MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a
SHA3-384 hash: 4f978dae06ef15514a32bffc6b5ef6529fcaad45cbea5ac080436e7c1b140e0d9f9c40c3c5a52c0d0b1b2165ddba1b4c
SHA1 hash: 4662aa890e8a64ead9b9f5b5129fae3ca0c5b60e
MD5 hash: 00bf4984f80c066ce8f4ecaa93c337bb
humanhash: nebraska-kansas-colorado-cardinal
File name:BootstrapperNew.exe
Download: download sample
Signature njrat
Create hunting rule
File size:12'323'840 bytes
First seen:2025-04-10 11:39:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 196608:WboBI6F8e90gAT7Mad+xxaCSoh3Buv+6tA56+wDHBV7NeHExxX:Wb4P4T7MTxkC1Sv+UA58DHLi
TLSH T1E8C6F0B90A4BE22DA79181EB7337958D17DF61106B4EB703E45B2B246D423BD4F08C9E
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
dhash icon cc8e333333338ecc (6 x SalatStealer, 3 x DCRat, 3 x SheetRAT)
Reporter aachum
Tags:44CaliberStealer exe NjRAT


Avatar
iamaachum
https://www.youtube.com/watch?v=BLU1QytjzqA=> https://disk.yandex.ru/d/k7kNF1JIxNEHjQ

44Caliber Webhook: https://discord.com/api/webhooks/1324859273448128522/35NX8pTWSAG9BYKMS0plx5Cvuvs_8H5JGZj2A702Gn1FEZ64KTjaAl3gNKdJNc1eYdeY

Intelligence

File Origin
# of uploads :
1
# of downloads :
494
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
BootstrapperNew.exe
Verdict:
Malicious activity
Analysis date:
2025-04-10 11:45:05 UTC
Tags:
stealer evasion susp-powershell rat njrat bladabindi remote backdoor
Link:
https://app.any.run/tasks/7d1de9e0-02d3-483f-aa61-bf6334a0d92f

