MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4. 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: 8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4
SHA3-384 hash: bf4a71772def309b037bb8ddeae20560722bfb170d41207fff10a04930f99f25ca6cfb5daf5561f6d4d888acaf27149f
SHA1 hash: 23f13499b91f03e13dc730d1a1640713245ff5a9
MD5 hash: 27a26b9535f908ea109a9e1fa986a842
humanhash: equal-king-snake-don
File name:SecuriteInfo.com.BehavesLike.Win32.Generic.dc.26667
Download: download sample
Signature njrat
Create hunting rule
File size:267'264 bytes
First seen:2021-02-18 09:59:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:bKXDMAYloj1/L8YEAQwgG5hDLwwGITdEyl:bKXDMAzjN4YEAFuwbayl
Threatray 49 similar samples on MalwareBazaar
TLSH 7044D0517BD9ADEBE6BE437708A8920123F9F019BAB0F21E7DC012D85D55F024F52B26
Reporter SecuriteInfoCom
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://www.zhuoxinwei.com/bb.exe
Verdict:
Malicious activity
Analysis date:
2021-02-18 00:27:25 UTC
Tags:
rat njrat bladabindi
Link:
https://app.any.run/tasks/43a39264-9521-4b32-b0ff-a5f5eb46610d

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/117730/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.dc.26667.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a window
Creating a file
Searching for the window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a process with a hidden window
Connection attempt
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
Enabling autorun by creating a file
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.
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/611360
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
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)
Injects a PE file into a foreign processes
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
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: 354695 Sample: SecuriteInfo.com.BehavesLik... Startdate: 18/02/2021 Architecture: WINDOWS Score: 100 51 binancino.hopto.org 2->51 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for dropped file 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 8 other signatures 2->65 11 SecuriteInfo.com.BehavesLike.Win32.Generic.dc.exe 15 3 2->11         started        16 225659c6fa2732024934dc96358cf4cb.exe 2->16         started        18 windows.exe 2 2->18         started        20 2 other processes 2->20 signatures3 process4 dnsIp5 53 192.168.2.1 unknown unknown 11->53 43 SecuriteInfo.com.B....Generic.dc.exe.log, ASCII 11->43 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->75 77 Injects a PE file into a foreign processes 11->77 22 SecuriteInfo.com.BehavesLike.Win32.Generic.dc.exe 2 3 11->22         started        25 225659c6fa2732024934dc96358cf4cb.exe 16->25         started        file6 signatures7 process8 file9 39 C:\Users\user\AppData\Roaming\windows.exe, PE32 22->39 dropped 41 C:\Users\user\...\windows.exe:Zone.Identifier, ASCII 22->41 dropped 27 windows.exe 14 3 22->27         started        process10 signatures11 67 Multi AV Scanner detection for dropped file 27->67 69 Machine Learning detection for dropped file 27->69 71 Drops PE files to the startup folder 27->71 73 2 other signatures 27->73 30 windows.exe 2 5 27->30         started        process12 dnsIp13 55 binancino.hopto.org 45.61.139.76, 1989 AS40676US United States 30->55 45 C:\...\225659c6fa2732024934dc96358cf4cb.exe, PE32 30->45 dropped 47 C:\Users\user\AppData\...\windows.exe.tmp, ASCII 30->47 dropped 49 225659c6fa27320249...exe:Zone.Identifier, ASCII 30->49 dropped 57 Creates autostart registry keys with suspicious names 30->57 35 netsh.exe 1 3 30->35         started        file14 signatures15 process16 process17 37 conhost.exe 35->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-02-18 04:15:38 UTC
AV detection:
14 of 48 (29.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrsapz6r3atwnfyfcd3lnlzig4jlmppmqgxlukz5skdkhovlppka._file
Verdict:
malicious
Similar samples:
261881b9a0b2810582a67284f52bb08f2da1567353648ca01032b581345d5854
njrat
2d5141d5ec7c57f0f6eebc72dae6152f25b24516c86bb8797a9a5dba8e447f49
njrat
5ca061faa8e7a7ef6f6d2ac3329966d1b8816421911e2813879497777e5622e7
njrat
705d1bef79134efe898b490d096aecb9c0acbdc889fae25e8f2d88db9429001c
njrat
7801d40fed7d2a6ec57aae8e1e5bf403e8fa0945c0bf2d5bb70722627eb8bfae
njrat
973e51a1f7437e25537b2b355779653cbc82866df0185e3549eb3fc0b7accd39
njrat
bdbfa9d8186cfa1a4c04fa542f78f4c794c7554e0422001f430bf0db01eab52b
njrat
caf2426860f30acfd54896fffbbd9c0287aea7f7dc5e51ead591381aedcd31d4
njrat
f46c3e1152437fbff901cad6cf094298b5e1578a15d204993d715a936e7f501c
njrat
f6bc405db3da4e4df654329c7f4edadffc03a033f29d645ac786bf05e28f5735
njrat
+ 39 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
agilenet evasion persistence
Link:
https://tria.ge/reports/210218-jebkw23wna/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
Unpacked files
SH256 hash:
8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4
MD5 hash:
27a26b9535f908ea109a9e1fa986a842
SHA1 hash:
23f13499b91f03e13dc730d1a1640713245ff5a9
Link:
https://www.unpac.me/results/00a6d19d-f7d7-4524-b68b-a89b475dfd70/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4

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:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
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.

Web download

njrat

Executable exe 8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/117730/
  
URLhaus
https://urlhaus.abuse.ch/url/1017170/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1017417/

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