MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b0e4ffe4f149f9b6435fec757518ae2ba99293d416a28a3aebda4e877c2013e0. 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: 10
| SHA256 hash: | b0e4ffe4f149f9b6435fec757518ae2ba99293d416a28a3aebda4e877c2013e0 |
|---|---|
| SHA3-384 hash: | b6dd9372dab9788fc67695242ae4cf3829194b656aeb6b1bd22505f587c42d37d2b0df455d8bfcc1da9f06ba9f55ea15 |
| SHA1 hash: | cf3ca2519b8f6a654807e384e31883cadf967aff |
| MD5 hash: | b4b3024e4530395f1befe7e000e521aa |
| humanhash: | red-july-leopard-grey |
| File name: | b4b3024e4530395f1befe7e000e521aa.exe |
| Download: | download sample |
| Signature | njrat |
| File size: | 95'232 bytes |
| First seen: | 2021-08-28 20:25:42 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 768:MY3SYgSgmnldjcRoMwrx7Y+DIkIITJbXX0pOt8ux82WXxrjEtCdnl2pi1Rz4Rk37:eYumlbrq+1NTZ0OojEwzGi1dDFD5gS |
| Threatray | 68 similar samples on MalwareBazaar |
| TLSH | T10093E84977E53524E1BF5AF79471B2004E38B4871602E39D48F259AA1B33AC44F89FEB |
| Reporter |  abuse_ch |
| Tags: | exe NjRAT RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 3.141.210.37:17284 | https://threatfox.abuse.ch/ioc/201737/ |
| 3.140.223.7:17284 | https://threatfox.abuse.ch/ioc/201738/ |
| 3.132.159.158:17284 | https://threatfox.abuse.ch/ioc/201739/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
539
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b4b3024e4530395f1befe7e000e521aa.exe
Verdict:
Malicious activity
Analysis date:
2021-08-28 20:26:22 UTC
Tags:
trojan rat njrat bladabindi
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a process with a hidden window
Enabling the 'hidden' option for analyzed file
Launching the process to change network settings
Launching the process to change the firewall settings
Malware family:
njRAT
Verdict:
Malicious
Result
Threat name:
Njrat
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to spread to USB devices (.Net source)
Drops PE files to the startup folder
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2021-08-25 23:15:21 UTC
AV detection:
34 of 44 (77.27%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
suspicious
Similar samples:
+ 58 additional samples on MalwareBazaar
Result
Malware family:
njrat
Score:
10/10
Tags:
family:njrat botnet:hacked evasion suricata
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops startup file
Modifies Windows Firewall
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
Malware Config
C2 Extraction:
Ni50Y3Aubmdyb2suaW8Strik:MTcyODQ=
Unpacked files
SH256 hash:
b0e4ffe4f149f9b6435fec757518ae2ba99293d416a28a3aebda4e877c2013e0
MD5 hash:
b4b3024e4530395f1befe7e000e521aa
SHA1 hash:
cf3ca2519b8f6a654807e384e31883cadf967aff
Malware family:
Winnti Group
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: | CN_disclosed_20180208_c |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from disclosed CN malware set |
| Reference: | https://twitter.com/cyberintproject/status/961714165550342146 |
| Rule name: | MALWARE_Win_NjRAT |
|---|---|
| Author: | ditekSHen |
| Description: | Detects NjRAT / Bladabindi |
| Rule name: | MAL_Winnti_Sample_May18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware sample from Burning Umbrella report - Generic Winnti Rule |
| Reference: | https://401trg.pw/burning-umbrella/ |
| Rule name: | Njrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect njRAT in memory |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_LightDefender_Njrat_Rule |
|---|---|
| Author: | Skystars LightDefender |
| Description: | Detects Njrat |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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