MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf. 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: 12


Intelligence 12 IOCs YARA 8 File information Comments
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SHA256 hash: 49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf
SHA3-384 hash: 456768e57e438f506bf36f0270918c2e83dc98599313cca727c8e34cb68aed82deb9ec1a0bf392996bd26cfdc0f932cb
SHA1 hash: b51a6856f1539d5e1d38aba0212222ebc69e7922
MD5 hash: 749ebef6c4ae90cf84e427ca29f2cc2d
humanhash: bulldog-victor-alanine-india
File name:49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf
Download: download sample
Signature njrat
Create hunting rule
File size:1'033'560 bytes
First seen:2021-08-30 06:12:22 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:uAHnh+eWsN3skA4RV1Hom2KXMmHay5uertmY3Z5i:Zh+ZkldoPK8YayGYi
Threatray 1'158 similar samples on MalwareBazaar
TLSH T132259D02B3D5C076FFABA2739F69B24256BC6D250133842F13982DB9BD711B1127E663
dhash icon 28ad9a395654a4c6 (17 x njrat)
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
379
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/183419/
Detection(s):
Win.Trojan.njRAT-9864953-1
Create hunting rule

Win.Trojan.njRAT-9867992-1
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Connection attempt to an infection source
Adding an access-denied ACE
Creating a file
Creating a process with a hidden window
Sending a UDP request
Creating a process from a recently created file
Query of malicious DNS domain
Unauthorized injection to a system process
Enabling a "Do not show hidden files" option
Enabling autorun by creating a file
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a520ba24-0d09-4d15-ba28-1f5e12121761
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842193
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)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Process Start Without DLL
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 signatures2 2 Behavior Graph ID: 474628 Sample: nC5EDVuYN6 Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 11 other signatures 2->47 7 nC5EDVuYN6.exe 3 2->7         started        11 AppVCatalog.exe 1 2->11         started        13 AppVCatalog.exe 1 2->13         started        process3 file4 35 C:\Users\user\...\AppVCatalog.exe, PE32 7->35 dropped 49 Contains functionality to inject code into remote processes 7->49 51 Uses schtasks.exe or at.exe to add and modify task schedules 7->51 53 Writes to foreign memory regions 7->53 15 RegAsm.exe 3 4 7->15         started        19 schtasks.exe 1 7->19         started        55 Antivirus detection for dropped file 11->55 57 Allocates memory in foreign processes 11->57 59 Injects a PE file into a foreign processes 11->59 21 schtasks.exe 1 11->21         started        23 RegAsm.exe 3 11->23         started        25 schtasks.exe 1 13->25         started        27 RegAsm.exe 2 13->27         started        signatures5 process6 dnsIp7 37 microsoftdnsbug.duckdns.org 181.141.7.190, 6699 EPMTelecomunicacionesSAESPCO Colombia 15->37 39 Changes the view of files in windows explorer (hidden files and folders) 15->39 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        signatures8 process9
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf/
Threat name:
Win32.Ransomware.Bosloki
Create hunting rule
Status:
Malicious
First seen:
2021-08-17 05:51:20 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
38 of 46 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jhcy7zohlbdskdd6kzt6oq3xpu2gkxwuckl2z4ds7d36xhntcthq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
10fb9346fd965b69c8aa00c9350988d18364857f65ff7e123263a67667413228
njrat
11edfbb9381d84595491324562ad13b2c218abb38eb97b786e52ab70eb67ce25
njrat
247b57d55cdaa287404a2db0faf75a023bc0ed937b9fd9319e14c415cdfe57c6
njrat
40d88f1138536eab0e3d8dfdb227e96d34ba265d34138ccb436191ecca4b8367
njrat
62e099194f9f946b0c0dd4c474c862dadb605101b87dc2eb7b8e43f6510ae3d1
njrat
b94ffef7801deeebedddfc0a7e6a370870f413926661f995b62457ecf3766194
njrat
ce66906eb9b0e76d2b0e9b313e84c543412ae3ab598e57dce0b913759946254e
njrat
dd53f452a1265736a066c7073a0d83f42b861d1954a0ae02c654896692e4629a
njrat
efcd93564fc1fcdfac673a30ac1150508e8cb4a3e4f981da05ef61392f684a1c
njrat
f00f5f7f81d246a3d2c6aacef673f85de79e96a460641482d6da42b638d4ad2a
njrat
+ 1'148 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:limebot3 trojan
Link:
https://tria.ge/reports/210830-ptg26y77es/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
autoit_exe
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
microsoftdnsbug.duckdns.org:6699
Unpacked files
SH256 hash:
e8961e597049c14e458016361663a2ce650bb4e977de490632deab520d78f57b
MD5 hash:
775cbd8b7e505303477dc08f5e78a1c9
SHA1 hash:
2bb6b09d63746a942894a5b7a98163a92c7cbe48
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/6066b94c-dcf1-44eb-9766-39cc4d357221/
Parent samples :
247b57d55cdaa287404a2db0faf75a023bc0ed937b9fd9319e14c415cdfe57c6
49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf
eaa939ad48a392c7dec3cadc1119660cb61c9e1c4c0392607117e051c66b5e98
40d88f1138536eab0e3d8dfdb227e96d34ba265d34138ccb436191ecca4b8367
dfd682d846b7bafdf130893d385c8d5a4fcc64d1c1b81e114e46e8deb08ae664
dd53f452a1265736a066c7073a0d83f42b861d1954a0ae02c654896692e4629a
SH256 hash:
49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf
MD5 hash:
749ebef6c4ae90cf84e427ca29f2cc2d
SHA1 hash:
b51a6856f1539d5e1d38aba0212222ebc69e7922
Link:
https://www.unpac.me/results/6066b94c-dcf1-44eb-9766-39cc4d357221/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/49c58fe5c758/report/overview.html
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/49c58fe5c75847250c7e5667e743777d34655ed41297acf072f8f7eb9db314cf

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: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: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/183419/

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