MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb. 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: 19


Intelligence 19 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb
SHA3-384 hash: fed914ad2289f52bdd2440b8d3069a291c15dfbd3731fc5ea11ef473ccdd3814f14c65c89c32630634da0789125f5711
SHA1 hash: 8343262ce152b88508474457db596b5035586155
MD5 hash: 145ec63fa85b1dd8c0a4c528a3b15cc6
humanhash: utah-ink-echo-pluto
File name:1727246228bf52474d96d0c91d76eecd39cfb06284f20ad0f3e787fb96b50f595788ca18c5809.dat-decoded
Download: download sample
Signature njrat
Create hunting rule
File size:32'768 bytes
First seen:2024-09-25 06:37:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 384:u0bUe5XB4e0XOOSSGgFS6Z/73xWTStTUFQqz9UtObbi:/T9BuNSgS6BNJCbi
Threatray 948 similar samples on MalwareBazaar
TLSH T111E209467BA58215C6BD5AFC8CB313114772E3438532EBAF5CDC58CA4BA76D04241EE9
TrID 51.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.4% (.EXE) Win64 Executable (generic) (10523/12/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter abuse_ch
Tags:base64-decoded exe NjRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
475
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
1727246228bf52474d96d0c91d76eecd39cfb06284f20ad0f3e787fb96b50f595788ca18c5809.dat-decoded
Verdict:
Malicious activity
Analysis date:
2024-09-25 07:05:56 UTC
Tags:
njrat
Link:
https://app.any.run/tasks/810bd8d4-89c9-4334-9750-ec0b01ab76a0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.njRAT-7445143-0
Create hunting rule

Win.Dropper.Detected-9941784-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66f3afcd8aca58c2b2c733fc
Tags:
Network Stealth Bladabindi Micro Tori Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
DNS request
Connection attempt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
backdoor cmd keylogger lolbin njrat rat vbnet
Link:
https://www.filescan.io/uploads/66f3afce0411a5a380cc746a/reports/f4facf26-ca45-4468-bc13-16ca092ebdaa/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb
Result
Verdict:
UNKNOWN
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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d8690244-c459-4ab4-b9b1-55f47cc470d4
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1517930
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-09-25 06:38:04 UTC
File Type:
PE (.Net Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5r5dzlmwhu4h2dvydk6v7z63c7dkuy2kymh7qscui7xmfnonhxfq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
3584010af4c61f06ddedbc2d740c5c787ac08e62e00f6ec267cd73baef3b21f4
njrat
3f24a0243264894973daaddd665b311850024f99a47f935ca6ecba0d95f5f283
njrat
4e5ded274678eb23a00ebdd9c03de6d04467a6452275ce76f0224a067f241917
njrat
8e9629451b8a090834f96bd6688184ad7a18aacd33784193f273c7796e3c01b3
njrat
91b1b82d19155a4028599299e72779af33147ef437bbe72055550fe8315ce8db
njrat
928fa2abb515bdef1c998054997b1d16b4030dfeee4640b3bd2508e43bea06a5
njrat
cabefcbafeb635832ee95c34da10993a8e47231de1bae661d3448e5ddd7aa2f3
njrat
+ 938 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:nyan cat discovery
Link:
https://tria.ge/reports/240925-hd2spstcra/
Behaviour
Suspicious use of AdjustPrivilegeToken
System Location Discovery: System Language Discovery
Malware Config
C2 Extraction:
notificadoresrma.duckdns.org:2054
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e8497dd1-3220-42cc-963e-875b3d13d94f
Unpacked files
SH256 hash:
ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb
MD5 hash:
145ec63fa85b1dd8c0a4c528a3b15cc6
SHA1 hash:
8343262ce152b88508474457db596b5035586155
Detections:
win_njrat
Create hunting rule
Link:
https://www.unpac.me/results/bf17bb43-f3b3-456c-9cd3-352c46d5c0a5/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ec7a3cad963d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.97
Link:
https://yomi.yoroi.company/submissions/ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb

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:ByteCode_MSIL_Backdoor_NjRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects NjRAT backdoor.
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:njrat_v1
Create hunting rule
Author:RandomMalware
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_njrat_bytecodes_V2_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yarahub_win_njrat_bytecodes_V2_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

bf52474d96d0c91d76eecd39cfb06284f20ad0f3e787fb96b50f595788ca18c5

njrat

Executable exe ec7a3cad963d387d0eb81abd5fe7db17c6aa634ac30ff8485447eec2b5cd3dcb

(this sample)

  
Dropped by
SHA256 bf52474d96d0c91d76eecd39cfb06284f20ad0f3e787fb96b50f595788ca18c5
  
Dropped by
MD5 3663c5bcddef15580d853428081990dc
  
URLhaus
https://urlhaus.abuse.ch/url/3190183/
  
Delivery method
Distributed via web download

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

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