MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f41b85f9d5781730263555803c9387d85afca6ef21c3640f11514bf22e82f082. 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
| SHA256 hash: | f41b85f9d5781730263555803c9387d85afca6ef21c3640f11514bf22e82f082 |
|---|---|
| SHA3-384 hash: | 78ced1aecad2ff6ca6cb28c3d733bad2056909c2b0fe01ce668d563b22ca941a700e72aea540e55fbee6a660168107e4 |
| SHA1 hash: | 8b8fdf9e27fab629d19d44972aa80cc7f6dfe863 |
| MD5 hash: | d8e64a1bb1704d037a6fb44f571095ae |
| humanhash: | bluebird-early-iowa-coffee |
| File name: | mostrecent.exe |
| Download: | download sample |
| Signature | njrat |
| File size: | 37'888 bytes |
| First seen: | 2023-11-06 01:38:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 384:+mOs0IiejvCVLO309QmykrtG+dA+VCwvOSiKrAF+rMRTyN/0L+EcoinblneHQM3/:YFdGdkrgYUwWS9rM+rMRa8NukVt |
| Threatray | 1'359 similar samples on MalwareBazaar |
| TLSH | T17B032A4D7FE181A8C4FD067B05B2D41207BAE04B6E23DD0E8EE564EA37636C58B50AF1 |
| TrID | 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.8% (.SCR) Windows screen saver (13097/50/3) 8.7% (.EXE) Win64 Executable (generic) (10523/12/4) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1) |
| Reporter |  adm1n_usa32 |
| Tags: | exe NjRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
378
Origin country :
ROVendor Threat Intelligence
Detection:
Njrat
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the process to change the firewall settings
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
cmd explorer fingerprint greyware keylogger lolbin lolbin netsh njrat packed rat replace stealer
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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
Verdict:
Malicious
Result
Threat name:
Njrat
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Backdoor.Ratenjay
Status:
Malicious
First seen:
2022-09-01 00:57:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
35 of 38 (92.11%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
njrat
Similar samples:
+ 1'349 additional samples on MalwareBazaar
Result
Malware family:
njrat
Score:
10/10
Tags:
family:njrat botnet:hacked evasion
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Legitimate hosting services abused for malware hosting/C2
Modifies Windows Firewall
Malware Config
C2 Extraction:
7.tcp.eu.ngrok.io:14306
Unpacked files
SH256 hash:
f41b85f9d5781730263555803c9387d85afca6ef21c3640f11514bf22e82f082
MD5 hash:
d8e64a1bb1704d037a6fb44f571095ae
SHA1 hash:
8b8fdf9e27fab629d19d44972aa80cc7f6dfe863
Detections:
NjRat
win_njrat_w1
win_njrat_g1
Malware family:
njRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | MALWARE_Win_NjRAT |
|---|---|
| Author: | ditekSHen |
| Description: | Detects NjRAT / Bladabindi / NjRAT Golden |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | Njrat |
|---|---|
| Author: | botherder https://github.com/botherder |
| Description: | Njrat |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_netsh_firewall_command |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Rule name: | SUSP_Ngrok_URL |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detects a PE file that contains an ngrok.io URL. This can be used as C2 channel |
| Rule name: | Windows_Trojan_Njrat_30f3c220 |
|---|
| Rule name: | Windows_Trojan_Njrat_30f3c220 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_njrat_w1 |
|---|---|
| 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.
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