MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2. 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: 17


Intelligence 17 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2
SHA3-384 hash: 5fbfef0bed0b2b479a7ce507e5f4d26160ff0a235195220b6ee8e121a7d7acb73754810df6b65fd75cf632835bbed43e
SHA1 hash: c05ae179575df57a7e0e7376749056a3fad67643
MD5 hash: 0647d85ad26dd42f69aeae272251355a
humanhash: tennis-montana-four-mexico
File name:0647d85ad26dd42f69aeae272251355a.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2024-09-06 14:55:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'998 x AgentTesla, 19'906 x Formbook, 12'331 x SnakeKeylogger)
ssdeep 384:3mOs0IiejvCVLO309QmykrtG+dA+VfwvOSiKrAF+rMRTyN/0L+EcoinblneHQM3M:NFdGdkrgYRwWS9rM+rMRa8NuiSt
TLSH T1C9032A4D7FE181A8C4FD067B05B2D41207BAE04B6A23DD0E8EE564EA37636C58B54AF1
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) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.125.209.94:13886

Intelligence

File Origin
# of uploads :
1
# of downloads :
642
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
0647d85ad26dd42f69aeae272251355a.exe
Verdict:
Malicious activity
Analysis date:
2024-09-06 14:58:02 UTC
Tags:
rat njrat bladabindi remote
Link:
https://app.any.run/tasks/de50739a-b9e0-4f2f-9b5d-6d26dad7a2f6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29039.UNOFFICIAL
Create hunting rule

Win.Packed.Bladabindi-7994427-0
Create hunting rule

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

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66db1804f3d7ccf99f9030ea
Tags:
Execution Network Stealth Njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
Connection attempt to an infection source
Using the Windows Management Instrumentation requests
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:
backdoor bladabindi cmd explorer fingerprint keylogger lolbin netsh njrat overlay rat stealer vbnet
Link:
https://www.filescan.io/uploads/66db180e88ccac59907cd66e/reports/1e7d7bff-5285-47c1-a0c1-36b2719a7760/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aad6e1a7-ab82-4c49-8498-d8c4f03f0319
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1505701
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
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-09-01 03:02:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
36 of 38 (94.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mifi5zmdhpm35jze22sb2z6b3c2yb2hphq5in7txvxgzvbyuesza._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked discovery evasion persistence privilege_escalation
Link:
https://tria.ge/reports/240906-sa1fkstanf/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Legitimate hosting services abused for malware hosting/C2
Modifies Windows Firewall
Malware Config
C2 Extraction:
0.tcp.eu.ngrok.io:13886
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/37582f7b-a796-467d-833a-2bd9f3a5eb4f
Unpacked files
SH256 hash:
620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2
MD5 hash:
0647d85ad26dd42f69aeae272251355a
SHA1 hash:
c05ae179575df57a7e0e7376749056a3fad67643
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/19a90dd0-df49-431d-941e-886bc2063848/
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/620a8ee5833bd9bea724d6a41d67c1d8b580e8ef3c3a86fe77adcd9a871424b2

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:SUSP_Ngrok_URL
Create hunting rule
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
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_w1
Create hunting rule
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.

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

Comments