MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b94ffef7801deeebedddfc0a7e6a370870f413926661f995b62457ecf3766194. 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 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b94ffef7801deeebedddfc0a7e6a370870f413926661f995b62457ecf3766194
SHA3-384 hash: 9088ee12cd350fb5aa3007f0ac57bd7f8f6e2ed36f099677a26e7cbd1d49c23e705ac133cfb9f3058eca154c3c3949cd
SHA1 hash: 15c454007115be6b18fa58a267ec8b6cc7612cc1
MD5 hash: e9f890589975911d7be10ddb27c11412
humanhash: island-victor-jupiter-happy
File name:E9F890589975911D7BE10DDB27C11412.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'447'952 bytes
First seen:2021-05-07 12:11:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:3AHnh+eWsN3skA4RV1Hom2KXMmHacA/aaxmJD1rSEn1+Ox7AH0dgN3dcyIz5p:qh+ZkldoPK8YacAQJD1uEn7UHp3dcy0p
Threatray 1'010 similar samples on MalwareBazaar
TLSH 8C65CFD27381C071FE9792778B36F243567A792D4937841F22983E6A7D71362023EA63
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
192.169.69.25:1041

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
192.169.69.25:1041 https://threatfox.abuse.ch/ioc/31482/

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/152671/
Detection(s):
Win.Trojan.Autoit-9857105-0
Create hunting rule

Win.Dropper.njRAT-9857539-1
Create hunting rule

SecuriteInfo.com.AIT.Trojan.Nymeria.1583.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
DNS request
Using the Windows Management Instrumentation requests
Sending a UDP request
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Enabling a "Do not show hidden files" option
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.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/719753
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes (.Net Source)
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the startup folder
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 408807 Sample: CMjsfg603M.exe Startdate: 09/05/2021 Architecture: WINDOWS Score: 100 45 smokin10.duckdns.org 2->45 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 13 other signatures 2->57 8 CMjsfg603M.exe 5 2->8         started        12 aadcloudap.exe 1 2->12         started        14 aadcloudap.exe 2->14         started        16 4 other processes 2->16 signatures3 process4 file5 43 C:\Users\user\AppData\...\aadcloudap.exe, PE32 8->43 dropped 65 Binary is likely a compiled AutoIt script file 8->65 67 Contains functionality to inject code into remote processes 8->67 69 Uses schtasks.exe or at.exe to add and modify task schedules 8->69 18 RegAsm.exe 5 5 8->18         started        23 schtasks.exe 1 8->23         started        71 Antivirus detection for dropped file 12->71 73 Writes to foreign memory regions 12->73 75 Allocates memory in foreign processes 12->75 25 schtasks.exe 1 12->25         started        27 RegAsm.exe 3 12->27         started        77 Injects a PE file into a foreign processes 14->77 29 conhost.exe 16->29         started        31 conhost.exe 16->31         started        33 conhost.exe 16->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 47 smokin10.duckdns.org 192.169.69.25, 1041, 49721, 49722 WOWUS United States 18->47 49 192.168.2.1 unknown unknown 18->49 41 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 18->41 dropped 59 Changes the view of files in windows explorer (hidden files and folders) 18->59 61 Drops PE files to the startup folder 18->61 63 Creates an autostart registry key pointing to binary in C:\Windows 18->63 37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        file9 signatures10 process11
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b94ffef7801deeebedddfc0a7e6a370870f413926661f995b62457ecf3766194/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2021-05-03 00:37:00 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xfh7554adxxox3o57qfh42rxbbypie4smzq7tfnwerl6z43wmgka._file
Verdict:
malicious
Similar samples:
026eab20d057ef4d081ecb7fe504b8ba7f6e40cd54935ff713ad85c398cd7af5
njrat
11edfbb9381d84595491324562ad13b2c218abb38eb97b786e52ab70eb67ce25
njrat
1ffeb0811111c36b86f1ec119e8c7c919b4da8da4dfc6964f15155d218634a39
njrat
62e099194f9f946b0c0dd4c474c862dadb605101b87dc2eb7b8e43f6510ae3d1
njrat
a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6
njrat
ca4565f6d34227c8a57904ffcfd3c6c068ae5483bad28bb104c58ab569511c35
njrat
ce66906eb9b0e76d2b0e9b313e84c543412ae3ab598e57dce0b913759946254e
njrat
e3a10025b0133fbeb2e454ae7dfec1a6f0e49fee612f7139387f9396434762c6
njrat
eae124f4cdfb901640a5bebaeb7f4cf18fb68990d2da30d005c289bedf400509
njrat
f00f5f7f81d246a3d2c6aacef673f85de79e96a460641482d6da42b638d4ad2a
njrat
+ 1'000 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/210507-8r39wyr3js/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Executes dropped EXE
Unpacked files
SH256 hash:
cb1d2aaa9a74d5fb903d4a7dbf09d4087efa3a926be7d6b982171b12fee86dde
MD5 hash:
02bc6d3e9abac47ba2dd12c1ee10669e
SHA1 hash:
1603c071d4992e399e788b9826bdbfeab782c495
Link:
https://www.unpac.me/results/86753f5b-0e6d-4498-a6ce-404de5139d3d/
SH256 hash:
b94ffef7801deeebedddfc0a7e6a370870f413926661f995b62457ecf3766194
MD5 hash:
e9f890589975911d7be10ddb27c11412
SHA1 hash:
15c454007115be6b18fa58a267ec8b6cc7612cc1
Link:
https://www.unpac.me/results/86753f5b-0e6d-4498-a6ce-404de5139d3d/
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/b94ffef7801deeebedddfc0a7e6a370870f413926661f995b62457ecf3766194

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Create hunting rule
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
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.

Cape
Cape
https://www.capesandbox.com/analysis/152671/

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