bff87d7acd0cea135c9877e91e71
humanhash: cola-beryllium-hydrogen-yankee
File name:System.exe
Download: download sample
Signature njrat
Create hunting rule
File size:283'648 bytes
First seen:2022-01-04 22:01:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'660 x Formbook, 12'250 x SnakeKeylogger)
ssdeep 3072:FWyRWGZL28erfuvhu8yyNpp0Ah+ZxGuTjtQ59xBEWQe884mJYOzI/REqSKhl50TM:dhpDviyxz8mLTJ6HGsoKiDssb7xs
Threatray 225 similar samples on MalwareBazaar
TLSH T1FA540A553BF51D80E2BF6B321B7265808776BD52CA23D30E56D6A0CE0F763859F023A6
File icon (PE):PE icon
dhash icon 414555c0d4d44503 (15 x njrat, 14 x BlackNET, 8 x Lucifer)
Reporter James_inthe_box
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Server.exe
Verdict:
Malicious activity
Analysis date:
2022-01-04 21:18:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2e68d349-1c62-4cf5-a378-4e93b72d16e2

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/217326/
Detection(s):
Win.Packed.Generic-9865070-0
Create hunting rule

Win.Packed.Agenttesla-9870513-0
Create hunting rule

Win.Packed.Passwordstealera-6872839-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Replacing files
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Searching for synchronization primitives
Creating a file
Сreating synchronization primitives
Launching a service
Creating a window
DNS request
Creating a process with a hidden window
Creating a process from a recently created file
Setting a keyboard event handler
Creating a file in the %temp% directory
Launching a process
Enabling the 'hidden' option for recently created files
Deleting a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling autorun
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm evasive fingerprint greyware keylogger njrat obfuscated packed rat stealer
Link:
https://www.filescan.io/uploads/61d4c3a1bfe53d318f267136/reports/70f7ad10-dcbe-4fda-91cc-0b341a8adb54/overview
Result
Verdict:
MALICIOUS
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/29afd203-d424-48fd-b978-dd4bc7aa1143
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/915511
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
Drops PE files to the user root directory
Installs a global keyboard hook
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Self deletion via cmd delete
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Uses ping.exe to check the status of other devices and networks
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 547989 Sample: System.exe Startdate: 04/01/2022 Architecture: WINDOWS Score: 100 78 Malicious sample detected (through community Yara rule) 2->78 80 Antivirus / Scanner detection for submitted sample 2->80 82 Multi AV Scanner detection for dropped file 2->82 84 7 other signatures 2->84 8 System.exe 1 6 2->8         started        12 System.exe 2->12         started        14 System.exe 2->14         started        16 2 other processes 2->16 process3 file4 68 C:\Users\user\System.exe, PE32 8->68 dropped 70 C:\Users\user\System.exe:Zone.Identifier, ASCII 8->70 dropped 72 C:\Users\user\AppData\...\System.exe.log, ASCII 8->72 dropped 96 Self deletion via cmd delete 8->96 98 Drops PE files to the user root directory 8->98 18 System.exe 6 211 8->18         started        23 cmd.exe 1 8->23         started        25 cmd.exe 12->25         started        27 netsh.exe 12->27         started        29 cmd.exe 14->29         started        31 netsh.exe 14->31         started        33 cmd.exe 16->33         started        35 netsh.exe 16->35         started        37 cmd.exe 16->37         started        signatures5 process6 dnsIp7 76 nipodipo.duckdns.org 92.9.26.75, 49749, 5000 OPALTELECOM-ASTalkTalkCommunicationsLimitedGB United Kingdom 18->76 66 C:\...\JU2gtcAjfdYmODHxkGFCwiRmOvdfF3.exe, PE32 18->66 dropped 86 Multi AV Scanner detection for dropped file 18->86 88 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 18->88 90 Creates an undocumented autostart registry key 18->90 94 7 other signatures 18->94 47 13 other processes 18->47 92 Uses ping.exe to check the status of other devices and networks 23->92 49 2 other processes 23->49 52 2 other processes 25->52 39 conhost.exe 27->39         started        54 2 other processes 29->54 41 conhost.exe 31->41         started        56 2 other processes 33->56 43 conhost.exe 35->43         started        45 conhost.exe 37->45         started        file8 signatures9 process10 dnsIp11 58 conhost.exe 47->58         started        60 conhost.exe 47->60         started        62 conhost.exe 47->62         started        64 11 other processes 47->64 74 192.168.2.1 unknown unknown 49->74 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8adcf006800aa50ce44fd520a9970d3324a53320765908b1c1caead9e07d7b1/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-01-04 22:00:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
35616cb24994c8f53d586c6a5959c1011331e4c224be38bb5de08ee89378ecb8
njrat
716408476bc23c3e74a852ed6246dd60e8ed18533bedc13d4984279c97cd1a74
njrat
79591b44955812c9f6c9f6d168a927c7af1bea5928d22c1d210eddbbcd93578e
njrat
950ae733089e9761c22fcd9b1f5c1a45357fb744667298070da464afaa560905
njrat
a06010d09b93b8cf46c397a30a15e7f4a163fddd7eaa18dc0eeb202b9f2560a5
njrat
ac64301a43403c83264c5c32676a99521304e842fec99a66941a3313520f4e07
njrat
b64b3219e447c13440ca2f800705d25b03f1ce27e214edad3cb240a34b36862b
njrat
b75c337a0fb7eb49ec34d6d313a612e93dc4180a8bf25f99fd7b10ea1077e8e1
njrat
b968be42546794effa6900666e9e6ad09c6e211d192571a1bed308c92222c227
njrat
c765e040e1facf4b651d4684a4fdb3fd04c0d01e506bfb0dce454104f2c43f8c
njrat
+ 215 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/220104-1w72jsheg8/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Deletes itself
Drops startup file
Uses the VBS compiler for execution
Executes dropped EXE
Modifies Installed Components in the registry
Modifies Windows Firewall
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
d8adcf006800aa50ce44fd520a9970d3324a53320765908b1c1caead9e07d7b1
MD5 hash:
eab5bff87d7acd0cea135c9877e91e71
SHA1 hash:
06bcd962814278bc812f8c01a0ec39ad72439298
Detections:
win_njrat_w1
Create hunting rule
Link:
https://www.unpac.me/results/fa69ae22-4c6b-457a-b748-7fdd14f419e5/
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/d8adcf006800aa50ce44fd520a9970d3324a53320765908b1c1caead9e07d7b1

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
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/217326/

Comments