MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e37938245442bf4c1114da250f93cb5cc2fea5c35e50883b819f3c8afc4ab363. 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: e37938245442bf4c1114da250f93cb5cc2fea5c35e50883b819f3c8afc4ab363
SHA3-384 hash: 8299806f62a6fba4faf216e62e2cce665885425f64886165b1a6693b9c65741dff7e7bf6976ce807d9fa4159f243f230
SHA1 hash: 2b298bc579a805f020d0f8c2a4ec8dafada61417
MD5 hash: 20582340f93fdefaaeb114ffd7f659e2
humanhash: india-washington-uniform-solar
File name:SecuriteInfo.com.Trojan.GenericKD.45746214.12120.23785
Download: download sample
Signature njrat
Create hunting rule
File size:359'936 bytes
First seen:2021-02-18 13:36:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:kOzzBxDMAYloj1/L8YEAQwgG5hOm3Y/eUObRPlV:VvBxDMAzjN4YEAFMmo/AbRP
Threatray 48 similar samples on MalwareBazaar
TLSH 6874E1533BC959ABE6FE423B05A85A4133F9B01EBAA0F31E7DC512D84D14F074B52A27
Reporter SecuriteInfoCom
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5ca061faa8e7a7ef6f6d2ac3329966d1b8816421911e2813879497777e5622e7
Verdict:
Malicious activity
Analysis date:
2021-02-18 17:14:30 UTC
Tags:
macros macros-on-open generated-doc rat njrat bladabindi
Link:
https://app.any.run/tasks/46e497f5-1541-4ca7-a748-b30ad707758a

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/117773/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45746214.12120.23785.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
Searching for the window
Creating a file in the %AppData% directory
Creating a process from a recently created 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
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/611576
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 signatures2 2 Behavior Graph ID: 354805 Sample: SecuriteInfo.com.Trojan.Gen... Startdate: 18/02/2021 Architecture: WINDOWS Score: 100 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 8 other signatures 2->60 10 SecuriteInfo.com.Trojan.GenericKD.45746214.12120.exe 15 3 2->10         started        14 4b11d4cad7102d66f494861052a39573.exe 2->14         started        16 UpdateGoogle.exe 2->16         started        19 2 other processes 2->19 process3 dnsIp4 42 SecuriteInfo.com.T...46214.12120.exe.log, ASCII 10->42 dropped 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->70 72 Injects a PE file into a foreign processes 10->72 21 SecuriteInfo.com.Trojan.GenericKD.45746214.12120.exe 2 3 10->21         started        24 4b11d4cad7102d66f494861052a39573.exe 14->24         started        50 192.168.2.1 unknown unknown 16->50 file5 signatures6 process7 file8 38 C:\Users\user\AppData\...\UpdateGoogle.exe, PE32 21->38 dropped 40 C:\Users\...\UpdateGoogle.exe:Zone.Identifier, ASCII 21->40 dropped 26 UpdateGoogle.exe 14 3 21->26         started        process9 signatures10 62 Multi AV Scanner detection for dropped file 26->62 64 Machine Learning detection for dropped file 26->64 66 Drops PE files to the startup folder 26->66 68 2 other signatures 26->68 29 UpdateGoogle.exe 2 5 26->29         started        process11 dnsIp12 52 binancino.hopto.org 45.61.139.76, 81 AS40676US United States 29->52 44 C:\...\4b11d4cad7102d66f494861052a39573.exe, PE32 29->44 dropped 46 C:\Users\user\...\UpdateGoogle.exe.tmp, ASCII 29->46 dropped 48 4b11d4cad7102d66f4...exe:Zone.Identifier, ASCII 29->48 dropped 74 Creates autostart registry keys with suspicious names 29->74 34 netsh.exe 1 3 29->34         started        file13 signatures14 process15 process16 36 conhost.exe 34->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e37938245442bf4c1114da250f93cb5cc2fea5c35e50883b819f3c8afc4ab363/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-17 23:34:19 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4n4tqjcuik7uyeiu3isq7e6lltbp5jodlziiqo4bt46iv7ckwnrq._file
Verdict:
malicious
Similar samples:
48b29379fd85a693a02194e85bc1e465bbe75215d24d2a7d564dedbe31b02aed
njrat
5ca061faa8e7a7ef6f6d2ac3329966d1b8816421911e2813879497777e5622e7
njrat
705d1bef79134efe898b490d096aecb9c0acbdc889fae25e8f2d88db9429001c
njrat
8c6407e7d1d82766970510f6b6af283712b63dec81aeba2b3d9286a3baab7bd4
njrat
973e51a1f7437e25537b2b355779653cbc82866df0185e3549eb3fc0b7accd39
njrat
bdbfa9d8186cfa1a4c04fa542f78f4c794c7554e0422001f430bf0db01eab52b
njrat
caf2426860f30acfd54896fffbbd9c0287aea7f7dc5e51ead591381aedcd31d4
njrat
da2f28066626c5233467f5cffeba4c770bb1e2d4a0ab70d11dde42051ab4a547
njrat
dd5f8efd0456d76594e52eaff220830d3d507a7774560639ec826a3d3d535aa9
njrat
f46c3e1152437fbff901cad6cf094298b5e1578a15d204993d715a936e7f501c
njrat
+ 38 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
agilenet evasion persistence
Link:
https://tria.ge/reports/210218-pp7zaxgczs/
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:
e37938245442bf4c1114da250f93cb5cc2fea5c35e50883b819f3c8afc4ab363
MD5 hash:
20582340f93fdefaaeb114ffd7f659e2
SHA1 hash:
2b298bc579a805f020d0f8c2a4ec8dafada61417
Link:
https://www.unpac.me/results/8f706f4a-8679-4493-8acd-2e727f699326/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e37938245442bf4c1114da250f93cb5cc2fea5c35e50883b819f3c8afc4ab363

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 e37938245442bf4c1114da250f93cb5cc2fea5c35e50883b819f3c8afc4ab363

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1012890/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1017421/
Cape
Cape
https://www.capesandbox.com/analysis/117773/

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