MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81833f5962fbaf1c2ee0770dd38375d9e45766dd8e0aad4455e7863a7d5dd3e0. 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: 11
| SHA256 hash: | 81833f5962fbaf1c2ee0770dd38375d9e45766dd8e0aad4455e7863a7d5dd3e0 |
|---|---|
| SHA3-384 hash: | f8f692fffa2c674bc81c77f0c3d33964408f7e9fe2e9c6f7f84d61224e7ce1e4a176c495a1aa989b90855d04e1ada08b |
| SHA1 hash: | 90046bae39f31d9b919a09c0663d59621b76c1d8 |
| MD5 hash: | 88dcbf426dba95a264c87fa0239e955f |
| humanhash: | foxtrot-fix-ink-butter |
| File name: | 88dcbf426dba95a264c87fa0239e955f.exe |
| Download: | download sample |
| Signature | njrat |
| File size: | 84'480 bytes |
| First seen: | 2022-05-16 17:22:07 UTC |
| Last seen: | 2022-05-16 17:37:29 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 768:xIbeZpWfmuMBADksHTQbZIlZINdSbt5z6R2TUT7ENJcv1wtHVZp+Y9GkvKGOZrJr:wuuMBOEdSbb6vY012ToYrGrN |
| Threatray | 1'736 similar samples on MalwareBazaar |
| TLSH | T12783E412369B4E51CC28677D54EF0720CFECAB83363FA7996F9812584FF12934E91689 |
| TrID | 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10523/12/4) 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) (4505/5/1) |
| 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 |
|---|---|
| 41.105.208.43:7896 | https://threatfox.abuse.ch/ioc/573518/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
ID:
1
File name:
88dcbf426dba95a264c87fa0239e955f.exe
Verdict:
Malicious activity
Analysis date:
2022-05-16 20:46:38 UTC
Tags:
trojan rat njrat bladabindi
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
Creating a window
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
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.
Verdict:
Suspicious
Result
Threat name:
Njrat
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Njrat
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Lazy
Status:
Malicious
First seen:
2022-05-15 14:34:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 41 (48.78%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
njrat
Similar samples:
+ 1'726 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
suricata
Behaviour
Suspicious use of AdjustPrivilegeToken
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
Unpacked files
SH256 hash:
e6c8da1b58ab05e2cffc7c97dacc840110f0aa5d4f5f4b19dce57fd7b1ff89ba
MD5 hash:
cad656b018d92d5f160f6ee677ce2a0f
SHA1 hash:
3c787d75658d6e3ae9573847d90786e4655086cf
SH256 hash:
81833f5962fbaf1c2ee0770dd38375d9e45766dd8e0aad4455e7863a7d5dd3e0
MD5 hash:
88dcbf426dba95a264c87fa0239e955f
SHA1 hash:
90046bae39f31d9b919a09c0663d59621b76c1d8
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
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: | AgentTesla |
|---|---|
| Author: | Harish Kumar P |
| Description: | Yara Rule to Detect AgentTesla |
| Rule name: | pe_imphash |
|---|
| 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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