MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3. 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: 18


Intelligence 18 IOCs 1 YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3
SHA3-384 hash: 1811507dce8cc66cda6f20f6c7670429d88b08b3b55e4ecfdbb591bc72e34995617730bd334848a1f3d4c4f0a4436355
SHA1 hash: fed599a8ee2a821e9f93109d1e660118ff3f0451
MD5 hash: 67931560029cc67967f024e3c42c107a
humanhash: rugby-white-mars-ten
File name:67931560029cc67967f024e3c42c107a.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2024-12-10 18:10:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 384:GaiKMizdnjnBhFbJ8ycPzNX9Bwy25FrAF+rMRTyN/0L+EcoinblneHQM3epzXiNR:zignlLJfcPzNXt2zrM+rMRa8NuIVt
TLSH T1FE033B4D7FE18568C5FD057B06B2D42207BAE04F6E23D90E8EF564AA37631C18B54AF2
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
45.83.207.236:5552

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
45.83.207.236:5552 https://threatfox.abuse.ch/ioc/1353965/

Intelligence

File Origin
# of uploads :
1
# of downloads :
611
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
352336c4bc2f0db999e86abb065598d8.exe
Verdict:
Malicious activity
Analysis date:
2024-12-10 01:46:19 UTC
Tags:
rat njrat bladabindi remote
Link:
https://app.any.run/tasks/14dbabb2-74b4-4d3a-b153-aab9c4ef3b0d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29039.UNOFFICIAL
Create hunting rule

Win.Packed.Bladabindi-7994427-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6758857f12dfc161719f35c9
Tags:
bladabindi autorun njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Creating a window
Using the Windows Management Instrumentation requests
Searching for the window
Searching for synchronization primitives
Connection attempt
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching a tool to kill processes
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi cmd explorer fingerprint lolbin netsh njrat rat vbnet windows
Link:
https://www.filescan.io/uploads/6758843bb8fd6a23b4d6859d/reports/17297d9d-25a7-478c-a096-6c70d988dea6/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3
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:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/db5d1bb0-5a45-4046-91ff-e9229723b023
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1572701
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Drops PE files to the user root directory
Drops PE files with benign system names
Found malware configuration
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
Protects its processes via BreakOnTermination flag
Sigma detected: Drops fake system file at system root drive
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Potentially Suspicious Malware Callback Communication
Suricata IDS alerts for network traffic
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: 1572701 Sample: 12bndiK63S.exe Startdate: 10/12/2024 Architecture: WINDOWS Score: 100 47 Suricata IDS alerts for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 15 other signatures 2->53 8 12bndiK63S.exe 1 6 2->8         started        12 UserOOBEBroker.exe 2 2->12         started        14 UserOOBEBroker.exe 3 2->14         started        16 UserOOBEBroker.exe 2 2->16         started        process3 file4 39 C:\Users\user\UserOOBEBroker.exe, PE32 8->39 dropped 41 C:\...\UserOOBEBroker.exe:Zone.Identifier, ASCII 8->41 dropped 43 C:\Users\user\AppData\...\12bndiK63S.exe.log, ASCII 8->43 dropped 63 Drops PE files to the user root directory 8->63 18 UserOOBEBroker.exe 2 11 8->18         started        signatures5 process6 dnsIp7 45 45.83.207.236, 49704, 5552 CLOUVIDERClouvider-GlobalASNGB Netherlands 18->45 31 C:\svchost.exe, PE32 18->31 dropped 33 C:\...\c932779fadb451b44351b10e6e56bf73.exe, PE32 18->33 dropped 35 C:\svchost.exe:Zone.Identifier, ASCII 18->35 dropped 37 2 other malicious files 18->37 dropped 55 Antivirus detection for dropped file 18->55 57 Multi AV Scanner detection for dropped file 18->57 59 Protects its processes via BreakOnTermination flag 18->59 61 7 other signatures 18->61 23 taskkill.exe 1 18->23         started        25 netsh.exe 2 18->25         started        file8 signatures9 process10 process11 27 conhost.exe 23->27         started        29 conhost.exe 25->29         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-12-05 02:51:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
37 of 38 (97.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thr6riypsrtxbnqs6uyompyejdkobxbgdulfsgfqtk6s3vt5bdbq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
error
njrat
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked discovery evasion persistence privilege_escalation trojan
Link:
https://tria.ge/reports/241210-wskpmasmbs/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops autorun.inf file
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Drops startup file
Modifies Windows Firewall
Njrat family
njRAT/Bladabindi
Malware Config
C2 Extraction:
45.83.207.236:5552
Verdict:
Malicious
Tags:
rat njrat Bladabindi Win.Packed.Bladabindi-7994427-0
YARA:
Windows_Trojan_Njrat_30f3c220 MALWARE_Win_NjRAT
Link:
https://app.threat.zone/submission/19fccfee-0d04-4568-8ce5-23a841935664
Unpacked files
SH256 hash:
99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3
MD5 hash:
67931560029cc67967f024e3c42c107a
SHA1 hash:
fed599a8ee2a821e9f93109d1e660118ff3f0451
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
Link:
https://www.unpac.me/results/b6913263-ee70-4278-91e1-cf4b50487428/
Parent samples :
7af46e45bdbb2d1b9731841c5c9000c7635b7d9d59e8e3e32508fe202d6132ba
99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3
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/99e3e8a30f946770b612f530e63f0448d4e0dc261d165918b09abd2dd67d08c3

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:ByteCode_MSIL_Backdoor_NjRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects NjRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments