MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4af8f255dd229833ca59cf894ce9ad1e3b1685aa6d245356c04e71c2dd69ec60. 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: | 4af8f255dd229833ca59cf894ce9ad1e3b1685aa6d245356c04e71c2dd69ec60 |
|---|---|
| SHA3-384 hash: | 1d5b0d0cd5d120f3dfdec2a66c775899c2f7f7638465cc4be4d34b96bc772d1eed706815c8efe348f1ba15a2fa748175 |
| SHA1 hash: | 066e7ad05a738d5d66c8bcf6d815328d0152686f |
| MD5 hash: | 13955e2ae3cf72013344f354393c83b4 |
| humanhash: | failed-seventeen-foxtrot-angel |
| File name: | 13955e2ae3cf72013344f354393c83b4.exe |
| Download: | download sample |
| Signature | njrat |
| File size: | 37'888 bytes |
| First seen: | 2023-10-02 17:30:19 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:YWlZkitgZf5W9cTYXyc/SKlMA+zfzQnssIBErAF+rMRTyN/0L+EcoinblneHQM3X:llyjjTYic/SKq8ssISrM+rMRa8NuRit |
| Threatray | 1'341 similar samples on MalwareBazaar |
| TLSH | T170032A4D7FE18168C5FD097B05B2D41207BAE04F6E23D90E8EE5649A3B636C18F50AF2 |
| 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 |  abuse_ch |
| Tags: | exe NjRAT RAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
357
Origin country :
NLVendor Threat Intelligence
Malware family:
njrat
ID:
1
File name:
13955e2ae3cf72013344f354393c83b4.exe
Verdict:
Malicious activity
Analysis date:
2023-10-02 17:53:14 UTC
Tags:
rat njrat bladabindi remote
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Njrat
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
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 greyware keylogger lolbin netsh njrat packed rat replace stealer
Verdict:
Malicious
Labled as:
Trojan.Generic
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:
spre.troj.adwa.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 dropped file
Antivirus detection for URL or domain
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 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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Ratenjay
Status:
Malicious
First seen:
2023-09-30 09:10:21 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:
+ 1'331 additional samples on MalwareBazaar
Result
Malware family:
njrat
Score:
10/10
Tags:
family:njrat botnet:hacked evasion persistence trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
0.tcp.eu.ngrok.io:11534
Unpacked files
SH256 hash:
4af8f255dd229833ca59cf894ce9ad1e3b1685aa6d245356c04e71c2dd69ec60
MD5 hash:
13955e2ae3cf72013344f354393c83b4
SHA1 hash:
066e7ad05a738d5d66c8bcf6d815328d0152686f
Detections:
NjRat
win_njrat_w1
win_njrat_g1
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 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Windows_Trojan_Njrat_30f3c220 |
|---|
| 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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