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/1593/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f7af40d6e7c3effaceea74
Tags:
bladabindi njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a window
Searching for synchronization primitives
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Stealing user critical data
Launching the process to change the firewall settings
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin obfuscated packed packed packer_detected reconnaissance remote vbnet
Link:
https://www.filescan.io/uploads/67f7ae1bb070fb3f9461beba/reports/a3f050c2-f5a5-4993-82f6-ac8020267ab0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c3ecf148-0e96-41fe-afa0-da53465a7f85
Result
Threat name:
44Caliber Stealer, BlackGuard, Njrat, Ra
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1661818
Signature
.NET source code contains potential unpacker
.NET source code contains suspicious base64 encoded strings
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Drops PE files with benign system names
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: System File Execution Location Anomaly
Sigma detected: Windows Binaries Write Suspicious Extensions
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses netsh to modify the Windows network and firewall settings
Yara detected 44Caliber Stealer
Yara detected BlackGuard
Yara detected Costura Assembly Loader
Yara detected Njrat
Yara detected Rags Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1661818 Sample: BootstrapperNew.exe Startdate: 10/04/2025 Architecture: WINDOWS Score: 100 83 freegeoip.app 2->83 85 pack-amber.gl.at.ply.gg 2->85 91 Suricata IDS alerts for network traffic 2->91 93 Found malware configuration 2->93 95 Malicious sample detected (through community Yara rule) 2->95 99 19 other signatures 2->99 11 winlogon.exe 5 2->11         started        14 BootstrapperNew.exe 3 2->14         started        17 winlogon.exe 1 2->17         started        19 2 other processes 2->19 signatures3 97 Tries to detect the country of the analysis system (by using the IP) 83->97 process4 file5 75 C:\Users\user\AppData\Local\...\sqls680.exe, PE32+ 11->75 dropped 77 C:\Users\user\AppData\Local\...\drivEn680.exe, PE32 11->77 dropped 21 drivEn680.exe 11->21         started        25 sqls680.exe 16 11->25         started        79 C:\Users\user\AppData\Local\...\winlogon.exe, PE32 14->79 dropped 81 C:\Users\user\...\BootstrapperNew.exe.log, CSV 14->81 dropped 129 Bypasses PowerShell execution policy 14->129 131 Adds a directory exclusion to Windows Defender 14->131 27 powershell.exe 23 14->27         started        29 powershell.exe 23 14->29         started        133 Multi AV Scanner detection for dropped file 17->133 31 WerFault.exe 19->31         started        33 WerFault.exe 19->33         started        35 WerFault.exe 19->35         started        signatures6 process7 file8 63 C:\Users\user\AppData\Local\...\sqls684.exe, PE32 21->63 dropped 65 C:\Users\user\AppData\Local\...\drivEn81.exe, PE32 21->65 dropped 101 Antivirus detection for dropped file 21->101 103 Found many strings related to Crypto-Wallets (likely being stolen) 21->103 37 sqls684.exe 21->37         started        41 drivEn81.exe 21->41         started        105 Multi AV Scanner detection for dropped file 25->105 44 WerFault.exe 25->44         started        46 WerFault.exe 25->46         started        107 Loading BitLocker PowerShell Module 27->107 48 conhost.exe 27->48         started        50 conhost.exe 29->50         started        signatures9 process10 dnsIp11 67 C:\Users\user\AppData\Local\...\Svchost.exe, PE32 37->67 dropped 109 Antivirus detection for dropped file 37->109 111 Drops PE files with benign system names 37->111 52 Svchost.exe 37->52         started        89 freegeoip.app 104.21.64.1, 443, 49695 CLOUDFLARENETUS United States 41->89 113 Multi AV Scanner detection for dropped file 41->113 115 Found many strings related to Crypto-Wallets (likely being stolen) 41->115 117 Tries to harvest and steal browser information (history, passwords, etc) 41->117 119 Tries to steal Crypto Currency Wallets 41->119 57 WerFault.exe 41->57         started        file12 signatures13 process14 dnsIp15 87 pack-amber.gl.at.ply.gg 147.185.221.19, 49701, 49702, 49703 SALSGIVERUS United States 52->87 69 C:\svchost.exe, PE32 52->69 dropped 71 C:\...\48226f5e709c2b0a3d3ef2e30ef7bca8.exe, PE32 52->71 dropped 73 C:\autorun.inf, Microsoft 52->73 dropped 121 Antivirus detection for dropped file 52->121 123 System process connects to network (likely due to code injection or exploit) 52->123 125 Protects its processes via BreakOnTermination flag 52->125 127 6 other signatures 52->127 59 netsh.exe 52->59         started        file16 signatures17 process18 process19 61 conhost.exe 59->61         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2025-04-10 11:40:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=suvnnjueupclxqaessjgvez4nbyhxahk2ehkwpyjnuss3hifj2na._file
Result
Malware family:
44caliber
Create hunting rule
Score:
  10/10
Tags:
family:44caliber defense_evasion discovery execution persistence privilege_escalation spyware stealer
Link:
https://tria.ge/reports/250410-nswswszxfv/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops autorun.inf file
Drops file in System32 directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Modifies Windows Firewall
44Caliber
44Caliber family
Malware Config
C2 Extraction:
https://discord.com/api/webhooks/1324859273448128522/35NX8pTWSAG9BYKMS0plx5Cvuvs_8H5JGZj2A702Gn1FEZ64KTjaAl3gNKdJNc1eYdeY
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1741db11-c4c4-4e1a-8828-d71dacb8b86a
Unpacked files
SH256 hash:
952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a
MD5 hash:
00bf4984f80c066ce8f4ecaa93c337bb
SHA1 hash:
4662aa890e8a64ead9b9f5b5129fae3ca0c5b60e
Link:
https://www.unpac.me/results/d03e1b1b-6d1c-4505-b63d-92cf115b641b/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/952ad6a684a3/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/952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

njrat

Executable exe 952ad6a684a3c4bbc00494926a933c68707b80ead10eab3f096d252d9d054e9a

(this sample)

  
Link
https://tria.ge/250410-nm2f7azvhw/behavioral1
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/1593/

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